K32L2B31A

ADC16: 16-bit SAR Analog-to-Digital Converter Driver

void ADC16_Init(ADC_Type *base, const adc16_config_t *config)

Initializes the ADC16 module.

Parameters:

base – ADC16 peripheral base address.
config – Pointer to configuration structure. See “adc16_config_t”.

void ADC16_Deinit(ADC_Type *base)

De-initializes the ADC16 module.

Parameters:

base – ADC16 peripheral base address.

void ADC16_GetDefaultConfig(adc16_config_t *config)

Gets an available pre-defined settings for the converter’s configuration.

This function initializes the converter configuration structure with available settings. The default values are as follows.

config->referenceVoltageSource     = kADC16_ReferenceVoltageSourceVref;
config->clockSource                = kADC16_ClockSourceAsynchronousClock;
config->enableAsynchronousClock    = false;
config->clockDivider               = kADC16_ClockDivider8;
config->resolution                 = kADC16_ResolutionSE12Bit;
config->longSampleMode             = kADC16_LongSampleDisabled;
config->enableHighSpeed            = false;
config->enableLowPower             = false;
config->enableContinuousConversion = false;

Parameters:

config – Pointer to the configuration structure.

status_t ADC16_DoAutoCalibration(ADC_Type *base)

Automates the hardware calibration.

This auto calibration helps to adjust the plus/minus side gain automatically. Execute the calibration before using the converter. Note that the hardware trigger should be used during the calibration.

Parameters:

base – ADC16 peripheral base address.

Return values:

kStatus_Success – Calibration is done successfully.
kStatus_Fail – Calibration has failed.

Returns:

Execution status.

static inline void ADC16_SetOffsetValue(ADC_Type *base, int16_t value)

Sets the offset value for the conversion result.

This offset value takes effect on the conversion result. If the offset value is not zero, the reading result is subtracted by it. Note, the hardware calibration fills the offset value automatically.

Parameters:

base – ADC16 peripheral base address.
value – Setting offset value.

static inline void ADC16_EnableDMA(ADC_Type *base, bool enable)

Enables generating the DMA trigger when the conversion is complete.

Parameters:

base – ADC16 peripheral base address.
enable – Switcher of the DMA feature. “true” means enabled, “false” means not enabled.

static inline void ADC16_EnableHardwareTrigger(ADC_Type *base, bool enable)

Enables the hardware trigger mode.

Parameters:

base – ADC16 peripheral base address.
enable – Switcher of the hardware trigger feature. “true” means enabled, “false” means not enabled.

void ADC16_SetChannelMuxMode(ADC_Type *base, adc16_channel_mux_mode_t mode)

Sets the channel mux mode.

Some sample pins share the same channel index. The channel mux mode decides which pin is used for an indicated channel.

Parameters:

base – ADC16 peripheral base address.
mode – Setting channel mux mode. See “adc16_channel_mux_mode_t”.

void ADC16_SetHardwareCompareConfig(ADC_Type *base, const adc16_hardware_compare_config_t *config)

Configures the hardware compare mode.

The hardware compare mode provides a way to process the conversion result automatically by using hardware. Only the result in the compare range is available. To compare the range, see “adc16_hardware_compare_mode_t” or the appopriate reference manual for more information.

Parameters:

base – ADC16 peripheral base address.
config – Pointer to the “adc16_hardware_compare_config_t” structure. Passing “NULL” disables the feature.

void ADC16_SetHardwareAverage(ADC_Type *base, adc16_hardware_average_mode_t mode)

Sets the hardware average mode.

The hardware average mode provides a way to process the conversion result automatically by using hardware. The multiple conversion results are accumulated and averaged internally making them easier to read.

Parameters:

base – ADC16 peripheral base address.
mode – Setting the hardware average mode. See “adc16_hardware_average_mode_t”.

void ADC16_SetPGAConfig(ADC_Type *base, const adc16_pga_config_t *config)

Configures the PGA for the converter’s front end.

Parameters:

base – ADC16 peripheral base address.
config – Pointer to the “adc16_pga_config_t” structure. Passing “NULL” disables the feature.

uint32_t ADC16_GetStatusFlags(ADC_Type *base)

Gets the status flags of the converter.

Parameters:

base – ADC16 peripheral base address.

Returns:

Flags’ mask if indicated flags are asserted. See “_adc16_status_flags”.

void ADC16_ClearStatusFlags(ADC_Type *base, uint32_t mask)

Clears the status flags of the converter.

Parameters:

base – ADC16 peripheral base address.
mask – Mask value for the cleared flags. See “_adc16_status_flags”.

static inline void ADC16_EnableAsynchronousClockOutput(ADC_Type *base, bool enable)

Enable/disable ADC Asynchronous clock output to other modules.

Parameters:

base – ADC16 peripheral base address.
enable – Used to enable/disable ADC ADACK output.
- true Asynchronous clock and clock output is enabled regardless of the state of the ADC.
- false Asynchronous clock output disabled, asynchronous clock is enabled only if it is selected as input clock and a conversion is active.

void ADC16_SetChannelConfig(ADC_Type *base, uint32_t channelGroup, const adc16_channel_config_t *config)

Configures the conversion channel.

This operation triggers the conversion when in software trigger mode. When in hardware trigger mode, this API configures the channel while the external trigger source helps to trigger the conversion.

Note that the “Channel Group” has a detailed description. To allow sequential conversions of the ADC to be triggered by internal peripherals, the ADC has more than one group of status and control registers, one for each conversion. The channel group parameter indicates which group of registers are used, for example, channel group 0 is for Group A registers and channel group 1 is for Group B registers. The channel groups are used in a “ping-pong” approach to control the ADC operation. At any point, only one of the channel groups is actively controlling ADC conversions. The channel group 0 is used for both software and hardware trigger modes. Channel group 1 and greater indicates multiple channel group registers for use only in hardware trigger mode. See the chip configuration information in the appropriate MCU reference manual for the number of SC1n registers (channel groups) specific to this device. Channel group 1 or greater are not used for software trigger operation. Therefore, writing to these channel groups does not initiate a new conversion. Updating the channel group 0 while a different channel group is actively controlling a conversion is allowed and vice versa. Writing any of the channel group registers while that specific channel group is actively controlling a conversion aborts the current conversion.

Parameters:

base – ADC16 peripheral base address.
channelGroup – Channel group index.
config – Pointer to the “adc16_channel_config_t” structure for the conversion channel.

static inline uint32_t ADC16_GetChannelConversionValue(ADC_Type *base, uint32_t channelGroup)

Gets the conversion value.

Parameters:

base – ADC16 peripheral base address.
channelGroup – Channel group index.

Returns:

Conversion value.

uint32_t ADC16_GetChannelStatusFlags(ADC_Type *base, uint32_t channelGroup)

Gets the status flags of channel.

Parameters:

base – ADC16 peripheral base address.
channelGroup – Channel group index.

Returns:

Flags’ mask if indicated flags are asserted. See “_adc16_channel_status_flags”.

FSL_ADC16_DRIVER_VERSION: ADC16 driver version 2.3.0.

enum _adc16_channel_status_flags

Channel status flags.

Values:

enumerator kADC16_ChannelConversionDoneFlag: Conversion done.

enum _adc16_status_flags

Converter status flags.

Values:

enumerator kADC16_ActiveFlag: Converter is active.

enumerator kADC16_CalibrationFailedFlag: Calibration is failed.

enum _adc_channel_mux_mode

Channel multiplexer mode for each channel.

For some ADC16 channels, there are two pin selections in channel multiplexer. For example, ADC0_SE4a and ADC0_SE4b are the different channels that share the same channel number.

Values:

enumerator kADC16_ChannelMuxA: For channel with channel mux a.

enumerator kADC16_ChannelMuxB: For channel with channel mux b.

enum _adc16_clock_divider

Clock divider for the converter.

Values:

enumerator kADC16_ClockDivider1: For divider 1 from the input clock to the module.

enumerator kADC16_ClockDivider2: For divider 2 from the input clock to the module.

enumerator kADC16_ClockDivider4: For divider 4 from the input clock to the module.

enumerator kADC16_ClockDivider8: For divider 8 from the input clock to the module.

enum _adc16_resolution

Converter’s resolution.

Values:

enumerator kADC16_Resolution8or9Bit: Single End 8-bit or Differential Sample 9-bit.

enumerator kADC16_Resolution12or13Bit: Single End 12-bit or Differential Sample 13-bit.

enumerator kADC16_Resolution10or11Bit: Single End 10-bit or Differential Sample 11-bit.

enumerator kADC16_ResolutionSE8Bit: Single End 8-bit.

enumerator kADC16_ResolutionSE12Bit: Single End 12-bit.

enumerator kADC16_ResolutionSE10Bit: Single End 10-bit.

enumerator kADC16_ResolutionDF9Bit: Differential Sample 9-bit.

enumerator kADC16_ResolutionDF13Bit: Differential Sample 13-bit.

enumerator kADC16_ResolutionDF11Bit: Differential Sample 11-bit.

enum _adc16_clock_source

Clock source.

Values:

enumerator kADC16_ClockSourceAlt0: Selection 0 of the clock source.

enumerator kADC16_ClockSourceAlt1: Selection 1 of the clock source.

enumerator kADC16_ClockSourceAlt2: Selection 2 of the clock source.

enumerator kADC16_ClockSourceAlt3: Selection 3 of the clock source.

enumerator kADC16_ClockSourceAsynchronousClock: Using internal asynchronous clock.

enum _adc16_long_sample_mode

Long sample mode.

Values:

enumerator kADC16_LongSampleCycle24: 20 extra ADCK cycles, 24 ADCK cycles total.

enumerator kADC16_LongSampleCycle16: 12 extra ADCK cycles, 16 ADCK cycles total.

enumerator kADC16_LongSampleCycle10: 6 extra ADCK cycles, 10 ADCK cycles total.

enumerator kADC16_LongSampleCycle6: 2 extra ADCK cycles, 6 ADCK cycles total.

enumerator kADC16_LongSampleDisabled: Disable the long sample feature.

enum _adc16_reference_voltage_source

Reference voltage source.

Values:

enumerator kADC16_ReferenceVoltageSourceVref: For external pins pair of VrefH and VrefL.

enumerator kADC16_ReferenceVoltageSourceValt: For alternate reference pair of ValtH and ValtL.

enum _adc16_hardware_average_mode

Hardware average mode.

Values:

enumerator kADC16_HardwareAverageCount4: For hardware average with 4 samples.

enumerator kADC16_HardwareAverageCount8: For hardware average with 8 samples.

enumerator kADC16_HardwareAverageCount16: For hardware average with 16 samples.

enumerator kADC16_HardwareAverageCount32: For hardware average with 32 samples.

enumerator kADC16_HardwareAverageDisabled: Disable the hardware average feature.

enum _adc16_hardware_compare_mode

Hardware compare mode.

Values:

enumerator kADC16_HardwareCompareMode0: x < value1.

enumerator kADC16_HardwareCompareMode1: x > value1.

enumerator kADC16_HardwareCompareMode2: if value1 <= value2, then x < value1 || x > value2; else, value1 > x > value2.

enumerator kADC16_HardwareCompareMode3: if value1 <= value2, then value1 <= x <= value2; else x >= value1 || x <= value2.

enum _adc16_pga_gain

PGA’s Gain mode.

Values:

enumerator kADC16_PGAGainValueOf1: For amplifier gain of 1.

enumerator kADC16_PGAGainValueOf2: For amplifier gain of 2.

enumerator kADC16_PGAGainValueOf4: For amplifier gain of 4.

enumerator kADC16_PGAGainValueOf8: For amplifier gain of 8.

enumerator kADC16_PGAGainValueOf16: For amplifier gain of 16.

enumerator kADC16_PGAGainValueOf32: For amplifier gain of 32.

enumerator kADC16_PGAGainValueOf64: For amplifier gain of 64.

typedef enum _adc_channel_mux_mode adc16_channel_mux_mode_t

Channel multiplexer mode for each channel.

For some ADC16 channels, there are two pin selections in channel multiplexer. For example, ADC0_SE4a and ADC0_SE4b are the different channels that share the same channel number.

typedef enum _adc16_clock_divider adc16_clock_divider_t: Clock divider for the converter.

typedef enum _adc16_resolution adc16_resolution_t: Converter’s resolution.

typedef enum _adc16_clock_source adc16_clock_source_t: Clock source.

typedef enum _adc16_long_sample_mode adc16_long_sample_mode_t: Long sample mode.

typedef enum _adc16_reference_voltage_source adc16_reference_voltage_source_t: Reference voltage source.

typedef enum _adc16_hardware_average_mode adc16_hardware_average_mode_t: Hardware average mode.

typedef enum _adc16_hardware_compare_mode adc16_hardware_compare_mode_t: Hardware compare mode.

typedef enum _adc16_pga_gain adc16_pga_gain_t: PGA’s Gain mode.

typedef struct _adc16_config adc16_config_t: ADC16 converter configuration.

typedef struct _adc16_hardware_compare_config adc16_hardware_compare_config_t: ADC16 Hardware comparison configuration.

typedef struct _adc16_channel_config adc16_channel_config_t: ADC16 channel conversion configuration.

typedef struct _adc16_pga_config adc16_pga_config_t: ADC16 programmable gain amplifier configuration.

struct _adc16_config

#include <fsl_adc16.h>

ADC16 converter configuration.

Public Members

adc16_reference_voltage_source_t referenceVoltageSource: Select the reference voltage source.

adc16_clock_source_t clockSource: Select the input clock source to converter.

bool enableAsynchronousClock: Enable the asynchronous clock output.

adc16_clock_divider_t clockDivider: Select the divider of input clock source.

adc16_resolution_t resolution: Select the sample resolution mode.

adc16_long_sample_mode_t longSampleMode: Select the long sample mode.

bool enableHighSpeed: Enable the high-speed mode.

bool enableLowPower: Enable low power.

bool enableContinuousConversion: Enable continuous conversion mode.

adc16_hardware_average_mode_t hardwareAverageMode: Set hardware average mode.

struct _adc16_hardware_compare_config

#include <fsl_adc16.h>

ADC16 Hardware comparison configuration.

Public Members

adc16_hardware_compare_mode_t hardwareCompareMode: Select the hardware compare mode. See “adc16_hardware_compare_mode_t”.

int16_t value1: Setting value1 for hardware compare mode.

int16_t value2: Setting value2 for hardware compare mode.

struct _adc16_channel_config

#include <fsl_adc16.h>

ADC16 channel conversion configuration.

Public Members

uint32_t channelNumber: Setting the conversion channel number. The available range is 0-31. See channel connection information for each chip in Reference Manual document.

bool enableInterruptOnConversionCompleted: Generate an interrupt request once the conversion is completed.

bool enableDifferentialConversion: Using Differential sample mode.

struct _adc16_pga_config

#include <fsl_adc16.h>

ADC16 programmable gain amplifier configuration.

Public Members

adc16_pga_gain_t pgaGain: Setting PGA gain.

bool enableRunInNormalMode: Enable PGA working in normal mode, or low power mode by default.

bool disablePgaChopping: Disable the PGA chopping function. The PGA employs chopping to remove/reduce offset and 1/f noise and offers an offset measurement configuration that aids the offset calibration.

bool enableRunInOffsetMeasurement: Enable the PGA working in offset measurement mode. When this feature is enabled, the PGA disconnects itself from the external inputs and auto-configures into offset measurement mode. With this field set, run the ADC in the recommended settings and enable the maximum hardware averaging to get the PGA offset number. The output is the (PGA offset * (64+1)) for the given PGA setting.

Clock Driver

enum _clock_name

Clock name used to get clock frequency.

Values:

enumerator kCLOCK_CoreSysClk: Core/system clock

enumerator kCLOCK_PlatClk: Platform clock

enumerator kCLOCK_BusClk: Bus clock

enumerator kCLOCK_FlexBusClk: FlexBus clock

enumerator kCLOCK_FlashClk: Flash clock

enumerator kCLOCK_FastPeriphClk: Fast peripheral clock

enumerator kCLOCK_PllFllSelClk: The clock after SIM[PLLFLLSEL].

enumerator kCLOCK_Er32kClk: External reference 32K clock (ERCLK32K)

enumerator kCLOCK_Osc0ErClk: OSC0 external reference clock (OSC0ERCLK)

enumerator kCLOCK_Osc1ErClk: OSC1 external reference clock (OSC1ERCLK)

enumerator kCLOCK_Osc0ErClkUndiv: OSC0 external reference undivided clock(OSC0ERCLK_UNDIV).

enumerator kCLOCK_McgFixedFreqClk: MCG fixed frequency clock (MCGFFCLK)

enumerator kCLOCK_McgInternalRefClk: MCG internal reference clock (MCGIRCLK)

enumerator kCLOCK_McgFllClk: MCGFLLCLK

enumerator kCLOCK_McgPll0Clk: MCGPLL0CLK

enumerator kCLOCK_McgPll1Clk: MCGPLL1CLK

enumerator kCLOCK_McgExtPllClk: EXT_PLLCLK

enumerator kCLOCK_McgPeriphClk: MCG peripheral clock (MCGPCLK)

enumerator kCLOCK_McgIrc48MClk: MCG IRC48M clock

enumerator kCLOCK_LpoClk: LPO clock

enum _clock_usb_src

USB clock source definition.

Values:

enumerator kCLOCK_UsbSrcIrc48M: Use IRC48M.

enumerator kCLOCK_UsbSrcExt: Use USB_CLKIN.

enum _clock_ip_name

Clock gate name used for CLOCK_EnableClock/CLOCK_DisableClock.

Values:

enumerator kCLOCK_IpInvalid

enumerator kCLOCK_I2c0

enumerator kCLOCK_I2c1

enumerator kCLOCK_Uart2

enumerator kCLOCK_Usbfs0

enumerator kCLOCK_Cmp0

enumerator kCLOCK_Vref0

enumerator kCLOCK_Spi0

enumerator kCLOCK_Spi1

enumerator kCLOCK_Lptmr0

enumerator kCLOCK_PortA

enumerator kCLOCK_PortB

enumerator kCLOCK_PortC

enumerator kCLOCK_PortD

enumerator kCLOCK_PortE

enumerator kCLOCK_Slcd0

enumerator kCLOCK_Lpuart0

enumerator kCLOCK_Lpuart1

enumerator kCLOCK_Flexio0

enumerator kCLOCK_Ftf0

enumerator kCLOCK_Dmamux0

enumerator kCLOCK_Sai0

enumerator kCLOCK_Pit0

enumerator kCLOCK_Tpm0

enumerator kCLOCK_Tpm1

enumerator kCLOCK_Tpm2

enumerator kCLOCK_Adc0

enumerator kCLOCK_Rtc0

enumerator kCLOCK_Dac0

enumerator kCLOCK_Dma0

enum _osc_cap_load

Oscillator capacitor load setting.

Values:

enumerator kOSC_Cap2P: 2 pF capacitor load

enumerator kOSC_Cap4P: 4 pF capacitor load

enumerator kOSC_Cap8P: 8 pF capacitor load

enumerator kOSC_Cap16P: 16 pF capacitor load

enum _oscer_enable_mode

OSCERCLK enable mode.

Values:

enumerator kOSC_ErClkEnable: Enable.

enumerator kOSC_ErClkEnableInStop: Enable in stop mode.

enum _osc_mode

The OSC work mode.

Values:

enumerator kOSC_ModeExt: Use external clock.

enumerator kOSC_ModeOscLowPower: Oscillator low power.

enumerator kOSC_ModeOscHighGain: Oscillator high gain.

enum _mcglite_clkout_src

MCG_Lite clock source selection.

Values:

enumerator kMCGLITE_ClkSrcHirc: MCGOUTCLK source is HIRC

enumerator kMCGLITE_ClkSrcLirc: MCGOUTCLK source is LIRC

enumerator kMCGLITE_ClkSrcExt: MCGOUTCLK source is external clock source

enumerator kMCGLITE_ClkSrcReserved

enum _mcglite_lirc_mode

MCG_Lite LIRC select.

Values:

enumerator kMCGLITE_Lirc2M: Slow internal reference(LIRC) 2 MHz clock selected

enumerator kMCGLITE_Lirc8M: Slow internal reference(LIRC) 8 MHz clock selected

enum _mcglite_lirc_div

MCG_Lite divider factor selection for clock source.

Values:

enumerator kMCGLITE_LircDivBy1: Divider is 1

enumerator kMCGLITE_LircDivBy2: Divider is 2

enumerator kMCGLITE_LircDivBy4: Divider is 4

enumerator kMCGLITE_LircDivBy8: Divider is 8

enumerator kMCGLITE_LircDivBy16: Divider is 16

enumerator kMCGLITE_LircDivBy32: Divider is 32

enumerator kMCGLITE_LircDivBy64: Divider is 64

enumerator kMCGLITE_LircDivBy128: Divider is 128

enum _mcglite_mode

MCG_Lite clock mode definitions.

Values:

enumerator kMCGLITE_ModeHirc48M: Clock mode is HIRC 48 M

enumerator kMCGLITE_ModeLirc8M: Clock mode is LIRC 8 M

enumerator kMCGLITE_ModeLirc2M: Clock mode is LIRC 2 M

enumerator kMCGLITE_ModeExt: Clock mode is EXT

enumerator kMCGLITE_ModeError: Unknown mode

enum _mcglite_irclk_enable_mode

MCG internal reference clock (MCGIRCLK) enable mode definition.

Values:

enumerator kMCGLITE_IrclkEnable: MCGIRCLK enable.

enumerator kMCGLITE_IrclkEnableInStop: MCGIRCLK enable in stop mode.

typedef enum _clock_name clock_name_t: Clock name used to get clock frequency.

typedef enum _clock_usb_src clock_usb_src_t: USB clock source definition.

typedef enum _clock_ip_name clock_ip_name_t: Clock gate name used for CLOCK_EnableClock/CLOCK_DisableClock.

typedef struct _sim_clock_config sim_clock_config_t: SIM configuration structure for clock setting.

typedef struct _oscer_config oscer_config_t: The OSC configuration for OSCERCLK.

typedef enum _osc_mode osc_mode_t: The OSC work mode.

typedef struct _osc_config osc_config_t

OSC Initialization Configuration Structure.

Defines the configuration data structure to initialize the OSC. When porting to a new board, set the following members according to the board settings:

freq: The external frequency.
workMode: The OSC module mode.

typedef enum _mcglite_clkout_src mcglite_clkout_src_t: MCG_Lite clock source selection.

typedef enum _mcglite_lirc_mode mcglite_lirc_mode_t: MCG_Lite LIRC select.

typedef enum _mcglite_lirc_div mcglite_lirc_div_t: MCG_Lite divider factor selection for clock source.

typedef enum _mcglite_mode mcglite_mode_t: MCG_Lite clock mode definitions.

typedef struct _mcglite_config mcglite_config_t: MCG_Lite configure structure for mode change.

volatile uint32_t g_xtal0Freq

External XTAL0 (OSC0) clock frequency.

The XTAL0/EXTAL0 (OSC0) clock frequency in Hz. When the clock is set up, use the function CLOCK_SetXtal0Freq to set the value in the clock driver. For example, if XTAL0 is 8 MHz:

CLOCK_InitOsc0(...);
CLOCK_SetXtal0Freq(80000000);

This is important for the multicore platforms where one core needs to set up the OSC0 using the CLOCK_InitOsc0. All other cores need to call the CLOCK_SetXtal0Freq to get a valid clock frequency.

volatile uint32_t g_xtal32Freq

The external XTAL32/EXTAL32/RTC_CLKIN clock frequency.

The XTAL32/EXTAL32/RTC_CLKIN clock frequency in Hz. When the clock is set up, use the function CLOCK_SetXtal32Freq to set the value in the clock driver.

This is important for the multicore platforms where one core needs to set up the clock. All other cores need to call the CLOCK_SetXtal32Freq to get a valid clock frequency.

static inline void CLOCK_EnableClock(clock_ip_name_t name)

Enable the clock for specific IP.

Parameters:

name – Which clock to enable, see clock_ip_name_t.

static inline void CLOCK_DisableClock(clock_ip_name_t name)

Disable the clock for specific IP.

Parameters:

name – Which clock to disable, see clock_ip_name_t.

static inline void CLOCK_SetEr32kClock(uint32_t src)

Set ERCLK32K source.

Parameters:

src – The value to set ERCLK32K clock source.

static inline void CLOCK_SetLpuart0Clock(uint32_t src)

Set LPUART0 clock source.

Parameters:

src – The value to set LPUART0 clock source.

static inline void CLOCK_SetLpuart1Clock(uint32_t src)

Set LPUART1 clock source.

Parameters:

src – The value to set LPUART1 clock source.

static inline void CLOCK_SetTpmClock(uint32_t src)

Set TPM clock source.

Parameters:

src – The value to set TPM clock source.

static inline void CLOCK_SetFlexio0Clock(uint32_t src)

Set FLEXIO clock source.

Parameters:

src – The value to set FLEXIO clock source.

bool CLOCK_EnableUsbfs0Clock(clock_usb_src_t src, uint32_t freq)

Enable USB FS clock.

Parameters:

src – USB FS clock source.
freq – The frequency specified by src.

Return values:

true – The clock is set successfully.
false – The clock source is invalid to get proper USB FS clock.

static inline void CLOCK_DisableUsbfs0Clock(void)

Disable USB FS clock.

static inline void CLOCK_SetClkOutClock(uint32_t src)

Set CLKOUT source.

Parameters:

src – The value to set CLKOUT source.

static inline void CLOCK_SetRtcClkOutClock(uint32_t src)

Set RTC_CLKOUT source.

Parameters:

src – The value to set RTC_CLKOUT source.

static inline void CLOCK_SetOutDiv(uint32_t outdiv1, uint32_t outdiv4)

System clock divider.

Set the SIM_CLKDIV1[OUTDIV1], SIM_CLKDIV1[OUTDIV4].

Parameters:

outdiv1 – Clock 1 output divider value.
outdiv4 – Clock 4 output divider value.

uint32_t CLOCK_GetFreq(clock_name_t clockName)

Gets the clock frequency for a specific clock name.

This function checks the current clock configurations and then calculates the clock frequency for a specific clock name defined in clock_name_t. The MCG must be properly configured before using this function.

Parameters:

clockName – Clock names defined in clock_name_t

Returns:

Clock frequency value in Hertz

uint32_t CLOCK_GetCoreSysClkFreq(void)

Get the core clock or system clock frequency.

Returns:: Clock frequency in Hz.

uint32_t CLOCK_GetPlatClkFreq(void)

Get the platform clock frequency.

Returns:: Clock frequency in Hz.

uint32_t CLOCK_GetBusClkFreq(void)

Get the bus clock frequency.

Returns:: Clock frequency in Hz.

uint32_t CLOCK_GetFlashClkFreq(void)

Get the flash clock frequency.

Returns:: Clock frequency in Hz.

uint32_t CLOCK_GetEr32kClkFreq(void)

Get the external reference 32K clock frequency (ERCLK32K).

Returns:: Clock frequency in Hz.

uint32_t CLOCK_GetOsc0ErClkFreq(void)

Get the OSC0 external reference clock frequency (OSC0ERCLK).

Returns:: Clock frequency in Hz.

void CLOCK_SetSimConfig(sim_clock_config_t const *config)

Set the clock configure in SIM module.

This function sets system layer clock settings in SIM module.

Parameters:

config – Pointer to the configure structure.

static inline void CLOCK_SetSimSafeDivs(void)

Set the system clock dividers in SIM to safe value.

The system level clocks (core clock, bus clock, flexbus clock and flash clock) must be in allowed ranges. During MCG clock mode switch, the MCG output clock changes then the system level clocks may be out of range. This function could be used before MCG mode change, to make sure system level clocks are in allowed range.

FSL_CLOCK_DRIVER_VERSION: CLOCK driver version 2.3.1.

SDK_DEVICE_MAXIMUM_CPU_CLOCK_FREQUENCY

DMAMUX_CLOCKS: Clock ip name array for DMAMUX.

RTC_CLOCKS: Clock ip name array for RTC.

SAI_CLOCKS: Clock ip name array for SAI.

SPI_CLOCKS: Clock ip name array for SPI.

SLCD_CLOCKS: Clock ip name array for SLCD.

PIT_CLOCKS: Clock ip name array for PIT.

PORT_CLOCKS: Clock ip name array for PORT.

LPUART_CLOCKS: Clock ip name array for LPUART.

DAC_CLOCKS: Clock ip name array for DAC.

LPTMR_CLOCKS: Clock ip name array for LPTMR.

ADC16_CLOCKS: Clock ip name array for ADC16.

FLEXIO_CLOCKS: Clock ip name array for FLEXIO.

VREF_CLOCKS: Clock ip name array for VREF.

DMA_CLOCKS: Clock ip name array for DMA.

UART_CLOCKS: Clock ip name array for UART.

TPM_CLOCKS: Clock ip name array for TPM.

I2C_CLOCKS: Clock ip name array for I2C.

FTF_CLOCKS: Clock ip name array for FTF.

CMP_CLOCKS: Clock ip name array for CMP.

LPO_CLK_FREQ: LPO clock frequency.

SYS_CLK: Peripherals clock source definition.

BUS_CLK

I2C0_CLK_SRC

I2C1_CLK_SRC

SPI0_CLK_SRC

SPI1_CLK_SRC

UART2_CLK_SRC

CLK_GATE_REG_OFFSET_SHIFT

CLK_GATE_REG_OFFSET_MASK

CLK_GATE_BIT_SHIFT_SHIFT

CLK_GATE_BIT_SHIFT_MASK

CLK_GATE_DEFINE(reg_offset, bit_shift)

CLK_GATE_ABSTRACT_REG_OFFSET(x)

CLK_GATE_ABSTRACT_BITS_SHIFT(x)

uint32_t CLOCK_GetOutClkFreq(void)

Gets the MCG_Lite output clock (MCGOUTCLK) frequency.

This function gets the MCG_Lite output clock frequency in Hz based on the current MCG_Lite register value.

Returns:: The frequency of MCGOUTCLK.

uint32_t CLOCK_GetInternalRefClkFreq(void)

Gets the MCG internal reference clock (MCGIRCLK) frequency.

This function gets the MCG_Lite internal reference clock frequency in Hz based on the current MCG register value.

Returns:: The frequency of MCGIRCLK.

uint32_t CLOCK_GetPeriphClkFreq(void)

Gets the current MCGPCLK frequency.

This function gets the MCGPCLK frequency in Hz based on the current MCG_Lite register settings.

Returns:: The frequency of MCGPCLK.

mcglite_mode_t CLOCK_GetMode(void)

Gets the current MCG_Lite mode.

This function checks the MCG_Lite registers and determines the current MCG_Lite mode.

Returns:: The current MCG_Lite mode or error code.

status_t CLOCK_SetMcgliteConfig(mcglite_config_t const *targetConfig)

Sets the MCG_Lite configuration.

This function configures the MCG_Lite, includes the output clock source, MCGIRCLK settings, HIRC settings, and so on. See mcglite_config_t for details.

Parameters:

targetConfig – Pointer to the target MCG_Lite mode configuration structure.

Returns:

Error code.

static inline void OSC_SetExtRefClkConfig(OSC_Type *base, oscer_config_t const *config)

Configures the OSC external reference clock (OSCERCLK).

This function configures the OSC external reference clock (OSCERCLK). This is an example to enable the OSCERCLK in normal mode and stop mode, and set the output divider to 1.

oscer_config_t config =
{
    .enableMode = kOSC_ErClkEnable | kOSC_ErClkEnableInStop,
    .erclkDiv   = 1U,
};

OSC_SetExtRefClkConfig(OSC, &config);

Parameters:

base – OSC peripheral address.
config – Pointer to the configuration structure.

static inline void OSC_SetCapLoad(OSC_Type *base, uint8_t capLoad)

Sets the capacitor load configuration for the oscillator.

This function sets the specified capacitor configuration for the oscillator. This should be done in the early system level initialization function call based on the system configuration.

Example:

OSC_SetCapLoad(OSC, kOSC_Cap2P | kOSC_Cap8P);

Parameters:

base – OSC peripheral address.
capLoad – OR’ed value for the capacitor load option.See _osc_cap_load.

void CLOCK_InitOsc0(osc_config_t const *config)

Initializes the OSC0.

This function initializes the OSC0 according to the board configuration.

Parameters:

config – Pointer to the OSC0 configuration structure.

void CLOCK_DeinitOsc0(void)

Deinitializes the OSC0.

This function deinitializes the OSC0.

static inline void CLOCK_SetXtal0Freq(uint32_t freq)

Sets the XTAL0 frequency based on board settings.

Parameters:

freq – The XTAL0/EXTAL0 input clock frequency in Hz.

static inline void CLOCK_SetXtal32Freq(uint32_t freq)

Sets the XTAL32/RTC_CLKIN frequency based on board settings.

Parameters:

freq – The XTAL32/EXTAL32/RTC_CLKIN input clock frequency in Hz.

uint8_t er32kSrc: ERCLK32K source selection.

uint32_t clkdiv1: SIM_CLKDIV1.

uint8_t enableMode: OSCERCLK enable mode. OR’ed value of _oscer_enable_mode.

uint32_t freq: External clock frequency.

uint8_t capLoad: Capacitor load setting.

osc_mode_t workMode: OSC work mode setting.

oscer_config_t oscerConfig: Configuration for OSCERCLK.

mcglite_clkout_src_t outSrc: MCGOUT clock select.

uint8_t irclkEnableMode: MCGIRCLK enable mode, OR’ed value of _mcglite_irclk_enable_mode.

mcglite_lirc_mode_t ircs: MCG_C2[IRCS].

mcglite_lirc_div_t fcrdiv: MCG_SC[FCRDIV].

mcglite_lirc_div_t lircDiv2: MCG_MC[LIRC_DIV2].

bool hircEnableInNotHircMode: HIRC enable when not in HIRC mode.

FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL

Configure whether driver controls clock.

When set to 0, peripheral drivers will enable clock in initialize function and disable clock in de-initialize function. When set to 1, peripheral driver will not control the clock, application could control the clock out of the driver.

Note

All drivers share this feature switcher. If it is set to 1, application should handle clock enable and disable for all drivers.

struct _sim_clock_config: #include <fsl_clock.h>

SIM configuration structure for clock setting.

struct _oscer_config: #include <fsl_clock.h>

The OSC configuration for OSCERCLK.

struct _osc_config

#include <fsl_clock.h>

OSC Initialization Configuration Structure.

Defines the configuration data structure to initialize the OSC. When porting to a new board, set the following members according to the board settings:

freq: The external frequency.
workMode: The OSC module mode.

struct _mcglite_config: #include <fsl_clock.h>

MCG_Lite configure structure for mode change.

CMP: Analog Comparator Driver

void CMP_Init(CMP_Type *base, const cmp_config_t *config)

Initializes the CMP.

This function initializes the CMP module. The operations included are as follows.

Enabling the clock for CMP module.
Configuring the comparator.
Enabling the CMP module. Note that for some devices, multiple CMP instances share the same clock gate. In this case, to enable the clock for any instance enables all CMPs. See the appropriate MCU reference manual for the clock assignment of the CMP.

Parameters:

base – CMP peripheral base address.
config – Pointer to the configuration structure.

void CMP_Deinit(CMP_Type *base)

De-initializes the CMP module.

This function de-initializes the CMP module. The operations included are as follows.

Disabling the CMP module.
Disabling the clock for CMP module.

This function disables the clock for the CMP. Note that for some devices, multiple CMP instances share the same clock gate. In this case, before disabling the clock for the CMP, ensure that all the CMP instances are not used.

Parameters:

base – CMP peripheral base address.

static inline void CMP_Enable(CMP_Type *base, bool enable)

Enables/disables the CMP module.

Parameters:

base – CMP peripheral base address.
enable – Enables or disables the module.

void CMP_GetDefaultConfig(cmp_config_t *config)

Initializes the CMP user configuration structure.

This function initializes the user configuration structure to these default values.

config->enableCmp           = true;
config->hysteresisMode      = kCMP_HysteresisLevel0;
config->enableHighSpeed     = false;
config->enableInvertOutput  = false;
config->useUnfilteredOutput = false;
config->enablePinOut        = false;
config->enableTriggerMode   = false;

Parameters:

config – Pointer to the configuration structure.

void CMP_SetInputChannels(CMP_Type *base, uint8_t positiveChannel, uint8_t negativeChannel)

Sets the input channels for the comparator.

This function sets the input channels for the comparator. Note that two input channels cannot be set the same way in the application. When the user selects the same input from the analog mux to the positive and negative port, the comparator is disabled automatically.

Parameters:

base – CMP peripheral base address.
positiveChannel – Positive side input channel number. Available range is 0-7.
negativeChannel – Negative side input channel number. Available range is 0-7.

void CMP_EnableDMA(CMP_Type *base, bool enable)

Enables/disables the DMA request for rising/falling events.

This function enables/disables the DMA request for rising/falling events. Either event triggers the generation of the DMA request from CMP if the DMA feature is enabled. Both events are ignored for generating the DMA request from the CMP if the DMA is disabled.

Parameters:

base – CMP peripheral base address.
enable – Enables or disables the feature.

static inline void CMP_EnableWindowMode(CMP_Type *base, bool enable)

Enables/disables the window mode.

Parameters:

base – CMP peripheral base address.
enable – Enables or disables the feature.

static inline void CMP_EnablePassThroughMode(CMP_Type *base, bool enable)

Enables/disables the pass through mode.

Parameters:

base – CMP peripheral base address.
enable – Enables or disables the feature.

void CMP_SetFilterConfig(CMP_Type *base, const cmp_filter_config_t *config)

Configures the filter.

Parameters:

base – CMP peripheral base address.
config – Pointer to the configuration structure.

void CMP_SetDACConfig(CMP_Type *base, const cmp_dac_config_t *config)

Configures the internal DAC.

Parameters:

base – CMP peripheral base address.
config – Pointer to the configuration structure. “NULL” disables the feature.

void CMP_EnableInterrupts(CMP_Type *base, uint32_t mask)

Enables the interrupts.

Parameters:

base – CMP peripheral base address.
mask – Mask value for interrupts. See “_cmp_interrupt_enable”.

void CMP_DisableInterrupts(CMP_Type *base, uint32_t mask)

Disables the interrupts.

Parameters:

base – CMP peripheral base address.
mask – Mask value for interrupts. See “_cmp_interrupt_enable”.

uint32_t CMP_GetStatusFlags(CMP_Type *base)

Gets the status flags.

Parameters:

base – CMP peripheral base address.

Returns:

Mask value for the asserted flags. See “_cmp_status_flags”.

void CMP_ClearStatusFlags(CMP_Type *base, uint32_t mask)

Clears the status flags.

Parameters:

base – CMP peripheral base address.
mask – Mask value for the flags. See “_cmp_status_flags”.

FSL_CMP_DRIVER_VERSION: CMP driver version 2.0.3.

enum _cmp_interrupt_enable

Interrupt enable/disable mask.

Values:

enumerator kCMP_OutputRisingInterruptEnable: Comparator interrupt enable rising.

enumerator kCMP_OutputFallingInterruptEnable: Comparator interrupt enable falling.

enum _cmp_status_flags

Status flags’ mask.

Values:

enumerator kCMP_OutputRisingEventFlag: Rising-edge on the comparison output has occurred.

enumerator kCMP_OutputFallingEventFlag: Falling-edge on the comparison output has occurred.

enumerator kCMP_OutputAssertEventFlag: Return the current value of the analog comparator output.

enum _cmp_hysteresis_mode

CMP Hysteresis mode.

Values:

enumerator kCMP_HysteresisLevel0: Hysteresis level 0.

enumerator kCMP_HysteresisLevel1: Hysteresis level 1.

enumerator kCMP_HysteresisLevel2: Hysteresis level 2.

enumerator kCMP_HysteresisLevel3: Hysteresis level 3.

enum _cmp_reference_voltage_source

CMP Voltage Reference source.

Values:

enumerator kCMP_VrefSourceVin1: Vin1 is selected as a resistor ladder network supply reference Vin.

enumerator kCMP_VrefSourceVin2: Vin2 is selected as a resistor ladder network supply reference Vin.

typedef enum _cmp_hysteresis_mode cmp_hysteresis_mode_t: CMP Hysteresis mode.

typedef enum _cmp_reference_voltage_source cmp_reference_voltage_source_t: CMP Voltage Reference source.

typedef struct _cmp_config cmp_config_t: Configures the comparator.

typedef struct _cmp_filter_config cmp_filter_config_t: Configures the filter.

typedef struct _cmp_dac_config cmp_dac_config_t: Configures the internal DAC.

struct _cmp_config

#include <fsl_cmp.h>

Configures the comparator.

Public Members

bool enableCmp: Enable the CMP module.

cmp_hysteresis_mode_t hysteresisMode: CMP Hysteresis mode.

bool enableHighSpeed: Enable High-speed (HS) comparison mode.

bool enableInvertOutput: Enable the inverted comparator output.

bool useUnfilteredOutput: Set the compare output(COUT) to equal COUTA(true) or COUT(false).

bool enablePinOut: The comparator output is available on the associated pin.

bool enableTriggerMode: Enable the trigger mode.

struct _cmp_filter_config

#include <fsl_cmp.h>

Configures the filter.

Public Members

bool enableSample: Using the external SAMPLE as a sampling clock input or using a divided bus clock.

uint8_t filterCount: Filter Sample Count. Available range is 1-7; 0 disables the filter.

uint8_t filterPeriod: Filter Sample Period. The divider to the bus clock. Available range is 0-255.

struct _cmp_dac_config

#include <fsl_cmp.h>

Configures the internal DAC.

Public Members

cmp_reference_voltage_source_t referenceVoltageSource: Supply voltage reference source.

uint8_t DACValue: Value for the DAC Output Voltage. Available range is 0-63.

COP: Watchdog Driver

void COP_GetDefaultConfig(cop_config_t *config)

Initializes the COP configuration structure.

This function initializes the COP configuration structure to default values. The default values are:

copConfig->enableWindowMode = false;
copConfig->timeoutMode = kCOP_LongTimeoutMode;
copConfig->enableStop = false;
copConfig->enableDebug = false;
copConfig->clockSource = kCOP_LpoClock;
copConfig->timeoutCycles = kCOP_2Power10CyclesOr2Power18Cycles;

DAC: Digital-to-Analog Converter Driver

void DAC_Init(DAC_Type *base, const dac_config_t *config)

Initializes the DAC module.

This function initializes the DAC module including the following operations.

Enabling the clock for DAC module.
Configuring the DAC converter with a user configuration.
Enabling the DAC module.

Parameters:

base – DAC peripheral base address.
config – Pointer to the configuration structure. See “dac_config_t”.

void DAC_Deinit(DAC_Type *base)

De-initializes the DAC module.

This function de-initializes the DAC module including the following operations.

Disabling the DAC module.
Disabling the clock for the DAC module.

Parameters:

base – DAC peripheral base address.

void DAC_GetDefaultConfig(dac_config_t *config)

Initializes the DAC user configuration structure.

This function initializes the user configuration structure to a default value. The default values are as follows.

config->referenceVoltageSource = kDAC_ReferenceVoltageSourceVref2;
config->enableLowPowerMode = false;

Parameters:

config – Pointer to the configuration structure. See “dac_config_t”.

static inline void DAC_Enable(DAC_Type *base, bool enable)

Enables the DAC module.

Parameters:

base – DAC peripheral base address.
enable – Enables or disables the feature.

static inline void DAC_EnableBuffer(DAC_Type *base, bool enable)

Enables the DAC buffer.

Parameters:

base – DAC peripheral base address.
enable – Enables or disables the feature.

void DAC_SetBufferConfig(DAC_Type *base, const dac_buffer_config_t *config)

Configures the CMP buffer.

Parameters:

base – DAC peripheral base address.
config – Pointer to the configuration structure. See “dac_buffer_config_t”.

void DAC_GetDefaultBufferConfig(dac_buffer_config_t *config)

Initializes the DAC buffer configuration structure.

This function initializes the DAC buffer configuration structure to default values. The default values are as follows.

config->triggerMode = kDAC_BufferTriggerBySoftwareMode;
config->watermark   = kDAC_BufferWatermark1Word;
config->workMode    = kDAC_BufferWorkAsNormalMode;
config->upperLimit  = DAC_DATL_COUNT - 1U;

Parameters:

config – Pointer to the configuration structure. See “dac_buffer_config_t”.

static inline void DAC_EnableBufferDMA(DAC_Type *base, bool enable)

Enables the DMA for DAC buffer.

Parameters:

base – DAC peripheral base address.
enable – Enables or disables the feature.

void DAC_SetBufferValue(DAC_Type *base, uint8_t index, uint16_t value)

Sets the value for items in the buffer.

Parameters:

base – DAC peripheral base address.
index – Setting the index for items in the buffer. The available index should not exceed the size of the DAC buffer.
value – Setting the value for items in the buffer. 12-bits are available.

static inline void DAC_DoSoftwareTriggerBuffer(DAC_Type *base)

Triggers the buffer using software and updates the read pointer of the DAC buffer.

This function triggers the function using software. The read pointer of the DAC buffer is updated with one step after this function is called. Changing the read pointer depends on the buffer’s work mode.

Parameters:

base – DAC peripheral base address.

static inline uint8_t DAC_GetBufferReadPointer(DAC_Type *base)

Gets the current read pointer of the DAC buffer.

This function gets the current read pointer of the DAC buffer. The current output value depends on the item indexed by the read pointer. It is updated either by a software trigger or a hardware trigger.

Parameters:

base – DAC peripheral base address.

Returns:

The current read pointer of the DAC buffer.

void DAC_SetBufferReadPointer(DAC_Type *base, uint8_t index)

Sets the current read pointer of the DAC buffer.

This function sets the current read pointer of the DAC buffer. The current output value depends on the item indexed by the read pointer. It is updated either by a software trigger or a hardware trigger. After the read pointer changes, the DAC output value also changes.

Parameters:

base – DAC peripheral base address.
index – Setting an index value for the pointer.

void DAC_EnableBufferInterrupts(DAC_Type *base, uint32_t mask)

Enables interrupts for the DAC buffer.

Parameters:

base – DAC peripheral base address.
mask – Mask value for interrupts. See “_dac_buffer_interrupt_enable”.

void DAC_DisableBufferInterrupts(DAC_Type *base, uint32_t mask)

Disables interrupts for the DAC buffer.

Parameters:

base – DAC peripheral base address.
mask – Mask value for interrupts. See “_dac_buffer_interrupt_enable”.

uint8_t DAC_GetBufferStatusFlags(DAC_Type *base)

Gets the flags of events for the DAC buffer.

Parameters:

base – DAC peripheral base address.

Returns:

Mask value for the asserted flags. See “_dac_buffer_status_flags”.

void DAC_ClearBufferStatusFlags(DAC_Type *base, uint32_t mask)

Clears the flags of events for the DAC buffer.

Parameters:

base – DAC peripheral base address.
mask – Mask value for flags. See “_dac_buffer_status_flags_t”.

FSL_DAC_DRIVER_VERSION: DAC driver version 2.0.2.

enum _dac_buffer_status_flags

DAC buffer flags.

Values:

enumerator kDAC_BufferWatermarkFlag: DAC Buffer Watermark Flag.

enumerator kDAC_BufferReadPointerTopPositionFlag: DAC Buffer Read Pointer Top Position Flag.

enumerator kDAC_BufferReadPointerBottomPositionFlag: DAC Buffer Read Pointer Bottom Position Flag.

enum _dac_buffer_interrupt_enable

DAC buffer interrupts.

Values:

enumerator kDAC_BufferWatermarkInterruptEnable: DAC Buffer Watermark Interrupt Enable.

enumerator kDAC_BufferReadPointerTopInterruptEnable: DAC Buffer Read Pointer Top Flag Interrupt Enable.

enumerator kDAC_BufferReadPointerBottomInterruptEnable: DAC Buffer Read Pointer Bottom Flag Interrupt Enable

enum _dac_reference_voltage_source

DAC reference voltage source.

Values:

enumerator kDAC_ReferenceVoltageSourceVref1: The DAC selects DACREF_1 as the reference voltage.

enumerator kDAC_ReferenceVoltageSourceVref2: The DAC selects DACREF_2 as the reference voltage.

enum _dac_buffer_trigger_mode

DAC buffer trigger mode.

Values:

enumerator kDAC_BufferTriggerByHardwareMode: The DAC hardware trigger is selected.

enumerator kDAC_BufferTriggerBySoftwareMode: The DAC software trigger is selected.

enum _dac_buffer_watermark

DAC buffer watermark.

Values:

enumerator kDAC_BufferWatermark1Word: 1 word away from the upper limit.

enumerator kDAC_BufferWatermark2Word: 2 words away from the upper limit.

enumerator kDAC_BufferWatermark3Word: 3 words away from the upper limit.

enumerator kDAC_BufferWatermark4Word: 4 words away from the upper limit.

enum _dac_buffer_work_mode

DAC buffer work mode.

Values:

enumerator kDAC_BufferWorkAsNormalMode: Normal mode.

enumerator kDAC_BufferWorkAsSwingMode: Swing mode.

enumerator kDAC_BufferWorkAsOneTimeScanMode: One-Time Scan mode.

enumerator kDAC_BufferWorkAsFIFOMode: FIFO mode.

typedef enum _dac_reference_voltage_source dac_reference_voltage_source_t: DAC reference voltage source.

typedef enum _dac_buffer_trigger_mode dac_buffer_trigger_mode_t: DAC buffer trigger mode.

typedef enum _dac_buffer_watermark dac_buffer_watermark_t: DAC buffer watermark.

typedef enum _dac_buffer_work_mode dac_buffer_work_mode_t: DAC buffer work mode.

typedef struct _dac_config dac_config_t: DAC module configuration.

typedef struct _dac_buffer_config dac_buffer_config_t: DAC buffer configuration.

struct _dac_config

#include <fsl_dac.h>

DAC module configuration.

Public Members

dac_reference_voltage_source_t referenceVoltageSource: Select the DAC reference voltage source.

bool enableLowPowerMode: Enable the low-power mode.

struct _dac_buffer_config

#include <fsl_dac.h>

DAC buffer configuration.

Public Members

dac_buffer_trigger_mode_t triggerMode: Select the buffer’s trigger mode.

dac_buffer_watermark_t watermark: Select the buffer’s watermark.

dac_buffer_work_mode_t workMode: Select the buffer’s work mode.

uint8_t upperLimit: Set the upper limit for the buffer index. Normally, 0-15 is available for a buffer with 16 items.

DMA: Direct Memory Access Controller Driver

void DMA_Init(DMA_Type *base)

Initializes the DMA peripheral.

This function ungates the DMA clock.

Parameters:

base – DMA peripheral base address.

void DMA_Deinit(DMA_Type *base)

Deinitializes the DMA peripheral.

This function gates the DMA clock.

Parameters:

base – DMA peripheral base address.

void DMA_ResetChannel(DMA_Type *base, uint32_t channel)

Resets the DMA channel.

Sets all register values to reset values and enables the cycle steal and auto stop channel request features.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.

void DMA_SetTransferConfig(DMA_Type *base, uint32_t channel, const dma_transfer_config_t *config)

Configures the DMA transfer attribute.

This function configures the transfer attribute including the source address, destination address, transfer size, and so on. This example shows how to set up the dma_transfer_config_t parameters and how to call the DMA_ConfigBasicTransfer function.

dma_transfer_config_t transferConfig;
memset(&transferConfig, 0, sizeof(transferConfig));
transferConfig.srcAddr = (uint32_t)srcAddr;
transferConfig.destAddr = (uint32_t)destAddr;
transferConfig.enbaleSrcIncrement = true;
transferConfig.enableDestIncrement = true;
transferConfig.srcSize = kDMA_Transfersize32bits;
transferConfig.destSize = kDMA_Transfersize32bits;
transferConfig.transferSize = sizeof(uint32_t) * BUFF_LENGTH;
DMA_SetTransferConfig(DMA0, 0, &transferConfig);

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
config – Pointer to the DMA transfer configuration structure.

void DMA_SetChannelLinkConfig(DMA_Type *base, uint32_t channel, const dma_channel_link_config_t *config)

Configures the DMA channel link feature.

This function allows DMA channels to have their transfers linked. The current DMA channel triggers a DMA request to the linked channels (LCH1 or LCH2) depending on the channel link type. Perform a link to channel LCH1 after each cycle-steal transfer followed by a link to LCH2 after the BCR decrements to 0 if the type is kDMA_ChannelLinkChannel1AndChannel2. Perform a link to LCH1 after each cycle-steal transfer if the type is kDMA_ChannelLinkChannel1. Perform a link to LCH1 after the BCR decrements to 0 if the type is kDMA_ChannelLinkChannel1AfterBCR0.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
config – Pointer to the channel link configuration structure.

static inline void DMA_SetSourceAddress(DMA_Type *base, uint32_t channel, uint32_t srcAddr)

Sets the DMA source address for the DMA transfer.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
srcAddr – DMA source address.

static inline void DMA_SetDestinationAddress(DMA_Type *base, uint32_t channel, uint32_t destAddr)

Sets the DMA destination address for the DMA transfer.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
destAddr – DMA destination address.

static inline void DMA_SetTransferSize(DMA_Type *base, uint32_t channel, uint32_t size)

Sets the DMA transfer size for the DMA transfer.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
size – The number of bytes to be transferred.

void DMA_SetModulo(DMA_Type *base, uint32_t channel, dma_modulo_t srcModulo, dma_modulo_t destModulo)

Sets the DMA modulo for the DMA transfer.

This function defines a specific address range specified to be the value after (SAR + SSIZE)/(DAR + DSIZE) calculation is performed or the original register value. It provides the ability to implement a circular data queue easily.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
srcModulo – source address modulo.
destModulo – destination address modulo.

static inline void DMA_EnableCycleSteal(DMA_Type *base, uint32_t channel, bool enable)

Enables the DMA cycle steal for the DMA transfer.

If the cycle steal feature is enabled (true), the DMA controller forces a single read/write transfer per request, or it continuously makes read/write transfers until the BCR decrements to 0.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
enable – The command for enable (true) or disable (false).

static inline void DMA_EnableAutoAlign(DMA_Type *base, uint32_t channel, bool enable)

Enables the DMA auto align for the DMA transfer.

If the auto align feature is enabled (true), the appropriate address register increments regardless of DINC or SINC.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
enable – The command for enable (true) or disable (false).

static inline void DMA_EnableAsyncRequest(DMA_Type *base, uint32_t channel, bool enable)

Enables the DMA async request for the DMA transfer.

If the async request feature is enabled (true), the DMA supports asynchronous DREQs while the MCU is in stop mode.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
enable – The command for enable (true) or disable (false).

static inline void DMA_EnableInterrupts(DMA_Type *base, uint32_t channel)

Enables an interrupt for the DMA transfer.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.

static inline void DMA_DisableInterrupts(DMA_Type *base, uint32_t channel)

Disables an interrupt for the DMA transfer.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.

static inline void DMA_EnableChannelRequest(DMA_Type *base, uint32_t channel)

Enables the DMA hardware channel request.

Parameters:

base – DMA peripheral base address.
channel – The DMA channel number.

static inline void DMA_DisableChannelRequest(DMA_Type *base, uint32_t channel)

Disables the DMA hardware channel request.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.

static inline void DMA_TriggerChannelStart(DMA_Type *base, uint32_t channel)

Starts the DMA transfer with a software trigger.

This function starts only one read/write iteration.

Parameters:

base – DMA peripheral base address.
channel – The DMA channel number.

static inline void DMA_EnableAutoStopRequest(DMA_Type *base, uint32_t channel, bool enable)

Starts the DMA enable/disable auto disable request.

Parameters:

base – DMA peripheral base address.
channel – The DMA channel number.
enable – true is enable, false is disable.

static inline uint32_t DMA_GetRemainingBytes(DMA_Type *base, uint32_t channel)

Gets the remaining bytes of the current DMA transfer.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.

Returns:

The number of bytes which have not been transferred yet.

static inline uint32_t DMA_GetChannelStatusFlags(DMA_Type *base, uint32_t channel)

Gets the DMA channel status flags.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.

Returns:

The mask of the channel status. Use the _dma_channel_status_flags type to decode the return 32 bit variables.

static inline void DMA_ClearChannelStatusFlags(DMA_Type *base, uint32_t channel, uint32_t mask)

Clears the DMA channel status flags.

Parameters:

base – DMA peripheral base address.
channel – DMA channel number.
mask – The mask of the channel status to be cleared. Use the defined _dma_channel_status_flags type.

void DMA_CreateHandle(dma_handle_t *handle, DMA_Type *base, uint32_t channel)

Creates the DMA handle.

This function is called first if using the transactional API for the DMA. This function initializes the internal state of the DMA handle.

Parameters:

handle – DMA handle pointer. The DMA handle stores callback function and parameters.
base – DMA peripheral base address.
channel – DMA channel number.

void DMA_SetCallback(dma_handle_t *handle, dma_callback callback, void *userData)

Sets the DMA callback function.

This callback is called in the DMA IRQ handler. Use the callback to do something after the current transfer complete.

Parameters:

handle – DMA handle pointer.
callback – DMA callback function pointer.
userData – Parameter for callback function. If it is not needed, just set to NULL.

void DMA_PrepareTransferConfig(dma_transfer_config_t *config, void *srcAddr, uint32_t srcWidth, void *destAddr, uint32_t destWidth, uint32_t transferBytes, dma_addr_increment_t srcIncrement, dma_addr_increment_t destIncrement)

Prepares the DMA transfer configuration structure.

This function prepares the transfer configuration structure according to the user input. The difference between this function and DMA_PrepareTransfer is that this function expose the address increment parameter to application, but in DMA_PrepareTransfer, only parts of the address increment option can be selected by dma_transfer_type_t.

Parameters:

config – Pointer to the user configuration structure of type dma_transfer_config_t.
srcAddr – DMA transfer source address.
srcWidth – DMA transfer source address width (byte).
destAddr – DMA transfer destination address.
destWidth – DMA transfer destination address width (byte).
transferBytes – DMA transfer bytes to be transferred.
srcIncrement – source address increment type.
destIncrement – dest address increment type.

void DMA_PrepareTransfer(dma_transfer_config_t *config, void *srcAddr, uint32_t srcWidth, void *destAddr, uint32_t destWidth, uint32_t transferBytes, dma_transfer_type_t type)

Prepares the DMA transfer configuration structure.

This function prepares the transfer configuration structure according to the user input.

Parameters:

config – Pointer to the user configuration structure of type dma_transfer_config_t.
srcAddr – DMA transfer source address.
srcWidth – DMA transfer source address width (byte).
destAddr – DMA transfer destination address.
destWidth – DMA transfer destination address width (byte).
transferBytes – DMA transfer bytes to be transferred.
type – DMA transfer type.

status_t DMA_SubmitTransfer(dma_handle_t *handle, const dma_transfer_config_t *config, uint32_t options)

Submits the DMA transfer request.

This function submits the DMA transfer request according to the transfer configuration structure.

Note

This function can’t process multi transfer request.

Parameters:

handle – DMA handle pointer.
config – Pointer to DMA transfer configuration structure.
options – Additional configurations for transfer. Use the defined dma_transfer_options_t type.

Return values:

kStatus_DMA_Success – It indicates that the DMA submit transfer request succeeded.
kStatus_DMA_Busy – It indicates that the DMA is busy. Submit transfer request is not allowed.

static inline void DMA_StartTransfer(dma_handle_t *handle)

DMA starts a transfer.

This function enables the channel request. Call this function after submitting a transfer request.

Parameters:

handle – DMA handle pointer.

Return values:

kStatus_DMA_Success – It indicates that the DMA start transfer succeed.
kStatus_DMA_Busy – It indicates that the DMA has started a transfer.

static inline void DMA_StopTransfer(dma_handle_t *handle)

DMA stops a transfer.

This function disables the channel request to stop a DMA transfer. The transfer can be resumed by calling the DMA_StartTransfer.

Parameters:

handle – DMA handle pointer.

void DMA_AbortTransfer(dma_handle_t *handle)

DMA aborts a transfer.

This function disables the channel request and clears all status bits. Submit another transfer after calling this API.

Parameters:

handle – DMA handle pointer.

void DMA_HandleIRQ(dma_handle_t *handle)

DMA IRQ handler for current transfer complete.

This function clears the channel interrupt flag and calls the callback function if it is not NULL.

Parameters:

handle – DMA handle pointer.

FSL_DMA_DRIVER_VERSION: DMA driver version 2.1.2.

_dma_channel_status_flags status flag for the DMA driver.

Values:

enumerator kDMA_TransactionsBCRFlag: Contains the number of bytes yet to be transferred for a given block

enumerator kDMA_TransactionsDoneFlag: Transactions Done

enumerator kDMA_TransactionsBusyFlag: Transactions Busy

enumerator kDMA_TransactionsRequestFlag: Transactions Request

enumerator kDMA_BusErrorOnDestinationFlag: Bus Error on Destination

enumerator kDMA_BusErrorOnSourceFlag: Bus Error on Source

enumerator kDMA_ConfigurationErrorFlag: Configuration Error

enum _dma_transfer_size

DMA transfer size type.

Values:

enumerator kDMA_Transfersize32bits: 32 bits are transferred for every read/write

enumerator kDMA_Transfersize8bits: 8 bits are transferred for every read/write

enumerator kDMA_Transfersize16bits: 16b its are transferred for every read/write

enum _dma_modulo

Configuration type for the DMA modulo.

Values:

enumerator kDMA_ModuloDisable: Buffer disabled

enumerator kDMA_Modulo16Bytes: Circular buffer size is 16 bytes.

enumerator kDMA_Modulo32Bytes: Circular buffer size is 32 bytes.

enumerator kDMA_Modulo64Bytes: Circular buffer size is 64 bytes.

enumerator kDMA_Modulo128Bytes: Circular buffer size is 128 bytes.

enumerator kDMA_Modulo256Bytes: Circular buffer size is 256 bytes.

enumerator kDMA_Modulo512Bytes: Circular buffer size is 512 bytes.

enumerator kDMA_Modulo1KBytes: Circular buffer size is 1 KB.

enumerator kDMA_Modulo2KBytes: Circular buffer size is 2 KB.

enumerator kDMA_Modulo4KBytes: Circular buffer size is 4 KB.

enumerator kDMA_Modulo8KBytes: Circular buffer size is 8 KB.

enumerator kDMA_Modulo16KBytes: Circular buffer size is 16 KB.

enumerator kDMA_Modulo32KBytes: Circular buffer size is 32 KB.

enumerator kDMA_Modulo64KBytes: Circular buffer size is 64 KB.

enumerator kDMA_Modulo128KBytes: Circular buffer size is 128 KB.

enumerator kDMA_Modulo256KBytes: Circular buffer size is 256 KB.

enum _dma_channel_link_type

DMA channel link type.

Values:

enumerator kDMA_ChannelLinkDisable: No channel link.

enumerator kDMA_ChannelLinkChannel1AndChannel2: Perform a link to channel LCH1 after each cycle-steal transfer. followed by a link to LCH2 after the BCR decrements to 0.

enumerator kDMA_ChannelLinkChannel1: Perform a link to LCH1 after each cycle-steal transfer.

enumerator kDMA_ChannelLinkChannel1AfterBCR0: Perform a link to LCH1 after the BCR decrements.

enum _dma_transfer_type

DMA transfer type.

Values:

enumerator kDMA_MemoryToMemory: Memory to Memory transfer.

enumerator kDMA_PeripheralToMemory: Peripheral to Memory transfer.

enumerator kDMA_MemoryToPeripheral: Memory to Peripheral transfer.

enum _dma_transfer_options

DMA transfer options.

Values:

enumerator kDMA_NoOptions: Transfer without options.

enumerator kDMA_EnableInterrupt: Enable interrupt while transfer complete.

enum _dma_addr_increment

dma addre increment type

Values:

enumerator kDMA_AddrNoIncrement: Transfer address not increment.

enumerator kDMA_AddrIncrementPerTransferWidth: Transfer address increment per transfer width

_dma_transfer_status DMA transfer status

Values:

enumerator kStatus_DMA_Busy: DMA is busy.

typedef enum _dma_transfer_size dma_transfer_size_t: DMA transfer size type.

typedef enum _dma_modulo dma_modulo_t: Configuration type for the DMA modulo.

typedef enum _dma_channel_link_type dma_channel_link_type_t: DMA channel link type.

typedef enum _dma_transfer_type dma_transfer_type_t: DMA transfer type.

typedef enum _dma_transfer_options dma_transfer_options_t: DMA transfer options.

typedef enum _dma_addr_increment dma_addr_increment_t: dma addre increment type

typedef struct _dma_transfer_config dma_transfer_config_t: DMA transfer configuration structure.

typedef struct _dma_channel_link_config dma_channel_link_config_t: DMA transfer configuration structure.

typedef void (*dma_callback)(struct _dma_handle *handle, void *userData): Callback function prototype for the DMA driver.

typedef struct _dma_handle dma_handle_t: DMA DMA handle structure.

struct _dma_transfer_config

#include <fsl_dma.h>

DMA transfer configuration structure.

Public Members

uint32_t srcAddr: DMA transfer source address.

uint32_t destAddr: DMA destination address.

bool enableSrcIncrement: Source address increase after each transfer.

dma_transfer_size_t srcSize: Source transfer size unit.

bool enableDestIncrement: Destination address increase after each transfer.

dma_transfer_size_t destSize: Destination transfer unit.

uint32_t transferSize: The number of bytes to be transferred.

struct _dma_channel_link_config

#include <fsl_dma.h>

DMA transfer configuration structure.

Public Members

dma_channel_link_type_t linkType: Channel link type.

uint32_t channel1: The index of channel 1.

uint32_t channel2: The index of channel 2.

struct _dma_handle

#include <fsl_dma.h>

DMA DMA handle structure.

Public Members

DMA_Type *base: DMA peripheral address.

uint8_t channel: DMA channel used.

dma_callback callback: DMA callback function.

void *userData: Callback parameter.

DMAMUX: Direct Memory Access Multiplexer Driver

void DMAMUX_Init(DMAMUX_Type *base)

Initializes the DMAMUX peripheral.

This function ungates the DMAMUX clock.

Parameters:

base – DMAMUX peripheral base address.

void DMAMUX_Deinit(DMAMUX_Type *base)

Deinitializes the DMAMUX peripheral.

This function gates the DMAMUX clock.

Parameters:

base – DMAMUX peripheral base address.

static inline void DMAMUX_EnableChannel(DMAMUX_Type *base, uint32_t channel)

Enables the DMAMUX channel.

This function enables the DMAMUX channel.

Parameters:

base – DMAMUX peripheral base address.
channel – DMAMUX channel number.

static inline void DMAMUX_DisableChannel(DMAMUX_Type *base, uint32_t channel)

Disables the DMAMUX channel.

This function disables the DMAMUX channel.

Note

The user must disable the DMAMUX channel before configuring it.

Parameters:

base – DMAMUX peripheral base address.
channel – DMAMUX channel number.

static inline void DMAMUX_SetSource(DMAMUX_Type *base, uint32_t channel, int32_t source)

Configures the DMAMUX channel source.

Parameters:

base – DMAMUX peripheral base address.
channel – DMAMUX channel number.
source – Channel source, which is used to trigger the DMA transfer.User need to use the dma_request_source_t type as the input parameter.

static inline void DMAMUX_EnablePeriodTrigger(DMAMUX_Type *base, uint32_t channel)

Enables the DMAMUX period trigger.

This function enables the DMAMUX period trigger feature.

Parameters:

base – DMAMUX peripheral base address.
channel – DMAMUX channel number.

static inline void DMAMUX_DisablePeriodTrigger(DMAMUX_Type *base, uint32_t channel)

Disables the DMAMUX period trigger.

This function disables the DMAMUX period trigger.

Parameters:

base – DMAMUX peripheral base address.
channel – DMAMUX channel number.

FSL_DMAMUX_DRIVER_VERSION: DMAMUX driver version 2.1.0.

FGPIO Driver

void FGPIO_PinInit(FGPIO_Type *base, uint32_t pin, const gpio_pin_config_t *config)

Initializes a FGPIO pin used by the board.

To initialize the FGPIO driver, define a pin configuration, as either input or output, in the user file. Then, call the FGPIO_PinInit() function.

This is an example to define an input pin or an output pin configuration:

Define a digital input pin configuration,
gpio_pin_config_t config =
{
  kGPIO_DigitalInput,
  0,
}
Define a digital output pin configuration,
gpio_pin_config_t config =
{
  kGPIO_DigitalOutput,
  0,
}

Parameters:

base – FGPIO peripheral base pointer (FGPIOA, FGPIOB, FGPIOC, and so on.)
pin – FGPIO port pin number
config – FGPIO pin configuration pointer

static inline void FGPIO_PinWrite(FGPIO_Type *base, uint32_t pin, uint8_t output)

Sets the output level of the multiple FGPIO pins to the logic 1 or 0.

Parameters:

base – FGPIO peripheral base pointer (FGPIOA, FGPIOB, FGPIOC, and so on.)
pin – FGPIO pin number
output – FGPIOpin output logic level.
- 0: corresponding pin output low-logic level.
- 1: corresponding pin output high-logic level.

static inline void FGPIO_PortSet(FGPIO_Type *base, uint32_t mask)

Sets the output level of the multiple FGPIO pins to the logic 1.

Parameters:

base – FGPIO peripheral base pointer (FGPIOA, FGPIOB, FGPIOC, and so on.)
mask – FGPIO pin number macro

static inline void FGPIO_PortClear(FGPIO_Type *base, uint32_t mask)

Sets the output level of the multiple FGPIO pins to the logic 0.

Parameters:

base – FGPIO peripheral base pointer (FGPIOA, FGPIOB, FGPIOC, and so on.)
mask – FGPIO pin number macro

static inline void FGPIO_PortToggle(FGPIO_Type *base, uint32_t mask)

Reverses the current output logic of the multiple FGPIO pins.

Parameters:

base – FGPIO peripheral base pointer (FGPIOA, FGPIOB, FGPIOC, and so on.)
mask – FGPIO pin number macro

static inline uint32_t FGPIO_PinRead(FGPIO_Type *base, uint32_t pin)

Reads the current input value of the FGPIO port.

Parameters:

base – FGPIO peripheral base pointer (FGPIOA, FGPIOB, FGPIOC, and so on.)
pin – FGPIO pin number

Return values:

FGPIO – port input value

0: corresponding pin input low-logic level.
1: corresponding pin input high-logic level.

uint32_t FGPIO_PortGetInterruptFlags(FGPIO_Type *base)

Reads the FGPIO port interrupt status flag.

If a pin is configured to generate the DMA request, the corresponding flag is cleared automatically at the completion of the requested DMA transfer. Otherwise, the flag remains set until a logic one is written to that flag. If configured for a level-sensitive interrupt that remains asserted, the flag is set again immediately.

Parameters:

base – FGPIO peripheral base pointer (FGPIOA, FGPIOB, FGPIOC, and so on.)

Return values:

The – current FGPIO port interrupt status flags, for example, 0x00010001 means the pin 0 and 17 have the interrupt.

void FGPIO_PortClearInterruptFlags(FGPIO_Type *base, uint32_t mask)

Clears the multiple FGPIO pin interrupt status flag.

Parameters:

base – FGPIO peripheral base pointer (FGPIOA, FGPIOB, FGPIOC, and so on.)
mask – FGPIO pin number macro

C90TFS Flash Driver

FlexIO: FlexIO Driver

FlexIO DMA I2S Driver

void FLEXIO_I2S_TransferTxCreateHandleDMA(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle, flexio_i2s_dma_callback_t callback, void *userData, dma_handle_t *dmaHandle)

Initializes the FlexIO I2S DMA handle.

This function initializes the FlexIO I2S master DMA handle which can be used for other FlexIO I2S master transactional APIs. Usually, for a specified FlexIO I2S instance, call this API once to get the initialized handle.

Parameters:

base – FlexIO I2S peripheral base address.
handle – FlexIO I2S DMA handle pointer.
callback – FlexIO I2S DMA callback function called while finished a block.
userData – User parameter for callback.
dmaHandle – DMA handle for FlexIO I2S. This handle is a static value allocated by users.

void FLEXIO_I2S_TransferRxCreateHandleDMA(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle, flexio_i2s_dma_callback_t callback, void *userData, dma_handle_t *dmaHandle)

Initializes the FlexIO I2S Rx DMA handle.

This function initializes the FlexIO I2S slave DMA handle which can be used for other FlexIO I2S master transactional APIs. Usually, for a specified FlexIO I2S instance, call this API once to get the initialized handle.

Parameters:

base – FlexIO I2S peripheral base address.
handle – FlexIO I2S DMA handle pointer.
callback – FlexIO I2S DMA callback function called while finished a block.
userData – User parameter for callback.
dmaHandle – DMA handle for FlexIO I2S. This handle is a static value allocated by users.

void FLEXIO_I2S_TransferSetFormatDMA(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle, flexio_i2s_format_t *format, uint32_t srcClock_Hz)

Configures the FlexIO I2S Tx audio format.

Audio format can be changed at run-time of FlexIO I2S. This function configures the sample rate and audio data format to be transferred. This function also sets the DMA parameter according to the format.

Parameters:

base – FlexIO I2S peripheral base address.
handle – FlexIO I2S DMA handle pointer
format – Pointer to FlexIO I2S audio data format structure.
srcClock_Hz – FlexIO I2S clock source frequency in Hz. It should be 0 while in slave mode.

status_t FLEXIO_I2S_TransferSendDMA(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle, flexio_i2s_transfer_t *xfer)

Performs a non-blocking FlexIO I2S transfer using DMA.

Note

This interface returns immediately after transfer initiates. Call FLEXIO_I2S_GetTransferStatus to poll the transfer status and check whether FLEXIO I2S transfer finished.

Parameters:

base – FlexIO I2S peripheral base address.
handle – FlexIO I2S DMA handle pointer.
xfer – Pointer to DMA transfer structure.

Return values:

kStatus_Success – Start a FlexIO I2S DMA send successfully.
kStatus_InvalidArgument – The input arguments is invalid.
kStatus_TxBusy – FlexIO I2S is busy sending data.

status_t FLEXIO_I2S_TransferReceiveDMA(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle, flexio_i2s_transfer_t *xfer)

Performs a non-blocking FlexIO I2S receive using DMA.

Note

This interface returns immediately after transfer initiates. Call FLEXIO_I2S_GetReceiveRemainingBytes to poll the transfer status to check whether the FlexIO I2S transfer is finished.

Parameters:

base – FlexIO I2S peripheral base address.
handle – FlexIO I2S DMA handle pointer.
xfer – Pointer to DMA transfer structure.

Return values:

kStatus_Success – Start a FlexIO I2S DMA receive successfully.
kStatus_InvalidArgument – The input arguments is invalid.
kStatus_RxBusy – FlexIO I2S is busy receiving data.

void FLEXIO_I2S_TransferAbortSendDMA(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle)

Aborts a FlexIO I2S transfer using DMA.

Parameters:

base – FlexIO I2S peripheral base address.
handle – FlexIO I2S DMA handle pointer.

void FLEXIO_I2S_TransferAbortReceiveDMA(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle)

Aborts a FlexIO I2S receive using DMA.

Parameters:

base – FlexIO I2S peripheral base address.
handle – FlexIO I2S DMA handle pointer.

status_t FLEXIO_I2S_TransferGetSendCountDMA(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle, size_t *count)

Gets the remaining bytes to be sent.

Parameters:

base – FlexIO I2S peripheral base address.
handle – FlexIO I2S DMA handle pointer.
count – Bytes sent.

Return values:

kStatus_Success – Succeed get the transfer count.
kStatus_NoTransferInProgress – There is not a non-blocking transaction currently in progress.

status_t FLEXIO_I2S_TransferGetReceiveCountDMA(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle, size_t *count)

Gets the remaining bytes to be received.

Parameters:

base – FlexIO I2S peripheral base address.
handle – FlexIO I2S DMA handle pointer.
count – Bytes received.

Return values:

kStatus_Success – Succeed get the transfer count.
kStatus_NoTransferInProgress – There is not a non-blocking transaction currently in progress.

FSL_FLEXIO_I2S_DMA_DRIVER_VERSION: FlexIO I2S DMA driver version 2.1.7.

typedef struct _flexio_i2s_dma_handle flexio_i2s_dma_handle_t

typedef void (*flexio_i2s_dma_callback_t)(FLEXIO_I2S_Type *base, flexio_i2s_dma_handle_t *handle, status_t status, void *userData): FlexIO I2S DMA transfer callback function for finish and error.

struct _flexio_i2s_dma_handle

#include <fsl_flexio_i2s_dma.h>

FlexIO I2S DMA transfer handle, users should not touch the content of the handle.

Public Members

dma_handle_t *dmaHandle: DMA handler for FlexIO I2S send

uint8_t bytesPerFrame: Bytes in a frame

uint32_t state: Internal state for FlexIO I2S DMA transfer

flexio_i2s_dma_callback_t callback: Callback for users while transfer finish or error occurred

void *userData: User callback parameter

flexio_i2s_transfer_t queue[(4U)]: Transfer queue storing queued transfer.

size_t transferSize[(4U)]: Data bytes need to transfer

volatile uint8_t queueUser: Index for user to queue transfer.

volatile uint8_t queueDriver: Index for driver to get the transfer data and size

FlexIO DMA SPI Driver

status_t FLEXIO_SPI_MasterTransferCreateHandleDMA(FLEXIO_SPI_Type *base, flexio_spi_master_dma_handle_t *handle, flexio_spi_master_dma_transfer_callback_t callback, void *userData, dma_handle_t *txHandle, dma_handle_t *rxHandle)

Initializes the FLEXO SPI master DMA handle.

This function initializes the FLEXO SPI master DMA handle which can be used for other FLEXO SPI master transactional APIs. Usually, for a specified FLEXO SPI instance, call this API once to get the initialized handle.

Parameters:

base – Pointer to FLEXIO_SPI_Type structure.
handle – Pointer to flexio_spi_master_dma_handle_t structure to store the transfer state.
callback – SPI callback, NULL means no callback.
userData – callback function parameter.
txHandle – User requested DMA handle for FlexIO SPI RX DMA transfer.
rxHandle – User requested DMA handle for FlexIO SPI TX DMA transfer.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_OutOfRange – The FlexIO SPI DMA type/handle table out of range.

status_t FLEXIO_SPI_MasterTransferDMA(FLEXIO_SPI_Type *base, flexio_spi_master_dma_handle_t *handle, flexio_spi_transfer_t *xfer)

Performs a non-blocking FlexIO SPI transfer using DMA.

Note

This interface returned immediately after transfer initiates. Call FLEXIO_SPI_MasterGetTransferCountDMA to poll the transfer status to check whether the FlexIO SPI transfer is finished.

Parameters:

base – Pointer to FLEXIO_SPI_Type structure.
handle – Pointer to flexio_spi_master_dma_handle_t structure to store the transfer state.
xfer – Pointer to FlexIO SPI transfer structure.

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_InvalidArgument – Input argument is invalid.
kStatus_FLEXIO_SPI_Busy – FlexIO SPI is not idle, is running another transfer.

void FLEXIO_SPI_MasterTransferAbortDMA(FLEXIO_SPI_Type *base, flexio_spi_master_dma_handle_t *handle)

Aborts a FlexIO SPI transfer using DMA.

Parameters:

base – Pointer to FLEXIO_SPI_Type structure.
handle – FlexIO SPI DMA handle pointer.

status_t FLEXIO_SPI_MasterTransferGetCountDMA(FLEXIO_SPI_Type *base, flexio_spi_master_dma_handle_t *handle, size_t *count)

Gets the remaining bytes for FlexIO SPI DMA transfer.

Parameters:

base – Pointer to FLEXIO_SPI_Type structure.
handle – FlexIO SPI DMA handle pointer.
count – Number of bytes transferred so far by the non-blocking transaction.

static inline void FLEXIO_SPI_SlaveTransferCreateHandleDMA(FLEXIO_SPI_Type *base, flexio_spi_slave_dma_handle_t *handle, flexio_spi_slave_dma_transfer_callback_t callback, void *userData, dma_handle_t *txHandle, dma_handle_t *rxHandle)

Initializes the FlexIO SPI slave DMA handle.

This function initializes the FlexIO SPI slave DMA handle.

Parameters:

base – Pointer to FLEXIO_SPI_Type structure.
handle – Pointer to flexio_spi_slave_dma_handle_t structure to store the transfer state.
callback – SPI callback, NULL means no callback.
userData – callback function parameter.
txHandle – User requested DMA handle for FlexIO SPI TX DMA transfer.
rxHandle – User requested DMA handle for FlexIO SPI RX DMA transfer.

status_t FLEXIO_SPI_SlaveTransferDMA(FLEXIO_SPI_Type *base, flexio_spi_slave_dma_handle_t *handle, flexio_spi_transfer_t *xfer)

Performs a non-blocking FlexIO SPI transfer using DMA.

Note

This interface returns immediately after transfer initiates. Call FLEXIO_SPI_SlaveGetTransferCountDMA to poll the transfer status and check whether the FlexIO SPI transfer is finished.

Parameters:

base – Pointer to FLEXIO_SPI_Type structure.
handle – Pointer to flexio_spi_slave_dma_handle_t structure to store the transfer state.
xfer – Pointer to FlexIO SPI transfer structure.

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_InvalidArgument – Input argument is invalid.
kStatus_FLEXIO_SPI_Busy – FlexIO SPI is not idle, is running another transfer.

static inline void FLEXIO_SPI_SlaveTransferAbortDMA(FLEXIO_SPI_Type *base, flexio_spi_slave_dma_handle_t *handle)

Aborts a FlexIO SPI transfer using DMA.

Parameters:

base – Pointer to FLEXIO_SPI_Type structure.
handle – Pointer to flexio_spi_slave_dma_handle_t structure to store the transfer state.

static inline status_t FLEXIO_SPI_SlaveTransferGetCountDMA(FLEXIO_SPI_Type *base, flexio_spi_slave_dma_handle_t *handle, size_t *count)

Gets the remaining bytes to be transferred for FlexIO SPI DMA.

Parameters:

base – Pointer to FLEXIO_SPI_Type structure.
handle – FlexIO SPI DMA handle pointer.
count – Number of bytes transferred so far by the non-blocking transaction.

FSL_FLEXIO_SPI_DMA_DRIVER_VERSION: FlexIO SPI DMA driver version 2.3.0.

typedef struct _flexio_spi_master_dma_handle flexio_spi_master_dma_handle_t: typedef for flexio_spi_master_dma_handle_t in advance.

typedef flexio_spi_master_dma_handle_t flexio_spi_slave_dma_handle_t: Slave handle is the same with master handle.

typedef void (*flexio_spi_master_dma_transfer_callback_t)(FLEXIO_SPI_Type *base, flexio_spi_master_dma_handle_t *handle, status_t status, void *userData): FlexIO SPI master callback for finished transmit.

typedef void (*flexio_spi_slave_dma_transfer_callback_t)(FLEXIO_SPI_Type *base, flexio_spi_slave_dma_handle_t *handle, status_t status, void *userData): FlexIO SPI slave callback for finished transmit.

struct _flexio_spi_master_dma_handle

#include <fsl_flexio_spi_dma.h>

FlexIO SPI DMA transfer handle, users should not touch the content of the handle.

Public Members

size_t transferSize: Total bytes to be transferred.

bool txInProgress: Send transfer in progress

bool rxInProgress: Receive transfer in progress

dma_handle_t *txHandle: DMA handler for SPI send

dma_handle_t *rxHandle: DMA handler for SPI receive

flexio_spi_master_dma_transfer_callback_t callback: Callback for SPI DMA transfer

void *userData: User Data for SPI DMA callback

FlexIO DMA UART Driver

status_t FLEXIO_UART_TransferCreateHandleDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle, flexio_uart_dma_transfer_callback_t callback, void *userData, dma_handle_t *txDmaHandle, dma_handle_t *rxDmaHandle)

Initializes the FLEXIO_UART handle which is used in transactional functions.

Parameters:

base – Pointer to FLEXIO_UART_Type structure.
handle – Pointer to flexio_uart_dma_handle_t structure.
callback – FlexIO UART callback, NULL means no callback.
userData – User callback function data.
txDmaHandle – User requested DMA handle for TX DMA transfer.
rxDmaHandle – User requested DMA handle for RX DMA transfer.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_OutOfRange – The FlexIO UART DMA type/handle table out of range.

status_t FLEXIO_UART_TransferSendDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle, flexio_uart_transfer_t *xfer)

Sends data using DMA.

This function send data using DMA. This is non-blocking function, which returns right away. When all data is sent out, the send callback function is called.

Parameters:

base – Pointer to FLEXIO_UART_Type structure
handle – Pointer to flexio_uart_dma_handle_t structure
xfer – FLEXIO_UART DMA transfer structure, see flexio_uart_transfer_t.

Return values:

kStatus_Success – if succeed, others failed.
kStatus_FLEXIO_UART_TxBusy – Previous transfer on going.

status_t FLEXIO_UART_TransferReceiveDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle, flexio_uart_transfer_t *xfer)

Receives data using DMA.

This function receives data using DMA. This is non-blocking function, which returns right away. When all data is received, the receive callback function is called.

Parameters:

base – Pointer to FLEXIO_UART_Type structure
handle – Pointer to flexio_uart_dma_handle_t structure
xfer – FLEXIO_UART DMA transfer structure, see flexio_uart_transfer_t.

Return values:

kStatus_Success – if succeed, others failed.
kStatus_FLEXIO_UART_RxBusy – Previous transfer on going.

void FLEXIO_UART_TransferAbortSendDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle)

Aborts the sent data which using DMA.

This function aborts the sent data which using DMA.

Parameters:

base – Pointer to FLEXIO_UART_Type structure
handle – Pointer to flexio_uart_dma_handle_t structure

void FLEXIO_UART_TransferAbortReceiveDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle)

Aborts the receive data which using DMA.

This function aborts the receive data which using DMA.

Parameters:

base – Pointer to FLEXIO_UART_Type structure
handle – Pointer to flexio_uart_dma_handle_t structure

status_t FLEXIO_UART_TransferGetSendCountDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle, size_t *count)

Gets the number of bytes sent out.

This function gets the number of bytes sent out.

Parameters:

base – Pointer to FLEXIO_UART_Type structure
handle – Pointer to flexio_uart_dma_handle_t structure
count – Number of bytes sent so far by the non-blocking transaction.

Return values:

kStatus_NoTransferInProgress – transfer has finished or no transfer in progress.
kStatus_Success – Successfully return the count.

status_t FLEXIO_UART_TransferGetReceiveCountDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle, size_t *count)

Gets the number of bytes received.

This function gets the number of bytes received.

Parameters:

base – Pointer to FLEXIO_UART_Type structure
handle – Pointer to flexio_uart_dma_handle_t structure
count – Number of bytes received so far by the non-blocking transaction.

Return values:

kStatus_NoTransferInProgress – transfer has finished or no transfer in progress.
kStatus_Success – Successfully return the count.

FSL_FLEXIO_UART_DMA_DRIVER_VERSION: FlexIO UART DMA driver version.

typedef struct _flexio_uart_dma_handle flexio_uart_dma_handle_t

typedef void (*flexio_uart_dma_transfer_callback_t)(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle, status_t status, void *userData): UART transfer callback function.

struct _flexio_uart_dma_handle

#include <fsl_flexio_uart_dma.h>

UART DMA handle.

Public Members

flexio_uart_dma_transfer_callback_t callback: Callback function.

void *userData: UART callback function parameter.

size_t txDataSizeAll: Total bytes to be sent.

size_t rxDataSizeAll: Total bytes to be received.

dma_handle_t *txDmaHandle: The DMA TX channel used.

dma_handle_t *rxDmaHandle: The DMA RX channel used.

volatile uint8_t txState: TX transfer state.

volatile uint8_t rxState: RX transfer state

FlexIO Driver

void FLEXIO_GetDefaultConfig(flexio_config_t *userConfig)

Gets the default configuration to configure the FlexIO module. The configuration can used directly to call the FLEXIO_Configure().

Example:

flexio_config_t config;
FLEXIO_GetDefaultConfig(&config);

Parameters:

userConfig – pointer to flexio_config_t structure

void FLEXIO_Init(FLEXIO_Type *base, const flexio_config_t *userConfig)

Configures the FlexIO with a FlexIO configuration. The configuration structure can be filled by the user or be set with default values by FLEXIO_GetDefaultConfig().

Example

flexio_config_t config = {
.enableFlexio = true,
.enableInDoze = false,
.enableInDebug = true,
.enableFastAccess = false
};
FLEXIO_Configure(base, &config);

Parameters:

base – FlexIO peripheral base address
userConfig – pointer to flexio_config_t structure

void FLEXIO_Deinit(FLEXIO_Type *base)

Gates the FlexIO clock. Call this API to stop the FlexIO clock.

Note

After calling this API, call the FLEXO_Init to use the FlexIO module.

Parameters:

base – FlexIO peripheral base address

uint32_t FLEXIO_GetInstance(FLEXIO_Type *base)

Get instance number for FLEXIO module.

Parameters:

base – FLEXIO peripheral base address.

void FLEXIO_Reset(FLEXIO_Type *base)

Resets the FlexIO module.

Parameters:

base – FlexIO peripheral base address

static inline void FLEXIO_Enable(FLEXIO_Type *base, bool enable)

Enables the FlexIO module operation.

Parameters:

base – FlexIO peripheral base address
enable – true to enable, false to disable.

static inline uint32_t FLEXIO_ReadPinInput(FLEXIO_Type *base)

Reads the input data on each of the FlexIO pins.

Parameters:

base – FlexIO peripheral base address

Returns:

FlexIO pin input data

static inline uint8_t FLEXIO_GetShifterState(FLEXIO_Type *base)

Gets the current state pointer for state mode use.

Parameters:

base – FlexIO peripheral base address

Returns:

current State pointer

void FLEXIO_SetShifterConfig(FLEXIO_Type *base, uint8_t index, const flexio_shifter_config_t *shifterConfig)

Configures the shifter with the shifter configuration. The configuration structure covers both the SHIFTCTL and SHIFTCFG registers. To configure the shifter to the proper mode, select which timer controls the shifter to shift, whether to generate start bit/stop bit, and the polarity of start bit and stop bit.

Example

flexio_shifter_config_t config = {
.timerSelect = 0,
.timerPolarity = kFLEXIO_ShifterTimerPolarityOnPositive,
.pinConfig = kFLEXIO_PinConfigOpenDrainOrBidirection,
.pinPolarity = kFLEXIO_PinActiveLow,
.shifterMode = kFLEXIO_ShifterModeTransmit,
.inputSource = kFLEXIO_ShifterInputFromPin,
.shifterStop = kFLEXIO_ShifterStopBitHigh,
.shifterStart = kFLEXIO_ShifterStartBitLow
};
FLEXIO_SetShifterConfig(base, &config);

Parameters:

base – FlexIO peripheral base address
index – Shifter index
shifterConfig – Pointer to flexio_shifter_config_t structure

void FLEXIO_SetTimerConfig(FLEXIO_Type *base, uint8_t index, const flexio_timer_config_t *timerConfig)

Configures the timer with the timer configuration. The configuration structure covers both the TIMCTL and TIMCFG registers. To configure the timer to the proper mode, select trigger source for timer and the timer pin output and the timing for timer.

Example

flexio_timer_config_t config = {
.triggerSelect = FLEXIO_TIMER_TRIGGER_SEL_SHIFTnSTAT(0),
.triggerPolarity = kFLEXIO_TimerTriggerPolarityActiveLow,
.triggerSource = kFLEXIO_TimerTriggerSourceInternal,
.pinConfig = kFLEXIO_PinConfigOpenDrainOrBidirection,
.pinSelect = 0,
.pinPolarity = kFLEXIO_PinActiveHigh,
.timerMode = kFLEXIO_TimerModeDual8BitBaudBit,
.timerOutput = kFLEXIO_TimerOutputZeroNotAffectedByReset,
.timerDecrement = kFLEXIO_TimerDecSrcOnFlexIOClockShiftTimerOutput,
.timerReset = kFLEXIO_TimerResetOnTimerPinEqualToTimerOutput,
.timerDisable = kFLEXIO_TimerDisableOnTimerCompare,
.timerEnable = kFLEXIO_TimerEnableOnTriggerHigh,
.timerStop = kFLEXIO_TimerStopBitEnableOnTimerDisable,
.timerStart = kFLEXIO_TimerStartBitEnabled
};
FLEXIO_SetTimerConfig(base, &config);

Parameters:

base – FlexIO peripheral base address
index – Timer index
timerConfig – Pointer to the flexio_timer_config_t structure

static inline void FLEXIO_SetClockMode(FLEXIO_Type *base, uint8_t index, flexio_timer_decrement_source_t clocksource)

This function set the value of the prescaler on flexio channels.

Parameters:

base – Pointer to the FlexIO simulated peripheral type.
index – Timer index
clocksource – Set clock value

static inline void FLEXIO_EnableShifterStatusInterrupts(FLEXIO_Type *base, uint32_t mask)

Enables the shifter status interrupt. The interrupt generates when the corresponding SSF is set.

Note

For multiple shifter status interrupt enable, for example, two shifter status enable, can calculate the mask by using ((1 << shifter index0) | (1 << shifter index1))

Parameters:

base – FlexIO peripheral base address
mask – The shifter status mask which can be calculated by (1 << shifter index)

static inline void FLEXIO_DisableShifterStatusInterrupts(FLEXIO_Type *base, uint32_t mask)

Disables the shifter status interrupt. The interrupt won’t generate when the corresponding SSF is set.

Note

For multiple shifter status interrupt enable, for example, two shifter status enable, can calculate the mask by using ((1 << shifter index0) | (1 << shifter index1))

Parameters:

base – FlexIO peripheral base address
mask – The shifter status mask which can be calculated by (1 << shifter index)

static inline void FLEXIO_EnableShifterErrorInterrupts(FLEXIO_Type *base, uint32_t mask)

Enables the shifter error interrupt. The interrupt generates when the corresponding SEF is set.

Note

For multiple shifter error interrupt enable, for example, two shifter error enable, can calculate the mask by using ((1 << shifter index0) | (1 << shifter index1))

Parameters:

base – FlexIO peripheral base address
mask – The shifter error mask which can be calculated by (1 << shifter index)

static inline void FLEXIO_DisableShifterErrorInterrupts(FLEXIO_Type *base, uint32_t mask)

Disables the shifter error interrupt. The interrupt won’t generate when the corresponding SEF is set.

Note

For multiple shifter error interrupt enable, for example, two shifter error enable, can calculate the mask by using ((1 << shifter index0) | (1 << shifter index1))

Parameters:

base – FlexIO peripheral base address
mask – The shifter error mask which can be calculated by (1 << shifter index)

static inline void FLEXIO_EnableTimerStatusInterrupts(FLEXIO_Type *base, uint32_t mask)

Enables the timer status interrupt. The interrupt generates when the corresponding SSF is set.

Note

For multiple timer status interrupt enable, for example, two timer status enable, can calculate the mask by using ((1 << timer index0) | (1 << timer index1))

Parameters:

base – FlexIO peripheral base address
mask – The timer status mask which can be calculated by (1 << timer index)

static inline void FLEXIO_DisableTimerStatusInterrupts(FLEXIO_Type *base, uint32_t mask)

Disables the timer status interrupt. The interrupt won’t generate when the corresponding SSF is set.

Note

For multiple timer status interrupt enable, for example, two timer status enable, can calculate the mask by using ((1 << timer index0) | (1 << timer index1))

Parameters:

base – FlexIO peripheral base address
mask – The timer status mask which can be calculated by (1 << timer index)

static inline uint32_t FLEXIO_GetShifterStatusFlags(FLEXIO_Type *base)

Gets the shifter status flags.

Parameters:

base – FlexIO peripheral base address

Returns:

Shifter status flags

static inline void FLEXIO_ClearShifterStatusFlags(FLEXIO_Type *base, uint32_t mask)

Clears the shifter status flags.

Note

For clearing multiple shifter status flags, for example, two shifter status flags, can calculate the mask by using ((1 << shifter index0) | (1 << shifter index1))

Parameters:

base – FlexIO peripheral base address
mask – The shifter status mask which can be calculated by (1 << shifter index)

static inline uint32_t FLEXIO_GetShifterErrorFlags(FLEXIO_Type *base)

Gets the shifter error flags.

Parameters:

base – FlexIO peripheral base address

Returns:

Shifter error flags

static inline void FLEXIO_ClearShifterErrorFlags(FLEXIO_Type *base, uint32_t mask)

Clears the shifter error flags.

Note

For clearing multiple shifter error flags, for example, two shifter error flags, can calculate the mask by using ((1 << shifter index0) | (1 << shifter index1))

Parameters:

base – FlexIO peripheral base address
mask – The shifter error mask which can be calculated by (1 << shifter index)

static inline uint32_t FLEXIO_GetTimerStatusFlags(FLEXIO_Type *base)

Gets the timer status flags.

Parameters:

base – FlexIO peripheral base address

Returns:

Timer status flags

static inline void FLEXIO_ClearTimerStatusFlags(FLEXIO_Type *base, uint32_t mask)

Clears the timer status flags.

Note

For clearing multiple timer status flags, for example, two timer status flags, can calculate the mask by using ((1 << timer index0) | (1 << timer index1))

Parameters:

base – FlexIO peripheral base address
mask – The timer status mask which can be calculated by (1 << timer index)

static inline void FLEXIO_EnableShifterStatusDMA(FLEXIO_Type *base, uint32_t mask, bool enable)

Enables/disables the shifter status DMA. The DMA request generates when the corresponding SSF is set.

Note

For multiple shifter status DMA enables, for example, calculate the mask by using ((1 << shifter index0) | (1 << shifter index1))

Parameters:

base – FlexIO peripheral base address
mask – The shifter status mask which can be calculated by (1 << shifter index)
enable – True to enable, false to disable.

uint32_t FLEXIO_GetShifterBufferAddress(FLEXIO_Type *base, flexio_shifter_buffer_type_t type, uint8_t index)

Gets the shifter buffer address for the DMA transfer usage.

Parameters:

base – FlexIO peripheral base address
type – Shifter type of flexio_shifter_buffer_type_t
index – Shifter index

Returns:

Corresponding shifter buffer index

status_t FLEXIO_RegisterHandleIRQ(void *base, void *handle, flexio_isr_t isr)

Registers the handle and the interrupt handler for the FlexIO-simulated peripheral.

Parameters:

base – Pointer to the FlexIO simulated peripheral type.
handle – Pointer to the handler for FlexIO simulated peripheral.
isr – FlexIO simulated peripheral interrupt handler.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_OutOfRange – The FlexIO type/handle/ISR table out of range.

status_t FLEXIO_UnregisterHandleIRQ(void *base)

Unregisters the handle and the interrupt handler for the FlexIO-simulated peripheral.

Parameters:

base – Pointer to the FlexIO simulated peripheral type.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_OutOfRange – The FlexIO type/handle/ISR table out of range.

FSL_FLEXIO_DRIVER_VERSION: FlexIO driver version.

enum _flexio_timer_trigger_polarity

Define time of timer trigger polarity.

Values:

enumerator kFLEXIO_TimerTriggerPolarityActiveHigh: Active high.

enumerator kFLEXIO_TimerTriggerPolarityActiveLow: Active low.

enum _flexio_timer_trigger_source

Define type of timer trigger source.

Values:

enumerator kFLEXIO_TimerTriggerSourceExternal: External trigger selected.

enumerator kFLEXIO_TimerTriggerSourceInternal: Internal trigger selected.

enum _flexio_pin_config

Define type of timer/shifter pin configuration.

Values:

enumerator kFLEXIO_PinConfigOutputDisabled: Pin output disabled.

enumerator kFLEXIO_PinConfigOpenDrainOrBidirection: Pin open drain or bidirectional output enable.

enumerator kFLEXIO_PinConfigBidirectionOutputData: Pin bidirectional output data.

enumerator kFLEXIO_PinConfigOutput: Pin output.

enum _flexio_pin_polarity

Definition of pin polarity.

Values:

enumerator kFLEXIO_PinActiveHigh: Active high.

enumerator kFLEXIO_PinActiveLow: Active low.

enum _flexio_timer_mode

Define type of timer work mode.

Values:

enumerator kFLEXIO_TimerModeDisabled: Timer Disabled.

enumerator kFLEXIO_TimerModeDual8BitBaudBit: Dual 8-bit counters baud/bit mode.

enumerator kFLEXIO_TimerModeDual8BitPWM: Dual 8-bit counters PWM mode.

enumerator kFLEXIO_TimerModeSingle16Bit: Single 16-bit counter mode.

enum _flexio_timer_output

Define type of timer initial output or timer reset condition.

Values:

enumerator kFLEXIO_TimerOutputOneNotAffectedByReset: Logic one when enabled and is not affected by timer reset.

enumerator kFLEXIO_TimerOutputZeroNotAffectedByReset: Logic zero when enabled and is not affected by timer reset.

enumerator kFLEXIO_TimerOutputOneAffectedByReset: Logic one when enabled and on timer reset.

enumerator kFLEXIO_TimerOutputZeroAffectedByReset: Logic zero when enabled and on timer reset.

enum _flexio_timer_decrement_source

Define type of timer decrement.

Values:

enumerator kFLEXIO_TimerDecSrcOnFlexIOClockShiftTimerOutput: Decrement counter on FlexIO clock, Shift clock equals Timer output.

enumerator kFLEXIO_TimerDecSrcOnTriggerInputShiftTimerOutput: Decrement counter on Trigger input (both edges), Shift clock equals Timer output.

enumerator kFLEXIO_TimerDecSrcOnPinInputShiftPinInput: Decrement counter on Pin input (both edges), Shift clock equals Pin input.

enumerator kFLEXIO_TimerDecSrcOnTriggerInputShiftTriggerInput: Decrement counter on Trigger input (both edges), Shift clock equals Trigger input.

enum _flexio_timer_reset_condition

Define type of timer reset condition.

Values:

enumerator kFLEXIO_TimerResetNever: Timer never reset.

enumerator kFLEXIO_TimerResetOnTimerPinEqualToTimerOutput: Timer reset on Timer Pin equal to Timer Output.

enumerator kFLEXIO_TimerResetOnTimerTriggerEqualToTimerOutput: Timer reset on Timer Trigger equal to Timer Output.

enumerator kFLEXIO_TimerResetOnTimerPinRisingEdge: Timer reset on Timer Pin rising edge.

enumerator kFLEXIO_TimerResetOnTimerTriggerRisingEdge: Timer reset on Trigger rising edge.

enumerator kFLEXIO_TimerResetOnTimerTriggerBothEdge: Timer reset on Trigger rising or falling edge.

enum _flexio_timer_disable_condition

Define type of timer disable condition.

Values:

enumerator kFLEXIO_TimerDisableNever: Timer never disabled.

enumerator kFLEXIO_TimerDisableOnPreTimerDisable: Timer disabled on Timer N-1 disable.

enumerator kFLEXIO_TimerDisableOnTimerCompare: Timer disabled on Timer compare.

enumerator kFLEXIO_TimerDisableOnTimerCompareTriggerLow: Timer disabled on Timer compare and Trigger Low.

enumerator kFLEXIO_TimerDisableOnPinBothEdge: Timer disabled on Pin rising or falling edge.

enumerator kFLEXIO_TimerDisableOnPinBothEdgeTriggerHigh: Timer disabled on Pin rising or falling edge provided Trigger is high.

enumerator kFLEXIO_TimerDisableOnTriggerFallingEdge: Timer disabled on Trigger falling edge.

enum _flexio_timer_enable_condition

Define type of timer enable condition.

Values:

enumerator kFLEXIO_TimerEnabledAlways: Timer always enabled.

enumerator kFLEXIO_TimerEnableOnPrevTimerEnable: Timer enabled on Timer N-1 enable.

enumerator kFLEXIO_TimerEnableOnTriggerHigh: Timer enabled on Trigger high.

enumerator kFLEXIO_TimerEnableOnTriggerHighPinHigh: Timer enabled on Trigger high and Pin high.

enumerator kFLEXIO_TimerEnableOnPinRisingEdge: Timer enabled on Pin rising edge.

enumerator kFLEXIO_TimerEnableOnPinRisingEdgeTriggerHigh: Timer enabled on Pin rising edge and Trigger high.

enumerator kFLEXIO_TimerEnableOnTriggerRisingEdge: Timer enabled on Trigger rising edge.

enumerator kFLEXIO_TimerEnableOnTriggerBothEdge: Timer enabled on Trigger rising or falling edge.

enum _flexio_timer_stop_bit_condition

Define type of timer stop bit generate condition.

Values:

enumerator kFLEXIO_TimerStopBitDisabled: Stop bit disabled.

enumerator kFLEXIO_TimerStopBitEnableOnTimerCompare: Stop bit is enabled on timer compare.

enumerator kFLEXIO_TimerStopBitEnableOnTimerDisable: Stop bit is enabled on timer disable.

enumerator kFLEXIO_TimerStopBitEnableOnTimerCompareDisable: Stop bit is enabled on timer compare and timer disable.

enum _flexio_timer_start_bit_condition

Define type of timer start bit generate condition.

Values:

enumerator kFLEXIO_TimerStartBitDisabled: Start bit disabled.

enumerator kFLEXIO_TimerStartBitEnabled: Start bit enabled.

enum _flexio_timer_output_state

FlexIO as PWM channel output state.

Values:

enumerator kFLEXIO_PwmLow: The output state of PWM channel is low

enumerator kFLEXIO_PwmHigh: The output state of PWM channel is high

enum _flexio_shifter_timer_polarity

Define type of timer polarity for shifter control.

Values:

enumerator kFLEXIO_ShifterTimerPolarityOnPositive: Shift on positive edge of shift clock.

enumerator kFLEXIO_ShifterTimerPolarityOnNegitive: Shift on negative edge of shift clock.

enum _flexio_shifter_mode

Define type of shifter working mode.

Values:

enumerator kFLEXIO_ShifterDisabled: Shifter is disabled.

enumerator kFLEXIO_ShifterModeReceive: Receive mode.

enumerator kFLEXIO_ShifterModeTransmit: Transmit mode.

enumerator kFLEXIO_ShifterModeMatchStore: Match store mode.

enumerator kFLEXIO_ShifterModeMatchContinuous: Match continuous mode.

enumerator kFLEXIO_ShifterModeState: SHIFTBUF contents are used for storing programmable state attributes.

enumerator kFLEXIO_ShifterModeLogic: SHIFTBUF contents are used for implementing programmable logic look up table.

enum _flexio_shifter_input_source

Define type of shifter input source.

Values:

enumerator kFLEXIO_ShifterInputFromPin: Shifter input from pin.

enumerator kFLEXIO_ShifterInputFromNextShifterOutput: Shifter input from Shifter N+1.

enum _flexio_shifter_stop_bit

Define of STOP bit configuration.

Values:

enumerator kFLEXIO_ShifterStopBitDisable: Disable shifter stop bit.

enumerator kFLEXIO_ShifterStopBitLow: Set shifter stop bit to logic low level.

enumerator kFLEXIO_ShifterStopBitHigh: Set shifter stop bit to logic high level.

enum _flexio_shifter_start_bit

Define type of START bit configuration.

Values:

enumerator kFLEXIO_ShifterStartBitDisabledLoadDataOnEnable: Disable shifter start bit, transmitter loads data on enable.

enumerator kFLEXIO_ShifterStartBitDisabledLoadDataOnShift: Disable shifter start bit, transmitter loads data on first shift.

enumerator kFLEXIO_ShifterStartBitLow: Set shifter start bit to logic low level.

enumerator kFLEXIO_ShifterStartBitHigh: Set shifter start bit to logic high level.

enum _flexio_shifter_buffer_type

Define FlexIO shifter buffer type.

Values:

enumerator kFLEXIO_ShifterBuffer: Shifter Buffer N Register.

enumerator kFLEXIO_ShifterBufferBitSwapped: Shifter Buffer N Bit Byte Swapped Register.

enumerator kFLEXIO_ShifterBufferByteSwapped: Shifter Buffer N Byte Swapped Register.

enumerator kFLEXIO_ShifterBufferBitByteSwapped: Shifter Buffer N Bit Swapped Register.

enumerator kFLEXIO_ShifterBufferNibbleByteSwapped: Shifter Buffer N Nibble Byte Swapped Register.

enumerator kFLEXIO_ShifterBufferHalfWordSwapped: Shifter Buffer N Half Word Swapped Register.

enumerator kFLEXIO_ShifterBufferNibbleSwapped: Shifter Buffer N Nibble Swapped Register.

typedef enum _flexio_timer_trigger_polarity flexio_timer_trigger_polarity_t: Define time of timer trigger polarity.

typedef enum _flexio_timer_trigger_source flexio_timer_trigger_source_t: Define type of timer trigger source.

typedef enum _flexio_pin_config flexio_pin_config_t: Define type of timer/shifter pin configuration.

typedef enum _flexio_pin_polarity flexio_pin_polarity_t: Definition of pin polarity.

typedef enum _flexio_timer_mode flexio_timer_mode_t: Define type of timer work mode.

typedef enum _flexio_timer_output flexio_timer_output_t: Define type of timer initial output or timer reset condition.

typedef enum _flexio_timer_decrement_source flexio_timer_decrement_source_t: Define type of timer decrement.

typedef enum _flexio_timer_reset_condition flexio_timer_reset_condition_t: Define type of timer reset condition.

typedef enum _flexio_timer_disable_condition flexio_timer_disable_condition_t: Define type of timer disable condition.

typedef enum _flexio_timer_enable_condition flexio_timer_enable_condition_t: Define type of timer enable condition.

typedef enum _flexio_timer_stop_bit_condition flexio_timer_stop_bit_condition_t: Define type of timer stop bit generate condition.

typedef enum _flexio_timer_start_bit_condition flexio_timer_start_bit_condition_t: Define type of timer start bit generate condition.

typedef enum _flexio_timer_output_state flexio_timer_output_state_t: FlexIO as PWM channel output state.

typedef enum _flexio_shifter_timer_polarity flexio_shifter_timer_polarity_t: Define type of timer polarity for shifter control.

typedef enum _flexio_shifter_mode flexio_shifter_mode_t: Define type of shifter working mode.

typedef enum _flexio_shifter_input_source flexio_shifter_input_source_t: Define type of shifter input source.

typedef enum _flexio_shifter_stop_bit flexio_shifter_stop_bit_t: Define of STOP bit configuration.

typedef enum _flexio_shifter_start_bit flexio_shifter_start_bit_t: Define type of START bit configuration.

typedef enum _flexio_shifter_buffer_type flexio_shifter_buffer_type_t: Define FlexIO shifter buffer type.

typedef struct _flexio_config_ flexio_config_t: Define FlexIO user configuration structure.

typedef struct _flexio_timer_config flexio_timer_config_t: Define FlexIO timer configuration structure.

typedef struct _flexio_shifter_config flexio_shifter_config_t: Define FlexIO shifter configuration structure.

typedef void (*flexio_isr_t)(void *base, void *handle): typedef for FlexIO simulated driver interrupt handler.

FLEXIO_Type *const s_flexioBases[]: Pointers to flexio bases for each instance.

const clock_ip_name_t s_flexioClocks[]: Pointers to flexio clocks for each instance.

FLEXIO_TIMER_TRIGGER_SEL_PININPUT(x): Calculate FlexIO timer trigger.

FLEXIO_TIMER_TRIGGER_SEL_SHIFTnSTAT(x)

FLEXIO_TIMER_TRIGGER_SEL_TIMn(x)

struct _flexio_config_

#include <fsl_flexio.h>

Define FlexIO user configuration structure.

Public Members

bool enableFlexio: Enable/disable FlexIO module

bool enableInDoze: Enable/disable FlexIO operation in doze mode

bool enableInDebug: Enable/disable FlexIO operation in debug mode

bool enableFastAccess: Enable/disable fast access to FlexIO registers, fast access requires the FlexIO clock to be at least twice the frequency of the bus clock.

struct _flexio_timer_config

#include <fsl_flexio.h>

Define FlexIO timer configuration structure.

Public Members

uint32_t triggerSelect: The internal trigger selection number using MACROs.

flexio_timer_trigger_polarity_t triggerPolarity: Trigger Polarity.

flexio_timer_trigger_source_t triggerSource: Trigger Source, internal (see ‘trgsel’) or external.

flexio_pin_config_t pinConfig: Timer Pin Configuration.

uint32_t pinSelect: Timer Pin number Select.

flexio_pin_polarity_t pinPolarity: Timer Pin Polarity.

flexio_timer_mode_t timerMode: Timer work Mode.

flexio_timer_output_t timerOutput: Configures the initial state of the Timer Output and whether it is affected by the Timer reset.

flexio_timer_decrement_source_t timerDecrement: Configures the source of the Timer decrement and the source of the Shift clock.

flexio_timer_reset_condition_t timerReset: Configures the condition that causes the timer counter (and optionally the timer output) to be reset.

flexio_timer_disable_condition_t timerDisable: Configures the condition that causes the Timer to be disabled and stop decrementing.

flexio_timer_enable_condition_t timerEnable: Configures the condition that causes the Timer to be enabled and start decrementing.

flexio_timer_stop_bit_condition_t timerStop: Timer STOP Bit generation.

flexio_timer_start_bit_condition_t timerStart: Timer STRAT Bit generation.

uint32_t timerCompare: Value for Timer Compare N Register.

struct _flexio_shifter_config

#include <fsl_flexio.h>

Define FlexIO shifter configuration structure.

Public Members

uint32_t timerSelect: Selects which Timer is used for controlling the logic/shift register and generating the Shift clock.

flexio_shifter_timer_polarity_t timerPolarity: Timer Polarity.

flexio_pin_config_t pinConfig: Shifter Pin Configuration.

uint32_t pinSelect: Shifter Pin number Select.

flexio_pin_polarity_t pinPolarity: Shifter Pin Polarity.

flexio_shifter_mode_t shifterMode: Configures the mode of the Shifter.

uint32_t parallelWidth: Configures the parallel width when using parallel mode.

flexio_shifter_input_source_t inputSource: Selects the input source for the shifter.

flexio_shifter_stop_bit_t shifterStop: Shifter STOP bit.

flexio_shifter_start_bit_t shifterStart: Shifter START bit.

FlexIO I2C Master Driver

status_t FLEXIO_I2C_CheckForBusyBus(FLEXIO_I2C_Type *base)

Make sure the bus isn’t already pulled down.

Check the FLEXIO pin status to see whether either of SDA and SCL pin is pulled down.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure..

Return values:

kStatus_Success –
kStatus_FLEXIO_I2C_Busy –

status_t FLEXIO_I2C_MasterInit(FLEXIO_I2C_Type *base, flexio_i2c_master_config_t *masterConfig, uint32_t srcClock_Hz)

Ungates the FlexIO clock, resets the FlexIO module, and configures the FlexIO I2C hardware configuration.

Example

FLEXIO_I2C_Type base = {
.flexioBase = FLEXIO,
.SDAPinIndex = 0,
.SCLPinIndex = 1,
.shifterIndex = {0,1},
.timerIndex = {0,1}
};
flexio_i2c_master_config_t config = {
.enableInDoze = false,
.enableInDebug = true,
.enableFastAccess = false,
.baudRate_Bps = 100000
};
FLEXIO_I2C_MasterInit(base, &config, srcClock_Hz);

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
masterConfig – Pointer to flexio_i2c_master_config_t structure.
srcClock_Hz – FlexIO source clock in Hz.

Return values:

kStatus_Success – Initialization successful
kStatus_InvalidArgument – The source clock exceed upper range limitation

void FLEXIO_I2C_MasterDeinit(FLEXIO_I2C_Type *base)

De-initializes the FlexIO I2C master peripheral. Calling this API Resets the FlexIO I2C master shifer and timer config, module can’t work unless the FLEXIO_I2C_MasterInit is called.

Parameters:

base – pointer to FLEXIO_I2C_Type structure.

void FLEXIO_I2C_MasterGetDefaultConfig(flexio_i2c_master_config_t *masterConfig)

Gets the default configuration to configure the FlexIO module. The configuration can be used directly for calling the FLEXIO_I2C_MasterInit().

Example:

flexio_i2c_master_config_t config;
FLEXIO_I2C_MasterGetDefaultConfig(&config);

Parameters:

masterConfig – Pointer to flexio_i2c_master_config_t structure.

static inline void FLEXIO_I2C_MasterEnable(FLEXIO_I2C_Type *base, bool enable)

Enables/disables the FlexIO module operation.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
enable – Pass true to enable module, false does not have any effect.

uint32_t FLEXIO_I2C_MasterGetStatusFlags(FLEXIO_I2C_Type *base)

Gets the FlexIO I2C master status flags.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure

Returns:

Status flag, use status flag to AND _flexio_i2c_master_status_flags can get the related status.

void FLEXIO_I2C_MasterClearStatusFlags(FLEXIO_I2C_Type *base, uint32_t mask)

Clears the FlexIO I2C master status flags.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
mask – Status flag. The parameter can be any combination of the following values:
- kFLEXIO_I2C_RxFullFlag
- kFLEXIO_I2C_ReceiveNakFlag

void FLEXIO_I2C_MasterEnableInterrupts(FLEXIO_I2C_Type *base, uint32_t mask)

Enables the FlexIO i2c master interrupt requests.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
mask – Interrupt source. Currently only one interrupt request source:
- kFLEXIO_I2C_TransferCompleteInterruptEnable

void FLEXIO_I2C_MasterDisableInterrupts(FLEXIO_I2C_Type *base, uint32_t mask)

Disables the FlexIO I2C master interrupt requests.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
mask – Interrupt source.

void FLEXIO_I2C_MasterSetBaudRate(FLEXIO_I2C_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz)

Sets the FlexIO I2C master transfer baudrate.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure
baudRate_Bps – the baud rate value in HZ
srcClock_Hz – source clock in HZ

void FLEXIO_I2C_MasterStart(FLEXIO_I2C_Type *base, uint8_t address, flexio_i2c_direction_t direction)

Sends START + 7-bit address to the bus.

Note

This API should be called when the transfer configuration is ready to send a START signal and 7-bit address to the bus. This is a non-blocking API, which returns directly after the address is put into the data register but the address transfer is not finished on the bus. Ensure that the kFLEXIO_I2C_RxFullFlag status is asserted before calling this API.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
address – 7-bit address.
direction – transfer direction. This parameter is one of the values in flexio_i2c_direction_t:
- kFLEXIO_I2C_Write: Transmit
- kFLEXIO_I2C_Read: Receive

void FLEXIO_I2C_MasterStop(FLEXIO_I2C_Type *base)

Sends the stop signal on the bus.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.

void FLEXIO_I2C_MasterRepeatedStart(FLEXIO_I2C_Type *base)

Sends the repeated start signal on the bus.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.

void FLEXIO_I2C_MasterAbortStop(FLEXIO_I2C_Type *base)

Sends the stop signal when transfer is still on-going.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.

void FLEXIO_I2C_MasterEnableAck(FLEXIO_I2C_Type *base, bool enable)

Configures the sent ACK/NAK for the following byte.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
enable – True to configure send ACK, false configure to send NAK.

status_t FLEXIO_I2C_MasterSetTransferCount(FLEXIO_I2C_Type *base, uint16_t count)

Sets the number of bytes to be transferred from a start signal to a stop signal.

Note

Call this API before a transfer begins because the timer generates a number of clocks according to the number of bytes that need to be transferred.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
count – Number of bytes need to be transferred from a start signal to a re-start/stop signal

Return values:

kStatus_Success – Successfully configured the count.
kStatus_InvalidArgument – Input argument is invalid.

static inline void FLEXIO_I2C_MasterWriteByte(FLEXIO_I2C_Type *base, uint32_t data)

Writes one byte of data to the I2C bus.

Note

This is a non-blocking API, which returns directly after the data is put into the data register but the data transfer is not finished on the bus. Ensure that the TxEmptyFlag is asserted before calling this API.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
data – a byte of data.

static inline uint8_t FLEXIO_I2C_MasterReadByte(FLEXIO_I2C_Type *base)

Reads one byte of data from the I2C bus.

Note

This is a non-blocking API, which returns directly after the data is read from the data register. Ensure that the data is ready in the register.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.

Returns:

data byte read.

status_t FLEXIO_I2C_MasterWriteBlocking(FLEXIO_I2C_Type *base, const uint8_t *txBuff, uint8_t txSize)

Sends a buffer of data in bytes.

Note

This function blocks via polling until all bytes have been sent.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
txBuff – The data bytes to send.
txSize – The number of data bytes to send.

Return values:

kStatus_Success – Successfully write data.
kStatus_FLEXIO_I2C_Nak – Receive NAK during writing data.
kStatus_FLEXIO_I2C_Timeout – Timeout polling status flags.

status_t FLEXIO_I2C_MasterReadBlocking(FLEXIO_I2C_Type *base, uint8_t *rxBuff, uint8_t rxSize)

Receives a buffer of bytes.

Note

This function blocks via polling until all bytes have been received.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
rxBuff – The buffer to store the received bytes.
rxSize – The number of data bytes to be received.

Return values:

kStatus_Success – Successfully read data.
kStatus_FLEXIO_I2C_Timeout – Timeout polling status flags.

status_t FLEXIO_I2C_MasterTransferBlocking(FLEXIO_I2C_Type *base, flexio_i2c_master_transfer_t *xfer)

Performs a master polling transfer on the I2C bus.

Note

The API does not return until the transfer succeeds or fails due to receiving NAK.

Parameters:

base – pointer to FLEXIO_I2C_Type structure.
xfer – pointer to flexio_i2c_master_transfer_t structure.

Returns:

status of status_t.

status_t FLEXIO_I2C_MasterTransferCreateHandle(FLEXIO_I2C_Type *base, flexio_i2c_master_handle_t *handle, flexio_i2c_master_transfer_callback_t callback, void *userData)

Initializes the I2C handle which is used in transactional functions.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
handle – Pointer to flexio_i2c_master_handle_t structure to store the transfer state.
callback – Pointer to user callback function.
userData – User param passed to the callback function.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_OutOfRange – The FlexIO type/handle/isr table out of range.

status_t FLEXIO_I2C_MasterTransferNonBlocking(FLEXIO_I2C_Type *base, flexio_i2c_master_handle_t *handle, flexio_i2c_master_transfer_t *xfer)

Performs a master interrupt non-blocking transfer on the I2C bus.

Note

The API returns immediately after the transfer initiates. Call FLEXIO_I2C_MasterTransferGetCount to poll the transfer status to check whether the transfer is finished. If the return status is not kStatus_FLEXIO_I2C_Busy, the transfer is finished.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure
handle – Pointer to flexio_i2c_master_handle_t structure which stores the transfer state
xfer – pointer to flexio_i2c_master_transfer_t structure

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_FLEXIO_I2C_Busy – FlexIO I2C is not idle, is running another transfer.

status_t FLEXIO_I2C_MasterTransferGetCount(FLEXIO_I2C_Type *base, flexio_i2c_master_handle_t *handle, size_t *count)

Gets the master transfer status during a interrupt non-blocking transfer.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure.
handle – Pointer to flexio_i2c_master_handle_t structure which stores the transfer state.
count – Number of bytes transferred so far by the non-blocking transaction.

Return values:

kStatus_InvalidArgument – count is Invalid.
kStatus_NoTransferInProgress – There is not a non-blocking transaction currently in progress.
kStatus_Success – Successfully return the count.

void FLEXIO_I2C_MasterTransferAbort(FLEXIO_I2C_Type *base, flexio_i2c_master_handle_t *handle)

Aborts an interrupt non-blocking transfer early.

Note

This API can be called at any time when an interrupt non-blocking transfer initiates to abort the transfer early.

Parameters:

base – Pointer to FLEXIO_I2C_Type structure
handle – Pointer to flexio_i2c_master_handle_t structure which stores the transfer state

void FLEXIO_I2C_MasterTransferHandleIRQ(void *i2cType, void *i2cHandle)

Master interrupt handler.

Parameters:

i2cType – Pointer to FLEXIO_I2C_Type structure
i2cHandle – Pointer to flexio_i2c_master_transfer_t structure

FSL_FLEXIO_I2C_MASTER_DRIVER_VERSION

FlexIO I2C transfer status.

Values:

enumerator kStatus_FLEXIO_I2C_Busy: I2C is busy doing transfer.

enumerator kStatus_FLEXIO_I2C_Idle: I2C is busy doing transfer.

enumerator kStatus_FLEXIO_I2C_Nak: NAK received during transfer.

enumerator kStatus_FLEXIO_I2C_Timeout: Timeout polling status flags.

enum _flexio_i2c_master_interrupt

Define FlexIO I2C master interrupt mask.

Values:

enumerator kFLEXIO_I2C_TxEmptyInterruptEnable: Tx buffer empty interrupt enable.

enumerator kFLEXIO_I2C_RxFullInterruptEnable: Rx buffer full interrupt enable.

enum _flexio_i2c_master_status_flags

Define FlexIO I2C master status mask.

Values:

enumerator kFLEXIO_I2C_TxEmptyFlag: Tx shifter empty flag.

enumerator kFLEXIO_I2C_RxFullFlag: Rx shifter full/Transfer complete flag.

enumerator kFLEXIO_I2C_ReceiveNakFlag: Receive NAK flag.

enum _flexio_i2c_direction

Direction of master transfer.

Values:

enumerator kFLEXIO_I2C_Write: Master send to slave.

enumerator kFLEXIO_I2C_Read: Master receive from slave.

typedef enum _flexio_i2c_direction flexio_i2c_direction_t: Direction of master transfer.

typedef struct _flexio_i2c_type FLEXIO_I2C_Type: Define FlexIO I2C master access structure typedef.

typedef struct _flexio_i2c_master_config flexio_i2c_master_config_t: Define FlexIO I2C master user configuration structure.

typedef struct _flexio_i2c_master_transfer flexio_i2c_master_transfer_t: Define FlexIO I2C master transfer structure.

typedef struct _flexio_i2c_master_handle flexio_i2c_master_handle_t: FlexIO I2C master handle typedef.

typedef void (*flexio_i2c_master_transfer_callback_t)(FLEXIO_I2C_Type *base, flexio_i2c_master_handle_t *handle, status_t status, void *userData): FlexIO I2C master transfer callback typedef.

I2C_RETRY_TIMES: Retry times for waiting flag.

struct _flexio_i2c_type

#include <fsl_flexio_i2c_master.h>

Define FlexIO I2C master access structure typedef.

Public Members

FLEXIO_Type *flexioBase: FlexIO base pointer.

uint8_t SDAPinIndex: Pin select for I2C SDA.

uint8_t SCLPinIndex: Pin select for I2C SCL.

uint8_t shifterIndex[2]: Shifter index used in FlexIO I2C.

uint8_t timerIndex[3]: Timer index used in FlexIO I2C.

uint32_t baudrate: Master transfer baudrate, used to calculate delay time.

struct _flexio_i2c_master_config

#include <fsl_flexio_i2c_master.h>

Define FlexIO I2C master user configuration structure.

Public Members

bool enableMaster: Enables the FlexIO I2C peripheral at initialization time.

bool enableInDoze: Enable/disable FlexIO operation in doze mode.

bool enableInDebug: Enable/disable FlexIO operation in debug mode.

bool enableFastAccess: Enable/disable fast access to FlexIO registers, fast access requires the FlexIO clock to be at least twice the frequency of the bus clock.

uint32_t baudRate_Bps: Baud rate in Bps.

struct _flexio_i2c_master_transfer

#include <fsl_flexio_i2c_master.h>

Define FlexIO I2C master transfer structure.

Public Members

uint32_t flags: Transfer flag which controls the transfer, reserved for FlexIO I2C.

uint8_t slaveAddress: 7-bit slave address.

flexio_i2c_direction_t direction: Transfer direction, read or write.

uint32_t subaddress: Sub address. Transferred MSB first.

uint8_t subaddressSize: Size of command buffer.

uint8_t volatile *data: Transfer buffer.

volatile size_t dataSize: Transfer size.

struct _flexio_i2c_master_handle

#include <fsl_flexio_i2c_master.h>

Define FlexIO I2C master handle structure.

Public Members

flexio_i2c_master_transfer_t transfer: FlexIO I2C master transfer copy.

size_t transferSize: Total bytes to be transferred.

uint8_t state: Transfer state maintained during transfer.

flexio_i2c_master_transfer_callback_t completionCallback: Callback function called at transfer event. Callback function called at transfer event.

void *userData: Callback parameter passed to callback function.

bool needRestart: Whether master needs to send re-start signal.

FlexIO I2S Driver

void FLEXIO_I2S_Init(FLEXIO_I2S_Type *base, const flexio_i2s_config_t *config)

Initializes the FlexIO I2S.

This API configures FlexIO pins and shifter to I2S and configures the FlexIO I2S with a configuration structure. The configuration structure can be filled by the user, or be set with default values by FLEXIO_I2S_GetDefaultConfig().

Note

This API should be called at the beginning of the application to use the FlexIO I2S driver. Otherwise, any access to the FlexIO I2S module can cause hard fault because the clock is not enabled.

Parameters:

base – FlexIO I2S base pointer
config – FlexIO I2S configure structure.

void FLEXIO_I2S_GetDefaultConfig(flexio_i2s_config_t *config)

Sets the FlexIO I2S configuration structure to default values.

The purpose of this API is to get the configuration structure initialized for use in FLEXIO_I2S_Init(). Users may use the initialized structure unchanged in FLEXIO_I2S_Init() or modify some fields of the structure before calling FLEXIO_I2S_Init().

Parameters:

config – pointer to master configuration structure

void FLEXIO_I2S_Deinit(FLEXIO_I2S_Type *base)

De-initializes the FlexIO I2S.

Calling this API resets the FlexIO I2S shifter and timer config. After calling this API, call the FLEXO_I2S_Init to use the FlexIO I2S module.

Parameters:

base – FlexIO I2S base pointer

static inline void FLEXIO_I2S_Enable(FLEXIO_I2S_Type *base, bool enable)

Enables/disables the FlexIO I2S module operation.

Parameters:

base – Pointer to FLEXIO_I2S_Type
enable – True to enable, false dose not have any effect.

uint32_t FLEXIO_I2S_GetStatusFlags(FLEXIO_I2S_Type *base)

Gets the FlexIO I2S status flags.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure

Returns:

Status flag, which are ORed by the enumerators in the _flexio_i2s_status_flags.

void FLEXIO_I2S_EnableInterrupts(FLEXIO_I2S_Type *base, uint32_t mask)

Enables the FlexIO I2S interrupt.

This function enables the FlexIO UART interrupt.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure
mask – interrupt source

void FLEXIO_I2S_DisableInterrupts(FLEXIO_I2S_Type *base, uint32_t mask)

Disables the FlexIO I2S interrupt.

This function enables the FlexIO UART interrupt.

Parameters:

base – pointer to FLEXIO_I2S_Type structure
mask – interrupt source

static inline void FLEXIO_I2S_TxEnableDMA(FLEXIO_I2S_Type *base, bool enable)

Enables/disables the FlexIO I2S Tx DMA requests.

Parameters:

base – FlexIO I2S base pointer
enable – True means enable DMA, false means disable DMA.

static inline void FLEXIO_I2S_RxEnableDMA(FLEXIO_I2S_Type *base, bool enable)

Enables/disables the FlexIO I2S Rx DMA requests.

Parameters:

base – FlexIO I2S base pointer
enable – True means enable DMA, false means disable DMA.

static inline uint32_t FLEXIO_I2S_TxGetDataRegisterAddress(FLEXIO_I2S_Type *base)

Gets the FlexIO I2S send data register address.

This function returns the I2S data register address, mainly used by DMA/eDMA.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure

Returns:

FlexIO i2s send data register address.

static inline uint32_t FLEXIO_I2S_RxGetDataRegisterAddress(FLEXIO_I2S_Type *base)

Gets the FlexIO I2S receive data register address.

This function returns the I2S data register address, mainly used by DMA/eDMA.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure

Returns:

FlexIO i2s receive data register address.

void FLEXIO_I2S_MasterSetFormat(FLEXIO_I2S_Type *base, flexio_i2s_format_t *format, uint32_t srcClock_Hz)

Configures the FlexIO I2S audio format in master mode.

Audio format can be changed in run-time of FlexIO I2S. This function configures the sample rate and audio data format to be transferred.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure
format – Pointer to FlexIO I2S audio data format structure.
srcClock_Hz – I2S master clock source frequency in Hz.

void FLEXIO_I2S_SlaveSetFormat(FLEXIO_I2S_Type *base, flexio_i2s_format_t *format)

Configures the FlexIO I2S audio format in slave mode.

Audio format can be changed in run-time of FlexIO I2S. This function configures the sample rate and audio data format to be transferred.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure
format – Pointer to FlexIO I2S audio data format structure.

status_t FLEXIO_I2S_WriteBlocking(FLEXIO_I2S_Type *base, uint8_t bitWidth, uint8_t *txData, size_t size)

Sends data using a blocking method.

Note

This function blocks via polling until data is ready to be sent.

Parameters:

base – FlexIO I2S base pointer.
bitWidth – How many bits in a audio word, usually 8/16/24/32 bits.
txData – Pointer to the data to be written.
size – Bytes to be written.

Return values:

kStatus_Success – Successfully write data.
kStatus_FLEXIO_I2C_Timeout – Timeout polling status flags.

static inline void FLEXIO_I2S_WriteData(FLEXIO_I2S_Type *base, uint8_t bitWidth, uint32_t data)

Writes data into a data register.

Parameters:

base – FlexIO I2S base pointer.
bitWidth – How many bits in a audio word, usually 8/16/24/32 bits.
data – Data to be written.

status_t FLEXIO_I2S_ReadBlocking(FLEXIO_I2S_Type *base, uint8_t bitWidth, uint8_t *rxData, size_t size)

Receives a piece of data using a blocking method.

Note

This function blocks via polling until data is ready to be sent.

Parameters:

base – FlexIO I2S base pointer
bitWidth – How many bits in a audio word, usually 8/16/24/32 bits.
rxData – Pointer to the data to be read.
size – Bytes to be read.

Return values:

kStatus_Success – Successfully read data.
kStatus_FLEXIO_I2C_Timeout – Timeout polling status flags.

static inline uint32_t FLEXIO_I2S_ReadData(FLEXIO_I2S_Type *base)

Reads a data from the data register.

Parameters:

base – FlexIO I2S base pointer

Returns:

Data read from data register.

void FLEXIO_I2S_TransferTxCreateHandle(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, flexio_i2s_callback_t callback, void *userData)

Initializes the FlexIO I2S handle.

This function initializes the FlexIO I2S handle which can be used for other FlexIO I2S transactional APIs. Call this API once to get the initialized handle.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure
handle – Pointer to flexio_i2s_handle_t structure to store the transfer state.
callback – FlexIO I2S callback function, which is called while finished a block.
userData – User parameter for the FlexIO I2S callback.

void FLEXIO_I2S_TransferSetFormat(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, flexio_i2s_format_t *format, uint32_t srcClock_Hz)

Configures the FlexIO I2S audio format.

Audio format can be changed at run-time of FlexIO I2S. This function configures the sample rate and audio data format to be transferred.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure.
handle – FlexIO I2S handle pointer.
format – Pointer to audio data format structure.
srcClock_Hz – FlexIO I2S bit clock source frequency in Hz. This parameter should be 0 while in slave mode.

void FLEXIO_I2S_TransferRxCreateHandle(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, flexio_i2s_callback_t callback, void *userData)

Initializes the FlexIO I2S receive handle.

This function initializes the FlexIO I2S handle which can be used for other FlexIO I2S transactional APIs. Call this API once to get the initialized handle.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure.
handle – Pointer to flexio_i2s_handle_t structure to store the transfer state.
callback – FlexIO I2S callback function, which is called while finished a block.
userData – User parameter for the FlexIO I2S callback.

status_t FLEXIO_I2S_TransferSendNonBlocking(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, flexio_i2s_transfer_t *xfer)

Performs an interrupt non-blocking send transfer on FlexIO I2S.

Note

The API returns immediately after transfer initiates. Call FLEXIO_I2S_GetRemainingBytes to poll the transfer status and check whether the transfer is finished. If the return status is 0, the transfer is finished.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure.
handle – Pointer to flexio_i2s_handle_t structure which stores the transfer state
xfer – Pointer to flexio_i2s_transfer_t structure

Return values:

kStatus_Success – Successfully start the data transmission.
kStatus_FLEXIO_I2S_TxBusy – Previous transmission still not finished, data not all written to TX register yet.
kStatus_InvalidArgument – The input parameter is invalid.

status_t FLEXIO_I2S_TransferReceiveNonBlocking(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, flexio_i2s_transfer_t *xfer)

Performs an interrupt non-blocking receive transfer on FlexIO I2S.

Note

The API returns immediately after transfer initiates. Call FLEXIO_I2S_GetRemainingBytes to poll the transfer status to check whether the transfer is finished. If the return status is 0, the transfer is finished.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure.
handle – Pointer to flexio_i2s_handle_t structure which stores the transfer state
xfer – Pointer to flexio_i2s_transfer_t structure

Return values:

kStatus_Success – Successfully start the data receive.
kStatus_FLEXIO_I2S_RxBusy – Previous receive still not finished.
kStatus_InvalidArgument – The input parameter is invalid.

void FLEXIO_I2S_TransferAbortSend(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle)

Aborts the current send.

Note

This API can be called at any time when interrupt non-blocking transfer initiates to abort the transfer in a early time.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure.
handle – Pointer to flexio_i2s_handle_t structure which stores the transfer state

void FLEXIO_I2S_TransferAbortReceive(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle)

Aborts the current receive.

Note

This API can be called at any time when interrupt non-blocking transfer initiates to abort the transfer in a early time.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure.
handle – Pointer to flexio_i2s_handle_t structure which stores the transfer state

status_t FLEXIO_I2S_TransferGetSendCount(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, size_t *count)

Gets the remaining bytes to be sent.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure.
handle – Pointer to flexio_i2s_handle_t structure which stores the transfer state
count – Bytes sent.

Return values:

kStatus_Success – Succeed get the transfer count.
kStatus_NoTransferInProgress – There is not a non-blocking transaction currently in progress.

status_t FLEXIO_I2S_TransferGetReceiveCount(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, size_t *count)

Gets the remaining bytes to be received.

Parameters:

base – Pointer to FLEXIO_I2S_Type structure.
handle – Pointer to flexio_i2s_handle_t structure which stores the transfer state
count – Bytes recieved.

Return values:

kStatus_Success – Succeed get the transfer count.
kStatus_NoTransferInProgress – There is not a non-blocking transaction currently in progress.

Returns:

count Bytes received.

void FLEXIO_I2S_TransferTxHandleIRQ(void *i2sBase, void *i2sHandle)

Tx interrupt handler.

Parameters:

i2sBase – Pointer to FLEXIO_I2S_Type structure.
i2sHandle – Pointer to flexio_i2s_handle_t structure

void FLEXIO_I2S_TransferRxHandleIRQ(void *i2sBase, void *i2sHandle)

Rx interrupt handler.

Parameters:

i2sBase – Pointer to FLEXIO_I2S_Type structure.
i2sHandle – Pointer to flexio_i2s_handle_t structure.

FSL_FLEXIO_I2S_DRIVER_VERSION: FlexIO I2S driver version 2.2.0.

FlexIO I2S transfer status.

Values:

enumerator kStatus_FLEXIO_I2S_Idle: FlexIO I2S is in idle state

enumerator kStatus_FLEXIO_I2S_TxBusy: FlexIO I2S Tx is busy

enumerator kStatus_FLEXIO_I2S_RxBusy: FlexIO I2S Tx is busy

enumerator kStatus_FLEXIO_I2S_Error: FlexIO I2S error occurred

enumerator kStatus_FLEXIO_I2S_QueueFull: FlexIO I2S transfer queue is full.

enumerator kStatus_FLEXIO_I2S_Timeout: FlexIO I2S timeout polling status flags.

enum _flexio_i2s_master_slave

Master or slave mode.

Values:

enumerator kFLEXIO_I2S_Master: Master mode

enumerator kFLEXIO_I2S_Slave: Slave mode

_flexio_i2s_interrupt_enable Define FlexIO FlexIO I2S interrupt mask.

Values:

enumerator kFLEXIO_I2S_TxDataRegEmptyInterruptEnable: Transmit buffer empty interrupt enable.

enumerator kFLEXIO_I2S_RxDataRegFullInterruptEnable: Receive buffer full interrupt enable.

_flexio_i2s_status_flags Define FlexIO FlexIO I2S status mask.

Values:

enumerator kFLEXIO_I2S_TxDataRegEmptyFlag: Transmit buffer empty flag.

enumerator kFLEXIO_I2S_RxDataRegFullFlag: Receive buffer full flag.

enum _flexio_i2s_sample_rate

Audio sample rate.

Values:

enumerator kFLEXIO_I2S_SampleRate8KHz: Sample rate 8000Hz

enumerator kFLEXIO_I2S_SampleRate11025Hz: Sample rate 11025Hz

enumerator kFLEXIO_I2S_SampleRate12KHz: Sample rate 12000Hz

enumerator kFLEXIO_I2S_SampleRate16KHz: Sample rate 16000Hz

enumerator kFLEXIO_I2S_SampleRate22050Hz: Sample rate 22050Hz

enumerator kFLEXIO_I2S_SampleRate24KHz: Sample rate 24000Hz

enumerator kFLEXIO_I2S_SampleRate32KHz: Sample rate 32000Hz

enumerator kFLEXIO_I2S_SampleRate44100Hz: Sample rate 44100Hz

enumerator kFLEXIO_I2S_SampleRate48KHz: Sample rate 48000Hz

enumerator kFLEXIO_I2S_SampleRate96KHz: Sample rate 96000Hz

enum _flexio_i2s_word_width

Audio word width.

Values:

enumerator kFLEXIO_I2S_WordWidth8bits: Audio data width 8 bits

enumerator kFLEXIO_I2S_WordWidth16bits: Audio data width 16 bits

enumerator kFLEXIO_I2S_WordWidth24bits: Audio data width 24 bits

enumerator kFLEXIO_I2S_WordWidth32bits: Audio data width 32 bits

typedef struct _flexio_i2s_type FLEXIO_I2S_Type: Define FlexIO I2S access structure typedef.

typedef enum _flexio_i2s_master_slave flexio_i2s_master_slave_t: Master or slave mode.

typedef struct _flexio_i2s_config flexio_i2s_config_t: FlexIO I2S configure structure.

typedef struct _flexio_i2s_format flexio_i2s_format_t: FlexIO I2S audio format, FlexIO I2S only support the same format in Tx and Rx.

typedef enum _flexio_i2s_sample_rate flexio_i2s_sample_rate_t: Audio sample rate.

typedef enum _flexio_i2s_word_width flexio_i2s_word_width_t: Audio word width.

typedef struct _flexio_i2s_transfer flexio_i2s_transfer_t: Define FlexIO I2S transfer structure.

typedef struct _flexio_i2s_handle flexio_i2s_handle_t

typedef void (*flexio_i2s_callback_t)(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, status_t status, void *userData): FlexIO I2S xfer callback prototype.

I2S_RETRY_TIMES: Retry times for waiting flag.

FLEXIO_I2S_XFER_QUEUE_SIZE: FlexIO I2S transfer queue size, user can refine it according to use case.

struct _flexio_i2s_type

#include <fsl_flexio_i2s.h>

Define FlexIO I2S access structure typedef.

Public Members

FLEXIO_Type *flexioBase: FlexIO base pointer

uint8_t txPinIndex: Tx data pin index in FlexIO pins

uint8_t rxPinIndex: Rx data pin index

uint8_t bclkPinIndex: Bit clock pin index

uint8_t fsPinIndex: Frame sync pin index

uint8_t txShifterIndex: Tx data shifter index

uint8_t rxShifterIndex: Rx data shifter index

uint8_t bclkTimerIndex: Bit clock timer index

uint8_t fsTimerIndex: Frame sync timer index

struct _flexio_i2s_config

#include <fsl_flexio_i2s.h>

FlexIO I2S configure structure.

Public Members

bool enableI2S: Enable FlexIO I2S

flexio_i2s_master_slave_t masterSlave: Master or slave

flexio_pin_polarity_t txPinPolarity: Tx data pin polarity, active high or low

flexio_pin_polarity_t rxPinPolarity: Rx data pin polarity

flexio_pin_polarity_t bclkPinPolarity: Bit clock pin polarity

flexio_pin_polarity_t fsPinPolarity: Frame sync pin polarity

flexio_shifter_timer_polarity_t txTimerPolarity: Tx data valid on bclk rising or falling edge

flexio_shifter_timer_polarity_t rxTimerPolarity: Rx data valid on bclk rising or falling edge

struct _flexio_i2s_format

#include <fsl_flexio_i2s.h>

FlexIO I2S audio format, FlexIO I2S only support the same format in Tx and Rx.

Public Members

uint8_t bitWidth: Bit width of audio data, always 8/16/24/32 bits

uint32_t sampleRate_Hz: Sample rate of the audio data

struct _flexio_i2s_transfer

#include <fsl_flexio_i2s.h>

Define FlexIO I2S transfer structure.

Public Members

uint8_t *data: Data buffer start pointer

size_t dataSize: Bytes to be transferred.

struct _flexio_i2s_handle

#include <fsl_flexio_i2s.h>

Define FlexIO I2S handle structure.

Public Members

uint32_t state: Internal state

flexio_i2s_callback_t callback: Callback function called at transfer event

void *userData: Callback parameter passed to callback function

uint8_t bitWidth: Bit width for transfer, 8/16/24/32bits

flexio_i2s_transfer_t queue[(4U)]: Transfer queue storing queued transfer

size_t transferSize[(4U)]: Data bytes need to transfer

volatile uint8_t queueUser: Index for user to queue transfer

volatile uint8_t queueDriver: Index for driver to get the transfer data and size

FlexIO SPI Driver

void FLEXIO_SPI_MasterInit(FLEXIO_SPI_Type *base, flexio_spi_master_config_t *masterConfig, uint32_t srcClock_Hz)

Ungates the FlexIO clock, resets the FlexIO module, configures the FlexIO SPI master hardware, and configures the FlexIO SPI with FlexIO SPI master configuration. The configuration structure can be filled by the user, or be set with default values by the FLEXIO_SPI_MasterGetDefaultConfig().

Example

FLEXIO_SPI_Type spiDev = {
.flexioBase = FLEXIO,
.SDOPinIndex = 0,
.SDIPinIndex = 1,
.SCKPinIndex = 2,
.CSnPinIndex = 3,
.shifterIndex = {0,1},
.timerIndex = {0,1}
};
flexio_spi_master_config_t config = {
.enableMaster = true,
.enableInDoze = false,
.enableInDebug = true,
.enableFastAccess = false,
.baudRate_Bps = 500000,
.phase = kFLEXIO_SPI_ClockPhaseFirstEdge,
.direction = kFLEXIO_SPI_MsbFirst,
.dataMode = kFLEXIO_SPI_8BitMode
};
FLEXIO_SPI_MasterInit(&spiDev, &config, srcClock_Hz);

Note

1.FlexIO SPI master only support CPOL = 0, which means clock inactive low. 2.For FlexIO SPI master, the input valid time is 1.5 clock cycles, for slave the output valid time is 2.5 clock cycles. So if FlexIO SPI master communicates with other spi IPs, the maximum baud rate is FlexIO clock frequency divided by 2*2=4. If FlexIO SPI master communicates with FlexIO SPI slave, the maximum baud rate is FlexIO clock frequency divided by (1.5+2.5)*2=8.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
masterConfig – Pointer to the flexio_spi_master_config_t structure.
srcClock_Hz – FlexIO source clock in Hz.

void FLEXIO_SPI_MasterDeinit(FLEXIO_SPI_Type *base)

Resets the FlexIO SPI timer and shifter config.

Parameters:

base – Pointer to the FLEXIO_SPI_Type.

void FLEXIO_SPI_MasterGetDefaultConfig(flexio_spi_master_config_t *masterConfig)

Gets the default configuration to configure the FlexIO SPI master. The configuration can be used directly by calling the FLEXIO_SPI_MasterConfigure(). Example:

flexio_spi_master_config_t masterConfig;
FLEXIO_SPI_MasterGetDefaultConfig(&masterConfig);

Parameters:

masterConfig – Pointer to the flexio_spi_master_config_t structure.

void FLEXIO_SPI_SlaveInit(FLEXIO_SPI_Type *base, flexio_spi_slave_config_t *slaveConfig)

Ungates the FlexIO clock, resets the FlexIO module, configures the FlexIO SPI slave hardware configuration, and configures the FlexIO SPI with FlexIO SPI slave configuration. The configuration structure can be filled by the user, or be set with default values by the FLEXIO_SPI_SlaveGetDefaultConfig().

Note

1.Only one timer is needed in the FlexIO SPI slave. As a result, the second timer index is ignored. 2.FlexIO SPI slave only support CPOL = 0, which means clock inactive low. 3.For FlexIO SPI master, the input valid time is 1.5 clock cycles, for slave the output valid time is 2.5 clock cycles. So if FlexIO SPI slave communicates with other spi IPs, the maximum baud rate is FlexIO clock frequency divided by 3*2=6. If FlexIO SPI slave communicates with FlexIO SPI master, the maximum baud rate is FlexIO clock frequency divided by (1.5+2.5)*2=8. Example

FLEXIO_SPI_Type spiDev = {
.flexioBase = FLEXIO,
.SDOPinIndex = 0,
.SDIPinIndex = 1,
.SCKPinIndex = 2,
.CSnPinIndex = 3,
.shifterIndex = {0,1},
.timerIndex = {0}
};
flexio_spi_slave_config_t config = {
.enableSlave = true,
.enableInDoze = false,
.enableInDebug = true,
.enableFastAccess = false,
.phase = kFLEXIO_SPI_ClockPhaseFirstEdge,
.direction = kFLEXIO_SPI_MsbFirst,
.dataMode = kFLEXIO_SPI_8BitMode
};
FLEXIO_SPI_SlaveInit(&spiDev, &config);

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
slaveConfig – Pointer to the flexio_spi_slave_config_t structure.

void FLEXIO_SPI_SlaveDeinit(FLEXIO_SPI_Type *base)

Gates the FlexIO clock.

Parameters:

base – Pointer to the FLEXIO_SPI_Type.

void FLEXIO_SPI_SlaveGetDefaultConfig(flexio_spi_slave_config_t *slaveConfig)

Gets the default configuration to configure the FlexIO SPI slave. The configuration can be used directly for calling the FLEXIO_SPI_SlaveConfigure(). Example:

flexio_spi_slave_config_t slaveConfig;
FLEXIO_SPI_SlaveGetDefaultConfig(&slaveConfig);

Parameters:

slaveConfig – Pointer to the flexio_spi_slave_config_t structure.

uint32_t FLEXIO_SPI_GetStatusFlags(FLEXIO_SPI_Type *base)

Gets FlexIO SPI status flags.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.

Returns:

status flag; Use the status flag to AND the following flag mask and get the status.

kFLEXIO_SPI_TxEmptyFlag
kFLEXIO_SPI_RxEmptyFlag

void FLEXIO_SPI_ClearStatusFlags(FLEXIO_SPI_Type *base, uint32_t mask)

Clears FlexIO SPI status flags.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
mask – status flag The parameter can be any combination of the following values:
- kFLEXIO_SPI_TxEmptyFlag
- kFLEXIO_SPI_RxEmptyFlag

void FLEXIO_SPI_EnableInterrupts(FLEXIO_SPI_Type *base, uint32_t mask)

Enables the FlexIO SPI interrupt.

This function enables the FlexIO SPI interrupt.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
mask – interrupt source. The parameter can be any combination of the following values:
- kFLEXIO_SPI_RxFullInterruptEnable
- kFLEXIO_SPI_TxEmptyInterruptEnable

void FLEXIO_SPI_DisableInterrupts(FLEXIO_SPI_Type *base, uint32_t mask)

Disables the FlexIO SPI interrupt.

This function disables the FlexIO SPI interrupt.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
mask – interrupt source The parameter can be any combination of the following values:
- kFLEXIO_SPI_RxFullInterruptEnable
- kFLEXIO_SPI_TxEmptyInterruptEnable

void FLEXIO_SPI_EnableDMA(FLEXIO_SPI_Type *base, uint32_t mask, bool enable)

Enables/disables the FlexIO SPI transmit DMA. This function enables/disables the FlexIO SPI Tx DMA, which means that asserting the kFLEXIO_SPI_TxEmptyFlag does/doesn’t trigger the DMA request.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
mask – SPI DMA source.
enable – True means enable DMA, false means disable DMA.

static inline uint32_t FLEXIO_SPI_GetTxDataRegisterAddress(FLEXIO_SPI_Type *base, flexio_spi_shift_direction_t direction)

Gets the FlexIO SPI transmit data register address for MSB first transfer.

This function returns the SPI data register address, which is mainly used by DMA/eDMA.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
direction – Shift direction of MSB first or LSB first.

Returns:

FlexIO SPI transmit data register address.

static inline uint32_t FLEXIO_SPI_GetRxDataRegisterAddress(FLEXIO_SPI_Type *base, flexio_spi_shift_direction_t direction)

Gets the FlexIO SPI receive data register address for the MSB first transfer.

This function returns the SPI data register address, which is mainly used by DMA/eDMA.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
direction – Shift direction of MSB first or LSB first.

Returns:

FlexIO SPI receive data register address.

static inline void FLEXIO_SPI_Enable(FLEXIO_SPI_Type *base, bool enable)

Enables/disables the FlexIO SPI module operation.

Parameters:

base – Pointer to the FLEXIO_SPI_Type.
enable – True to enable, false does not have any effect.

void FLEXIO_SPI_MasterSetBaudRate(FLEXIO_SPI_Type *base, uint32_t baudRate_Bps, uint32_t srcClockHz)

Sets baud rate for the FlexIO SPI transfer, which is only used for the master.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
baudRate_Bps – Baud Rate needed in Hz.
srcClockHz – SPI source clock frequency in Hz.

static inline void FLEXIO_SPI_WriteData(FLEXIO_SPI_Type *base, flexio_spi_shift_direction_t direction, uint32_t data)

Writes one byte of data, which is sent using the MSB method.

Note

This is a non-blocking API, which returns directly after the data is put into the data register but the data transfer is not finished on the bus. Ensure that the TxEmptyFlag is asserted before calling this API.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
direction – Shift direction of MSB first or LSB first.
data – 8/16/32 bit data.

static inline uint32_t FLEXIO_SPI_ReadData(FLEXIO_SPI_Type *base, flexio_spi_shift_direction_t direction)

Reads 8 bit/16 bit data.

Note

This is a non-blocking API, which returns directly after the data is read from the data register. Ensure that the RxFullFlag is asserted before calling this API.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
direction – Shift direction of MSB first or LSB first.

Returns:

8 bit/16 bit data received.

status_t FLEXIO_SPI_WriteBlocking(FLEXIO_SPI_Type *base, flexio_spi_shift_direction_t direction, const uint8_t *buffer, size_t size)

Sends a buffer of data bytes.

Note

This function blocks using the polling method until all bytes have been sent.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
direction – Shift direction of MSB first or LSB first.
buffer – The data bytes to send.
size – The number of data bytes to send.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_FLEXIO_SPI_Timeout – The transfer timed out and was aborted.

status_t FLEXIO_SPI_ReadBlocking(FLEXIO_SPI_Type *base, flexio_spi_shift_direction_t direction, uint8_t *buffer, size_t size)

Receives a buffer of bytes.

Note

This function blocks using the polling method until all bytes have been received.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
direction – Shift direction of MSB first or LSB first.
buffer – The buffer to store the received bytes.
size – The number of data bytes to be received.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_FLEXIO_SPI_Timeout – The transfer timed out and was aborted.

status_t FLEXIO_SPI_MasterTransferBlocking(FLEXIO_SPI_Type *base, flexio_spi_transfer_t *xfer)

Receives a buffer of bytes.

Note

This function blocks via polling until all bytes have been received.

Parameters:

base – pointer to FLEXIO_SPI_Type structure
xfer – FlexIO SPI transfer structure, see flexio_spi_transfer_t.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_FLEXIO_SPI_Timeout – The transfer timed out and was aborted.

void FLEXIO_SPI_FlushShifters(FLEXIO_SPI_Type *base)

Flush tx/rx shifters.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.

status_t FLEXIO_SPI_MasterTransferCreateHandle(FLEXIO_SPI_Type *base, flexio_spi_master_handle_t *handle, flexio_spi_master_transfer_callback_t callback, void *userData)

Initializes the FlexIO SPI Master handle, which is used in transactional functions.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
handle – Pointer to the flexio_spi_master_handle_t structure to store the transfer state.
callback – The callback function.
userData – The parameter of the callback function.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_OutOfRange – The FlexIO type/handle/ISR table out of range.

status_t FLEXIO_SPI_MasterTransferNonBlocking(FLEXIO_SPI_Type *base, flexio_spi_master_handle_t *handle, flexio_spi_transfer_t *xfer)

Master transfer data using IRQ.

This function sends data using IRQ. This is a non-blocking function, which returns right away. When all data is sent out/received, the callback function is called.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
handle – Pointer to the flexio_spi_master_handle_t structure to store the transfer state.
xfer – FlexIO SPI transfer structure. See flexio_spi_transfer_t.

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_InvalidArgument – Input argument is invalid.
kStatus_FLEXIO_SPI_Busy – SPI is not idle, is running another transfer.

void FLEXIO_SPI_MasterTransferAbort(FLEXIO_SPI_Type *base, flexio_spi_master_handle_t *handle)

Aborts the master data transfer, which used IRQ.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
handle – Pointer to the flexio_spi_master_handle_t structure to store the transfer state.

status_t FLEXIO_SPI_MasterTransferGetCount(FLEXIO_SPI_Type *base, flexio_spi_master_handle_t *handle, size_t *count)

Gets the data transfer status which used IRQ.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
handle – Pointer to the flexio_spi_master_handle_t structure to store the transfer state.
count – Number of bytes transferred so far by the non-blocking transaction.

Return values:

kStatus_InvalidArgument – count is Invalid.
kStatus_Success – Successfully return the count.

void FLEXIO_SPI_MasterTransferHandleIRQ(void *spiType, void *spiHandle)

FlexIO SPI master IRQ handler function.

Parameters:

spiType – Pointer to the FLEXIO_SPI_Type structure.
spiHandle – Pointer to the flexio_spi_master_handle_t structure to store the transfer state.

status_t FLEXIO_SPI_SlaveTransferCreateHandle(FLEXIO_SPI_Type *base, flexio_spi_slave_handle_t *handle, flexio_spi_slave_transfer_callback_t callback, void *userData)

Initializes the FlexIO SPI Slave handle, which is used in transactional functions.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
handle – Pointer to the flexio_spi_slave_handle_t structure to store the transfer state.
callback – The callback function.
userData – The parameter of the callback function.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_OutOfRange – The FlexIO type/handle/ISR table out of range.

status_t FLEXIO_SPI_SlaveTransferNonBlocking(FLEXIO_SPI_Type *base, flexio_spi_slave_handle_t *handle, flexio_spi_transfer_t *xfer)

Slave transfer data using IRQ.

This function sends data using IRQ. This is a non-blocking function, which returns right away. When all data is sent out/received, the callback function is called.

Parameters:

handle – Pointer to the flexio_spi_slave_handle_t structure to store the transfer state.
base – Pointer to the FLEXIO_SPI_Type structure.
xfer – FlexIO SPI transfer structure. See flexio_spi_transfer_t.

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_InvalidArgument – Input argument is invalid.
kStatus_FLEXIO_SPI_Busy – SPI is not idle; it is running another transfer.

static inline void FLEXIO_SPI_SlaveTransferAbort(FLEXIO_SPI_Type *base, flexio_spi_slave_handle_t *handle)

Aborts the slave data transfer which used IRQ, share same API with master.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
handle – Pointer to the flexio_spi_slave_handle_t structure to store the transfer state.

static inline status_t FLEXIO_SPI_SlaveTransferGetCount(FLEXIO_SPI_Type *base, flexio_spi_slave_handle_t *handle, size_t *count)

Gets the data transfer status which used IRQ, share same API with master.

Parameters:

base – Pointer to the FLEXIO_SPI_Type structure.
handle – Pointer to the flexio_spi_slave_handle_t structure to store the transfer state.
count – Number of bytes transferred so far by the non-blocking transaction.

Return values:

kStatus_InvalidArgument – count is Invalid.
kStatus_Success – Successfully return the count.

void FLEXIO_SPI_SlaveTransferHandleIRQ(void *spiType, void *spiHandle)

FlexIO SPI slave IRQ handler function.

Parameters:

spiType – Pointer to the FLEXIO_SPI_Type structure.
spiHandle – Pointer to the flexio_spi_slave_handle_t structure to store the transfer state.

FSL_FLEXIO_SPI_DRIVER_VERSION: FlexIO SPI driver version.

Error codes for the FlexIO SPI driver.

Values:

enumerator kStatus_FLEXIO_SPI_Busy: FlexIO SPI is busy.

enumerator kStatus_FLEXIO_SPI_Idle: SPI is idle

enumerator kStatus_FLEXIO_SPI_Error: FlexIO SPI error.

enumerator kStatus_FLEXIO_SPI_Timeout: FlexIO SPI timeout polling status flags.

enum _flexio_spi_clock_phase

FlexIO SPI clock phase configuration.

Values:

enumerator kFLEXIO_SPI_ClockPhaseFirstEdge: First edge on SPSCK occurs at the middle of the first cycle of a data transfer.

enumerator kFLEXIO_SPI_ClockPhaseSecondEdge: First edge on SPSCK occurs at the start of the first cycle of a data transfer.

enum _flexio_spi_shift_direction

FlexIO SPI data shifter direction options.

Values:

enumerator kFLEXIO_SPI_MsbFirst: Data transfers start with most significant bit.

enumerator kFLEXIO_SPI_LsbFirst: Data transfers start with least significant bit.

enum _flexio_spi_data_bitcount_mode

FlexIO SPI data length mode options.

Values:

enumerator kFLEXIO_SPI_8BitMode: 8-bit data transmission mode.

enumerator kFLEXIO_SPI_16BitMode: 16-bit data transmission mode.

enumerator kFLEXIO_SPI_32BitMode: 32-bit data transmission mode.

enum _flexio_spi_interrupt_enable

Define FlexIO SPI interrupt mask.

Values:

enumerator kFLEXIO_SPI_TxEmptyInterruptEnable: Transmit buffer empty interrupt enable.

enumerator kFLEXIO_SPI_RxFullInterruptEnable: Receive buffer full interrupt enable.

enum _flexio_spi_status_flags

Define FlexIO SPI status mask.

Values:

enumerator kFLEXIO_SPI_TxBufferEmptyFlag: Transmit buffer empty flag.

enumerator kFLEXIO_SPI_RxBufferFullFlag: Receive buffer full flag.

enum _flexio_spi_dma_enable

Define FlexIO SPI DMA mask.

Values:

enumerator kFLEXIO_SPI_TxDmaEnable: Tx DMA request source

enumerator kFLEXIO_SPI_RxDmaEnable: Rx DMA request source

enumerator kFLEXIO_SPI_DmaAllEnable: All DMA request source

enum _flexio_spi_transfer_flags

Define FlexIO SPI transfer flags.

Note

Use kFLEXIO_SPI_csContinuous and one of the other flags to OR together to form the transfer flag.

Values:

enumerator kFLEXIO_SPI_8bitMsb: FlexIO SPI 8-bit MSB first

enumerator kFLEXIO_SPI_8bitLsb: FlexIO SPI 8-bit LSB first

enumerator kFLEXIO_SPI_16bitMsb: FlexIO SPI 16-bit MSB first

enumerator kFLEXIO_SPI_16bitLsb: FlexIO SPI 16-bit LSB first

enumerator kFLEXIO_SPI_32bitMsb: FlexIO SPI 32-bit MSB first

enumerator kFLEXIO_SPI_32bitLsb: FlexIO SPI 32-bit LSB first

enumerator kFLEXIO_SPI_csContinuous: Enable the CS signal continuous mode

typedef enum _flexio_spi_clock_phase flexio_spi_clock_phase_t: FlexIO SPI clock phase configuration.

typedef enum _flexio_spi_shift_direction flexio_spi_shift_direction_t: FlexIO SPI data shifter direction options.

typedef enum _flexio_spi_data_bitcount_mode flexio_spi_data_bitcount_mode_t: FlexIO SPI data length mode options.

typedef struct _flexio_spi_type FLEXIO_SPI_Type: Define FlexIO SPI access structure typedef.

typedef struct _flexio_spi_master_config flexio_spi_master_config_t: Define FlexIO SPI master configuration structure.

typedef struct _flexio_spi_slave_config flexio_spi_slave_config_t: Define FlexIO SPI slave configuration structure.

typedef struct _flexio_spi_transfer flexio_spi_transfer_t: Define FlexIO SPI transfer structure.

typedef struct _flexio_spi_master_handle flexio_spi_master_handle_t: typedef for flexio_spi_master_handle_t in advance.

typedef flexio_spi_master_handle_t flexio_spi_slave_handle_t: Slave handle is the same with master handle.

typedef void (*flexio_spi_master_transfer_callback_t)(FLEXIO_SPI_Type *base, flexio_spi_master_handle_t *handle, status_t status, void *userData): FlexIO SPI master callback for finished transmit.

typedef void (*flexio_spi_slave_transfer_callback_t)(FLEXIO_SPI_Type *base, flexio_spi_slave_handle_t *handle, status_t status, void *userData): FlexIO SPI slave callback for finished transmit.

FLEXIO_SPI_DUMMYDATA: FlexIO SPI dummy transfer data, the data is sent while txData is NULL.

SPI_RETRY_TIMES: Retry times for waiting flag.

FLEXIO_SPI_XFER_DATA_FORMAT(flag): Get the transfer data format of width and bit order.

struct _flexio_spi_type

#include <fsl_flexio_spi.h>

Define FlexIO SPI access structure typedef.

Public Members

FLEXIO_Type *flexioBase: FlexIO base pointer.

uint8_t SDOPinIndex: Pin select for data output. To set SDO pin in Hi-Z state, user needs to mux the pin as GPIO input and disable all pull up/down in application.

uint8_t SDIPinIndex: Pin select for data input.

uint8_t SCKPinIndex: Pin select for clock.

uint8_t CSnPinIndex: Pin select for enable.

uint8_t shifterIndex[2]: Shifter index used in FlexIO SPI.

uint8_t timerIndex[2]: Timer index used in FlexIO SPI.

struct _flexio_spi_master_config

#include <fsl_flexio_spi.h>

Define FlexIO SPI master configuration structure.

Public Members

bool enableMaster: Enable/disable FlexIO SPI master after configuration.

bool enableInDoze: Enable/disable FlexIO operation in doze mode.

bool enableInDebug: Enable/disable FlexIO operation in debug mode.

bool enableFastAccess: Enable/disable fast access to FlexIO registers, fast access requires the FlexIO clock to be at least twice the frequency of the bus clock.

uint32_t baudRate_Bps: Baud rate in Bps.

flexio_spi_clock_phase_t phase: Clock phase.

flexio_spi_data_bitcount_mode_t dataMode: 8bit or 16bit mode.

struct _flexio_spi_slave_config

#include <fsl_flexio_spi.h>

Define FlexIO SPI slave configuration structure.

Public Members

bool enableSlave: Enable/disable FlexIO SPI slave after configuration.

bool enableInDoze: Enable/disable FlexIO operation in doze mode.

bool enableInDebug: Enable/disable FlexIO operation in debug mode.

bool enableFastAccess: Enable/disable fast access to FlexIO registers, fast access requires the FlexIO clock to be at least twice the frequency of the bus clock.

flexio_spi_clock_phase_t phase: Clock phase.

flexio_spi_data_bitcount_mode_t dataMode: 8bit or 16bit mode.

struct _flexio_spi_transfer

#include <fsl_flexio_spi.h>

Define FlexIO SPI transfer structure.

Public Members

const uint8_t *txData: Send buffer.

uint8_t *rxData: Receive buffer.

size_t dataSize: Transfer bytes.

uint8_t flags: FlexIO SPI control flag, MSB first or LSB first.

struct _flexio_spi_master_handle

#include <fsl_flexio_spi.h>

Define FlexIO SPI handle structure.

Public Members

const uint8_t *txData: Transfer buffer.

uint8_t *rxData: Receive buffer.

size_t transferSize: Total bytes to be transferred.

volatile size_t txRemainingBytes: Send data remaining in bytes.

volatile size_t rxRemainingBytes: Receive data remaining in bytes.

volatile uint32_t state: FlexIO SPI internal state.

uint8_t bytePerFrame: SPI mode, 2bytes or 1byte in a frame

flexio_spi_shift_direction_t direction: Shift direction.

flexio_spi_master_transfer_callback_t callback: FlexIO SPI callback.

void *userData: Callback parameter.

FlexIO UART Driver

status_t FLEXIO_UART_Init(FLEXIO_UART_Type *base, const flexio_uart_config_t *userConfig, uint32_t srcClock_Hz)

Ungates the FlexIO clock, resets the FlexIO module, configures FlexIO UART hardware, and configures the FlexIO UART with FlexIO UART configuration. The configuration structure can be filled by the user or be set with default values by FLEXIO_UART_GetDefaultConfig().

Example

FLEXIO_UART_Type base = {
.flexioBase = FLEXIO,
.TxPinIndex = 0,
.RxPinIndex = 1,
.shifterIndex = {0,1},
.timerIndex = {0,1}
};
flexio_uart_config_t config = {
.enableInDoze = false,
.enableInDebug = true,
.enableFastAccess = false,
.baudRate_Bps = 115200U,
.bitCountPerChar = 8
};
FLEXIO_UART_Init(base, &config, srcClock_Hz);

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
userConfig – Pointer to the flexio_uart_config_t structure.
srcClock_Hz – FlexIO source clock in Hz.

Return values:

kStatus_Success – Configuration success.
kStatus_FLEXIO_UART_BaudrateNotSupport – Baudrate is not supported for current clock source frequency.

void FLEXIO_UART_Deinit(FLEXIO_UART_Type *base)

Resets the FlexIO UART shifter and timer config.

Note

After calling this API, call the FLEXO_UART_Init to use the FlexIO UART module.

Parameters:

base – Pointer to FLEXIO_UART_Type structure

void FLEXIO_UART_GetDefaultConfig(flexio_uart_config_t *userConfig)

Gets the default configuration to configure the FlexIO UART. The configuration can be used directly for calling the FLEXIO_UART_Init(). Example:

flexio_uart_config_t config;
FLEXIO_UART_GetDefaultConfig(&userConfig);

Parameters:

userConfig – Pointer to the flexio_uart_config_t structure.

uint32_t FLEXIO_UART_GetStatusFlags(FLEXIO_UART_Type *base)

Gets the FlexIO UART status flags.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.

Returns:

FlexIO UART status flags.

void FLEXIO_UART_ClearStatusFlags(FLEXIO_UART_Type *base, uint32_t mask)

Gets the FlexIO UART status flags.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
mask – Status flag. The parameter can be any combination of the following values:
- kFLEXIO_UART_TxDataRegEmptyFlag
- kFLEXIO_UART_RxEmptyFlag
- kFLEXIO_UART_RxOverRunFlag

void FLEXIO_UART_EnableInterrupts(FLEXIO_UART_Type *base, uint32_t mask)

Enables the FlexIO UART interrupt.

This function enables the FlexIO UART interrupt.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
mask – Interrupt source.

void FLEXIO_UART_DisableInterrupts(FLEXIO_UART_Type *base, uint32_t mask)

Disables the FlexIO UART interrupt.

This function disables the FlexIO UART interrupt.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
mask – Interrupt source.

static inline uint32_t FLEXIO_UART_GetTxDataRegisterAddress(FLEXIO_UART_Type *base)

Gets the FlexIO UARt transmit data register address.

This function returns the UART data register address, which is mainly used by DMA/eDMA.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.

Returns:

FlexIO UART transmit data register address.

static inline uint32_t FLEXIO_UART_GetRxDataRegisterAddress(FLEXIO_UART_Type *base)

Gets the FlexIO UART receive data register address.

This function returns the UART data register address, which is mainly used by DMA/eDMA.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.

Returns:

FlexIO UART receive data register address.

static inline void FLEXIO_UART_EnableTxDMA(FLEXIO_UART_Type *base, bool enable)

Enables/disables the FlexIO UART transmit DMA. This function enables/disables the FlexIO UART Tx DMA, which means asserting the kFLEXIO_UART_TxDataRegEmptyFlag does/doesn’t trigger the DMA request.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
enable – True to enable, false to disable.

static inline void FLEXIO_UART_EnableRxDMA(FLEXIO_UART_Type *base, bool enable)

Enables/disables the FlexIO UART receive DMA. This function enables/disables the FlexIO UART Rx DMA, which means asserting kFLEXIO_UART_RxDataRegFullFlag does/doesn’t trigger the DMA request.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
enable – True to enable, false to disable.

static inline void FLEXIO_UART_Enable(FLEXIO_UART_Type *base, bool enable)

Enables/disables the FlexIO UART module operation.

Parameters:

base – Pointer to the FLEXIO_UART_Type.
enable – True to enable, false does not have any effect.

static inline void FLEXIO_UART_WriteByte(FLEXIO_UART_Type *base, const uint8_t *buffer)

Writes one byte of data.

Note

This is a non-blocking API, which returns directly after the data is put into the data register. Ensure that the TxEmptyFlag is asserted before calling this API.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
buffer – The data bytes to send.

static inline void FLEXIO_UART_ReadByte(FLEXIO_UART_Type *base, uint8_t *buffer)

Reads one byte of data.

Note

This is a non-blocking API, which returns directly after the data is read from the data register. Ensure that the RxFullFlag is asserted before calling this API.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
buffer – The buffer to store the received bytes.

status_t FLEXIO_UART_WriteBlocking(FLEXIO_UART_Type *base, const uint8_t *txData, size_t txSize)

Sends a buffer of data bytes.

Note

This function blocks using the polling method until all bytes have been sent.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
txData – The data bytes to send.
txSize – The number of data bytes to send.

Return values:

kStatus_FLEXIO_UART_Timeout – Transmission timed out and was aborted.
kStatus_Success – Successfully wrote all data.

status_t FLEXIO_UART_ReadBlocking(FLEXIO_UART_Type *base, uint8_t *rxData, size_t rxSize)

Receives a buffer of bytes.

Note

This function blocks using the polling method until all bytes have been received.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
rxData – The buffer to store the received bytes.
rxSize – The number of data bytes to be received.

Return values:

kStatus_FLEXIO_UART_Timeout – Transmission timed out and was aborted.
kStatus_Success – Successfully received all data.

status_t FLEXIO_UART_TransferCreateHandle(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle, flexio_uart_transfer_callback_t callback, void *userData)

Initializes the UART handle.

This function initializes the FlexIO UART handle, which can be used for other FlexIO UART transactional APIs. Call this API once to get the initialized handle.

The UART driver supports the “background” receiving, which means that users can set up a RX ring buffer optionally. Data received is stored into the ring buffer even when the user doesn’t call the FLEXIO_UART_TransferReceiveNonBlocking() API. If there is already data received in the ring buffer, users can get the received data from the ring buffer directly. The ring buffer is disabled if passing NULL as ringBuffer.

Parameters:

base – to FLEXIO_UART_Type structure.
handle – Pointer to the flexio_uart_handle_t structure to store the transfer state.
callback – The callback function.
userData – The parameter of the callback function.

Return values:

kStatus_Success – Successfully create the handle.
kStatus_OutOfRange – The FlexIO type/handle/ISR table out of range.

void FLEXIO_UART_TransferStartRingBuffer(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle, uint8_t *ringBuffer, size_t ringBufferSize)

Sets up the RX ring buffer.

This function sets up the RX ring buffer to a specific UART handle.

When the RX ring buffer is used, data received is stored into the ring buffer even when the user doesn’t call the UART_ReceiveNonBlocking() API. If there is already data received in the ring buffer, users can get the received data from the ring buffer directly.

Note

When using the RX ring buffer, one byte is reserved for internal use. In other words, if ringBufferSize is 32, only 31 bytes are used for saving data.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
handle – Pointer to the flexio_uart_handle_t structure to store the transfer state.
ringBuffer – Start address of ring buffer for background receiving. Pass NULL to disable the ring buffer.
ringBufferSize – Size of the ring buffer.

void FLEXIO_UART_TransferStopRingBuffer(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle)

Aborts the background transfer and uninstalls the ring buffer.

This function aborts the background transfer and uninstalls the ring buffer.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
handle – Pointer to the flexio_uart_handle_t structure to store the transfer state.

status_t FLEXIO_UART_TransferSendNonBlocking(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle, flexio_uart_transfer_t *xfer)

Transmits a buffer of data using the interrupt method.

This function sends data using an interrupt method. This is a non-blocking function, which returns directly without waiting for all data to be written to the TX register. When all data is written to the TX register in ISR, the FlexIO UART driver calls the callback function and passes the kStatus_FLEXIO_UART_TxIdle as status parameter.

Note

The kStatus_FLEXIO_UART_TxIdle is passed to the upper layer when all data is written to the TX register. However, it does not ensure that all data is sent out.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
handle – Pointer to the flexio_uart_handle_t structure to store the transfer state.
xfer – FlexIO UART transfer structure. See flexio_uart_transfer_t.

Return values:

kStatus_Success – Successfully starts the data transmission.
kStatus_UART_TxBusy – Previous transmission still not finished, data not written to the TX register.

void FLEXIO_UART_TransferAbortSend(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle)

Aborts the interrupt-driven data transmit.

This function aborts the interrupt-driven data sending. Get the remainBytes to find out how many bytes are still not sent out.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
handle – Pointer to the flexio_uart_handle_t structure to store the transfer state.

status_t FLEXIO_UART_TransferGetSendCount(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle, size_t *count)

Gets the number of bytes sent.

This function gets the number of bytes sent driven by interrupt.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
handle – Pointer to the flexio_uart_handle_t structure to store the transfer state.
count – Number of bytes sent so far by the non-blocking transaction.

Return values:

kStatus_NoTransferInProgress – transfer has finished or no transfer in progress.
kStatus_Success – Successfully return the count.

status_t FLEXIO_UART_TransferReceiveNonBlocking(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle, flexio_uart_transfer_t *xfer, size_t *receivedBytes)

Receives a buffer of data using the interrupt method.

This function receives data using the interrupt method. This is a non-blocking function, which returns without waiting for all data to be received. If the RX ring buffer is used and not empty, the data in ring buffer is copied and the parameter receivedBytes shows how many bytes are copied from the ring buffer. After copying, if the data in ring buffer is not enough to read, the receive request is saved by the UART driver. When new data arrives, the receive request is serviced first. When all data is received, the UART driver notifies the upper layer through a callback function and passes the status parameter kStatus_UART_RxIdle. For example, if the upper layer needs 10 bytes but there are only 5 bytes in the ring buffer, the 5 bytes are copied to xfer->data. This function returns with the parameter receivedBytes set to 5. For the last 5 bytes, newly arrived data is saved from the xfer->data[5]. When 5 bytes are received, the UART driver notifies upper layer. If the RX ring buffer is not enabled, this function enables the RX and RX interrupt to receive data to xfer->data. When all data is received, the upper layer is notified.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
handle – Pointer to the flexio_uart_handle_t structure to store the transfer state.
xfer – UART transfer structure. See flexio_uart_transfer_t.
receivedBytes – Bytes received from the ring buffer directly.

Return values:

kStatus_Success – Successfully queue the transfer into the transmit queue.
kStatus_FLEXIO_UART_RxBusy – Previous receive request is not finished.

void FLEXIO_UART_TransferAbortReceive(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle)

Aborts the receive data which was using IRQ.

This function aborts the receive data which was using IRQ.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
handle – Pointer to the flexio_uart_handle_t structure to store the transfer state.

status_t FLEXIO_UART_TransferGetReceiveCount(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle, size_t *count)

Gets the number of bytes received.

This function gets the number of bytes received driven by interrupt.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.
handle – Pointer to the flexio_uart_handle_t structure to store the transfer state.
count – Number of bytes received so far by the non-blocking transaction.

Return values:

kStatus_NoTransferInProgress – transfer has finished or no transfer in progress.
kStatus_Success – Successfully return the count.

void FLEXIO_UART_TransferHandleIRQ(void *uartType, void *uartHandle)

FlexIO UART IRQ handler function.

This function processes the FlexIO UART transmit and receives the IRQ request.

Parameters:

uartType – Pointer to the FLEXIO_UART_Type structure.
uartHandle – Pointer to the flexio_uart_handle_t structure to store the transfer state.

void FLEXIO_UART_FlushShifters(FLEXIO_UART_Type *base)

Flush tx/rx shifters.

Parameters:

base – Pointer to the FLEXIO_UART_Type structure.

FSL_FLEXIO_UART_DRIVER_VERSION: FlexIO UART driver version.

Error codes for the UART driver.

Values:

enumerator kStatus_FLEXIO_UART_TxBusy: Transmitter is busy.

enumerator kStatus_FLEXIO_UART_RxBusy: Receiver is busy.

enumerator kStatus_FLEXIO_UART_TxIdle: UART transmitter is idle.

enumerator kStatus_FLEXIO_UART_RxIdle: UART receiver is idle.

enumerator kStatus_FLEXIO_UART_ERROR: ERROR happens on UART.

enumerator kStatus_FLEXIO_UART_RxRingBufferOverrun: UART RX software ring buffer overrun.

enumerator kStatus_FLEXIO_UART_RxHardwareOverrun: UART RX receiver overrun.

enumerator kStatus_FLEXIO_UART_Timeout: UART times out.

enumerator kStatus_FLEXIO_UART_BaudrateNotSupport: Baudrate is not supported in current clock source

enum _flexio_uart_bit_count_per_char

FlexIO UART bit count per char.

Values:

enumerator kFLEXIO_UART_7BitsPerChar: 7-bit data characters

enumerator kFLEXIO_UART_8BitsPerChar: 8-bit data characters

enumerator kFLEXIO_UART_9BitsPerChar: 9-bit data characters

enum _flexio_uart_interrupt_enable

Define FlexIO UART interrupt mask.

Values:

enumerator kFLEXIO_UART_TxDataRegEmptyInterruptEnable: Transmit buffer empty interrupt enable.

enumerator kFLEXIO_UART_RxDataRegFullInterruptEnable: Receive buffer full interrupt enable.

enum _flexio_uart_status_flags

Define FlexIO UART status mask.

Values:

enumerator kFLEXIO_UART_TxDataRegEmptyFlag: Transmit buffer empty flag.

enumerator kFLEXIO_UART_RxDataRegFullFlag: Receive buffer full flag.

enumerator kFLEXIO_UART_RxOverRunFlag: Receive buffer over run flag.

typedef enum _flexio_uart_bit_count_per_char flexio_uart_bit_count_per_char_t: FlexIO UART bit count per char.

typedef struct _flexio_uart_type FLEXIO_UART_Type: Define FlexIO UART access structure typedef.

typedef struct _flexio_uart_config flexio_uart_config_t: Define FlexIO UART user configuration structure.

typedef struct _flexio_uart_transfer flexio_uart_transfer_t: Define FlexIO UART transfer structure.

typedef struct _flexio_uart_handle flexio_uart_handle_t

typedef void (*flexio_uart_transfer_callback_t)(FLEXIO_UART_Type *base, flexio_uart_handle_t *handle, status_t status, void *userData): FlexIO UART transfer callback function.

UART_RETRY_TIMES: Retry times for waiting flag.

struct _flexio_uart_type

#include <fsl_flexio_uart.h>

Define FlexIO UART access structure typedef.

Public Members

FLEXIO_Type *flexioBase: FlexIO base pointer.

uint8_t TxPinIndex: Pin select for UART_Tx.

uint8_t RxPinIndex: Pin select for UART_Rx.

uint8_t shifterIndex[2]: Shifter index used in FlexIO UART.

uint8_t timerIndex[2]: Timer index used in FlexIO UART.

struct _flexio_uart_config

#include <fsl_flexio_uart.h>

Define FlexIO UART user configuration structure.

Public Members

bool enableUart: Enable/disable FlexIO UART TX & RX.

bool enableInDoze: Enable/disable FlexIO operation in doze mode

bool enableInDebug: Enable/disable FlexIO operation in debug mode

bool enableFastAccess: Enable/disable fast access to FlexIO registers, fast access requires the FlexIO clock to be at least twice the frequency of the bus clock.

uint32_t baudRate_Bps: Baud rate in Bps.

flexio_uart_bit_count_per_char_t bitCountPerChar: number of bits, 7/8/9 -bit

struct _flexio_uart_transfer

#include <fsl_flexio_uart.h>

Define FlexIO UART transfer structure.

Public Members

size_t dataSize: Transfer size

struct _flexio_uart_handle

#include <fsl_flexio_uart.h>

Define FLEXIO UART handle structure.

Public Members

const uint8_t *volatile txData: Address of remaining data to send.

volatile size_t txDataSize: Size of the remaining data to send.

uint8_t *volatile rxData: Address of remaining data to receive.

volatile size_t rxDataSize: Size of the remaining data to receive.

size_t txDataSizeAll: Total bytes to be sent.

size_t rxDataSizeAll: Total bytes to be received.

uint8_t *rxRingBuffer: Start address of the receiver ring buffer.

size_t rxRingBufferSize: Size of the ring buffer.

volatile uint16_t rxRingBufferHead: Index for the driver to store received data into ring buffer.

volatile uint16_t rxRingBufferTail: Index for the user to get data from the ring buffer.

flexio_uart_transfer_callback_t callback: Callback function.

void *userData: UART callback function parameter.

volatile uint8_t txState: TX transfer state.

volatile uint8_t rxState: RX transfer state

union __unnamed37__

Public Members

uint8_t *data: The buffer of data to be transfer.

uint8_t *rxData: The buffer to receive data.

const uint8_t *txData: The buffer of data to be sent.

ftfx adapter

Ftftx CACHE Driver

enum _ftfx_cache_ram_func_constants

Constants for execute-in-RAM flash function.

Values:

enumerator kFTFx_CACHE_RamFuncMaxSizeInWords: The maximum size of execute-in-RAM function.

typedef struct _flash_prefetch_speculation_status ftfx_prefetch_speculation_status_t: FTFx prefetch speculation status.

typedef struct _ftfx_cache_config ftfx_cache_config_t

FTFx cache driver state information.

An instance of this structure is allocated by the user of the flash driver and passed into each of the driver APIs.

status_t FTFx_CACHE_Init(ftfx_cache_config_t *config)

Initializes the global FTFx cache structure members.

This function checks and initializes the Flash module for the other FTFx cache APIs.

Parameters:

config – Pointer to the storage for the driver runtime state.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.

status_t FTFx_CACHE_ClearCachePrefetchSpeculation(ftfx_cache_config_t *config, bool isPreProcess)

Process the cache/prefetch/speculation to the flash.

Parameters:

config – A pointer to the storage for the driver runtime state.
isPreProcess – The possible option used to control flash cache/prefetch/speculation

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – Invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.

status_t FTFx_CACHE_PflashSetPrefetchSpeculation(ftfx_prefetch_speculation_status_t *speculationStatus)

Sets the PFlash prefetch speculation to the intended speculation status.

Parameters:

speculationStatus – The expected protect status to set to the PFlash protection register. Each bit is

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidSpeculationOption – An invalid speculation option argument is provided.

status_t FTFx_CACHE_PflashGetPrefetchSpeculation(ftfx_prefetch_speculation_status_t *speculationStatus)

Gets the PFlash prefetch speculation status.

Parameters:

speculationStatus – Speculation status returned by the PFlash IP.

Return values:

kStatus_FTFx_Success – API was executed successfully.

struct _flash_prefetch_speculation_status

#include <fsl_ftfx_cache.h>

FTFx prefetch speculation status.

Public Members

bool instructionOff: Instruction speculation.

bool dataOff: Data speculation.

union function_bit_operation_ptr_t

#include <fsl_ftfx_cache.h>

Public Members

uint32_t commadAddr

void (*callFlashCommand)(volatile uint32_t *base, uint32_t bitMask, uint32_t bitShift, uint32_t bitValue)

struct _ftfx_cache_config

#include <fsl_ftfx_cache.h>

FTFx cache driver state information.

An instance of this structure is allocated by the user of the flash driver and passed into each of the driver APIs.

Public Members

uint8_t flashMemoryIndex: 0 - primary flash; 1 - secondary flash

function_bit_operation_ptr_t bitOperFuncAddr: An buffer point to the flash execute-in-RAM function.

ftfx controller

FTFx driver status codes.

Values:

enumerator kStatus_FTFx_Success: API is executed successfully

enumerator kStatus_FTFx_InvalidArgument: Invalid argument

enumerator kStatus_FTFx_SizeError: Error size

enumerator kStatus_FTFx_AlignmentError: Parameter is not aligned with the specified baseline

enumerator kStatus_FTFx_AddressError: Address is out of range

enumerator kStatus_FTFx_AccessError: Invalid instruction codes and out-of bound addresses

enumerator kStatus_FTFx_ProtectionViolation: The program/erase operation is requested to execute on protected areas

enumerator kStatus_FTFx_CommandFailure: Run-time error during command execution.

enumerator kStatus_FTFx_UnknownProperty: Unknown property.

enumerator kStatus_FTFx_EraseKeyError: API erase key is invalid.

enumerator kStatus_FTFx_RegionExecuteOnly: The current region is execute-only.

enumerator kStatus_FTFx_ExecuteInRamFunctionNotReady: Execute-in-RAM function is not available.

enumerator kStatus_FTFx_PartitionStatusUpdateFailure: Failed to update partition status.

enumerator kStatus_FTFx_SetFlexramAsEepromError: Failed to set FlexRAM as EEPROM.

enumerator kStatus_FTFx_RecoverFlexramAsRamError: Failed to recover FlexRAM as RAM.

enumerator kStatus_FTFx_SetFlexramAsRamError: Failed to set FlexRAM as RAM.

enumerator kStatus_FTFx_RecoverFlexramAsEepromError: Failed to recover FlexRAM as EEPROM.

enumerator kStatus_FTFx_CommandNotSupported: Flash API is not supported.

enumerator kStatus_FTFx_SwapSystemNotInUninitialized: Swap system is not in an uninitialzed state.

enumerator kStatus_FTFx_SwapIndicatorAddressError: The swap indicator address is invalid.

enumerator kStatus_FTFx_ReadOnlyProperty: The flash property is read-only.

enumerator kStatus_FTFx_InvalidPropertyValue: The flash property value is out of range.

enumerator kStatus_FTFx_InvalidSpeculationOption: The option of flash prefetch speculation is invalid.

enumerator kStatus_FTFx_CommandOperationInProgress: The option of flash command is processing.

enum _ftfx_driver_api_keys

Enumeration for FTFx driver API keys.

Note

The resulting value is built with a byte order such that the string being readable in expected order when viewed in a hex editor, if the value is treated as a 32-bit little endian value.

Values:

enumerator kFTFx_ApiEraseKey: Key value used to validate all FTFx erase APIs.

void FTFx_API_Init(ftfx_config_t *config)

Initializes the global flash properties structure members.

This function checks and initializes the Flash module for the other Flash APIs.

Parameters:

config – Pointer to the storage for the driver runtime state.

status_t FTFx_API_UpdateFlexnvmPartitionStatus(ftfx_config_t *config)

Updates FlexNVM memory partition status according to data flash 0 IFR.

This function updates FlexNVM memory partition status.

Parameters:

config – Pointer to the storage for the driver runtime state.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_PartitionStatusUpdateFailure – Failed to update the partition status.

status_t FTFx_CMD_Erase(ftfx_config_t *config, uint32_t start, uint32_t lengthInBytes, uint32_t key)

Erases the flash sectors encompassed by parameters passed into function.

This function erases the appropriate number of flash sectors based on the desired start address and length.

Parameters:

config – The pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be erased. The start address does not need to be sector-aligned but must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words) to be erased. Must be word-aligned.
key – The value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – The parameter is not aligned with the specified baseline.
kStatus_FTFx_AddressError – The address is out of range.
kStatus_FTFx_EraseKeyError – The API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_EraseSectorNonBlocking(ftfx_config_t *config, uint32_t start, uint32_t key)

Erases the flash sectors encompassed by parameters passed into function.

This function erases one flash sector size based on the start address.

Parameters:

config – The pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be erased. The start address does not need to be sector-aligned but must be word-aligned.
key – The value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – The parameter is not aligned with the specified baseline.
kStatus_FTFx_AddressError – The address is out of range.
kStatus_FTFx_EraseKeyError – The API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.

status_t FTFx_CMD_EraseAll(ftfx_config_t *config, uint32_t key)

Erases entire flash.

Parameters:

config – Pointer to the storage for the driver runtime state.
key – A value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_EraseKeyError – API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_PartitionStatusUpdateFailure – Failed to update the partition status.

status_t FTFx_CMD_EraseAllUnsecure(ftfx_config_t *config, uint32_t key)

Erases the entire flash, including protected sectors.

Parameters:

config – Pointer to the storage for the driver runtime state.
key – A value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_EraseKeyError – API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_PartitionStatusUpdateFailure – Failed to update the partition status.

status_t FTFx_CMD_EraseAllExecuteOnlySegments(ftfx_config_t *config, uint32_t key)

Erases all program flash execute-only segments defined by the FXACC registers.

Parameters:

config – Pointer to the storage for the driver runtime state.
key – A value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_EraseKeyError – API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_Program(ftfx_config_t *config, uint32_t start, const uint8_t *src, uint32_t lengthInBytes)

Programs flash with data at locations passed in through parameters.

This function programs the flash memory with the desired data for a given flash area as determined by the start address and the length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
src – A pointer to the source buffer of data that is to be programmed into the flash.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with the specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_ProgramOnce(ftfx_config_t *config, uint32_t index, const uint8_t *src, uint32_t lengthInBytes)

Programs Program Once Field through parameters.

This function programs the Program Once Field with the desired data for a given flash area as determined by the index and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
index – The index indicating which area of the Program Once Field to be programmed.
src – A pointer to the source buffer of data that is to be programmed into the Program Once Field.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_ProgramSection(ftfx_config_t *config, uint32_t start, const uint8_t *src, uint32_t lengthInBytes)

Programs flash with data at locations passed in through parameters via the Program Section command.

This function programs the flash memory with the desired data for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
src – A pointer to the source buffer of data that is to be programmed into the flash.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_SetFlexramAsRamError – Failed to set flexram as RAM.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_RecoverFlexramAsEepromError – Failed to recover FlexRAM as EEPROM.

status_t FTFx_CMD_ProgramPartition(ftfx_config_t *config, ftfx_partition_flexram_load_opt_t option, uint32_t eepromDataSizeCode, uint32_t flexnvmPartitionCode)

Prepares the FlexNVM block for use as data flash, EEPROM backup, or a combination of both and initializes the FlexRAM.

Parameters:

config – Pointer to storage for the driver runtime state.
option – The option used to set FlexRAM load behavior during reset.
eepromDataSizeCode – Determines the amount of FlexRAM used in each of the available EEPROM subsystems.
flexnvmPartitionCode – Specifies how to split the FlexNVM block between data flash memory and EEPROM backup memory supporting EEPROM functions.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – Invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.

status_t FTFx_CMD_ReadOnce(ftfx_config_t *config, uint32_t index, uint8_t *dst, uint32_t lengthInBytes)

Reads the Program Once Field through parameters.

This function reads the read once feild with given index and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
index – The index indicating the area of program once field to be read.
dst – A pointer to the destination buffer of data that is used to store data to be read.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_ReadResource(ftfx_config_t *config, uint32_t start, uint8_t *dst, uint32_t lengthInBytes, ftfx_read_resource_opt_t option)

Reads the resource with data at locations passed in through parameters.

This function reads the flash memory with the desired location for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
dst – A pointer to the destination buffer of data that is used to store data to be read.
lengthInBytes – The length, given in bytes (not words or long-words), to be read. Must be word-aligned.
option – The resource option which indicates which area should be read back.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with the specified baseline.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_VerifyErase(ftfx_config_t *config, uint32_t start, uint32_t lengthInBytes, ftfx_margin_value_t margin)

Verifies an erasure of the desired flash area at a specified margin level.

This function checks the appropriate number of flash sectors based on the desired start address and length to check whether the flash is erased to the specified read margin level.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be verified. The start address does not need to be sector-aligned but must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words), to be verified. Must be word-aligned.
margin – Read margin choice.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_VerifyEraseAll(ftfx_config_t *config, ftfx_margin_value_t margin)

Verifies erasure of the entire flash at a specified margin level.

This function checks whether the flash is erased to the specified read margin level.

Parameters:

config – A pointer to the storage for the driver runtime state.
margin – Read margin choice.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_VerifyEraseAllExecuteOnlySegments(ftfx_config_t *config, ftfx_margin_value_t margin)

Verifies whether the program flash execute-only segments have been erased to the specified read margin level.

Parameters:

config – A pointer to the storage for the driver runtime state.
margin – Read margin choice.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_VerifyProgram(ftfx_config_t *config, uint32_t start, uint32_t lengthInBytes, const uint8_t *expectedData, ftfx_margin_value_t margin, uint32_t *failedAddress, uint32_t *failedData)

Verifies programming of the desired flash area at a specified margin level.

This function verifies the data programed in the flash memory using the Flash Program Check Command and compares it to the expected data for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be verified. Must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words), to be verified. Must be word-aligned.
expectedData – A pointer to the expected data that is to be verified against.
margin – Read margin choice.
failedAddress – A pointer to the returned failing address.
failedData – A pointer to the returned failing data. Some derivatives do not include failed data as part of the FCCOBx registers. In this case, zeros are returned upon failure.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_REG_GetSecurityState(ftfx_config_t *config, ftfx_security_state_t *state)

Returns the security state via the pointer passed into the function.

This function retrieves the current flash security status, including the security enabling state and the backdoor key enabling state.

Parameters:

config – A pointer to storage for the driver runtime state.
state – A pointer to the value returned for the current security status code:

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.

status_t FTFx_CMD_SecurityBypass(ftfx_config_t *config, const uint8_t *backdoorKey)

Allows users to bypass security with a backdoor key.

If the MCU is in secured state, this function unsecures the MCU by comparing the provided backdoor key with ones in the flash configuration field.

Parameters:

config – A pointer to the storage for the driver runtime state.
backdoorKey – A pointer to the user buffer containing the backdoor key.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_SetFlexramFunction(ftfx_config_t *config, ftfx_flexram_func_opt_t option)

Sets the FlexRAM function command.

Parameters:

config – A pointer to the storage for the driver runtime state.
option – The option used to set the work mode of FlexRAM.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FTFx_CMD_SwapControl(ftfx_config_t *config, uint32_t address, ftfx_swap_control_opt_t option, ftfx_swap_state_config_t *returnInfo)

Configures the Swap function or checks the swap state of the Flash module.

Parameters:

config – A pointer to the storage for the driver runtime state.
address – Address used to configure the flash Swap function.
option – The possible option used to configure Flash Swap function or check the flash Swap status
returnInfo – A pointer to the data which is used to return the information of flash Swap.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_SwapIndicatorAddressError – Swap indicator address is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

enum _ftfx_partition_flexram_load_option

Enumeration for the FlexRAM load during reset option.

Values:

enumerator kFTFx_PartitionFlexramLoadOptLoadedWithValidEepromData: FlexRAM is loaded with valid EEPROM data during reset sequence.

enumerator kFTFx_PartitionFlexramLoadOptNotLoaded: FlexRAM is not loaded during reset sequence.

enum _ftfx_read_resource_opt

Enumeration for the two possible options of flash read resource command.

Values:

enumerator kFTFx_ResourceOptionFlashIfr: Select code for Program flash 0 IFR, Program flash swap 0 IFR, Data flash 0 IFR

enumerator kFTFx_ResourceOptionVersionId: Select code for the version ID

enum _ftfx_margin_value

Enumeration for supported FTFx margin levels.

Values:

enumerator kFTFx_MarginValueNormal: Use the ‘normal’ read level for 1s.

enumerator kFTFx_MarginValueUser: Apply the ‘User’ margin to the normal read-1 level.

enumerator kFTFx_MarginValueFactory: Apply the ‘Factory’ margin to the normal read-1 level.

enumerator kFTFx_MarginValueInvalid: Not real margin level, Used to determine the range of valid margin level.

enum _ftfx_security_state

Enumeration for the three possible FTFx security states.

Values:

enumerator kFTFx_SecurityStateNotSecure: Flash is not secure.

enumerator kFTFx_SecurityStateBackdoorEnabled: Flash backdoor is enabled.

enumerator kFTFx_SecurityStateBackdoorDisabled: Flash backdoor is disabled.

enum _ftfx_flexram_function_option

Enumeration for the two possilbe options of set FlexRAM function command.

Values:

enumerator kFTFx_FlexramFuncOptAvailableAsRam: An option used to make FlexRAM available as RAM

enumerator kFTFx_FlexramFuncOptAvailableForEeprom: An option used to make FlexRAM available for EEPROM

enum _flash_acceleration_ram_property

Enumeration for acceleration ram property.

Values:

enumerator kFLASH_AccelerationRamSize

enum _ftfx_swap_control_option

Enumeration for the possible options of Swap control commands.

Values:

enumerator kFTFx_SwapControlOptionIntializeSystem: An option used to initialize the Swap system

enumerator kFTFx_SwapControlOptionSetInUpdateState: An option used to set the Swap in an update state

enumerator kFTFx_SwapControlOptionSetInCompleteState: An option used to set the Swap in a complete state

enumerator kFTFx_SwapControlOptionReportStatus: An option used to report the Swap status

enumerator kFTFx_SwapControlOptionDisableSystem: An option used to disable the Swap status

enum _ftfx_swap_state

Enumeration for the possible flash Swap status.

Values:

enumerator kFTFx_SwapStateUninitialized: Flash Swap system is in an uninitialized state.

enumerator kFTFx_SwapStateReady: Flash Swap system is in a ready state.

enumerator kFTFx_SwapStateUpdate: Flash Swap system is in an update state.

enumerator kFTFx_SwapStateUpdateErased: Flash Swap system is in an updateErased state.

enumerator kFTFx_SwapStateComplete: Flash Swap system is in a complete state.

enumerator kFTFx_SwapStateDisabled: Flash Swap system is in a disabled state.

enum _ftfx_swap_block_status

Enumeration for the possible flash Swap block status.

Values:

enumerator kFTFx_SwapBlockStatusLowerHalfProgramBlocksAtZero: Swap block status is that lower half program block at zero.

enumerator kFTFx_SwapBlockStatusUpperHalfProgramBlocksAtZero: Swap block status is that upper half program block at zero.

enum _ftfx_memory_type

Enumeration for FTFx memory type.

Values:

enumerator kFTFx_MemTypePflash

enumerator kFTFx_MemTypeFlexnvm

typedef enum _ftfx_partition_flexram_load_option ftfx_partition_flexram_load_opt_t: Enumeration for the FlexRAM load during reset option.

typedef enum _ftfx_read_resource_opt ftfx_read_resource_opt_t: Enumeration for the two possible options of flash read resource command.

typedef enum _ftfx_margin_value ftfx_margin_value_t: Enumeration for supported FTFx margin levels.

typedef enum _ftfx_security_state ftfx_security_state_t: Enumeration for the three possible FTFx security states.

typedef enum _ftfx_flexram_function_option ftfx_flexram_func_opt_t: Enumeration for the two possilbe options of set FlexRAM function command.

typedef enum _ftfx_swap_control_option ftfx_swap_control_opt_t: Enumeration for the possible options of Swap control commands.

typedef enum _ftfx_swap_state ftfx_swap_state_t: Enumeration for the possible flash Swap status.

typedef enum _ftfx_swap_block_status ftfx_swap_block_status_t: Enumeration for the possible flash Swap block status.

typedef struct _ftfx_swap_state_config ftfx_swap_state_config_t: Flash Swap information.

typedef struct _ftfx_special_mem ftfx_spec_mem_t: ftfx special memory access information.

typedef struct _ftfx_mem_descriptor ftfx_mem_desc_t: Flash memory descriptor.

typedef struct _ftfx_ops_config ftfx_ops_config_t: Active FTFx information for the current operation.

typedef struct _ftfx_ifr_descriptor ftfx_ifr_desc_t: Flash IFR memory descriptor.

typedef struct _ftfx_config ftfx_config_t

Flash driver state information.

An instance of this structure is allocated by the user of the flash driver and passed into each of the driver APIs.

struct _ftfx_swap_state_config

#include <fsl_ftfx_controller.h>

Flash Swap information.

Public Members

ftfx_swap_state_t flashSwapState: The current Swap system status.

ftfx_swap_block_status_t currentSwapBlockStatus: The current Swap block status.

ftfx_swap_block_status_t nextSwapBlockStatus: The next Swap block status.

struct _ftfx_special_mem

#include <fsl_ftfx_controller.h>

ftfx special memory access information.

Public Members

uint32_t base: Base address of flash special memory.

uint32_t size: size of flash special memory.

uint32_t count: flash special memory count.

struct _ftfx_mem_descriptor

#include <fsl_ftfx_controller.h>

Flash memory descriptor.

Public Members

uint32_t blockBase: A base address of the flash block

uint32_t aliasBlockBase: A base address of the alias flash block

uint32_t totalSize: The size of the flash block.

uint32_t sectorSize: The size in bytes of a sector of flash.

uint32_t blockCount: A number of flash blocks.

struct _ftfx_ops_config

#include <fsl_ftfx_controller.h>

Active FTFx information for the current operation.

Public Members

uint32_t convertedAddress: A converted address for the current flash type.

struct _ftfx_ifr_descriptor: #include <fsl_ftfx_controller.h>

Flash IFR memory descriptor.

union function_ptr_t

#include <fsl_ftfx_controller.h>

Public Members

uint32_t commadAddr

void (*callFlashCommand)(volatile uint8_t *FTMRx_fstat)

struct _ftfx_config

#include <fsl_ftfx_controller.h>

Flash driver state information.

An instance of this structure is allocated by the user of the flash driver and passed into each of the driver APIs.

Public Members

uint32_t flexramBlockBase: The base address of the FlexRAM/acceleration RAM

uint32_t flexramTotalSize: The size of the FlexRAM/acceleration RAM

uint16_t eepromTotalSize: The size of EEPROM area which was partitioned from FlexRAM

function_ptr_t runCmdFuncAddr: An buffer point to the flash execute-in-RAM function.

struct __unnamed5__

Public Members

uint8_t type: Type of flash block.

uint8_t index: Index of flash block.

struct feature

struct addrAligment

struct feature

struct resRange

Public Members

uint8_t versionIdStart: Version ID start address

uint32_t pflashIfrStart: Program Flash 0 IFR start address

uint32_t dflashIfrStart: Data Flash 0 IFR start address

uint32_t pflashSwapIfrStart: Program Flash Swap IFR start address

struct idxInfo

ftfx feature

FTFx_DRIVER_IS_FLASH_RESIDENT

Flash driver location.

Used for the flash resident application.

FTFx_DRIVER_IS_EXPORTED

Flash Driver Export option.

Used for the MCUXpresso SDK application.

FTFx_FLASH1_HAS_PROT_CONTROL: Indicates whether the secondary flash has its own protection register in flash module.

FTFx_FLASH1_HAS_XACC_CONTROL: Indicates whether the secondary flash has its own Execute-Only access register in flash module.

FTFx_DRIVER_HAS_FLASH1_SUPPORT: Indicates whether the secondary flash is supported in the Flash driver.

FTFx_FLASH_COUNT

FTFx_FLASH1_IS_INDEPENDENT_BLOCK

Ftftx FLASH Driver

status_t FLASH_Init(flash_config_t *config)

Initializes the global flash properties structure members.

This function checks and initializes the Flash module for the other Flash APIs.

Parameters:

config – Pointer to the storage for the driver runtime state.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_PartitionStatusUpdateFailure – Failed to update the partition status.

status_t FLASH_Erase(flash_config_t *config, uint32_t start, uint32_t lengthInBytes, uint32_t key)

Erases the Dflash sectors encompassed by parameters passed into function.

This function erases the appropriate number of flash sectors based on the desired start address and length.

Parameters:

config – The pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be erased. The start address does not need to be sector-aligned but must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words) to be erased. Must be word-aligned.
key – The value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully; the appropriate number of flash sectors based on the desired start address and length were erased successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – The parameter is not aligned with the specified baseline.
kStatus_FTFx_AddressError – The address is out of range.
kStatus_FTFx_EraseKeyError – The API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_EraseSectorNonBlocking(flash_config_t *config, uint32_t start, uint32_t key)

Erases the Dflash sectors encompassed by parameters passed into function.

This function erases one flash sector size based on the start address, and it is executed asynchronously.

NOTE: This function can only erase one flash sector at a time, and the other commands can be executed after the previous command has been completed.

Parameters:

config – The pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be erased. The start address does not need to be sector-aligned but must be word-aligned.
key – The value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – The parameter is not aligned with the specified baseline.
kStatus_FTFx_AddressError – The address is out of range.
kStatus_FTFx_EraseKeyError – The API erase key is invalid.

status_t FLASH_EraseAll(flash_config_t *config, uint32_t key)

Erases entire flexnvm.

Parameters:

config – Pointer to the storage for the driver runtime state.
key – A value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully; the all pflash and flexnvm were erased successfully, the swap and eeprom have been reset to unconfigured state.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_EraseKeyError – API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_PartitionStatusUpdateFailure – Failed to update the partition status.

status_t FLASH_EraseAllUnsecure(flash_config_t *config, uint32_t key)

Erases the entire flexnvm, including protected sectors.

Parameters:

config – Pointer to the storage for the driver runtime state.
key – A value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully; the protected sectors of flash were reset to unprotected status.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_EraseKeyError – API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_PartitionStatusUpdateFailure – Failed to update the partition status.

status_t FLASH_Program(flash_config_t *config, uint32_t start, uint8_t *src, uint32_t lengthInBytes)

Programs flash with data at locations passed in through parameters.

This function programs the flash memory with the desired data for a given flash area as determined by the start address and the length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
src – A pointer to the source buffer of data that is to be programmed into the flash.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully; the desired data were programed successfully into flash based on desired start address and length.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with the specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_ProgramOnce(flash_config_t *config, uint32_t index, uint8_t *src, uint32_t lengthInBytes)

Program the Program-Once-Field through parameters.

This function Program the Program-once-feild with given index and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
index – The index indicating the area of program once field to be read.
src – A pointer to the source buffer of data that is used to store data to be write.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully; The index indicating the area of program once field was programed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_ProgramSection(flash_config_t *config, uint32_t start, uint8_t *src, uint32_t lengthInBytes)

Programs flash with data at locations passed in through parameters via the Program Section command.

This function programs the flash memory with the desired data for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
src – A pointer to the source buffer of data that is to be programmed into the flash.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully; the desired data have been programed successfully into flash based on start address and length.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_SetFlexramAsRamError – Failed to set flexram as RAM.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_RecoverFlexramAsEepromError – Failed to recover FlexRAM as EEPROM.

status_t FLASH_ReadResource(flash_config_t *config, uint32_t start, uint8_t *dst, uint32_t lengthInBytes, ftfx_read_resource_opt_t option)

Reads the resource with data at locations passed in through parameters.

This function reads the flash memory with the desired location for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
dst – A pointer to the destination buffer of data that is used to store data to be read.
lengthInBytes – The length, given in bytes (not words or long-words), to be read. Must be word-aligned.
option – The resource option which indicates which area should be read back.

Return values:

kStatus_FTFx_Success – API was executed successfully; the data have been read successfully from program flash IFR, data flash IFR space, and the Version ID field.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with the specified baseline.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_ReadOnce(flash_config_t *config, uint32_t index, uint8_t *dst, uint32_t lengthInBytes)

Reads the Program Once Field through parameters.

This function reads the read once feild with given index and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
index – The index indicating the area of program once field to be read.
dst – A pointer to the destination buffer of data that is used to store data to be read.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully; the data have been successfuly read form Program flash0 IFR map and Program Once field based on index and length.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_VerifyErase(flash_config_t *config, uint32_t start, uint32_t lengthInBytes, ftfx_margin_value_t margin)

Verifies an erasure of the desired flash area at a specified margin level.

This function checks the appropriate number of flash sectors based on the desired start address and length to check whether the flash is erased to the specified read margin level.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be verified. The start address does not need to be sector-aligned but must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words), to be verified. Must be word-aligned.
margin – Read margin choice.

Return values:

kStatus_FTFx_Success – API was executed successfully; the specified FLASH region has been erased.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_VerifyEraseAll(flash_config_t *config, ftfx_margin_value_t margin)

Verifies erasure of the entire flash at a specified margin level.

This function checks whether the flash is erased to the specified read margin level.

Parameters:

config – A pointer to the storage for the driver runtime state.
margin – Read margin choice.

Return values:

kStatus_FTFx_Success – API was executed successfully; all program flash and flexnvm were in erased state.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_VerifyProgram(flash_config_t *config, uint32_t start, uint32_t lengthInBytes, const uint8_t *expectedData, ftfx_margin_value_t margin, uint32_t *failedAddress, uint32_t *failedData)

Verifies programming of the desired flash area at a specified margin level.

This function verifies the data programmed in the flash memory using the Flash Program Check Command and compares it to the expected data for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be verified. Must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words), to be verified. Must be word-aligned.
expectedData – A pointer to the expected data that is to be verified against.
margin – Read margin choice.
failedAddress – A pointer to the returned failing address.
failedData – A pointer to the returned failing data. Some derivatives do not include failed data as part of the FCCOBx registers. In this case, zeros are returned upon failure.

Return values:

kStatus_FTFx_Success – API was executed successfully; the desired data have been successfully programed into specified FLASH region.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_GetSecurityState(flash_config_t *config, ftfx_security_state_t *state)

Returns the security state via the pointer passed into the function.

This function retrieves the current flash security status, including the security enabling state and the backdoor key enabling state.

Parameters:

config – A pointer to storage for the driver runtime state.
state – A pointer to the value returned for the current security status code:

Return values:

kStatus_FTFx_Success – API was executed successfully; the security state of flash was stored to state.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.

status_t FLASH_SecurityBypass(flash_config_t *config, const uint8_t *backdoorKey)

Allows users to bypass security with a backdoor key.

If the MCU is in secured state, this function unsecures the MCU by comparing the provided backdoor key with ones in the flash configuration field.

Parameters:

config – A pointer to the storage for the driver runtime state.
backdoorKey – A pointer to the user buffer containing the backdoor key.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_SetFlexramFunction(flash_config_t *config, ftfx_flexram_func_opt_t option)

Sets the FlexRAM function command.

Parameters:

config – A pointer to the storage for the driver runtime state.
option – The option used to set the work mode of FlexRAM.

Return values:

kStatus_FTFx_Success – API was executed successfully; the FlexRAM has been successfully configured as RAM or EEPROM.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLASH_Swap(flash_config_t *config, uint32_t address, bool isSetEnable)

Swaps the lower half flash with the higher half flash.

Parameters:

config – A pointer to the storage for the driver runtime state.
address – Address used to configure the flash swap function
isSetEnable – The possible option used to configure the Flash Swap function or check the flash Swap status.

Return values:

kStatus_FTFx_Success – API was executed successfully; the lower half flash and higher half flash have been swaped.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_SwapIndicatorAddressError – Swap indicator address is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_SwapSystemNotInUninitialized – Swap system is not in an uninitialized state.

status_t FLASH_IsProtected(flash_config_t *config, uint32_t start, uint32_t lengthInBytes, flash_prot_state_t *protection_state)

Returns the protection state of the desired flash area via the pointer passed into the function.

This function retrieves the current flash protect status for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be checked. Must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words) to be checked. Must be word-aligned.
protection_state – A pointer to the value returned for the current protection status code for the desired flash area.

Return values:

kStatus_FTFx_Success – API was executed successfully; the protection state of specified FLASH region was stored to protection_state.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – The address is out of range.

status_t FLASH_IsExecuteOnly(flash_config_t *config, uint32_t start, uint32_t lengthInBytes, flash_xacc_state_t *access_state)

Returns the access state of the desired flash area via the pointer passed into the function.

This function retrieves the current flash access status for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be checked. Must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words), to be checked. Must be word-aligned.
access_state – A pointer to the value returned for the current access status code for the desired flash area.

Return values:

kStatus_FTFx_Success – API was executed successfully; the executeOnly state of specified FLASH region was stored to access_state.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – The parameter is not aligned to the specified baseline.
kStatus_FTFx_AddressError – The address is out of range.

status_t FLASH_PflashSetProtection(flash_config_t *config, pflash_prot_status_t *protectStatus)

Sets the PFlash Protection to the intended protection status.

Parameters:

config – A pointer to storage for the driver runtime state.
protectStatus – The expected protect status to set to the PFlash protection register. Each bit is corresponding to protection of 1/32(64) of the total PFlash. The least significant bit is corresponding to the lowest address area of PFlash. The most significant bit is corresponding to the highest address area of PFlash. There are two possible cases as shown below: 0: this area is protected. 1: this area is unprotected.

Return values:

kStatus_FTFx_Success – API was executed successfully; the specified FLASH region is protected.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_CommandFailure – Run-time error during command execution.

status_t FLASH_PflashGetProtection(flash_config_t *config, pflash_prot_status_t *protectStatus)

Gets the PFlash protection status.

Parameters:

config – A pointer to the storage for the driver runtime state.
protectStatus – Protect status returned by the PFlash IP. Each bit is corresponding to the protection of 1/32(64) of the total PFlash. The least significant bit corresponds to the lowest address area of the PFlash. The most significant bit corresponds to the highest address area of PFlash. There are two possible cases as shown below: 0: this area is protected. 1: this area is unprotected.

Return values:

kStatus_FTFx_Success – API was executed successfully; the Protection state was stored to protectStatus;
kStatus_FTFx_InvalidArgument – An invalid argument is provided.

status_t FLASH_GetProperty(flash_config_t *config, flash_property_tag_t whichProperty, uint32_t *value)

Returns the desired flash property.

Parameters:

config – A pointer to the storage for the driver runtime state.
whichProperty – The desired property from the list of properties in enum flash_property_tag_t
value – A pointer to the value returned for the desired flash property.

Return values:

kStatus_FTFx_Success – API was executed successfully; the flash property was stored to value.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_UnknownProperty – An unknown property tag.

status_t FLASH_GetCommandState(void)

Get previous command status.

This function is used to obtain the execution status of the previous command.

Return values:

kStatus_FTFx_Success – The previous command is executed successfully.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

FSL_FLASH_DRIVER_VERSION

Flash driver version for SDK.

Version 3.1.3.

FSL_FLASH_DRIVER_VERSION_ROM

Flash driver version for ROM.

Version 3.0.0.

enum _flash_protection_state

Enumeration for the three possible flash protection levels.

Values:

enumerator kFLASH_ProtectionStateUnprotected: Flash region is not protected.

enumerator kFLASH_ProtectionStateProtected: Flash region is protected.

enumerator kFLASH_ProtectionStateMixed: Flash is mixed with protected and unprotected region.

enum _flash_execute_only_access_state

Enumeration for the three possible flash execute access levels.

Values:

enumerator kFLASH_AccessStateUnLimited: Flash region is unlimited.

enumerator kFLASH_AccessStateExecuteOnly: Flash region is execute only.

enumerator kFLASH_AccessStateMixed: Flash is mixed with unlimited and execute only region.

enum _flash_property_tag

Enumeration for various flash properties.

Values:

enumerator kFLASH_PropertyPflash0SectorSize: Pflash sector size property.

enumerator kFLASH_PropertyPflash0TotalSize: Pflash total size property.

enumerator kFLASH_PropertyPflash0BlockSize: Pflash block size property.

enumerator kFLASH_PropertyPflash0BlockCount: Pflash block count property.

enumerator kFLASH_PropertyPflash0BlockBaseAddr: Pflash block base address property.

enumerator kFLASH_PropertyPflash0FacSupport: Pflash fac support property.

enumerator kFLASH_PropertyPflash0AccessSegmentSize: Pflash access segment size property.

enumerator kFLASH_PropertyPflash0AccessSegmentCount: Pflash access segment count property.

enumerator kFLASH_PropertyPflash1SectorSize: Pflash sector size property.

enumerator kFLASH_PropertyPflash1TotalSize: Pflash total size property.

enumerator kFLASH_PropertyPflash1BlockSize: Pflash block size property.

enumerator kFLASH_PropertyPflash1BlockCount: Pflash block count property.

enumerator kFLASH_PropertyPflash1BlockBaseAddr: Pflash block base address property.

enumerator kFLASH_PropertyPflash1FacSupport: Pflash fac support property.

enumerator kFLASH_PropertyPflash1AccessSegmentSize: Pflash access segment size property.

enumerator kFLASH_PropertyPflash1AccessSegmentCount: Pflash access segment count property.

enumerator kFLASH_PropertyFlexRamBlockBaseAddr: FlexRam block base address property.

enumerator kFLASH_PropertyFlexRamTotalSize: FlexRam total size property.

typedef enum _flash_protection_state flash_prot_state_t: Enumeration for the three possible flash protection levels.

typedef union _pflash_protection_status pflash_prot_status_t: PFlash protection status.

typedef enum _flash_execute_only_access_state flash_xacc_state_t: Enumeration for the three possible flash execute access levels.

typedef enum _flash_property_tag flash_property_tag_t: Enumeration for various flash properties.

typedef struct _flash_config flash_config_t

Flash driver state information.

An instance of this structure is allocated by the user of the flash driver and passed into each of the driver APIs.

kStatus_FLASH_Success

kFLASH_ApiEraseKey

union _pflash_protection_status

#include <fsl_ftfx_flash.h>

PFlash protection status.

Public Members

uint32_t protl: PROT[31:0] .

uint32_t proth: PROT[63:32].

uint8_t protsl: PROTS[7:0] .

uint8_t protsh: PROTS[15:8] .

uint8_t reserved[2]

struct _flash_config

#include <fsl_ftfx_flash.h>

Flash driver state information.

An instance of this structure is allocated by the user of the flash driver and passed into each of the driver APIs.

Ftftx FLEXNVM Driver

status_t FLEXNVM_Init(flexnvm_config_t *config)

Initializes the global flash properties structure members.

This function checks and initializes the Flash module for the other Flash APIs.

Parameters:

config – Pointer to the storage for the driver runtime state.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_PartitionStatusUpdateFailure – Failed to update the partition status.

status_t FLEXNVM_DflashErase(flexnvm_config_t *config, uint32_t start, uint32_t lengthInBytes, uint32_t key)

Erases the Dflash sectors encompassed by parameters passed into function.

This function erases the appropriate number of flash sectors based on the desired start address and length.

Parameters:

config – The pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be erased. The start address does not need to be sector-aligned but must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words) to be erased. Must be word-aligned.
key – The value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully; the appropriate number of date flash sectors based on the desired start address and length were erased successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – The parameter is not aligned with the specified baseline.
kStatus_FTFx_AddressError – The address is out of range.
kStatus_FTFx_EraseKeyError – The API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLEXNVM_EraseAll(flexnvm_config_t *config, uint32_t key)

Erases entire flexnvm.

Parameters:

config – Pointer to the storage for the driver runtime state.
key – A value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully; the entire flexnvm has been erased successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_EraseKeyError – API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_PartitionStatusUpdateFailure – Failed to update the partition status.

status_t FLEXNVM_EraseAllUnsecure(flexnvm_config_t *config, uint32_t key)

Erases the entire flexnvm, including protected sectors.

Parameters:

config – Pointer to the storage for the driver runtime state.
key – A value used to validate all flash erase APIs.

Return values:

kStatus_FTFx_Success – API was executed successfully; the flexnvm is not in securityi state.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_EraseKeyError – API erase key is invalid.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_PartitionStatusUpdateFailure – Failed to update the partition status.

status_t FLEXNVM_DflashProgram(flexnvm_config_t *config, uint32_t start, uint8_t *src, uint32_t lengthInBytes)

Programs flash with data at locations passed in through parameters.

This function programs the flash memory with the desired data for a given flash area as determined by the start address and the length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
src – A pointer to the source buffer of data that is to be programmed into the flash.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully; the desired date have been successfully programed into specified date flash region.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with the specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLEXNVM_DflashProgramSection(flexnvm_config_t *config, uint32_t start, uint8_t *src, uint32_t lengthInBytes)

Programs flash with data at locations passed in through parameters via the Program Section command.

This function programs the flash memory with the desired data for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
src – A pointer to the source buffer of data that is to be programmed into the flash.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully; the desired date have been successfully programed into specified date flash area.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_SetFlexramAsRamError – Failed to set flexram as RAM.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.
kStatus_FTFx_RecoverFlexramAsEepromError – Failed to recover FlexRAM as EEPROM.

status_t FLEXNVM_ProgramPartition(flexnvm_config_t *config, ftfx_partition_flexram_load_opt_t option, uint32_t eepromDataSizeCode, uint32_t flexnvmPartitionCode)

Prepares the FlexNVM block for use as data flash, EEPROM backup, or a combination of both and initializes the FlexRAM.

Parameters:

config – Pointer to storage for the driver runtime state.
option – The option used to set FlexRAM load behavior during reset.
eepromDataSizeCode – Determines the amount of FlexRAM used in each of the available EEPROM subsystems.
flexnvmPartitionCode – Specifies how to split the FlexNVM block between data flash memory and EEPROM backup memory supporting EEPROM functions.

Return values:

kStatus_FTFx_Success – API was executed successfully; the FlexNVM block for use as data flash, EEPROM backup, or a combination of both have been Prepared.
kStatus_FTFx_InvalidArgument – Invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during command execution.

status_t FLEXNVM_ReadResource(flexnvm_config_t *config, uint32_t start, uint8_t *dst, uint32_t lengthInBytes, ftfx_read_resource_opt_t option)

Reads the resource with data at locations passed in through parameters.

This function reads the flash memory with the desired location for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
dst – A pointer to the destination buffer of data that is used to store data to be read.
lengthInBytes – The length, given in bytes (not words or long-words), to be read. Must be word-aligned.
option – The resource option which indicates which area should be read back.

Return values:

kStatus_FTFx_Success – API was executed successfully; the data have been read successfully from program flash IFR, data flash IFR space, and the Version ID field
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with the specified baseline.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLEXNVM_DflashVerifyErase(flexnvm_config_t *config, uint32_t start, uint32_t lengthInBytes, ftfx_margin_value_t margin)

Verifies an erasure of the desired flash area at a specified margin level.

This function checks the appropriate number of flash sectors based on the desired start address and length to check whether the flash is erased to the specified read margin level.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be verified. The start address does not need to be sector-aligned but must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words), to be verified. Must be word-aligned.
margin – Read margin choice.

Return values:

kStatus_FTFx_Success – API was executed successfully; the specified data flash region is in erased state.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLEXNVM_VerifyEraseAll(flexnvm_config_t *config, ftfx_margin_value_t margin)

Verifies erasure of the entire flash at a specified margin level.

This function checks whether the flash is erased to the specified read margin level.

Parameters:

config – A pointer to the storage for the driver runtime state.
margin – Read margin choice.

Return values:

kStatus_FTFx_Success – API was executed successfully; the entire flexnvm region is in erased state.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLEXNVM_DflashVerifyProgram(flexnvm_config_t *config, uint32_t start, uint32_t lengthInBytes, const uint8_t *expectedData, ftfx_margin_value_t margin, uint32_t *failedAddress, uint32_t *failedData)

Verifies programming of the desired flash area at a specified margin level.

This function verifies the data programmed in the flash memory using the Flash Program Check Command and compares it to the expected data for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be verified. Must be word-aligned.
lengthInBytes – The length, given in bytes (not words or long-words), to be verified. Must be word-aligned.
expectedData – A pointer to the expected data that is to be verified against.
margin – Read margin choice.
failedAddress – A pointer to the returned failing address.
failedData – A pointer to the returned failing data. Some derivatives do not include failed data as part of the FCCOBx registers. In this case, zeros are returned upon failure.

Return values:

kStatus_FTFx_Success – API was executed successfully; the desired data hve been programed successfully into specified data flash region.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AlignmentError – Parameter is not aligned with specified baseline.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLEXNVM_GetSecurityState(flexnvm_config_t *config, ftfx_security_state_t *state)

Returns the security state via the pointer passed into the function.

This function retrieves the current flash security status, including the security enabling state and the backdoor key enabling state.

Parameters:

config – A pointer to storage for the driver runtime state.
state – A pointer to the value returned for the current security status code:

Return values:

kStatus_FTFx_Success – API was executed successfully; the security state of flexnvm was stored to state.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.

status_t FLEXNVM_SecurityBypass(flexnvm_config_t *config, const uint8_t *backdoorKey)

Allows users to bypass security with a backdoor key.

If the MCU is in secured state, this function unsecures the MCU by comparing the provided backdoor key with ones in the flash configuration field.

Parameters:

config – A pointer to the storage for the driver runtime state.
backdoorKey – A pointer to the user buffer containing the backdoor key.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLEXNVM_SetFlexramFunction(flexnvm_config_t *config, ftfx_flexram_func_opt_t option)

Sets the FlexRAM function command.

Parameters:

config – A pointer to the storage for the driver runtime state.
option – The option used to set the work mode of FlexRAM.

Return values:

kStatus_FTFx_Success – API was executed successfully; the FlexRAM has been successfully configured as RAM or EEPROM
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_ExecuteInRamFunctionNotReady – Execute-in-RAM function is not available.
kStatus_FTFx_AccessError – Invalid instruction codes and out-of bounds addresses.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_CommandFailure – Run-time error during the command execution.

status_t FLEXNVM_DflashSetProtection(flexnvm_config_t *config, uint8_t protectStatus)

Sets the DFlash protection to the intended protection status.

Parameters:

config – A pointer to the storage for the driver runtime state.
protectStatus – The expected protect status to set to the DFlash protection register. Each bit corresponds to the protection of the 1/8 of the total DFlash. The least significant bit corresponds to the lowest address area of the DFlash. The most significant bit corresponds to the highest address area of the DFlash. There are two possible cases as shown below: 0: this area is protected. 1: this area is unprotected.

Return values:

kStatus_FTFx_Success – API was executed successfully; the specified DFlash region is protected.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_CommandNotSupported – Flash API is not supported.
kStatus_FTFx_CommandFailure – Run-time error during command execution.

status_t FLEXNVM_DflashGetProtection(flexnvm_config_t *config, uint8_t *protectStatus)

Gets the DFlash protection status.

Parameters:

config – A pointer to the storage for the driver runtime state.
protectStatus – DFlash Protect status returned by the PFlash IP. Each bit corresponds to the protection of the 1/8 of the total DFlash. The least significant bit corresponds to the lowest address area of the DFlash. The most significant bit corresponds to the highest address area of the DFlash, and so on. There are two possible cases as below: 0: this area is protected. 1: this area is unprotected.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_CommandNotSupported – Flash API is not supported.

status_t FLEXNVM_EepromSetProtection(flexnvm_config_t *config, uint8_t protectStatus)

Sets the EEPROM protection to the intended protection status.

Parameters:

config – A pointer to the storage for the driver runtime state.
protectStatus – The expected protect status to set to the EEPROM protection register. Each bit corresponds to the protection of the 1/8 of the total EEPROM. The least significant bit corresponds to the lowest address area of the EEPROM. The most significant bit corresponds to the highest address area of EEPROM, and so on. There are two possible cases as shown below: 0: this area is protected. 1: this area is unprotected.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_CommandNotSupported – Flash API is not supported.
kStatus_FTFx_CommandFailure – Run-time error during command execution.

status_t FLEXNVM_EepromGetProtection(flexnvm_config_t *config, uint8_t *protectStatus)

Gets the EEPROM protection status.

Parameters:

config – A pointer to the storage for the driver runtime state.
protectStatus – DFlash Protect status returned by the PFlash IP. Each bit corresponds to the protection of the 1/8 of the total EEPROM. The least significant bit corresponds to the lowest address area of the EEPROM. The most significant bit corresponds to the highest address area of the EEPROM. There are two possible cases as below: 0: this area is protected. 1: this area is unprotected.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_CommandNotSupported – Flash API is not supported.

status_t FLEXNVM_GetProperty(flexnvm_config_t *config, flexnvm_property_tag_t whichProperty, uint32_t *value)

Returns the desired flexnvm property.

Parameters:

config – A pointer to the storage for the driver runtime state.
whichProperty – The desired property from the list of properties in enum flexnvm_property_tag_t
value – A pointer to the value returned for the desired flexnvm property.

Return values:

kStatus_FTFx_Success – API was executed successfully.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_UnknownProperty – An unknown property tag.

enum _flexnvm_property_tag

Enumeration for various flexnvm properties.

Values:

enumerator kFLEXNVM_PropertyDflashSectorSize: Dflash sector size property.

enumerator kFLEXNVM_PropertyDflashTotalSize: Dflash total size property.

enumerator kFLEXNVM_PropertyDflashBlockSize: Dflash block size property.

enumerator kFLEXNVM_PropertyDflashBlockCount: Dflash block count property.

enumerator kFLEXNVM_PropertyDflashBlockBaseAddr: Dflash block base address property.

enumerator kFLEXNVM_PropertyAliasDflashBlockBaseAddr: Dflash block base address Alias property.

enumerator kFLEXNVM_PropertyFlexRamBlockBaseAddr: FlexRam block base address property.

enumerator kFLEXNVM_PropertyFlexRamTotalSize: FlexRam total size property.

enumerator kFLEXNVM_PropertyEepromTotalSize: EEPROM total size property.

typedef enum _flexnvm_property_tag flexnvm_property_tag_t: Enumeration for various flexnvm properties.

typedef struct _flexnvm_config flexnvm_config_t

Flexnvm driver state information.

An instance of this structure is allocated by the user of the Flexnvm driver and passed into each of the driver APIs.

status_t FLEXNVM_EepromWrite(flexnvm_config_t *config, uint32_t start, uint8_t *src, uint32_t lengthInBytes)

Programs the EEPROM with data at locations passed in through parameters.

This function programs the emulated EEPROM with the desired data for a given flash area as determined by the start address and length.

Parameters:

config – A pointer to the storage for the driver runtime state.
start – The start address of the desired flash memory to be programmed. Must be word-aligned.
src – A pointer to the source buffer of data that is to be programmed into the flash.
lengthInBytes – The length, given in bytes (not words or long-words), to be programmed. Must be word-aligned.

Return values:

kStatus_FTFx_Success – API was executed successfully; the desires data have been successfully programed into specified eeprom region.
kStatus_FTFx_InvalidArgument – An invalid argument is provided.
kStatus_FTFx_AddressError – Address is out of range.
kStatus_FTFx_SetFlexramAsEepromError – Failed to set flexram as eeprom.
kStatus_FTFx_ProtectionViolation – The program/erase operation is requested to execute on protected areas.
kStatus_FTFx_RecoverFlexramAsRamError – Failed to recover the FlexRAM as RAM.

struct _flexnvm_config

#include <fsl_ftfx_flexnvm.h>

Flexnvm driver state information.

An instance of this structure is allocated by the user of the Flexnvm driver and passed into each of the driver APIs.

ftfx utilities

ALIGN_DOWN(x, a): Alignment(down) utility.

ALIGN_UP(x, a): Alignment(up) utility.

MAKE_VERSION(major, minor, bugfix): Constructs the version number for drivers.

MAKE_STATUS(group, code): Constructs a status code value from a group and a code number.

FOUR_CHAR_CODE(a, b, c, d): Constructs the four character code for the Flash driver API key.

B1P4(b): bytes2word utility.

B1P3(b)

B1P2(b)

B1P1(b)

B2P3(b)

B2P2(b)

B2P1(b)

B3P2(b)

B3P1(b)

BYTE2WORD_1_3(x, y)

BYTE2WORD_2_2(x, y)

BYTE2WORD_3_1(x, y)

BYTE2WORD_1_1_2(x, y, z)

BYTE2WORD_1_2_1(x, y, z)

BYTE2WORD_2_1_1(x, y, z)

BYTE2WORD_1_1_1_1(x, y, z, w)

GPIO: General-Purpose Input/Output Driver

FSL_GPIO_DRIVER_VERSION: GPIO driver version.

enum _gpio_pin_direction

GPIO direction definition.

Values:

enumerator kGPIO_DigitalInput: Set current pin as digital input

enumerator kGPIO_DigitalOutput: Set current pin as digital output

enum _gpio_checker_attribute

GPIO checker attribute.

Values:

enumerator kGPIO_UsernonsecureRWUsersecureRWPrivilegedsecureRW: User nonsecure:Read+Write; User Secure:Read+Write; Privileged Secure:Read+Write

enumerator kGPIO_UsernonsecureRUsersecureRWPrivilegedsecureRW: User nonsecure:Read; User Secure:Read+Write; Privileged Secure:Read+Write

enumerator kGPIO_UsernonsecureNUsersecureRWPrivilegedsecureRW: User nonsecure:None; User Secure:Read+Write; Privileged Secure:Read+Write

enumerator kGPIO_UsernonsecureRUsersecureRPrivilegedsecureRW: User nonsecure:Read; User Secure:Read; Privileged Secure:Read+Write

enumerator kGPIO_UsernonsecureNUsersecureRPrivilegedsecureRW: User nonsecure:None; User Secure:Read; Privileged Secure:Read+Write

enumerator kGPIO_UsernonsecureNUsersecureNPrivilegedsecureRW: User nonsecure:None; User Secure:None; Privileged Secure:Read+Write

enumerator kGPIO_UsernonsecureNUsersecureNPrivilegedsecureR: User nonsecure:None; User Secure:None; Privileged Secure:Read

enumerator kGPIO_UsernonsecureNUsersecureNPrivilegedsecureN: User nonsecure:None; User Secure:None; Privileged Secure:None

enumerator kGPIO_IgnoreAttributeCheck: Ignores the attribute check

typedef enum _gpio_pin_direction gpio_pin_direction_t: GPIO direction definition.

typedef enum _gpio_checker_attribute gpio_checker_attribute_t: GPIO checker attribute.

typedef struct _gpio_pin_config gpio_pin_config_t

The GPIO pin configuration structure.

Each pin can only be configured as either an output pin or an input pin at a time. If configured as an input pin, leave the outputConfig unused. Note that in some use cases, the corresponding port property should be configured in advance with the PORT_SetPinConfig().

GPIO_FIT_REG(value)

struct _gpio_pin_config

#include <fsl_gpio.h>

The GPIO pin configuration structure.

Each pin can only be configured as either an output pin or an input pin at a time. If configured as an input pin, leave the outputConfig unused. Note that in some use cases, the corresponding port property should be configured in advance with the PORT_SetPinConfig().

Public Members

gpio_pin_direction_t pinDirection: GPIO direction, input or output

uint8_t outputLogic: Set a default output logic, which has no use in input

GPIO Driver

void GPIO_PortInit(GPIO_Type *base)

Initializes the GPIO peripheral.

This function ungates the GPIO clock.

Parameters:

base – GPIO peripheral base pointer.

void GPIO_PortDenit(GPIO_Type *base)

Denitializes the GPIO peripheral.

Parameters:

base – GPIO peripheral base pointer.

void GPIO_PinInit(GPIO_Type *base, uint32_t pin, const gpio_pin_config_t *config)

Initializes a GPIO pin used by the board.

To initialize the GPIO, define a pin configuration, as either input or output, in the user file. Then, call the GPIO_PinInit() function.

This is an example to define an input pin or an output pin configuration.

Define a digital input pin configuration,
gpio_pin_config_t config =
{
  kGPIO_DigitalInput,
  0,
}
Define a digital output pin configuration,
gpio_pin_config_t config =
{
  kGPIO_DigitalOutput,
  0,
}

Parameters:

base – GPIO peripheral base pointer (GPIOA, GPIOB, GPIOC, and so on.)
pin – GPIO port pin number
config – GPIO pin configuration pointer

static inline void GPIO_PinWrite(GPIO_Type *base, uint32_t pin, uint8_t output)

Sets the output level of the multiple GPIO pins to the logic 1 or 0.

Parameters:

base – GPIO peripheral base pointer (GPIOA, GPIOB, GPIOC, and so on.)
pin – GPIO pin number
output – GPIO pin output logic level.
- 0: corresponding pin output low-logic level.
- 1: corresponding pin output high-logic level.

static inline void GPIO_PortSet(GPIO_Type *base, uint32_t mask)

Sets the output level of the multiple GPIO pins to the logic 1.

Parameters:

base – GPIO peripheral base pointer (GPIOA, GPIOB, GPIOC, and so on.)
mask – GPIO pin number macro

static inline void GPIO_PortClear(GPIO_Type *base, uint32_t mask)

Sets the output level of the multiple GPIO pins to the logic 0.

Parameters:

base – GPIO peripheral base pointer (GPIOA, GPIOB, GPIOC, and so on.)
mask – GPIO pin number macro

static inline void GPIO_PortToggle(GPIO_Type *base, uint32_t mask)

Reverses the current output logic of the multiple GPIO pins.

Parameters:

base – GPIO peripheral base pointer (GPIOA, GPIOB, GPIOC, and so on.)
mask – GPIO pin number macro

static inline uint32_t GPIO_PinRead(GPIO_Type *base, uint32_t pin)

Reads the current input value of the GPIO port.

Parameters:

base – GPIO peripheral base pointer (GPIOA, GPIOB, GPIOC, and so on.)
pin – GPIO pin number

Return values:

GPIO – port input value

0: corresponding pin input low-logic level.
1: corresponding pin input high-logic level.

uint32_t GPIO_PortGetInterruptFlags(GPIO_Type *base)

Reads the GPIO port interrupt status flag.

If a pin is configured to generate the DMA request, the corresponding flag is cleared automatically at the completion of the requested DMA transfer. Otherwise, the flag remains set until a logic one is written to that flag. If configured for a level sensitive interrupt that remains asserted, the flag is set again immediately.

Parameters:

base – GPIO peripheral base pointer (GPIOA, GPIOB, GPIOC, and so on.)

Return values:

The – current GPIO port interrupt status flag, for example, 0x00010001 means the pin 0 and 17 have the interrupt.

void GPIO_PortClearInterruptFlags(GPIO_Type *base, uint32_t mask)

Clears multiple GPIO pin interrupt status flags.

Parameters:

base – GPIO peripheral base pointer (GPIOA, GPIOB, GPIOC, and so on.)
mask – GPIO pin number macro

void GPIO_CheckAttributeBytes(GPIO_Type *base, gpio_checker_attribute_t attribute)

brief The GPIO module supports a device-specific number of data ports, organized as 32-bit words/8-bit Bytes. Each 32-bit/8-bit data port includes a GACR register, which defines the byte-level attributes required for a successful access to the GPIO programming model. If the GPIO module’s GACR register organized as 32-bit words, the attribute controls for the 4 data bytes in the GACR follow a standard little endian data convention.

Parameters:

base – GPIO peripheral base pointer (GPIOA, GPIOB, GPIOC, and so on.)
attribute – GPIO checker attribute

I2C: Inter-Integrated Circuit Driver

I2C DMA Driver

void I2C_MasterTransferCreateHandleDMA(I2C_Type *base, i2c_master_dma_handle_t *handle, i2c_master_dma_transfer_callback_t callback, void *userData, dma_handle_t *dmaHandle)

Initializes the I2C handle which is used in transactional functions.

Parameters:

base – I2C peripheral base address
handle – Pointer to the i2c_master_dma_handle_t structure
callback – Pointer to the user callback function
userData – A user parameter passed to the callback function
dmaHandle – DMA handle pointer

status_t I2C_MasterTransferDMA(I2C_Type *base, i2c_master_dma_handle_t *handle, i2c_master_transfer_t *xfer)

Performs a master DMA non-blocking transfer on the I2C bus.

Parameters:

base – I2C peripheral base address
handle – A pointer to the i2c_master_dma_handle_t structure
xfer – A pointer to the transfer structure of the i2c_master_transfer_t

Return values:

kStatus_Success – Successfully completes the data transmission.
kStatus_I2C_Busy – A previous transmission is still not finished.
kStatus_I2C_Timeout – A transfer error, waits for the signal timeout.
kStatus_I2C_ArbitrationLost – A transfer error, arbitration lost.
kStataus_I2C_Nak – A transfer error, receives NAK during transfer.

status_t I2C_MasterTransferGetCountDMA(I2C_Type *base, i2c_master_dma_handle_t *handle, size_t *count)

Gets a master transfer status during a DMA non-blocking transfer.

Parameters:

base – I2C peripheral base address
handle – A pointer to the i2c_master_dma_handle_t structure
count – A number of bytes transferred so far by the non-blocking transaction.

void I2C_MasterTransferAbortDMA(I2C_Type *base, i2c_master_dma_handle_t *handle)

Aborts a master DMA non-blocking transfer early.

Parameters:

base – I2C peripheral base address
handle – A pointer to the i2c_master_dma_handle_t structure.

FSL_I2C_DMA_DRIVER_VERSION: I2C DMA driver version.

typedef struct _i2c_master_dma_handle i2c_master_dma_handle_t

Retry times for waiting flag.

I2C master DMA handle typedef.

typedef void (*i2c_master_dma_transfer_callback_t)(I2C_Type *base, i2c_master_dma_handle_t *handle, status_t status, void *userData): I2C master DMA transfer callback typedef.

struct _i2c_master_dma_handle

#include <fsl_i2c_dma.h>

I2C master DMA transfer structure.

Public Members

i2c_master_transfer_t transfer: I2C master transfer struct.

size_t transferSize: Total bytes to be transferred.

uint8_t state: I2C master transfer status.

dma_handle_t *dmaHandle: The DMA handler used.

i2c_master_dma_transfer_callback_t completionCallback: A callback function called after the DMA transfer finished.

void *userData: A callback parameter passed to the callback function.

I2C Driver

void I2C_MasterInit(I2C_Type *base, const i2c_master_config_t *masterConfig, uint32_t srcClock_Hz)

Initializes the I2C peripheral. Call this API to ungate the I2C clock and configure the I2C with master configuration.

Note

This API should be called at the beginning of the application. Otherwise, any operation to the I2C module can cause a hard fault because the clock is not enabled. The configuration structure can be custom filled or it can be set with default values by using the I2C_MasterGetDefaultConfig(). After calling this API, the master is ready to transfer. This is an example.

i2c_master_config_t config = {
.enableMaster = true,
.enableStopHold = false,
.highDrive = false,
.baudRate_Bps = 100000,
.glitchFilterWidth = 0
};
I2C_MasterInit(I2C0, &config, 12000000U);

Parameters:

base – I2C base pointer
masterConfig – A pointer to the master configuration structure
srcClock_Hz – I2C peripheral clock frequency in Hz

void I2C_SlaveInit(I2C_Type *base, const i2c_slave_config_t *slaveConfig, uint32_t srcClock_Hz)

Initializes the I2C peripheral. Call this API to ungate the I2C clock and initialize the I2C with the slave configuration.

Note

This API should be called at the beginning of the application. Otherwise, any operation to the I2C module can cause a hard fault because the clock is not enabled. The configuration structure can partly be set with default values by I2C_SlaveGetDefaultConfig() or it can be custom filled by the user. This is an example.

i2c_slave_config_t config = {
.enableSlave = true,
.enableGeneralCall = false,
.addressingMode = kI2C_Address7bit,
.slaveAddress = 0x1DU,
.enableWakeUp = false,
.enablehighDrive = false,
.enableBaudRateCtl = false,
.sclStopHoldTime_ns = 4000
};
I2C_SlaveInit(I2C0, &config, 12000000U);

Parameters:

base – I2C base pointer
slaveConfig – A pointer to the slave configuration structure
srcClock_Hz – I2C peripheral clock frequency in Hz

void I2C_MasterDeinit(I2C_Type *base)

De-initializes the I2C master peripheral. Call this API to gate the I2C clock. The I2C master module can’t work unless the I2C_MasterInit is called.

Parameters:

base – I2C base pointer

void I2C_SlaveDeinit(I2C_Type *base)

De-initializes the I2C slave peripheral. Calling this API gates the I2C clock. The I2C slave module can’t work unless the I2C_SlaveInit is called to enable the clock.

Parameters:

base – I2C base pointer

uint32_t I2C_GetInstance(I2C_Type *base)

Get instance number for I2C module.

Parameters:

base – I2C peripheral base address.

void I2C_MasterGetDefaultConfig(i2c_master_config_t *masterConfig)

Sets the I2C master configuration structure to default values.

The purpose of this API is to get the configuration structure initialized for use in the I2C_MasterConfigure(). Use the initialized structure unchanged in the I2C_MasterConfigure() or modify the structure before calling the I2C_MasterConfigure(). This is an example.

i2c_master_config_t config;
I2C_MasterGetDefaultConfig(&config);

Parameters:

masterConfig – A pointer to the master configuration structure.

void I2C_SlaveGetDefaultConfig(i2c_slave_config_t *slaveConfig)

Sets the I2C slave configuration structure to default values.

The purpose of this API is to get the configuration structure initialized for use in the I2C_SlaveConfigure(). Modify fields of the structure before calling the I2C_SlaveConfigure(). This is an example.

i2c_slave_config_t config;
I2C_SlaveGetDefaultConfig(&config);

Parameters:

slaveConfig – A pointer to the slave configuration structure.

static inline void I2C_Enable(I2C_Type *base, bool enable)

Enables or disables the I2C peripheral operation.

Parameters:

base – I2C base pointer
enable – Pass true to enable and false to disable the module.

uint32_t I2C_MasterGetStatusFlags(I2C_Type *base)

Gets the I2C status flags.

Parameters:

base – I2C base pointer

Returns:

status flag, use status flag to AND _i2c_flags to get the related status.

static inline uint32_t I2C_SlaveGetStatusFlags(I2C_Type *base)

Gets the I2C status flags.

Parameters:

base – I2C base pointer

Returns:

status flag, use status flag to AND _i2c_flags to get the related status.

static inline void I2C_MasterClearStatusFlags(I2C_Type *base, uint32_t statusMask)

Clears the I2C status flag state.

The following status register flags can be cleared kI2C_ArbitrationLostFlag and kI2C_IntPendingFlag.

Parameters:

base – I2C base pointer
statusMask – The status flag mask, defined in type i2c_status_flag_t. The parameter can be any combination of the following values:
- kI2C_StartDetectFlag (if available)
- kI2C_StopDetectFlag (if available)
- kI2C_ArbitrationLostFlag
- kI2C_IntPendingFlagFlag

static inline void I2C_SlaveClearStatusFlags(I2C_Type *base, uint32_t statusMask)

Clears the I2C status flag state.

The following status register flags can be cleared kI2C_ArbitrationLostFlag and kI2C_IntPendingFlag

Parameters:

base – I2C base pointer
statusMask – The status flag mask, defined in type i2c_status_flag_t. The parameter can be any combination of the following values:
- kI2C_StartDetectFlag (if available)
- kI2C_StopDetectFlag (if available)
- kI2C_ArbitrationLostFlag
- kI2C_IntPendingFlagFlag

void I2C_EnableInterrupts(I2C_Type *base, uint32_t mask)

Enables I2C interrupt requests.

Parameters:

base – I2C base pointer
mask – interrupt source The parameter can be combination of the following source if defined:
- kI2C_GlobalInterruptEnable
- kI2C_StopDetectInterruptEnable/kI2C_StartDetectInterruptEnable
- kI2C_SdaTimeoutInterruptEnable

void I2C_DisableInterrupts(I2C_Type *base, uint32_t mask)

Disables I2C interrupt requests.

Parameters:

base – I2C base pointer
mask – interrupt source The parameter can be combination of the following source if defined:
- kI2C_GlobalInterruptEnable
- kI2C_StopDetectInterruptEnable/kI2C_StartDetectInterruptEnable
- kI2C_SdaTimeoutInterruptEnable

static inline void I2C_EnableDMA(I2C_Type *base, bool enable)

Enables/disables the I2C DMA interrupt.

Parameters:

base – I2C base pointer
enable – true to enable, false to disable

static inline uint32_t I2C_GetDataRegAddr(I2C_Type *base)

Gets the I2C tx/rx data register address. This API is used to provide a transfer address for I2C DMA transfer configuration.

Parameters:

base – I2C base pointer

Returns:

data register address

void I2C_MasterSetBaudRate(I2C_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz)

Sets the I2C master transfer baud rate.

Parameters:

base – I2C base pointer
baudRate_Bps – the baud rate value in bps
srcClock_Hz – Source clock

status_t I2C_MasterStart(I2C_Type *base, uint8_t address, i2c_direction_t direction)

Sends a START on the I2C bus.

This function is used to initiate a new master mode transfer by sending the START signal. The slave address is sent following the I2C START signal.

Parameters:

base – I2C peripheral base pointer
address – 7-bit slave device address.
direction – Master transfer directions(transmit/receive).

Return values:

kStatus_Success – Successfully send the start signal.
kStatus_I2C_Busy – Current bus is busy.

status_t I2C_MasterStop(I2C_Type *base)

Sends a STOP signal on the I2C bus.

Return values:

kStatus_Success – Successfully send the stop signal.
kStatus_I2C_Timeout – Send stop signal failed, timeout.

status_t I2C_MasterRepeatedStart(I2C_Type *base, uint8_t address, i2c_direction_t direction)

Sends a REPEATED START on the I2C bus.

Parameters:

base – I2C peripheral base pointer
address – 7-bit slave device address.
direction – Master transfer directions(transmit/receive).

Return values:

kStatus_Success – Successfully send the start signal.
kStatus_I2C_Busy – Current bus is busy but not occupied by current I2C master.

status_t I2C_MasterWriteBlocking(I2C_Type *base, const uint8_t *txBuff, size_t txSize, uint32_t flags)

Performs a polling send transaction on the I2C bus.

Parameters:

base – The I2C peripheral base pointer.
txBuff – The pointer to the data to be transferred.
txSize – The length in bytes of the data to be transferred.
flags – Transfer control flag to decide whether need to send a stop, use kI2C_TransferDefaultFlag to issue a stop and kI2C_TransferNoStop to not send a stop.

Return values:

kStatus_Success – Successfully complete the data transmission.
kStatus_I2C_ArbitrationLost – Transfer error, arbitration lost.
kStataus_I2C_Nak – Transfer error, receive NAK during transfer.

status_t I2C_MasterReadBlocking(I2C_Type *base, uint8_t *rxBuff, size_t rxSize, uint32_t flags)

Performs a polling receive transaction on the I2C bus.

Note

The I2C_MasterReadBlocking function stops the bus before reading the final byte. Without stopping the bus prior for the final read, the bus issues another read, resulting in garbage data being read into the data register.

Parameters:

base – I2C peripheral base pointer.
rxBuff – The pointer to the data to store the received data.
rxSize – The length in bytes of the data to be received.
flags – Transfer control flag to decide whether need to send a stop, use kI2C_TransferDefaultFlag to issue a stop and kI2C_TransferNoStop to not send a stop.

Return values:

kStatus_Success – Successfully complete the data transmission.
kStatus_I2C_Timeout – Send stop signal failed, timeout.

status_t I2C_SlaveWriteBlocking(I2C_Type *base, const uint8_t *txBuff, size_t txSize)

Performs a polling send transaction on the I2C bus.

Parameters:

base – The I2C peripheral base pointer.
txBuff – The pointer to the data to be transferred.
txSize – The length in bytes of the data to be transferred.

Return values:

kStatus_Success – Successfully complete the data transmission.
kStatus_I2C_ArbitrationLost – Transfer error, arbitration lost.
kStataus_I2C_Nak – Transfer error, receive NAK during transfer.

status_t I2C_SlaveReadBlocking(I2C_Type *base, uint8_t *rxBuff, size_t rxSize)

Performs a polling receive transaction on the I2C bus.

Parameters:

base – I2C peripheral base pointer.
rxBuff – The pointer to the data to store the received data.
rxSize – The length in bytes of the data to be received.

Return values:

kStatus_Success – Successfully complete data receive.
kStatus_I2C_Timeout – Wait status flag timeout.

status_t I2C_MasterTransferBlocking(I2C_Type *base, i2c_master_transfer_t *xfer)

Performs a master polling transfer on the I2C bus.

Note

The API does not return until the transfer succeeds or fails due to arbitration lost or receiving a NAK.

Parameters:

base – I2C peripheral base address.
xfer – Pointer to the transfer structure.

Return values:

kStatus_Success – Successfully complete the data transmission.
kStatus_I2C_Busy – Previous transmission still not finished.
kStatus_I2C_Timeout – Transfer error, wait signal timeout.
kStatus_I2C_ArbitrationLost – Transfer error, arbitration lost.
kStataus_I2C_Nak – Transfer error, receive NAK during transfer.

void I2C_MasterTransferCreateHandle(I2C_Type *base, i2c_master_handle_t *handle, i2c_master_transfer_callback_t callback, void *userData)

Initializes the I2C handle which is used in transactional functions.

Parameters:

base – I2C base pointer.
handle – pointer to i2c_master_handle_t structure to store the transfer state.
callback – pointer to user callback function.
userData – user parameter passed to the callback function.

status_t I2C_MasterTransferNonBlocking(I2C_Type *base, i2c_master_handle_t *handle, i2c_master_transfer_t *xfer)

Performs a master interrupt non-blocking transfer on the I2C bus.

Note

Calling the API returns immediately after transfer initiates. The user needs to call I2C_MasterGetTransferCount to poll the transfer status to check whether the transfer is finished. If the return status is not kStatus_I2C_Busy, the transfer is finished.

Parameters:

base – I2C base pointer.
handle – pointer to i2c_master_handle_t structure which stores the transfer state.
xfer – pointer to i2c_master_transfer_t structure.

Return values:

kStatus_Success – Successfully start the data transmission.
kStatus_I2C_Busy – Previous transmission still not finished.
kStatus_I2C_Timeout – Transfer error, wait signal timeout.

status_t I2C_MasterTransferGetCount(I2C_Type *base, i2c_master_handle_t *handle, size_t *count)

Gets the master transfer status during a interrupt non-blocking transfer.

Parameters:

base – I2C base pointer.
handle – pointer to i2c_master_handle_t structure which stores the transfer state.
count – Number of bytes transferred so far by the non-blocking transaction.

Return values:

kStatus_InvalidArgument – count is Invalid.
kStatus_Success – Successfully return the count.

status_t I2C_MasterTransferAbort(I2C_Type *base, i2c_master_handle_t *handle)

Aborts an interrupt non-blocking transfer early.

Note

This API can be called at any time when an interrupt non-blocking transfer initiates to abort the transfer early.

Parameters:

base – I2C base pointer.
handle – pointer to i2c_master_handle_t structure which stores the transfer state

Return values:

kStatus_I2C_Timeout – Timeout during polling flag.
kStatus_Success – Successfully abort the transfer.

void I2C_MasterTransferHandleIRQ(I2C_Type *base, void *i2cHandle)

Master interrupt handler.

Parameters:

base – I2C base pointer.
i2cHandle – pointer to i2c_master_handle_t structure.

void I2C_SlaveTransferCreateHandle(I2C_Type *base, i2c_slave_handle_t *handle, i2c_slave_transfer_callback_t callback, void *userData)

Initializes the I2C handle which is used in transactional functions.

Parameters:

base – I2C base pointer.
handle – pointer to i2c_slave_handle_t structure to store the transfer state.
callback – pointer to user callback function.
userData – user parameter passed to the callback function.

status_t I2C_SlaveTransferNonBlocking(I2C_Type *base, i2c_slave_handle_t *handle, uint32_t eventMask)

Starts accepting slave transfers.

Call this API after calling the I2C_SlaveInit() and I2C_SlaveTransferCreateHandle() to start processing transactions driven by an I2C master. The slave monitors the I2C bus and passes events to the callback that was passed into the call to I2C_SlaveTransferCreateHandle(). The callback is always invoked from the interrupt context.

The set of events received by the callback is customizable. To do so, set the eventMask parameter to the OR’d combination of i2c_slave_transfer_event_t enumerators for the events you wish to receive. The kI2C_SlaveTransmitEvent and kLPI2C_SlaveReceiveEvent events are always enabled and do not need to be included in the mask. Alternatively, pass 0 to get a default set of only the transmit and receive events that are always enabled. In addition, the kI2C_SlaveAllEvents constant is provided as a convenient way to enable all events.

Parameters:

base – The I2C peripheral base address.
handle – Pointer to i2c_slave_handle_t structure which stores the transfer state.
eventMask – Bit mask formed by OR’ing together i2c_slave_transfer_event_t enumerators to specify which events to send to the callback. Other accepted values are 0 to get a default set of only the transmit and receive events, and kI2C_SlaveAllEvents to enable all events.

Return values:

kStatus_Success – Slave transfers were successfully started.
kStatus_I2C_Busy – Slave transfers have already been started on this handle.

void I2C_SlaveTransferAbort(I2C_Type *base, i2c_slave_handle_t *handle)

Aborts the slave transfer.

Note

This API can be called at any time to stop slave for handling the bus events.

Parameters:

base – I2C base pointer.
handle – pointer to i2c_slave_handle_t structure which stores the transfer state.

status_t I2C_SlaveTransferGetCount(I2C_Type *base, i2c_slave_handle_t *handle, size_t *count)

Gets the slave transfer remaining bytes during a interrupt non-blocking transfer.

Parameters:

base – I2C base pointer.
handle – pointer to i2c_slave_handle_t structure.
count – Number of bytes transferred so far by the non-blocking transaction.

Return values:

kStatus_InvalidArgument – count is Invalid.
kStatus_Success – Successfully return the count.

void I2C_SlaveTransferHandleIRQ(I2C_Type *base, void *i2cHandle)

Slave interrupt handler.

Parameters:

base – I2C base pointer.
i2cHandle – pointer to i2c_slave_handle_t structure which stores the transfer state

FSL_I2C_DRIVER_VERSION: I2C driver version.

I2C status return codes.

Values:

enumerator kStatus_I2C_Busy: I2C is busy with current transfer.

enumerator kStatus_I2C_Idle: Bus is Idle.

enumerator kStatus_I2C_Nak: NAK received during transfer.

enumerator kStatus_I2C_ArbitrationLost: Arbitration lost during transfer.

enumerator kStatus_I2C_Timeout: Timeout polling status flags.

enumerator kStatus_I2C_Addr_Nak: NAK received during the address probe.

enum _i2c_flags

I2C peripheral flags.

Note

These enumerations are meant to be OR’d together to form a bit mask.

Values:

enumerator kI2C_ReceiveNakFlag: I2C receive NAK flag.

enumerator kI2C_IntPendingFlag: I2C interrupt pending flag. This flag can be cleared.

enumerator kI2C_TransferDirectionFlag: I2C transfer direction flag.

enumerator kI2C_RangeAddressMatchFlag: I2C range address match flag.

enumerator kI2C_ArbitrationLostFlag: I2C arbitration lost flag. This flag can be cleared.

enumerator kI2C_BusBusyFlag: I2C bus busy flag.

enumerator kI2C_AddressMatchFlag: I2C address match flag.

enumerator kI2C_TransferCompleteFlag: I2C transfer complete flag.

enumerator kI2C_StopDetectFlag: I2C stop detect flag. This flag can be cleared.

enumerator kI2C_StartDetectFlag: I2C start detect flag. This flag can be cleared.

enum _i2c_interrupt_enable

I2C feature interrupt source.

Values:

enumerator kI2C_GlobalInterruptEnable: I2C global interrupt.

enumerator kI2C_StopDetectInterruptEnable: I2C stop detect interrupt.

enumerator kI2C_StartStopDetectInterruptEnable: I2C start&stop detect interrupt.

enum _i2c_direction

The direction of master and slave transfers.

Values:

enumerator kI2C_Write: Master transmits to the slave.

enumerator kI2C_Read: Master receives from the slave.

enum _i2c_slave_address_mode

Addressing mode.

Values:

enumerator kI2C_Address7bit: 7-bit addressing mode.

enumerator kI2C_RangeMatch: Range address match addressing mode.

enum _i2c_master_transfer_flags

I2C transfer control flag.

Values:

enumerator kI2C_TransferDefaultFlag: A transfer starts with a start signal, stops with a stop signal.

enumerator kI2C_TransferNoStartFlag: A transfer starts without a start signal, only support write only or write+read with no start flag, do not support read only with no start flag.

enumerator kI2C_TransferRepeatedStartFlag: A transfer starts with a repeated start signal.

enumerator kI2C_TransferNoStopFlag: A transfer ends without a stop signal.

enum _i2c_slave_transfer_event

Set of events sent to the callback for nonblocking slave transfers.

These event enumerations are used for two related purposes. First, a bit mask created by OR’ing together events is passed to I2C_SlaveTransferNonBlocking() to specify which events to enable. Then, when the slave callback is invoked, it is passed the current event through its transfer parameter.

Note

These enumerations are meant to be OR’d together to form a bit mask of events.

Values:

enumerator kI2C_SlaveAddressMatchEvent: Received the slave address after a start or repeated start.

enumerator kI2C_SlaveTransmitEvent: A callback is requested to provide data to transmit (slave-transmitter role).

enumerator kI2C_SlaveReceiveEvent: A callback is requested to provide a buffer in which to place received data (slave-receiver role).

enumerator kI2C_SlaveTransmitAckEvent: A callback needs to either transmit an ACK or NACK.

enumerator kI2C_SlaveStartEvent: A start/repeated start was detected.

enumerator kI2C_SlaveCompletionEvent: A stop was detected or finished transfer, completing the transfer.

enumerator kI2C_SlaveGenaralcallEvent: Received the general call address after a start or repeated start.

enumerator kI2C_SlaveAllEvents: A bit mask of all available events.

Common sets of flags used by the driver.

Values:

enumerator kClearFlags: All flags which are cleared by the driver upon starting a transfer.

enumerator kIrqFlags

typedef enum _i2c_direction i2c_direction_t: The direction of master and slave transfers.

typedef enum _i2c_slave_address_mode i2c_slave_address_mode_t: Addressing mode.

typedef enum _i2c_slave_transfer_event i2c_slave_transfer_event_t

Set of events sent to the callback for nonblocking slave transfers.

These event enumerations are used for two related purposes. First, a bit mask created by OR’ing together events is passed to I2C_SlaveTransferNonBlocking() to specify which events to enable. Then, when the slave callback is invoked, it is passed the current event through its transfer parameter.

Note

These enumerations are meant to be OR’d together to form a bit mask of events.

typedef struct _i2c_master_config i2c_master_config_t: I2C master user configuration.

typedef struct _i2c_slave_config i2c_slave_config_t: I2C slave user configuration.

typedef struct _i2c_master_handle i2c_master_handle_t: I2C master handle typedef.

typedef void (*i2c_master_transfer_callback_t)(I2C_Type *base, i2c_master_handle_t *handle, status_t status, void *userData): I2C master transfer callback typedef.

typedef struct _i2c_slave_handle i2c_slave_handle_t: I2C slave handle typedef.

typedef struct _i2c_master_transfer i2c_master_transfer_t: I2C master transfer structure.

typedef struct _i2c_slave_transfer i2c_slave_transfer_t: I2C slave transfer structure.

typedef void (*i2c_slave_transfer_callback_t)(I2C_Type *base, i2c_slave_transfer_t *xfer, void *userData): I2C slave transfer callback typedef.

I2C_RETRY_TIMES: Retry times for waiting flag.

I2C_MASTER_FACK_CONTROL: Mater Fast ack control, control if master needs to manually write ack, this is used to low the speed of transfer for SoCs with feature FSL_FEATURE_I2C_HAS_DOUBLE_BUFFERING.

I2C_HAS_STOP_DETECT

struct _i2c_master_config

#include <fsl_i2c.h>

I2C master user configuration.

Public Members

bool enableMaster: Enables the I2C peripheral at initialization time.

bool enableStopHold: Controls the stop hold enable.

bool enableDoubleBuffering: Controls double buffer enable; notice that enabling the double buffer disables the clock stretch.

uint32_t baudRate_Bps: Baud rate configuration of I2C peripheral.

uint8_t glitchFilterWidth: Controls the width of the glitch.

struct _i2c_slave_config

#include <fsl_i2c.h>

I2C slave user configuration.

Public Members

bool enableSlave: Enables the I2C peripheral at initialization time.

bool enableGeneralCall: Enables the general call addressing mode.

bool enableWakeUp: Enables/disables waking up MCU from low-power mode.

bool enableDoubleBuffering: Controls a double buffer enable; notice that enabling the double buffer disables the clock stretch.

bool enableBaudRateCtl: Enables/disables independent slave baud rate on SCL in very fast I2C modes.

uint16_t slaveAddress: A slave address configuration.

uint16_t upperAddress: A maximum boundary slave address used in a range matching mode.

i2c_slave_address_mode_t addressingMode: An addressing mode configuration of i2c_slave_address_mode_config_t.

uint32_t sclStopHoldTime_ns: the delay from the rising edge of SCL (I2C clock) to the rising edge of SDA (I2C data) while SCL is high (stop condition), SDA hold time and SCL start hold time are also configured according to the SCL stop hold time.

struct _i2c_master_transfer

#include <fsl_i2c.h>

I2C master transfer structure.

Public Members

uint32_t flags: A transfer flag which controls the transfer.

uint8_t slaveAddress: 7-bit slave address.

i2c_direction_t direction: A transfer direction, read or write.

uint32_t subaddress: A sub address. Transferred MSB first.

uint8_t subaddressSize: A size of the command buffer.

uint8_t *volatile data: A transfer buffer.

volatile size_t dataSize: A transfer size.

struct _i2c_master_handle

#include <fsl_i2c.h>

I2C master handle structure.

Public Members

i2c_master_transfer_t transfer: I2C master transfer copy.

size_t transferSize: Total bytes to be transferred.

uint8_t state: A transfer state maintained during transfer.

i2c_master_transfer_callback_t completionCallback: A callback function called when the transfer is finished.

void *userData: A callback parameter passed to the callback function.

struct _i2c_slave_transfer

#include <fsl_i2c.h>

I2C slave transfer structure.

Public Members

i2c_slave_transfer_event_t event: A reason that the callback is invoked.

uint8_t *volatile data: A transfer buffer.

volatile size_t dataSize: A transfer size.

status_t completionStatus: Success or error code describing how the transfer completed. Only applies for kI2C_SlaveCompletionEvent.

size_t transferredCount: A number of bytes actually transferred since the start or since the last repeated start.

struct _i2c_slave_handle

#include <fsl_i2c.h>

I2C slave handle structure.

Public Members

volatile bool isBusy: Indicates whether a transfer is busy.

i2c_slave_transfer_t transfer: I2C slave transfer copy.

uint32_t eventMask: A mask of enabled events.

i2c_slave_transfer_callback_t callback: A callback function called at the transfer event.

void *userData: A callback parameter passed to the callback.

Common Driver

FSL_COMMON_DRIVER_VERSION: common driver version.

DEBUG_CONSOLE_DEVICE_TYPE_NONE: No debug console.

DEBUG_CONSOLE_DEVICE_TYPE_UART: Debug console based on UART.

DEBUG_CONSOLE_DEVICE_TYPE_LPUART: Debug console based on LPUART.

DEBUG_CONSOLE_DEVICE_TYPE_LPSCI: Debug console based on LPSCI.

DEBUG_CONSOLE_DEVICE_TYPE_USBCDC: Debug console based on USBCDC.

DEBUG_CONSOLE_DEVICE_TYPE_FLEXCOMM: Debug console based on FLEXCOMM.

DEBUG_CONSOLE_DEVICE_TYPE_IUART: Debug console based on i.MX UART.

DEBUG_CONSOLE_DEVICE_TYPE_VUSART: Debug console based on LPC_VUSART.

DEBUG_CONSOLE_DEVICE_TYPE_MINI_USART: Debug console based on LPC_USART.

DEBUG_CONSOLE_DEVICE_TYPE_SWO: Debug console based on SWO.

DEBUG_CONSOLE_DEVICE_TYPE_QSCI: Debug console based on QSCI.

MIN(a, b): Computes the minimum of a and b.

MAX(a, b): Computes the maximum of a and b.

UINT16_MAX: Max value of uint16_t type.

UINT32_MAX: Max value of uint32_t type.

SDK_ATOMIC_LOCAL_ADD(addr, val): Add value val from the variable at address address.

SDK_ATOMIC_LOCAL_SUB(addr, val): Subtract value val to the variable at address address.

SDK_ATOMIC_LOCAL_SET(addr, bits): Set the bits specifiled by bits to the variable at address address.

SDK_ATOMIC_LOCAL_CLEAR(addr, bits): Clear the bits specifiled by bits to the variable at address address.

SDK_ATOMIC_LOCAL_TOGGLE(addr, bits): Toggle the bits specifiled by bits to the variable at address address.

SDK_ATOMIC_LOCAL_CLEAR_AND_SET(addr, clearBits, setBits): For the variable at address address, clear the bits specifiled by clearBits and set the bits specifiled by setBits.

SDK_ATOMIC_LOCAL_COMPARE_AND_SET(addr, expected, newValue): For the variable at address address, check whether the value equal to expected. If value same as expected then update newValue to address and return true , else return false .

SDK_ATOMIC_LOCAL_TEST_AND_SET(addr, newValue): For the variable at address address, set as newValue value and return old value.

USEC_TO_COUNT(us, clockFreqInHz): Macro to convert a microsecond period to raw count value

COUNT_TO_USEC(count, clockFreqInHz): Macro to convert a raw count value to microsecond

MSEC_TO_COUNT(ms, clockFreqInHz): Macro to convert a millisecond period to raw count value

COUNT_TO_MSEC(count, clockFreqInHz): Macro to convert a raw count value to millisecond

SDK_ISR_EXIT_BARRIER

SDK_SIZEALIGN(var, alignbytes)

Macro to define a variable with L1 d-cache line size alignment

Macro to define a variable with L2 cache line size alignment

Macro to change a value to a given size aligned value

AT_NONCACHEABLE_SECTION(var): Define a variable var, and place it in non-cacheable section.

AT_NONCACHEABLE_SECTION_ALIGN(var, alignbytes): Define a variable var, and place it in non-cacheable section, the start address of the variable is aligned to alignbytes.

AT_NONCACHEABLE_SECTION_INIT(var): Define a variable var with initial value, and place it in non-cacheable section.

AT_NONCACHEABLE_SECTION_ALIGN_INIT(var, alignbytes): Define a variable var with initial value, and place it in non-cacheable section, the start address of the variable is aligned to alignbytes.

enum _status_groups

Status group numbers.

Values:

enumerator kStatusGroup_Generic: Group number for generic status codes.

enumerator kStatusGroup_FLASH: Group number for FLASH status codes.

enumerator kStatusGroup_LPSPI: Group number for LPSPI status codes.

enumerator kStatusGroup_FLEXIO_SPI: Group number for FLEXIO SPI status codes.

enumerator kStatusGroup_DSPI: Group number for DSPI status codes.

enumerator kStatusGroup_FLEXIO_UART: Group number for FLEXIO UART status codes.

enumerator kStatusGroup_FLEXIO_I2C: Group number for FLEXIO I2C status codes.

enumerator kStatusGroup_LPI2C: Group number for LPI2C status codes.

enumerator kStatusGroup_UART: Group number for UART status codes.

enumerator kStatusGroup_I2C: Group number for UART status codes.

enumerator kStatusGroup_LPSCI: Group number for LPSCI status codes.

enumerator kStatusGroup_LPUART: Group number for LPUART status codes.

enumerator kStatusGroup_SPI: Group number for SPI status code.

enumerator kStatusGroup_XRDC: Group number for XRDC status code.

enumerator kStatusGroup_SEMA42: Group number for SEMA42 status code.

enumerator kStatusGroup_SDHC: Group number for SDHC status code

enumerator kStatusGroup_SDMMC: Group number for SDMMC status code

enumerator kStatusGroup_SAI: Group number for SAI status code

enumerator kStatusGroup_MCG: Group number for MCG status codes.

enumerator kStatusGroup_SCG: Group number for SCG status codes.

enumerator kStatusGroup_SDSPI: Group number for SDSPI status codes.

enumerator kStatusGroup_FLEXIO_I2S: Group number for FLEXIO I2S status codes

enumerator kStatusGroup_FLEXIO_MCULCD: Group number for FLEXIO LCD status codes

enumerator kStatusGroup_FLASHIAP: Group number for FLASHIAP status codes

enumerator kStatusGroup_FLEXCOMM_I2C: Group number for FLEXCOMM I2C status codes

enumerator kStatusGroup_I2S: Group number for I2S status codes

enumerator kStatusGroup_IUART: Group number for IUART status codes

enumerator kStatusGroup_CSI: Group number for CSI status codes

enumerator kStatusGroup_MIPI_DSI: Group number for MIPI DSI status codes

enumerator kStatusGroup_SDRAMC: Group number for SDRAMC status codes.

enumerator kStatusGroup_POWER: Group number for POWER status codes.

enumerator kStatusGroup_ENET: Group number for ENET status codes.

enumerator kStatusGroup_PHY: Group number for PHY status codes.

enumerator kStatusGroup_TRGMUX: Group number for TRGMUX status codes.

enumerator kStatusGroup_SMARTCARD: Group number for SMARTCARD status codes.

enumerator kStatusGroup_LMEM: Group number for LMEM status codes.

enumerator kStatusGroup_QSPI: Group number for QSPI status codes.

enumerator kStatusGroup_DMA: Group number for DMA status codes.

enumerator kStatusGroup_EDMA: Group number for EDMA status codes.

enumerator kStatusGroup_DMAMGR: Group number for DMAMGR status codes.

enumerator kStatusGroup_FLEXCAN: Group number for FlexCAN status codes.

enumerator kStatusGroup_LTC: Group number for LTC status codes.

enumerator kStatusGroup_FLEXIO_CAMERA: Group number for FLEXIO CAMERA status codes.

enumerator kStatusGroup_LPC_SPI: Group number for LPC_SPI status codes.

enumerator kStatusGroup_LPC_USART: Group number for LPC_USART status codes.

enumerator kStatusGroup_DMIC: Group number for DMIC status codes.

enumerator kStatusGroup_SDIF: Group number for SDIF status codes.

enumerator kStatusGroup_SPIFI: Group number for SPIFI status codes.

enumerator kStatusGroup_OTP: Group number for OTP status codes.

enumerator kStatusGroup_MCAN: Group number for MCAN status codes.

enumerator kStatusGroup_CAAM: Group number for CAAM status codes.

enumerator kStatusGroup_ECSPI: Group number for ECSPI status codes.

enumerator kStatusGroup_USDHC: Group number for USDHC status codes.

enumerator kStatusGroup_LPC_I2C: Group number for LPC_I2C status codes.

enumerator kStatusGroup_DCP: Group number for DCP status codes.

enumerator kStatusGroup_MSCAN: Group number for MSCAN status codes.

enumerator kStatusGroup_ESAI: Group number for ESAI status codes.

enumerator kStatusGroup_FLEXSPI: Group number for FLEXSPI status codes.

enumerator kStatusGroup_MMDC: Group number for MMDC status codes.

enumerator kStatusGroup_PDM: Group number for MIC status codes.

enumerator kStatusGroup_SDMA: Group number for SDMA status codes.

enumerator kStatusGroup_ICS: Group number for ICS status codes.

enumerator kStatusGroup_SPDIF: Group number for SPDIF status codes.

enumerator kStatusGroup_LPC_MINISPI: Group number for LPC_MINISPI status codes.

enumerator kStatusGroup_HASHCRYPT: Group number for Hashcrypt status codes

enumerator kStatusGroup_LPC_SPI_SSP: Group number for LPC_SPI_SSP status codes.

enumerator kStatusGroup_I3C: Group number for I3C status codes

enumerator kStatusGroup_LPC_I2C_1: Group number for LPC_I2C_1 status codes.

enumerator kStatusGroup_NOTIFIER: Group number for NOTIFIER status codes.

enumerator kStatusGroup_DebugConsole: Group number for debug console status codes.

enumerator kStatusGroup_SEMC: Group number for SEMC status codes.

enumerator kStatusGroup_ApplicationRangeStart: Starting number for application groups.

enumerator kStatusGroup_IAP: Group number for IAP status codes

enumerator kStatusGroup_SFA: Group number for SFA status codes

enumerator kStatusGroup_SPC: Group number for SPC status codes.

enumerator kStatusGroup_PUF: Group number for PUF status codes.

enumerator kStatusGroup_TOUCH_PANEL: Group number for touch panel status codes

enumerator kStatusGroup_VBAT: Group number for VBAT status codes

enumerator kStatusGroup_XSPI: Group number for XSPI status codes

enumerator kStatusGroup_PNGDEC: Group number for PNGDEC status codes

enumerator kStatusGroup_JPEGDEC: Group number for JPEGDEC status codes

enumerator kStatusGroup_HAL_GPIO: Group number for HAL GPIO status codes.

enumerator kStatusGroup_HAL_UART: Group number for HAL UART status codes.

enumerator kStatusGroup_HAL_TIMER: Group number for HAL TIMER status codes.

enumerator kStatusGroup_HAL_SPI: Group number for HAL SPI status codes.

enumerator kStatusGroup_HAL_I2C: Group number for HAL I2C status codes.

enumerator kStatusGroup_HAL_FLASH: Group number for HAL FLASH status codes.

enumerator kStatusGroup_HAL_PWM: Group number for HAL PWM status codes.

enumerator kStatusGroup_HAL_RNG: Group number for HAL RNG status codes.

enumerator kStatusGroup_HAL_I2S: Group number for HAL I2S status codes.

enumerator kStatusGroup_HAL_ADC_SENSOR: Group number for HAL ADC SENSOR status codes.

enumerator kStatusGroup_TIMERMANAGER: Group number for TiMER MANAGER status codes.

enumerator kStatusGroup_SERIALMANAGER: Group number for SERIAL MANAGER status codes.

enumerator kStatusGroup_LED: Group number for LED status codes.

enumerator kStatusGroup_BUTTON: Group number for BUTTON status codes.

enumerator kStatusGroup_EXTERN_EEPROM: Group number for EXTERN EEPROM status codes.

enumerator kStatusGroup_SHELL: Group number for SHELL status codes.

enumerator kStatusGroup_MEM_MANAGER: Group number for MEM MANAGER status codes.

enumerator kStatusGroup_LIST: Group number for List status codes.

enumerator kStatusGroup_OSA: Group number for OSA status codes.

enumerator kStatusGroup_COMMON_TASK: Group number for Common task status codes.

enumerator kStatusGroup_MSG: Group number for messaging status codes.

enumerator kStatusGroup_SDK_OCOTP: Group number for OCOTP status codes.

enumerator kStatusGroup_SDK_FLEXSPINOR: Group number for FLEXSPINOR status codes.

enumerator kStatusGroup_CODEC: Group number for codec status codes.

enumerator kStatusGroup_ASRC: Group number for codec status ASRC.

enumerator kStatusGroup_OTFAD: Group number for codec status codes.

enumerator kStatusGroup_SDIOSLV: Group number for SDIOSLV status codes.

enumerator kStatusGroup_MECC: Group number for MECC status codes.

enumerator kStatusGroup_ENET_QOS: Group number for ENET_QOS status codes.

enumerator kStatusGroup_LOG: Group number for LOG status codes.

enumerator kStatusGroup_I3CBUS: Group number for I3CBUS status codes.

enumerator kStatusGroup_QSCI: Group number for QSCI status codes.

enumerator kStatusGroup_ELEMU: Group number for ELEMU status codes.

enumerator kStatusGroup_QUEUEDSPI: Group number for QSPI status codes.

enumerator kStatusGroup_POWER_MANAGER: Group number for POWER_MANAGER status codes.

enumerator kStatusGroup_IPED: Group number for IPED status codes.

enumerator kStatusGroup_ELS_PKC: Group number for ELS PKC status codes.

enumerator kStatusGroup_CSS_PKC: Group number for CSS PKC status codes.

enumerator kStatusGroup_HOSTIF: Group number for HOSTIF status codes.

enumerator kStatusGroup_CLIF: Group number for CLIF status codes.

enumerator kStatusGroup_BMA: Group number for BMA status codes.

enumerator kStatusGroup_NETC: Group number for NETC status codes.

enumerator kStatusGroup_ELE: Group number for ELE status codes.

enumerator kStatusGroup_GLIKEY: Group number for GLIKEY status codes.

enumerator kStatusGroup_AON_POWER: Group number for AON_POWER status codes.

enumerator kStatusGroup_AON_COMMON: Group number for AON_COMMON status codes.

enumerator kStatusGroup_ENDAT3: Group number for ENDAT3 status codes.

enumerator kStatusGroup_HIPERFACE: Group number for HIPERFACE status codes.

Generic status return codes.

Values:

enumerator kStatus_Success: Generic status for Success.

enumerator kStatus_Fail: Generic status for Fail.

enumerator kStatus_ReadOnly: Generic status for read only failure.

enumerator kStatus_OutOfRange: Generic status for out of range access.

enumerator kStatus_InvalidArgument: Generic status for invalid argument check.

enumerator kStatus_Timeout: Generic status for timeout.

enumerator kStatus_NoTransferInProgress: Generic status for no transfer in progress.

enumerator kStatus_Busy: Generic status for module is busy.

enumerator kStatus_NoData: Generic status for no data is found for the operation.

typedef int32_t status_t: Type used for all status and error return values.

void *SDK_Malloc(size_t size, size_t alignbytes)

Allocate memory with given alignment and aligned size.

This is provided to support the dynamically allocated memory used in cache-able region.

Parameters:

size – The length required to malloc.
alignbytes – The alignment size.

Return values:

The – allocated memory.

void SDK_Free(void *ptr)

Free memory.

Parameters:

ptr – The memory to be release.

void SDK_DelayAtLeastUs(uint32_t delayTime_us, uint32_t coreClock_Hz)

Delay at least for some time. Please note that, this API uses while loop for delay, different run-time environments make the time not precise, if precise delay count was needed, please implement a new delay function with hardware timer.

Parameters:

delayTime_us – Delay time in unit of microsecond.
coreClock_Hz – Core clock frequency with Hz.

static inline status_t EnableIRQ(IRQn_Type interrupt)

Enable specific interrupt.

Enable LEVEL1 interrupt. For some devices, there might be multiple interrupt levels. For example, there are NVIC and intmux. Here the interrupts connected to NVIC are the LEVEL1 interrupts, because they are routed to the core directly. The interrupts connected to intmux are the LEVEL2 interrupts, they are routed to NVIC first then routed to core.

This function only enables the LEVEL1 interrupts. The number of LEVEL1 interrupts is indicated by the feature macro FSL_FEATURE_NUMBER_OF_LEVEL1_INT_VECTORS.

Parameters:

interrupt – The IRQ number.

Return values:

kStatus_Success – Interrupt enabled successfully
kStatus_Fail – Failed to enable the interrupt

static inline status_t DisableIRQ(IRQn_Type interrupt)

Disable specific interrupt.

Disable LEVEL1 interrupt. For some devices, there might be multiple interrupt levels. For example, there are NVIC and intmux. Here the interrupts connected to NVIC are the LEVEL1 interrupts, because they are routed to the core directly. The interrupts connected to intmux are the LEVEL2 interrupts, they are routed to NVIC first then routed to core.

This function only disables the LEVEL1 interrupts. The number of LEVEL1 interrupts is indicated by the feature macro FSL_FEATURE_NUMBER_OF_LEVEL1_INT_VECTORS.

Parameters:

interrupt – The IRQ number.

Return values:

kStatus_Success – Interrupt disabled successfully
kStatus_Fail – Failed to disable the interrupt

static inline status_t EnableIRQWithPriority(IRQn_Type interrupt, uint8_t priNum)

Enable the IRQ, and also set the interrupt priority.

Only handle LEVEL1 interrupt. For some devices, there might be multiple interrupt levels. For example, there are NVIC and intmux. Here the interrupts connected to NVIC are the LEVEL1 interrupts, because they are routed to the core directly. The interrupts connected to intmux are the LEVEL2 interrupts, they are routed to NVIC first then routed to core.

This function only handles the LEVEL1 interrupts. The number of LEVEL1 interrupts is indicated by the feature macro FSL_FEATURE_NUMBER_OF_LEVEL1_INT_VECTORS.

Parameters:

interrupt – The IRQ to Enable.
priNum – Priority number set to interrupt controller register.

Return values:

kStatus_Success – Interrupt priority set successfully
kStatus_Fail – Failed to set the interrupt priority.

static inline status_t IRQ_SetPriority(IRQn_Type interrupt, uint8_t priNum)

Set the IRQ priority.

Only handle LEVEL1 interrupt. For some devices, there might be multiple interrupt levels. For example, there are NVIC and intmux. Here the interrupts connected to NVIC are the LEVEL1 interrupts, because they are routed to the core directly. The interrupts connected to intmux are the LEVEL2 interrupts, they are routed to NVIC first then routed to core.

This function only handles the LEVEL1 interrupts. The number of LEVEL1 interrupts is indicated by the feature macro FSL_FEATURE_NUMBER_OF_LEVEL1_INT_VECTORS.

Parameters:

interrupt – The IRQ to set.
priNum – Priority number set to interrupt controller register.

Return values:

kStatus_Success – Interrupt priority set successfully
kStatus_Fail – Failed to set the interrupt priority.

static inline status_t IRQ_ClearPendingIRQ(IRQn_Type interrupt)

Clear the pending IRQ flag.

Only handle LEVEL1 interrupt. For some devices, there might be multiple interrupt levels. For example, there are NVIC and intmux. Here the interrupts connected to NVIC are the LEVEL1 interrupts, because they are routed to the core directly. The interrupts connected to intmux are the LEVEL2 interrupts, they are routed to NVIC first then routed to core.

This function only handles the LEVEL1 interrupts. The number of LEVEL1 interrupts is indicated by the feature macro FSL_FEATURE_NUMBER_OF_LEVEL1_INT_VECTORS.

Parameters:

interrupt – The flag which IRQ to clear.

Return values:

kStatus_Success – Interrupt priority set successfully
kStatus_Fail – Failed to set the interrupt priority.

static inline uint32_t DisableGlobalIRQ(void)

Disable the global IRQ.

Disable the global interrupt and return the current primask register. User is required to provided the primask register for the EnableGlobalIRQ().

Returns:: Current primask value.

static inline void EnableGlobalIRQ(uint32_t primask)

Enable the global IRQ.

Set the primask register with the provided primask value but not just enable the primask. The idea is for the convenience of integration of RTOS. some RTOS get its own management mechanism of primask. User is required to use the EnableGlobalIRQ() and DisableGlobalIRQ() in pair.

Parameters:

primask – value of primask register to be restored. The primask value is supposed to be provided by the DisableGlobalIRQ().

static inline bool _SDK_AtomicLocalCompareAndSet(uint32_t *addr, uint32_t expected, uint32_t newValue)

static inline uint32_t _SDK_AtomicTestAndSet(uint32_t *addr, uint32_t newValue)

FSL_DRIVER_TRANSFER_DOUBLE_WEAK_IRQ: Macro to use the default weak IRQ handler in drivers.

MAKE_STATUS(group, code): Construct a status code value from a group and code number.

MAKE_VERSION(major, minor, bugfix)

Construct the version number for drivers.

The driver version is a 32-bit number, for both 32-bit platforms(such as Cortex M) and 16-bit platforms(such as DSC).

| Unused    || Major Version || Minor Version ||  Bug Fix    |
31        25  24           17  16            9  8            0

ARRAY_SIZE(x): Computes the number of elements in an array.

UINT64_H(X): Macro to get upper 32 bits of a 64-bit value

UINT64_L(X): Macro to get lower 32 bits of a 64-bit value

SUPPRESS_FALL_THROUGH_WARNING(): For switch case code block, if case section ends without “break;” statement, there wil be fallthrough warning with compiler flag -Wextra or -Wimplicit-fallthrough=n when using armgcc. To suppress this warning, “SUPPRESS_FALL_THROUGH_WARNING();” need to be added at the end of each case section which misses “break;”statement.

MSDK_REG_SECURE_ADDR(x): Convert the register address to the one used in secure mode.

MSDK_REG_NONSECURE_ADDR(x): Convert the register address to the one used in non-secure mode.

Lin_lpuart_driver

FSL_LIN_LPUART_DRIVER_VERSION: LIN LPUART driver version.

enum _lin_lpuart_stop_bit_count

Values:

enumerator kLPUART_OneStopBit: One stop bit

enumerator kLPUART_TwoStopBit: Two stop bits

enum _lin_lpuart_flags

Values:

enumerator kLPUART_TxDataRegEmptyFlag: Transmit data register empty flag, sets when transmit buffer is empty

enumerator kLPUART_TransmissionCompleteFlag: Transmission complete flag, sets when transmission activity complete

enumerator kLPUART_RxDataRegFullFlag: Receive data register full flag, sets when the receive data buffer is full

enumerator kLPUART_IdleLineFlag: Idle line detect flag, sets when idle line detected

enumerator kLPUART_RxOverrunFlag: Receive Overrun, sets when new data is received before data is read from receive register

enumerator kLPUART_NoiseErrorFlag: Receive takes 3 samples of each received bit. If any of these samples differ, noise flag sets

enumerator kLPUART_FramingErrorFlag: Frame error flag, sets if logic 0 was detected where stop bit expected

enumerator kLPUART_ParityErrorFlag: If parity enabled, sets upon parity error detection

enumerator kLPUART_LinBreakFlag: LIN break detect interrupt flag, sets when LIN break char detected and LIN circuit enabled

enumerator kLPUART_RxActiveEdgeFlag: Receive pin active edge interrupt flag, sets when active edge detected

enumerator kLPUART_RxActiveFlag: Receiver Active Flag (RAF), sets at beginning of valid start bit

enumerator kLPUART_DataMatch1Flag: The next character to be read from LPUART_DATA matches MA1

enumerator kLPUART_DataMatch2Flag: The next character to be read from LPUART_DATA matches MA2

enumerator kLPUART_NoiseErrorInRxDataRegFlag: NOISY bit, sets if noise detected in current data word

enumerator kLPUART_ParityErrorInRxDataRegFlag: PARITY bit, sets if noise detected in current data word

enumerator kLPUART_TxFifoEmptyFlag: TXEMPT bit, sets if transmit buffer is empty

enumerator kLPUART_RxFifoEmptyFlag: RXEMPT bit, sets if receive buffer is empty

enumerator kLPUART_TxFifoOverflowFlag: TXOF bit, sets if transmit buffer overflow occurred

enumerator kLPUART_RxFifoUnderflowFlag: RXUF bit, sets if receive buffer underflow occurred

enum _lin_lpuart_interrupt_enable

Values:

enumerator kLPUART_LinBreakInterruptEnable: LIN break detect.

enumerator kLPUART_RxActiveEdgeInterruptEnable: Receive Active Edge.

enumerator kLPUART_TxDataRegEmptyInterruptEnable: Transmit data register empty.

enumerator kLPUART_TransmissionCompleteInterruptEnable: Transmission complete.

enumerator kLPUART_RxDataRegFullInterruptEnable: Receiver data register full.

enumerator kLPUART_IdleLineInterruptEnable: Idle line.

enumerator kLPUART_RxOverrunInterruptEnable: Receiver Overrun.

enumerator kLPUART_NoiseErrorInterruptEnable: Noise error flag.

enumerator kLPUART_FramingErrorInterruptEnable: Framing error flag.

enumerator kLPUART_ParityErrorInterruptEnable: Parity error flag.

enumerator kLPUART_TxFifoOverflowInterruptEnable: Transmit FIFO Overflow.

enumerator kLPUART_RxFifoUnderflowInterruptEnable: Receive FIFO Underflow.

enum _lin_lpuart_status

Values:

enumerator kStatus_LPUART_TxBusy: TX busy

enumerator kStatus_LPUART_RxBusy: RX busy

enumerator kStatus_LPUART_TxIdle: LPUART transmitter is idle.

enumerator kStatus_LPUART_RxIdle: LPUART receiver is idle.

enumerator kStatus_LPUART_TxWatermarkTooLarge: TX FIFO watermark too large

enumerator kStatus_LPUART_RxWatermarkTooLarge: RX FIFO watermark too large

enumerator kStatus_LPUART_FlagCannotClearManually: Some flag can’t manually clear

enumerator kStatus_LPUART_Error: Error happens on LPUART.

enumerator kStatus_LPUART_RxRingBufferOverrun: LPUART RX software ring buffer overrun.

enumerator kStatus_LPUART_RxHardwareOverrun: LPUART RX receiver overrun.

enumerator kStatus_LPUART_NoiseError: LPUART noise error.

enumerator kStatus_LPUART_FramingError: LPUART framing error.

enumerator kStatus_LPUART_ParityError: LPUART parity error.

enum lin_lpuart_bit_count_per_char_t

Values:

enumerator LPUART_8_BITS_PER_CHAR: 8-bit data characters

enumerator LPUART_9_BITS_PER_CHAR: 9-bit data characters

enumerator LPUART_10_BITS_PER_CHAR: 10-bit data characters

typedef enum _lin_lpuart_stop_bit_count lin_lpuart_stop_bit_count_t

static inline bool LIN_LPUART_GetRxDataPolarity(const LPUART_Type *base)

static inline void LIN_LPUART_SetRxDataPolarity(LPUART_Type *base, bool polarity)

static inline void LIN_LPUART_WriteByte(LPUART_Type *base, uint8_t data)

static inline void LIN_LPUART_ReadByte(const LPUART_Type *base, uint8_t *readData)

status_t LIN_LPUART_CalculateBaudRate(LPUART_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz, uint32_t *osr, uint16_t *sbr)

Calculates the best osr and sbr value for configured baudrate.

Parameters:

base – LPUART peripheral base address
baudRate_Bps – user configuration structure of type #lin_user_config_t
srcClock_Hz – pointer to the LIN_LPUART driver state structure
osr – pointer to osr value
sbr – pointer to sbr value

Returns:

An error code or lin_status_t

void LIN_LPUART_SetBaudRate(LPUART_Type *base, uint32_t *osr, uint16_t *sbr)

Configure baudrate according to osr and sbr value.

Parameters:

base – LPUART peripheral base address
osr – pointer to osr value
sbr – pointer to sbr value

lin_status_t LIN_LPUART_Init(LPUART_Type *base, lin_user_config_t *linUserConfig, lin_state_t *linCurrentState, uint32_t linSourceClockFreq)

Initializes an LIN_LPUART instance for LIN Network.

The caller provides memory for the driver state structures during initialization. The user must select the LIN_LPUART clock source in the application to initialize the LIN_LPUART. This function initializes a LPUART instance for operation. This function will initialize the run-time state structure to keep track of the on-going transfers, initialize the module to user defined settings and default settings, set break field length to be 13 bit times minimum, enable the break detect interrupt, Rx complete interrupt, frame error detect interrupt, and enable the LPUART module transmitter and receiver

Parameters:

base – LPUART peripheral base address
linUserConfig – user configuration structure of type #lin_user_config_t
linCurrentState – pointer to the LIN_LPUART driver state structure

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_Deinit(LPUART_Type *base)

Shuts down the LIN_LPUART by disabling interrupts and transmitter/receiver.

Parameters:

base – LPUART peripheral base address

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_SendFrameDataBlocking(LPUART_Type *base, const uint8_t *txBuff, uint8_t txSize, uint32_t timeoutMSec)

Sends Frame data out through the LIN_LPUART module using blocking method. This function will calculate the checksum byte and send it with the frame data. Blocking means that the function does not return until the transmission is complete.

Parameters:

base – LPUART peripheral base address
txBuff – source buffer containing 8-bit data chars to send
txSize – the number of bytes to send
timeoutMSec – timeout value in milli seconds

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_SendFrameData(LPUART_Type *base, const uint8_t *txBuff, uint8_t txSize)

Sends frame data out through the LIN_LPUART module using non-blocking method. This enables an a-sync method for transmitting data. Non-blocking means that the function returns immediately. The application has to get the transmit status to know when the transmit is complete. This function will calculate the checksum byte and send it with the frame data.

Parameters:

base – LPUART peripheral base address
txBuff – source buffer containing 8-bit data chars to send
txSize – the number of bytes to send

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_GetTransmitStatus(LPUART_Type *base, uint8_t *bytesRemaining)

Get status of an on-going non-blocking transmission While sending frame data using non-blocking method, users can use this function to get status of that transmission. This function return LIN_TX_BUSY while sending, or LIN_TIMEOUT if timeout has occurred, or return LIN_SUCCESS when the transmission is complete. The bytesRemaining shows number of bytes that still needed to transmit.

Parameters:

base – LPUART peripheral base address
bytesRemaining – Number of bytes still needed to transmit

Returns:

lin_status_t LIN_TX_BUSY, LIN_SUCCESS or LIN_TIMEOUT

lin_status_t LIN_LPUART_RecvFrmDataBlocking(LPUART_Type *base, uint8_t *rxBuff, uint8_t rxSize, uint32_t timeoutMSec)

Receives frame data through the LIN_LPUART module using blocking method. This function will check the checksum byte. If the checksum is correct, it will receive the frame data. Blocking means that the function does not return until the reception is complete.

Parameters:

base – LPUART peripheral base address
rxBuff – buffer containing 8-bit received data
rxSize – the number of bytes to receive
timeoutMSec – timeout value in milli seconds

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_RecvFrmData(LPUART_Type *base, uint8_t *rxBuff, uint8_t rxSize)

Receives frame data through the LIN_LPUART module using non-blocking method. This function will check the checksum byte. If the checksum is correct, it will receive it with the frame data. Non-blocking means that the function returns immediately. The application has to get the receive status to know when the reception is complete.

Parameters:

base – LPUART peripheral base address
rxBuff – buffer containing 8-bit received data
rxSize – the number of bytes to receive

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_AbortTransferData(LPUART_Type *base)

Aborts an on-going non-blocking transmission/reception. While performing a non-blocking transferring data, users can call this function to terminate immediately the transferring.

Parameters:

base – LPUART peripheral base address

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_GetReceiveStatus(LPUART_Type *base, uint8_t *bytesRemaining)

Get status of an on-going non-blocking reception While receiving frame data using non-blocking method, users can use this function to get status of that receiving. This function return the current event ID, LIN_RX_BUSY while receiving and return LIN_SUCCESS, or timeout (LIN_TIMEOUT) when the reception is complete. The bytesRemaining shows number of bytes that still needed to receive.

Parameters:

base – LPUART peripheral base address
bytesRemaining – Number of bytes still needed to receive

Returns:

lin_status_t LIN_RX_BUSY, LIN_TIMEOUT or LIN_SUCCESS

lin_status_t LIN_LPUART_GoToSleepMode(LPUART_Type *base)

This function puts current node to sleep mode This function changes current node state to LIN_NODE_STATE_SLEEP_MODE.

Parameters:

base – LPUART peripheral base address

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_GotoIdleState(LPUART_Type *base)

Puts current LIN node to Idle state This function changes current node state to LIN_NODE_STATE_IDLE.

Parameters:

base – LPUART peripheral base address

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_SendWakeupSignal(LPUART_Type *base)

Sends a wakeup signal through the LIN_LPUART interface.

Parameters:

base – LPUART peripheral base address

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_MasterSendHeader(LPUART_Type *base, uint8_t id)

Sends frame header out through the LIN_LPUART module using a non-blocking method. This function sends LIN Break field, sync field then the ID with correct parity.

Parameters:

base – LPUART peripheral base address
id – Frame Identifier

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_EnableIRQ(LPUART_Type *base)

Enables LIN_LPUART hardware interrupts.

Parameters:

base – LPUART peripheral base address

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_DisableIRQ(LPUART_Type *base)

Disables LIN_LPUART hardware interrupts.

Parameters:

base – LPUART peripheral base address

Returns:

An error code or lin_status_t

lin_status_t LIN_LPUART_AutoBaudCapture(uint32_t instance)

This function capture bits time to detect break char, calculate baudrate from sync bits and enable transceiver if autobaud successful. This function should only be used in Slave. The timer should be in mode input capture of both rising and falling edges. The timer input capture pin should be externally connected to RXD pin.

Parameters:

instance – LPUART instance

Returns:

lin_status_t

void LIN_LPUART_IRQHandler(LPUART_Type *base)

LIN_LPUART RX TX interrupt handler.

Parameters:

base – LPUART peripheral base address

Returns:

void

AUTOBAUD_BAUDRATE_TOLERANCE

BIT_RATE_TOLERANCE_UNSYNC

BIT_DURATION_MAX_19200

BIT_DURATION_MIN_19200

BIT_DURATION_MAX_14400

BIT_DURATION_MIN_14400

BIT_DURATION_MAX_9600

BIT_DURATION_MIN_9600

BIT_DURATION_MAX_4800

BIT_DURATION_MIN_4800

BIT_DURATION_MAX_2400

BIT_DURATION_MIN_2400

TWO_BIT_DURATION_MAX_19200

TWO_BIT_DURATION_MIN_19200

TWO_BIT_DURATION_MAX_14400

TWO_BIT_DURATION_MIN_14400

TWO_BIT_DURATION_MAX_9600

TWO_BIT_DURATION_MIN_9600

TWO_BIT_DURATION_MAX_4800

TWO_BIT_DURATION_MIN_4800

TWO_BIT_DURATION_MAX_2400

TWO_BIT_DURATION_MIN_2400

AUTOBAUD_BREAK_TIME_MIN

LLWU: Low-Leakage Wakeup Unit Driver

static inline void LLWU_GetVersionId(LLWU_Type *base, llwu_version_id_t *versionId)

Gets the LLWU version ID.

This function gets the LLWU version ID, including the major version number, the minor version number, and the feature specification number.

Parameters:

base – LLWU peripheral base address.
versionId – A pointer to the version ID structure.

static inline void LLWU_GetParam(LLWU_Type *base, llwu_param_t *param)

Gets the LLWU parameter.

This function gets the LLWU parameter, including a wakeup pin number, a module number, a DMA number, and a pin filter number.

Parameters:

base – LLWU peripheral base address.
param – A pointer to the LLWU parameter structure.

void LLWU_SetExternalWakeupPinMode(LLWU_Type *base, uint32_t pinIndex, llwu_external_pin_mode_t pinMode)

Sets the external input pin source mode.

This function sets the external input pin source mode that is used as a wake up source.

Parameters:

base – LLWU peripheral base address.
pinIndex – A pin index to be enabled as an external wakeup source starting from 1.
pinMode – A pin configuration mode defined in the llwu_external_pin_modes_t.

bool LLWU_GetExternalWakeupPinFlag(LLWU_Type *base, uint32_t pinIndex)

Gets the external wakeup source flag.

This function checks the external pin flag to detect whether the MCU is woken up by the specific pin.

Parameters:

base – LLWU peripheral base address.
pinIndex – A pin index, which starts from 1.

Returns:

True if the specific pin is a wakeup source.

void LLWU_ClearExternalWakeupPinFlag(LLWU_Type *base, uint32_t pinIndex)

Clears the external wakeup source flag.

This function clears the external wakeup source flag for a specific pin.

Parameters:

base – LLWU peripheral base address.
pinIndex – A pin index, which starts from 1.

static inline void LLWU_EnableInternalModuleInterruptWakup(LLWU_Type *base, uint32_t moduleIndex, bool enable)

Enables/disables the internal module source.

This function enables/disables the internal module source mode that is used as a wake up source.

Parameters:

base – LLWU peripheral base address.
moduleIndex – A module index to be enabled as an internal wakeup source starting from 1.
enable – An enable or a disable setting

static inline void LLWU_EnableInternalModuleDmaRequestWakup(LLWU_Type *base, uint32_t moduleIndex, bool enable)

Enables/disables the internal module DMA wakeup source.

This function enables/disables the internal DMA that is used as a wake up source.

Parameters:

base – LLWU peripheral base address.
moduleIndex – An internal module index which is used as a DMA request source, starting from 1.
enable – Enable or disable the DMA request source

void LLWU_SetPinFilterMode(LLWU_Type *base, uint32_t filterIndex, llwu_external_pin_filter_mode_t filterMode)

Sets the pin filter configuration.

This function sets the pin filter configuration.

Parameters:

base – LLWU peripheral base address.
filterIndex – A pin filter index used to enable/disable the digital filter, starting from 1.
filterMode – A filter mode configuration

bool LLWU_GetPinFilterFlag(LLWU_Type *base, uint32_t filterIndex)

Gets the pin filter configuration.

This function gets the pin filter flag.

Parameters:

base – LLWU peripheral base address.
filterIndex – A pin filter index, which starts from 1.

Returns:

True if the flag is a source of the existing low-leakage power mode.

void LLWU_ClearPinFilterFlag(LLWU_Type *base, uint32_t filterIndex)

Clears the pin filter configuration.

This function clears the pin filter flag.

Parameters:

base – LLWU peripheral base address.
filterIndex – A pin filter index to clear the flag, starting from 1.

void LLWU_SetResetPinMode(LLWU_Type *base, bool pinEnable, bool pinFilterEnable)

Sets the reset pin mode.

This function determines how the reset pin is used as a low leakage mode exit source.

Parameters:

base – LLWU peripheral base address.
pinEnable – Enable reset the pin filter
pinFilterEnable – Specify whether the pin filter is enabled in Low-Leakage power mode.

FSL_LLWU_DRIVER_VERSION: LLWU driver version.

enum _llwu_external_pin_mode

External input pin control modes.

Values:

enumerator kLLWU_ExternalPinDisable: Pin disabled as a wakeup input.

enumerator kLLWU_ExternalPinRisingEdge: Pin enabled with the rising edge detection.

enumerator kLLWU_ExternalPinFallingEdge: Pin enabled with the falling edge detection.

enumerator kLLWU_ExternalPinAnyEdge: Pin enabled with any change detection.

enum _llwu_pin_filter_mode

Digital filter control modes.

Values:

enumerator kLLWU_PinFilterDisable: Filter disabled.

enumerator kLLWU_PinFilterRisingEdge: Filter positive edge detection.

enumerator kLLWU_PinFilterFallingEdge: Filter negative edge detection.

enumerator kLLWU_PinFilterAnyEdge: Filter any edge detection.

typedef enum _llwu_external_pin_mode llwu_external_pin_mode_t: External input pin control modes.

typedef enum _llwu_pin_filter_mode llwu_pin_filter_mode_t: Digital filter control modes.

typedef struct _llwu_version_id llwu_version_id_t: IP version ID definition.

typedef struct _llwu_param llwu_param_t: IP parameter definition.

typedef struct _llwu_external_pin_filter_mode llwu_external_pin_filter_mode_t: An external input pin filter control structure.

LLWU_REG_VAL(x)

struct _llwu_version_id

#include <fsl_llwu.h>

IP version ID definition.

Public Members

uint16_t feature: A feature specification number.

uint8_t minor: The minor version number.

uint8_t major: The major version number.

struct _llwu_param

#include <fsl_llwu.h>

IP parameter definition.

Public Members

uint8_t filters: A number of the pin filter.

uint8_t dmas: A number of the wakeup DMA.

uint8_t modules: A number of the wakeup module.

uint8_t pins: A number of the wake up pin.

struct _llwu_external_pin_filter_mode

#include <fsl_llwu.h>

An external input pin filter control structure.

Public Members

uint32_t pinIndex: A pin number

llwu_pin_filter_mode_t filterMode: Filter mode

LPTMR: Low-Power Timer

void LPTMR_Init(LPTMR_Type *base, const lptmr_config_t *config)

Ungates the LPTMR clock and configures the peripheral for a basic operation.

Note

This API should be called at the beginning of the application using the LPTMR driver.

Parameters:

base – LPTMR peripheral base address
config – A pointer to the LPTMR configuration structure.

void LPTMR_Deinit(LPTMR_Type *base)

Gates the LPTMR clock.

Parameters:

base – LPTMR peripheral base address

void LPTMR_GetDefaultConfig(lptmr_config_t *config)

Fills in the LPTMR configuration structure with default settings.

The default values are as follows.

config->timerMode = kLPTMR_TimerModeTimeCounter;
config->pinSelect = kLPTMR_PinSelectInput_0;
config->pinPolarity = kLPTMR_PinPolarityActiveHigh;
config->enableFreeRunning = false;
config->bypassPrescaler = true;
config->prescalerClockSource = kLPTMR_PrescalerClock_1;
config->value = kLPTMR_Prescale_Glitch_0;

Parameters:

config – A pointer to the LPTMR configuration structure.

static inline void LPTMR_EnableInterrupts(LPTMR_Type *base, uint32_t mask)

Enables the selected LPTMR interrupts.

Parameters:

base – LPTMR peripheral base address
mask – The interrupts to enable. This is a logical OR of members of the enumeration lptmr_interrupt_enable_t

static inline void LPTMR_DisableInterrupts(LPTMR_Type *base, uint32_t mask)

Disables the selected LPTMR interrupts.

Parameters:

base – LPTMR peripheral base address
mask – The interrupts to disable. This is a logical OR of members of the enumeration lptmr_interrupt_enable_t.

static inline uint32_t LPTMR_GetEnabledInterrupts(LPTMR_Type *base)

Gets the enabled LPTMR interrupts.

Parameters:

base – LPTMR peripheral base address

Returns:

The enabled interrupts. This is the logical OR of members of the enumeration lptmr_interrupt_enable_t

static inline uint32_t LPTMR_GetStatusFlags(LPTMR_Type *base)

Gets the LPTMR status flags.

Parameters:

base – LPTMR peripheral base address

Returns:

The status flags. This is the logical OR of members of the enumeration lptmr_status_flags_t

static inline void LPTMR_ClearStatusFlags(LPTMR_Type *base, uint32_t mask)

Clears the LPTMR status flags.

Parameters:

base – LPTMR peripheral base address
mask – The status flags to clear. This is a logical OR of members of the enumeration lptmr_status_flags_t.

static inline void LPTMR_SetTimerPeriod(LPTMR_Type *base, uint32_t ticks)

Sets the timer period in units of count.

Timers counts from 0 until it equals the count value set here. The count value is written to the CMR register.

Note

The TCF flag is set with the CNR equals the count provided here and then increments.
Call the utility macros provided in the fsl_common.h to convert to ticks.

Parameters:

base – LPTMR peripheral base address
ticks – A timer period in units of ticks, which should be equal or greater than 1.

static inline uint32_t LPTMR_GetCurrentTimerCount(LPTMR_Type *base)

Reads the current timer counting value.

This function returns the real-time timer counting value in a range from 0 to a timer period.

Note

Call the utility macros provided in the fsl_common.h to convert ticks to usec or msec.

Parameters:

base – LPTMR peripheral base address

Returns:

The current counter value in ticks

static inline void LPTMR_StartTimer(LPTMR_Type *base)

Starts the timer.

After calling this function, the timer counts up to the CMR register value. Each time the timer reaches the CMR value and then increments, it generates a trigger pulse and sets the timeout interrupt flag. An interrupt is also triggered if the timer interrupt is enabled.

Parameters:

base – LPTMR peripheral base address

static inline void LPTMR_StopTimer(LPTMR_Type *base)

Stops the timer.

This function stops the timer and resets the timer’s counter register.

Parameters:

base – LPTMR peripheral base address

FSL_LPTMR_DRIVER_VERSION: Driver Version

enum _lptmr_pin_select

LPTMR pin selection used in pulse counter mode.

Values:

enumerator kLPTMR_PinSelectInput_0: Pulse counter input 0 is selected

enumerator kLPTMR_PinSelectInput_1: Pulse counter input 1 is selected

enumerator kLPTMR_PinSelectInput_2: Pulse counter input 2 is selected

enumerator kLPTMR_PinSelectInput_3: Pulse counter input 3 is selected

enum _lptmr_pin_polarity

LPTMR pin polarity used in pulse counter mode.

Values:

enumerator kLPTMR_PinPolarityActiveHigh: Pulse Counter input source is active-high

enumerator kLPTMR_PinPolarityActiveLow: Pulse Counter input source is active-low

enum _lptmr_timer_mode

LPTMR timer mode selection.

Values:

enumerator kLPTMR_TimerModeTimeCounter: Time Counter mode

enumerator kLPTMR_TimerModePulseCounter: Pulse Counter mode

enum _lptmr_prescaler_glitch_value

LPTMR prescaler/glitch filter values.

Values:

enumerator kLPTMR_Prescale_Glitch_0: Prescaler divide 2, glitch filter does not support this setting

enumerator kLPTMR_Prescale_Glitch_1: Prescaler divide 4, glitch filter 2

enumerator kLPTMR_Prescale_Glitch_2: Prescaler divide 8, glitch filter 4

enumerator kLPTMR_Prescale_Glitch_3: Prescaler divide 16, glitch filter 8

enumerator kLPTMR_Prescale_Glitch_4: Prescaler divide 32, glitch filter 16

enumerator kLPTMR_Prescale_Glitch_5: Prescaler divide 64, glitch filter 32

enumerator kLPTMR_Prescale_Glitch_6: Prescaler divide 128, glitch filter 64

enumerator kLPTMR_Prescale_Glitch_7: Prescaler divide 256, glitch filter 128

enumerator kLPTMR_Prescale_Glitch_8: Prescaler divide 512, glitch filter 256

enumerator kLPTMR_Prescale_Glitch_9: Prescaler divide 1024, glitch filter 512

enumerator kLPTMR_Prescale_Glitch_10: Prescaler divide 2048 glitch filter 1024

enumerator kLPTMR_Prescale_Glitch_11: Prescaler divide 4096, glitch filter 2048

enumerator kLPTMR_Prescale_Glitch_12: Prescaler divide 8192, glitch filter 4096

enumerator kLPTMR_Prescale_Glitch_13: Prescaler divide 16384, glitch filter 8192

enumerator kLPTMR_Prescale_Glitch_14: Prescaler divide 32768, glitch filter 16384

enumerator kLPTMR_Prescale_Glitch_15: Prescaler divide 65536, glitch filter 32768

enum _lptmr_prescaler_clock_select

LPTMR prescaler/glitch filter clock select.

Note

Clock connections are SoC-specific

Values:

enumerator kLPTMR_PrescalerClock_0: Prescaler/glitch filter clock 0 selected.

enumerator kLPTMR_PrescalerClock_1: Prescaler/glitch filter clock 1 selected.

enumerator kLPTMR_PrescalerClock_2: Prescaler/glitch filter clock 2 selected.

enumerator kLPTMR_PrescalerClock_3: Prescaler/glitch filter clock 3 selected.

enum _lptmr_interrupt_enable

List of the LPTMR interrupts.

Values:

enumerator kLPTMR_TimerInterruptEnable: Timer interrupt enable

enum _lptmr_status_flags

List of the LPTMR status flags.

Values:

enumerator kLPTMR_TimerCompareFlag: Timer compare flag

typedef enum _lptmr_pin_select lptmr_pin_select_t: LPTMR pin selection used in pulse counter mode.

typedef enum _lptmr_pin_polarity lptmr_pin_polarity_t: LPTMR pin polarity used in pulse counter mode.

typedef enum _lptmr_timer_mode lptmr_timer_mode_t: LPTMR timer mode selection.

typedef enum _lptmr_prescaler_glitch_value lptmr_prescaler_glitch_value_t: LPTMR prescaler/glitch filter values.

typedef enum _lptmr_prescaler_clock_select lptmr_prescaler_clock_select_t: LPTMR prescaler/glitch filter clock select.

Note

Clock connections are SoC-specific

typedef enum _lptmr_interrupt_enable lptmr_interrupt_enable_t: List of the LPTMR interrupts.

typedef enum _lptmr_status_flags lptmr_status_flags_t: List of the LPTMR status flags.

typedef struct _lptmr_config lptmr_config_t

LPTMR config structure.

This structure holds the configuration settings for the LPTMR peripheral. To initialize this structure to reasonable defaults, call the LPTMR_GetDefaultConfig() function and pass a pointer to your configuration structure instance.

The configuration struct can be made constant so it resides in flash.

static inline void LPTMR_EnableTimerDMA(LPTMR_Type *base, bool enable)

Enable or disable timer DMA request.

Parameters:

base – base LPTMR peripheral base address
enable – Switcher of timer DMA feature. “true” means to enable, “false” means to disable.

struct _lptmr_config

#include <fsl_lptmr.h>

LPTMR config structure.

This structure holds the configuration settings for the LPTMR peripheral. To initialize this structure to reasonable defaults, call the LPTMR_GetDefaultConfig() function and pass a pointer to your configuration structure instance.

The configuration struct can be made constant so it resides in flash.

Public Members

lptmr_timer_mode_t timerMode: Time counter mode or pulse counter mode

lptmr_pin_select_t pinSelect: LPTMR pulse input pin select; used only in pulse counter mode

lptmr_pin_polarity_t pinPolarity: LPTMR pulse input pin polarity; used only in pulse counter mode

bool enableFreeRunning: True: enable free running, counter is reset on overflow False: counter is reset when the compare flag is set

bool bypassPrescaler: True: bypass prescaler; false: use clock from prescaler

lptmr_prescaler_clock_select_t prescalerClockSource: LPTMR clock source

lptmr_prescaler_glitch_value_t value: Prescaler or glitch filter value

LPUART: Low Power Universal Asynchronous Receiver/Transmitter Driver

LPUART DMA Driver

void LPUART_TransferCreateHandleDMA(LPUART_Type *base, lpuart_dma_handle_t *handle, lpuart_dma_transfer_callback_t callback, void *userData, dma_handle_t *txDmaHandle, dma_handle_t *rxDmaHandle)

Initializes the LPUART handle which is used in transactional functions.

Note

This function disables all LPUART interrupts.

Parameters:

base – LPUART peripheral base address.
handle – Pointer to lpuart_dma_handle_t structure.
callback – Callback function.
userData – User data.
txDmaHandle – User-requested DMA handle for TX DMA transfer.
rxDmaHandle – User-requested DMA handle for RX DMA transfer.

status_t LPUART_TransferSendDMA(LPUART_Type *base, lpuart_dma_handle_t *handle, lpuart_transfer_t *xfer)

Sends data using DMA.

This function sends data using DMA. This is a non-blocking function, which returns right away. When all data is sent, the send callback function is called.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.
xfer – LPUART DMA transfer structure. See lpuart_transfer_t.

Return values:

kStatus_Success – if succeed, others failed.
kStatus_LPUART_TxBusy – Previous transfer on going.
kStatus_InvalidArgument – Invalid argument.

status_t LPUART_TransferReceiveDMA(LPUART_Type *base, lpuart_dma_handle_t *handle, lpuart_transfer_t *xfer)

Receives data using DMA.

This function receives data using DMA. This is a non-blocking function, which returns right away. When all data is received, the receive callback function is called.

Parameters:

base – LPUART peripheral base address.
handle – Pointer to lpuart_dma_handle_t structure.
xfer – LPUART DMA transfer structure. See lpuart_transfer_t.

Return values:

kStatus_Success – if succeed, others failed.
kStatus_LPUART_RxBusy – Previous transfer on going.
kStatus_InvalidArgument – Invalid argument.

void LPUART_TransferAbortSendDMA(LPUART_Type *base, lpuart_dma_handle_t *handle)

Aborts the sent data using DMA.

This function aborts send data using DMA.

Parameters:

base – LPUART peripheral base address
handle – Pointer to lpuart_dma_handle_t structure

void LPUART_TransferAbortReceiveDMA(LPUART_Type *base, lpuart_dma_handle_t *handle)

Aborts the received data using DMA.

This function aborts the received data using DMA.

Parameters:

base – LPUART peripheral base address
handle – Pointer to lpuart_dma_handle_t structure

status_t LPUART_TransferGetSendCountDMA(LPUART_Type *base, lpuart_dma_handle_t *handle, uint32_t *count)

Gets the number of bytes written to the LPUART TX register.

This function gets the number of bytes that have been written to LPUART TX register by DMA.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.
count – Send bytes count.

Return values:

kStatus_NoTransferInProgress – No send in progress.
kStatus_InvalidArgument – Parameter is invalid.
kStatus_Success – Get successfully through the parameter count;

status_t LPUART_TransferGetReceiveCountDMA(LPUART_Type *base, lpuart_dma_handle_t *handle, uint32_t *count)

Gets the number of received bytes.

This function gets the number of received bytes.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.
count – Receive bytes count.

Return values:

kStatus_NoTransferInProgress – No receive in progress.
kStatus_InvalidArgument – Parameter is invalid.
kStatus_Success – Get successfully through the parameter count;

void LPUART_TransferDMAHandleIRQ(LPUART_Type *base, void *lpuartDmaHandle)

LPUART DMA IRQ handle function.

This function handles the LPUART tx complete IRQ request and invoke user callback.

Note

This function is used as default IRQ handler by double weak mechanism. If user’s specific IRQ handler is implemented, make sure this function is invoked in the handler.

Parameters:

base – LPUART peripheral base address.
lpuartDmaHandle – LPUART handle pointer.

FSL_LPUART_DMA_DRIVER_VERSION: LPUART DMA driver version.

typedef struct _lpuart_dma_handle lpuart_dma_handle_t

typedef void (*lpuart_dma_transfer_callback_t)(LPUART_Type *base, lpuart_dma_handle_t *handle, status_t status, void *userData): LPUART transfer callback function.

struct _lpuart_dma_handle

#include <fsl_lpuart_dma.h>

LPUART DMA handle.

Public Members

lpuart_dma_transfer_callback_t callback: Callback function.

void *userData: LPUART callback function parameter.

size_t rxDataSizeAll: Size of the data to receive.

size_t txDataSizeAll: Size of the data to send out.

dma_handle_t *txDmaHandle: The DMA TX channel used.

dma_handle_t *rxDmaHandle: The DMA RX channel used.

volatile uint8_t txState: TX transfer state.

volatile uint8_t rxState: RX transfer state

LPUART Driver

static inline void LPUART_SoftwareReset(LPUART_Type *base)

Resets the LPUART using software.

This function resets all internal logic and registers except the Global Register. Remains set until cleared by software.

Parameters:

base – LPUART peripheral base address.

status_t LPUART_Init(LPUART_Type *base, const lpuart_config_t *config, uint32_t srcClock_Hz)

Initializes an LPUART instance with the user configuration structure and the peripheral clock.

This function configures the LPUART module with user-defined settings. Call the LPUART_GetDefaultConfig() function to configure the configuration structure and get the default configuration. The example below shows how to use this API to configure the LPUART.

lpuart_config_t lpuartConfig;
lpuartConfig.baudRate_Bps = 115200U;
lpuartConfig.parityMode = kLPUART_ParityDisabled;
lpuartConfig.dataBitsCount = kLPUART_EightDataBits;
lpuartConfig.isMsb = false;
lpuartConfig.stopBitCount = kLPUART_OneStopBit;
lpuartConfig.txFifoWatermark = 0;
lpuartConfig.rxFifoWatermark = 1;
LPUART_Init(LPUART1, &lpuartConfig, 20000000U);

Parameters:

base – LPUART peripheral base address.
config – Pointer to a user-defined configuration structure.
srcClock_Hz – LPUART clock source frequency in HZ.

Return values:

kStatus_LPUART_BaudrateNotSupport – Baudrate is not support in current clock source.
kStatus_Success – LPUART initialize succeed

void LPUART_Deinit(LPUART_Type *base)

Deinitializes a LPUART instance.

This function waits for transmit to complete, disables TX and RX, and disables the LPUART clock.

Parameters:

base – LPUART peripheral base address.

void LPUART_GetDefaultConfig(lpuart_config_t *config)

Gets the default configuration structure.

This function initializes the LPUART configuration structure to a default value. The default values are: lpuartConfig->baudRate_Bps = 115200U; lpuartConfig->parityMode = kLPUART_ParityDisabled; lpuartConfig->dataBitsCount = kLPUART_EightDataBits; lpuartConfig->isMsb = false; lpuartConfig->stopBitCount = kLPUART_OneStopBit; lpuartConfig->txFifoWatermark = 0; lpuartConfig->rxFifoWatermark = 1; lpuartConfig->rxIdleType = kLPUART_IdleTypeStartBit; lpuartConfig->rxIdleConfig = kLPUART_IdleCharacter1; lpuartConfig->enableTx = false; lpuartConfig->enableRx = false;

Parameters:

config – Pointer to a configuration structure.

status_t LPUART_SetBaudRate(LPUART_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz)

Sets the LPUART instance baudrate.

This function configures the LPUART module baudrate. This function is used to update the LPUART module baudrate after the LPUART module is initialized by the LPUART_Init.

LPUART_SetBaudRate(LPUART1, 115200U, 20000000U);

Parameters:

base – LPUART peripheral base address.
baudRate_Bps – LPUART baudrate to be set.
srcClock_Hz – LPUART clock source frequency in HZ.

Return values:

kStatus_LPUART_BaudrateNotSupport – Baudrate is not supported in the current clock source.
kStatus_Success – Set baudrate succeeded.

void LPUART_Enable9bitMode(LPUART_Type *base, bool enable)

Enable 9-bit data mode for LPUART.

This function set the 9-bit mode for LPUART module. The 9th bit is not used for parity thus can be modified by user.

Parameters:

base – LPUART peripheral base address.
enable – true to enable, flase to disable.

static inline void LPUART_SetMatchAddress(LPUART_Type *base, uint16_t address1, uint16_t address2)

Set the LPUART address.

This function configures the address for LPUART module that works as slave in 9-bit data mode. One or two address fields can be configured. When the address field’s match enable bit is set, the frame it receices with MSB being 1 is considered as an address frame, otherwise it is considered as data frame. Once the address frame matches one of slave’s own addresses, this slave is addressed. This address frame and its following data frames are stored in the receive buffer, otherwise the frames will be discarded. To un-address a slave, just send an address frame with unmatched address.

Note

Any LPUART instance joined in the multi-slave system can work as slave. The position of the address mark is the same as the parity bit when parity is enabled for 8 bit and 9 bit data formats.

Parameters:

base – LPUART peripheral base address.
address1 – LPUART slave address1.
address2 – LPUART slave address2.

static inline void LPUART_EnableMatchAddress(LPUART_Type *base, bool match1, bool match2)

Enable the LPUART match address feature.

Parameters:

base – LPUART peripheral base address.
match1 – true to enable match address1, false to disable.
match2 – true to enable match address2, false to disable.

static inline void LPUART_SetRxFifoWatermark(LPUART_Type *base, uint8_t water)

Sets the rx FIFO watermark.

Parameters:

base – LPUART peripheral base address.
water – Rx FIFO watermark.

static inline void LPUART_SetTxFifoWatermark(LPUART_Type *base, uint8_t water)

Sets the tx FIFO watermark.

Parameters:

base – LPUART peripheral base address.
water – Tx FIFO watermark.

static inline void LPUART_TransferEnable16Bit(lpuart_handle_t *handle, bool enable)

Sets the LPUART using 16bit transmit, only for 9bit or 10bit mode.

This function Enable 16bit Data transmit in lpuart_handle_t.

Parameters:

handle – LPUART handle pointer.
enable – true to enable, false to disable.

uint32_t LPUART_GetStatusFlags(LPUART_Type *base)

Gets LPUART status flags.

This function gets all LPUART status flags. The flags are returned as the logical OR value of the enumerators _lpuart_flags. To check for a specific status, compare the return value with enumerators in the _lpuart_flags. For example, to check whether the TX is empty:

if (kLPUART_TxDataRegEmptyFlag & LPUART_GetStatusFlags(LPUART1))
{
    ...
}

Parameters:

base – LPUART peripheral base address.

Returns:

LPUART status flags which are ORed by the enumerators in the _lpuart_flags.

status_t LPUART_ClearStatusFlags(LPUART_Type *base, uint32_t mask)

Clears status flags with a provided mask.

This function clears LPUART status flags with a provided mask. Automatically cleared flags can’t be cleared by this function. Flags that can only cleared or set by hardware are: kLPUART_TxDataRegEmptyFlag, kLPUART_TransmissionCompleteFlag, kLPUART_RxDataRegFullFlag, kLPUART_RxActiveFlag, kLPUART_NoiseErrorFlag, kLPUART_ParityErrorFlag, kLPUART_TxFifoEmptyFlag,kLPUART_RxFifoEmptyFlag Note: This API should be called when the Tx/Rx is idle, otherwise it takes no effects.

Parameters:

base – LPUART peripheral base address.
mask – the status flags to be cleared. The user can use the enumerators in the _lpuart_status_flag_t to do the OR operation and get the mask.

Return values:

kStatus_LPUART_FlagCannotClearManually – The flag can’t be cleared by this function but it is cleared automatically by hardware.
kStatus_Success – Status in the mask are cleared.

Returns:

0 succeed, others failed.

void LPUART_EnableInterrupts(LPUART_Type *base, uint32_t mask)

Enables LPUART interrupts according to a provided mask.

This function enables the LPUART interrupts according to a provided mask. The mask is a logical OR of enumeration members. See the _lpuart_interrupt_enable. This examples shows how to enable TX empty interrupt and RX full interrupt:

LPUART_EnableInterrupts(LPUART1,kLPUART_TxDataRegEmptyInterruptEnable | kLPUART_RxDataRegFullInterruptEnable);

Parameters:

base – LPUART peripheral base address.
mask – The interrupts to enable. Logical OR of _lpuart_interrupt_enable.

void LPUART_DisableInterrupts(LPUART_Type *base, uint32_t mask)

Disables LPUART interrupts according to a provided mask.

This function disables the LPUART interrupts according to a provided mask. The mask is a logical OR of enumeration members. See _lpuart_interrupt_enable. This example shows how to disable the TX empty interrupt and RX full interrupt:

LPUART_DisableInterrupts(LPUART1,kLPUART_TxDataRegEmptyInterruptEnable | kLPUART_RxDataRegFullInterruptEnable);

Parameters:

base – LPUART peripheral base address.
mask – The interrupts to disable. Logical OR of _lpuart_interrupt_enable.

uint32_t LPUART_GetEnabledInterrupts(LPUART_Type *base)

Gets enabled LPUART interrupts.

This function gets the enabled LPUART interrupts. The enabled interrupts are returned as the logical OR value of the enumerators _lpuart_interrupt_enable. To check a specific interrupt enable status, compare the return value with enumerators in _lpuart_interrupt_enable. For example, to check whether the TX empty interrupt is enabled:

uint32_t enabledInterrupts = LPUART_GetEnabledInterrupts(LPUART1);

if (kLPUART_TxDataRegEmptyInterruptEnable & enabledInterrupts)
{
    ...
}

Parameters:

base – LPUART peripheral base address.

Returns:

LPUART interrupt flags which are logical OR of the enumerators in _lpuart_interrupt_enable.

static inline uintptr_t LPUART_GetDataRegisterAddress(LPUART_Type *base)

Gets the LPUART data register address.

This function returns the LPUART data register address, which is mainly used by the DMA/eDMA.

Parameters:

base – LPUART peripheral base address.

Returns:

LPUART data register addresses which are used both by the transmitter and receiver.

static inline void LPUART_EnableTxDMA(LPUART_Type *base, bool enable)

Enables or disables the LPUART transmitter DMA request.

This function enables or disables the transmit data register empty flag, STAT[TDRE], to generate DMA requests.

Parameters:

base – LPUART peripheral base address.
enable – True to enable, false to disable.

static inline void LPUART_EnableRxDMA(LPUART_Type *base, bool enable)

Enables or disables the LPUART receiver DMA.

This function enables or disables the receiver data register full flag, STAT[RDRF], to generate DMA requests.

Parameters:

base – LPUART peripheral base address.
enable – True to enable, false to disable.

uint32_t LPUART_GetInstance(LPUART_Type *base)

Get the LPUART instance from peripheral base address.

Parameters:

base – LPUART peripheral base address.

Returns:

LPUART instance.

static inline void LPUART_EnableTx(LPUART_Type *base, bool enable)

Enables or disables the LPUART transmitter.

This function enables or disables the LPUART transmitter.

Parameters:

base – LPUART peripheral base address.
enable – True to enable, false to disable.

static inline void LPUART_EnableRx(LPUART_Type *base, bool enable)

Enables or disables the LPUART receiver.

This function enables or disables the LPUART receiver.

Parameters:

base – LPUART peripheral base address.
enable – True to enable, false to disable.

static inline void LPUART_WriteByte(LPUART_Type *base, uint8_t data)

Writes to the transmitter register.

This function writes data to the transmitter register directly. The upper layer must ensure that the TX register is empty or that the TX FIFO has room before calling this function.

Parameters:

base – LPUART peripheral base address.
data – Data write to the TX register.

static inline uint8_t LPUART_ReadByte(LPUART_Type *base)

Reads the receiver register.

This function reads data from the receiver register directly. The upper layer must ensure that the receiver register is full or that the RX FIFO has data before calling this function.

Parameters:

base – LPUART peripheral base address.

Returns:

Data read from data register.

static inline uint8_t LPUART_GetRxFifoCount(LPUART_Type *base)

Gets the rx FIFO data count.

Parameters:

base – LPUART peripheral base address.

Returns:

rx FIFO data count.

static inline uint8_t LPUART_GetTxFifoCount(LPUART_Type *base)

Gets the tx FIFO data count.

Parameters:

base – LPUART peripheral base address.

Returns:

tx FIFO data count.

void LPUART_SendAddress(LPUART_Type *base, uint8_t address)

Transmit an address frame in 9-bit data mode.

Parameters:

base – LPUART peripheral base address.
address – LPUART slave address.

status_t LPUART_WriteBlocking(LPUART_Type *base, const uint8_t *data, size_t length)

Writes to the transmitter register using a blocking method.

This function polls the transmitter register, first waits for the register to be empty or TX FIFO to have room, and writes data to the transmitter buffer, then waits for the dat to be sent out to the bus.

Parameters:

base – LPUART peripheral base address.
data – Start address of the data to write.
length – Size of the data to write.

Return values:

kStatus_LPUART_Timeout – Transmission timed out and was aborted.
kStatus_Success – Successfully wrote all data.

status_t LPUART_WriteBlocking16bit(LPUART_Type *base, const uint16_t *data, size_t length)

Writes to the transmitter register using a blocking method in 9bit or 10bit mode.

Note

This function only support 9bit or 10bit transfer. Please make sure only 10bit of data is valid and other bits are 0.

Parameters:

base – LPUART peripheral base address.
data – Start address of the data to write.
length – Size of the data to write.

Return values:

kStatus_LPUART_Timeout – Transmission timed out and was aborted.
kStatus_Success – Successfully wrote all data.

status_t LPUART_ReadBlocking(LPUART_Type *base, uint8_t *data, size_t length)

Reads the receiver data register using a blocking method.

This function polls the receiver register, waits for the receiver register full or receiver FIFO has data, and reads data from the TX register.

Parameters:

base – LPUART peripheral base address.
data – Start address of the buffer to store the received data.
length – Size of the buffer.

Return values:

kStatus_LPUART_RxHardwareOverrun – Receiver overrun happened while receiving data.
kStatus_LPUART_NoiseError – Noise error happened while receiving data.
kStatus_LPUART_FramingError – Framing error happened while receiving data.
kStatus_LPUART_ParityError – Parity error happened while receiving data.
kStatus_LPUART_Timeout – Transmission timed out and was aborted.
kStatus_Success – Successfully received all data.

status_t LPUART_ReadBlocking16bit(LPUART_Type *base, uint16_t *data, size_t length)

Reads the receiver data register in 9bit or 10bit mode.

Note

This function only support 9bit or 10bit transfer.

Parameters:

base – LPUART peripheral base address.
data – Start address of the buffer to store the received data by 16bit, only 10bit is valid.
length – Size of the buffer.

Return values:

kStatus_LPUART_RxHardwareOverrun – Receiver overrun happened while receiving data.
kStatus_LPUART_NoiseError – Noise error happened while receiving data.
kStatus_LPUART_FramingError – Framing error happened while receiving data.
kStatus_LPUART_ParityError – Parity error happened while receiving data.
kStatus_LPUART_Timeout – Transmission timed out and was aborted.
kStatus_Success – Successfully received all data.

void LPUART_TransferCreateHandle(LPUART_Type *base, lpuart_handle_t *handle, lpuart_transfer_callback_t callback, void *userData)

Initializes the LPUART handle.

This function initializes the LPUART handle, which can be used for other LPUART transactional APIs. Usually, for a specified LPUART instance, call this API once to get the initialized handle.

The LPUART driver supports the “background” receiving, which means that user can set up an RX ring buffer optionally. Data received is stored into the ring buffer even when the user doesn’t call the LPUART_TransferReceiveNonBlocking() API. If there is already data received in the ring buffer, the user can get the received data from the ring buffer directly. The ring buffer is disabled if passing NULL as ringBuffer.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.
callback – Callback function.
userData – User data.

status_t LPUART_TransferSendNonBlocking(LPUART_Type *base, lpuart_handle_t *handle, lpuart_transfer_t *xfer)

Transmits a buffer of data using the interrupt method.

This function send data using an interrupt method. This is a non-blocking function, which returns directly without waiting for all data written to the transmitter register. When all data is written to the TX register in the ISR, the LPUART driver calls the callback function and passes the kStatus_LPUART_TxIdle as status parameter.

Note

The kStatus_LPUART_TxIdle is passed to the upper layer when all data are written to the TX register. However, there is no check to ensure that all the data sent out. Before disabling the TX, check the kLPUART_TransmissionCompleteFlag to ensure that the transmit is finished.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.
xfer – LPUART transfer structure, see lpuart_transfer_t.

Return values:

kStatus_Success – Successfully start the data transmission.
kStatus_LPUART_TxBusy – Previous transmission still not finished, data not all written to the TX register.
kStatus_InvalidArgument – Invalid argument.

void LPUART_TransferStartRingBuffer(LPUART_Type *base, lpuart_handle_t *handle, uint8_t *ringBuffer, size_t ringBufferSize)

Sets up the RX ring buffer.

This function sets up the RX ring buffer to a specific UART handle.

When the RX ring buffer is used, data received is stored into the ring buffer even when the user doesn’t call the UART_TransferReceiveNonBlocking() API. If there is already data received in the ring buffer, the user can get the received data from the ring buffer directly.

Note

When using RX ring buffer, one byte is reserved for internal use. In other words, if ringBufferSize is 32, then only 31 bytes are used for saving data.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.
ringBuffer – Start address of ring buffer for background receiving. Pass NULL to disable the ring buffer.
ringBufferSize – size of the ring buffer.

void LPUART_TransferStopRingBuffer(LPUART_Type *base, lpuart_handle_t *handle)

Aborts the background transfer and uninstalls the ring buffer.

This function aborts the background transfer and uninstalls the ring buffer.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.

size_t LPUART_TransferGetRxRingBufferLength(LPUART_Type *base, lpuart_handle_t *handle)

Get the length of received data in RX ring buffer.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.

Returns:

Length of received data in RX ring buffer.

void LPUART_TransferAbortSend(LPUART_Type *base, lpuart_handle_t *handle)

Aborts the interrupt-driven data transmit.

This function aborts the interrupt driven data sending. The user can get the remainBtyes to find out how many bytes are not sent out.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.

status_t LPUART_TransferGetSendCount(LPUART_Type *base, lpuart_handle_t *handle, uint32_t *count)

Gets the number of bytes that have been sent out to bus.

This function gets the number of bytes that have been sent out to bus by an interrupt method.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.
count – Send bytes count.

Return values:

kStatus_NoTransferInProgress – No send in progress.
kStatus_InvalidArgument – Parameter is invalid.
kStatus_Success – Get successfully through the parameter count;

status_t LPUART_TransferReceiveNonBlocking(LPUART_Type *base, lpuart_handle_t *handle, lpuart_transfer_t *xfer, size_t *receivedBytes)

Receives a buffer of data using the interrupt method.

This function receives data using an interrupt method. This is a non-blocking function which returns without waiting to ensure that all data are received. If the RX ring buffer is used and not empty, the data in the ring buffer is copied and the parameter receivedBytes shows how many bytes are copied from the ring buffer. After copying, if the data in the ring buffer is not enough for read, the receive request is saved by the LPUART driver. When the new data arrives, the receive request is serviced first. When all data is received, the LPUART driver notifies the upper layer through a callback function and passes a status parameter kStatus_UART_RxIdle. For example, the upper layer needs 10 bytes but there are only 5 bytes in ring buffer. The 5 bytes are copied to xfer->data, which returns with the parameter receivedBytes set to 5. For the remaining 5 bytes, the newly arrived data is saved from xfer->data[5]. When 5 bytes are received, the LPUART driver notifies the upper layer. If the RX ring buffer is not enabled, this function enables the RX and RX interrupt to receive data to xfer->data. When all data is received, the upper layer is notified.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.
xfer – LPUART transfer structure, see uart_transfer_t.
receivedBytes – Bytes received from the ring buffer directly.

Return values:

kStatus_Success – Successfully queue the transfer into the transmit queue.
kStatus_LPUART_RxBusy – Previous receive request is not finished.
kStatus_InvalidArgument – Invalid argument.

void LPUART_TransferAbortReceive(LPUART_Type *base, lpuart_handle_t *handle)

Aborts the interrupt-driven data receiving.

This function aborts the interrupt-driven data receiving. The user can get the remainBytes to find out how many bytes not received yet.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.

status_t LPUART_TransferGetReceiveCount(LPUART_Type *base, lpuart_handle_t *handle, uint32_t *count)

Gets the number of bytes that have been received.

This function gets the number of bytes that have been received.

Parameters:

base – LPUART peripheral base address.
handle – LPUART handle pointer.
count – Receive bytes count.

Return values:

kStatus_NoTransferInProgress – No receive in progress.
kStatus_InvalidArgument – Parameter is invalid.
kStatus_Success – Get successfully through the parameter count;

void LPUART_TransferHandleIRQ(LPUART_Type *base, void *irqHandle)

LPUART IRQ handle function.

This function handles the LPUART transmit and receive IRQ request.

Parameters:

base – LPUART peripheral base address.
irqHandle – LPUART handle pointer.

void LPUART_TransferHandleErrorIRQ(LPUART_Type *base, void *irqHandle)

LPUART Error IRQ handle function.

This function handles the LPUART error IRQ request.

Parameters:

base – LPUART peripheral base address.
irqHandle – LPUART handle pointer.

FSL_LPUART_DRIVER_VERSION: LPUART driver version.

Error codes for the LPUART driver.

Values:

enumerator kStatus_LPUART_TxBusy: TX busy

enumerator kStatus_LPUART_RxBusy: RX busy

enumerator kStatus_LPUART_TxIdle: LPUART transmitter is idle.

enumerator kStatus_LPUART_RxIdle: LPUART receiver is idle.

enumerator kStatus_LPUART_TxWatermarkTooLarge: TX FIFO watermark too large

enumerator kStatus_LPUART_RxWatermarkTooLarge: RX FIFO watermark too large

enumerator kStatus_LPUART_FlagCannotClearManually: Some flag can’t manually clear

enumerator kStatus_LPUART_Error: Error happens on LPUART.

enumerator kStatus_LPUART_RxRingBufferOverrun: LPUART RX software ring buffer overrun.

enumerator kStatus_LPUART_RxHardwareOverrun: LPUART RX receiver overrun.

enumerator kStatus_LPUART_NoiseError: LPUART noise error.

enumerator kStatus_LPUART_FramingError: LPUART framing error.

enumerator kStatus_LPUART_ParityError: LPUART parity error.

enumerator kStatus_LPUART_BaudrateNotSupport: Baudrate is not support in current clock source

enumerator kStatus_LPUART_IdleLineDetected: IDLE flag.

enumerator kStatus_LPUART_Timeout: LPUART times out.

enum _lpuart_parity_mode

LPUART parity mode.

Values:

enumerator kLPUART_ParityDisabled: Parity disabled

enumerator kLPUART_ParityEven: Parity enabled, type even, bit setting: PE|PT = 10

enumerator kLPUART_ParityOdd: Parity enabled, type odd, bit setting: PE|PT = 11

enum _lpuart_data_bits

LPUART data bits count.

Values:

enumerator kLPUART_EightDataBits: Eight data bit

enumerator kLPUART_SevenDataBits: Seven data bit

enum _lpuart_stop_bit_count

LPUART stop bit count.

Values:

enumerator kLPUART_OneStopBit: One stop bit

enumerator kLPUART_TwoStopBit: Two stop bits

enum _lpuart_transmit_cts_source

LPUART transmit CTS source.

Values:

enumerator kLPUART_CtsSourcePin: CTS resource is the LPUART_CTS pin.

enumerator kLPUART_CtsSourceMatchResult: CTS resource is the match result.

enum _lpuart_transmit_cts_config

LPUART transmit CTS configure.

Values:

enumerator kLPUART_CtsSampleAtStart: CTS input is sampled at the start of each character.

enumerator kLPUART_CtsSampleAtIdle: CTS input is sampled when the transmitter is idle

enum _lpuart_idle_type_select

LPUART idle flag type defines when the receiver starts counting.

Values:

enumerator kLPUART_IdleTypeStartBit: Start counting after a valid start bit.

enumerator kLPUART_IdleTypeStopBit: Start counting after a stop bit.

enum _lpuart_idle_config

LPUART idle detected configuration. This structure defines the number of idle characters that must be received before the IDLE flag is set.

Values:

enumerator kLPUART_IdleCharacter1: the number of idle characters.

enumerator kLPUART_IdleCharacter2: the number of idle characters.

enumerator kLPUART_IdleCharacter4: the number of idle characters.

enumerator kLPUART_IdleCharacter8: the number of idle characters.

enumerator kLPUART_IdleCharacter16: the number of idle characters.

enumerator kLPUART_IdleCharacter32: the number of idle characters.

enumerator kLPUART_IdleCharacter64: the number of idle characters.

enumerator kLPUART_IdleCharacter128: the number of idle characters.

enum _lpuart_interrupt_enable

LPUART interrupt configuration structure, default settings all disabled.

This structure contains the settings for all LPUART interrupt configurations.

Values:

enumerator kLPUART_LinBreakInterruptEnable: LIN break detect. bit 7

enumerator kLPUART_RxActiveEdgeInterruptEnable: Receive Active Edge. bit 6

enumerator kLPUART_TxDataRegEmptyInterruptEnable: Transmit data register empty. bit 23

enumerator kLPUART_TransmissionCompleteInterruptEnable: Transmission complete. bit 22

enumerator kLPUART_RxDataRegFullInterruptEnable: Receiver data register full. bit 21

enumerator kLPUART_IdleLineInterruptEnable: Idle line. bit 20

enumerator kLPUART_RxOverrunInterruptEnable: Receiver Overrun. bit 27

enumerator kLPUART_NoiseErrorInterruptEnable: Noise error flag. bit 26

enumerator kLPUART_FramingErrorInterruptEnable: Framing error flag. bit 25

enumerator kLPUART_ParityErrorInterruptEnable: Parity error flag. bit 24

enumerator kLPUART_Match1InterruptEnable: Parity error flag. bit 15

enumerator kLPUART_Match2InterruptEnable: Parity error flag. bit 14

enumerator kLPUART_TxFifoOverflowInterruptEnable: Transmit FIFO Overflow. bit 9

enumerator kLPUART_RxFifoUnderflowInterruptEnable: Receive FIFO Underflow. bit 8

enumerator kLPUART_AllInterruptEnable

enum _lpuart_flags

LPUART status flags.

This provides constants for the LPUART status flags for use in the LPUART functions.

Values:

enumerator kLPUART_TxDataRegEmptyFlag: Transmit data register empty flag, sets when transmit buffer is empty. bit 23

enumerator kLPUART_TransmissionCompleteFlag: Transmission complete flag, sets when transmission activity complete. bit 22

enumerator kLPUART_RxDataRegFullFlag: Receive data register full flag, sets when the receive data buffer is full. bit 21

enumerator kLPUART_IdleLineFlag: Idle line detect flag, sets when idle line detected. bit 20

enumerator kLPUART_RxOverrunFlag: Receive Overrun, sets when new data is received before data is read from receive register. bit 19

enumerator kLPUART_NoiseErrorFlag: Receive takes 3 samples of each received bit. If any of these samples differ, noise flag sets. bit 18

enumerator kLPUART_FramingErrorFlag: Frame error flag, sets if logic 0 was detected where stop bit expected. bit 17

enumerator kLPUART_ParityErrorFlag: If parity enabled, sets upon parity error detection. bit 16

enumerator kLPUART_LinBreakFlag: LIN break detect interrupt flag, sets when LIN break char detected and LIN circuit enabled. bit 31

enumerator kLPUART_RxActiveEdgeFlag: Receive pin active edge interrupt flag, sets when active edge detected. bit 30

enumerator kLPUART_RxActiveFlag: Receiver Active Flag (RAF), sets at beginning of valid start. bit 24

enumerator kLPUART_DataMatch1Flag: The next character to be read from LPUART_DATA matches MA1. bit 15

enumerator kLPUART_DataMatch2Flag: The next character to be read from LPUART_DATA matches MA2. bit 14

enumerator kLPUART_TxFifoEmptyFlag: TXEMPT bit, sets if transmit buffer is empty. bit 7

enumerator kLPUART_RxFifoEmptyFlag: RXEMPT bit, sets if receive buffer is empty. bit 6

enumerator kLPUART_TxFifoOverflowFlag: TXOF bit, sets if transmit buffer overflow occurred. bit 1

enumerator kLPUART_RxFifoUnderflowFlag: RXUF bit, sets if receive buffer underflow occurred. bit 0

enumerator kLPUART_AllClearFlags

enumerator kLPUART_AllFlags

typedef enum _lpuart_parity_mode lpuart_parity_mode_t: LPUART parity mode.

typedef enum _lpuart_data_bits lpuart_data_bits_t: LPUART data bits count.

typedef enum _lpuart_stop_bit_count lpuart_stop_bit_count_t: LPUART stop bit count.

typedef enum _lpuart_transmit_cts_source lpuart_transmit_cts_source_t: LPUART transmit CTS source.

typedef enum _lpuart_transmit_cts_config lpuart_transmit_cts_config_t: LPUART transmit CTS configure.

typedef enum _lpuart_idle_type_select lpuart_idle_type_select_t: LPUART idle flag type defines when the receiver starts counting.

typedef enum _lpuart_idle_config lpuart_idle_config_t: LPUART idle detected configuration. This structure defines the number of idle characters that must be received before the IDLE flag is set.

typedef struct _lpuart_config lpuart_config_t: LPUART configuration structure.

typedef struct _lpuart_transfer lpuart_transfer_t: LPUART transfer structure.

typedef struct _lpuart_handle lpuart_handle_t

typedef void (*lpuart_transfer_callback_t)(LPUART_Type *base, lpuart_handle_t *handle, status_t status, void *userData): LPUART transfer callback function.

typedef void (*lpuart_isr_t)(LPUART_Type *base, void *handle)

void *s_lpuartHandle[]

const IRQn_Type s_lpuartTxIRQ[]

lpuart_isr_t s_lpuartIsr[]

UART_RETRY_TIMES: Retry times for waiting flag.

struct _lpuart_config

#include <fsl_lpuart.h>

LPUART configuration structure.

Public Members

uint32_t baudRate_Bps: LPUART baud rate

lpuart_parity_mode_t parityMode: Parity mode, disabled (default), even, odd

lpuart_data_bits_t dataBitsCount: Data bits count, eight (default), seven

bool isMsb: Data bits order, LSB (default), MSB

lpuart_stop_bit_count_t stopBitCount: Number of stop bits, 1 stop bit (default) or 2 stop bits

uint8_t txFifoWatermark: TX FIFO watermark

uint8_t rxFifoWatermark: RX FIFO watermark

bool enableRxRTS: RX RTS enable

bool enableTxCTS: TX CTS enable

lpuart_transmit_cts_source_t txCtsSource: TX CTS source

lpuart_transmit_cts_config_t txCtsConfig: TX CTS configure

lpuart_idle_type_select_t rxIdleType: RX IDLE type.

lpuart_idle_config_t rxIdleConfig: RX IDLE configuration.

bool enableTx: Enable TX

bool enableRx: Enable RX

struct _lpuart_transfer

#include <fsl_lpuart.h>

LPUART transfer structure.

Public Members

size_t dataSize: The byte count to be transfer.

struct _lpuart_handle

#include <fsl_lpuart.h>

LPUART handle structure.

Public Members

volatile size_t txDataSize: Size of the remaining data to send.

size_t txDataSizeAll: Size of the data to send out.

volatile size_t rxDataSize: Size of the remaining data to receive.

size_t rxDataSizeAll: Size of the data to receive.

size_t rxRingBufferSize: Size of the ring buffer.

volatile uint16_t rxRingBufferHead: Index for the driver to store received data into ring buffer.

volatile uint16_t rxRingBufferTail: Index for the user to get data from the ring buffer.

lpuart_transfer_callback_t callback: Callback function.

void *userData: LPUART callback function parameter.

volatile uint8_t txState: TX transfer state.

volatile uint8_t rxState: RX transfer state.

bool isSevenDataBits: Seven data bits flag.

bool is16bitData: 16bit data bits flag, only used for 9bit or 10bit data

union __unnamed15__

Public Members

uint8_t *data: The buffer of data to be transfer.

uint8_t *rxData: The buffer to receive data.

uint16_t *rxData16: The buffer to receive data.

const uint8_t *txData: The buffer of data to be sent.

const uint16_t *txData16: The buffer of data to be sent.

union __unnamed17__

Public Members

const uint8_t *volatile txData: Address of remaining data to send.

const uint16_t *volatile txData16: Address of remaining data to send.

union __unnamed19__

Public Members

uint8_t *volatile rxData: Address of remaining data to receive.

uint16_t *volatile rxData16: Address of remaining data to receive.

union __unnamed21__

Public Members

uint8_t *rxRingBuffer: Start address of the receiver ring buffer.

uint16_t *rxRingBuffer16: Start address of the receiver ring buffer.

MCM: Miscellaneous Control Module

FSL_MCM_DRIVER_VERSION: MCM driver version.

Enum _mcm_interrupt_flag. Interrupt status flag mask. .

Values:

enumerator kMCM_CacheWriteBuffer: Cache Write Buffer Error Enable.

enumerator kMCM_ParityError: Cache Parity Error Enable.

enumerator kMCM_FPUInvalidOperation: FPU Invalid Operation Interrupt Enable.

enumerator kMCM_FPUDivideByZero: FPU Divide-by-zero Interrupt Enable.

enumerator kMCM_FPUOverflow: FPU Overflow Interrupt Enable.

enumerator kMCM_FPUUnderflow: FPU Underflow Interrupt Enable.

enumerator kMCM_FPUInexact: FPU Inexact Interrupt Enable.

enumerator kMCM_FPUInputDenormalInterrupt: FPU Input Denormal Interrupt Enable.

typedef union _mcm_buffer_fault_attribute mcm_buffer_fault_attribute_t: The union of buffer fault attribute.

typedef union _mcm_lmem_fault_attribute mcm_lmem_fault_attribute_t: The union of LMEM fault attribute.

static inline void MCM_EnableCrossbarRoundRobin(MCM_Type *base, bool enable)

Enables/Disables crossbar round robin.

Parameters:

base – MCM peripheral base address.
enable – Used to enable/disable crossbar round robin.
- true Enable crossbar round robin.
- false disable crossbar round robin.

static inline void MCM_EnableInterruptStatus(MCM_Type *base, uint32_t mask)

Enables the interrupt.

Parameters:

base – MCM peripheral base address.
mask – Interrupt status flags mask(_mcm_interrupt_flag).

static inline void MCM_DisableInterruptStatus(MCM_Type *base, uint32_t mask)

Disables the interrupt.

Parameters:

base – MCM peripheral base address.
mask – Interrupt status flags mask(_mcm_interrupt_flag).

static inline uint16_t MCM_GetInterruptStatus(MCM_Type *base)

Gets the Interrupt status .

Parameters:

base – MCM peripheral base address.

static inline void MCM_ClearCacheWriteBufferErroStatus(MCM_Type *base)

Clears the Interrupt status .

Parameters:

base – MCM peripheral base address.

static inline uint32_t MCM_GetBufferFaultAddress(MCM_Type *base)

Gets buffer fault address.

Parameters:

base – MCM peripheral base address.

static inline void MCM_GetBufferFaultAttribute(MCM_Type *base, mcm_buffer_fault_attribute_t *bufferfault)

Gets buffer fault attributes.

Parameters:

base – MCM peripheral base address.

static inline uint32_t MCM_GetBufferFaultData(MCM_Type *base)

Gets buffer fault data.

Parameters:

base – MCM peripheral base address.

static inline void MCM_LimitCodeCachePeripheralWriteBuffering(MCM_Type *base, bool enable)

Limit code cache peripheral write buffering.

Parameters:

base – MCM peripheral base address.
enable – Used to enable/disable limit code cache peripheral write buffering.
- true Enable limit code cache peripheral write buffering.
- false disable limit code cache peripheral write buffering.

static inline void MCM_BypassFixedCodeCacheMap(MCM_Type *base, bool enable)

Bypass fixed code cache map.

Parameters:

base – MCM peripheral base address.
enable – Used to enable/disable bypass fixed code cache map.
- true Enable bypass fixed code cache map.
- false disable bypass fixed code cache map.

static inline void MCM_EnableCodeBusCache(MCM_Type *base, bool enable)

Enables/Disables code bus cache.

Parameters:

base – MCM peripheral base address.
enable – Used to disable/enable code bus cache.
- true Enable code bus cache.
- false disable code bus cache.

static inline void MCM_ForceCodeCacheToNoAllocation(MCM_Type *base, bool enable)

Force code cache to no allocation.

Parameters:

base – MCM peripheral base address.
enable – Used to force code cache to allocation or no allocation.
- true Force code cache to no allocation.
- false Force code cache to allocation.

static inline void MCM_EnableCodeCacheWriteBuffer(MCM_Type *base, bool enable)

Enables/Disables code cache write buffer.

Parameters:

base – MCM peripheral base address.
enable – Used to enable/disable code cache write buffer.
- true Enable code cache write buffer.
- false Disable code cache write buffer.

static inline void MCM_ClearCodeBusCache(MCM_Type *base)

Clear code bus cache.

Parameters:

base – MCM peripheral base address.

static inline void MCM_EnablePcParityFaultReport(MCM_Type *base, bool enable)

Enables/Disables PC Parity Fault Report.

Parameters:

base – MCM peripheral base address.
enable – Used to enable/disable PC Parity Fault Report.
- true Enable PC Parity Fault Report.
- false disable PC Parity Fault Report.

static inline void MCM_EnablePcParity(MCM_Type *base, bool enable)

Enables/Disables PC Parity.

Parameters:

base – MCM peripheral base address.
enable – Used to enable/disable PC Parity.
- true Enable PC Parity.
- false disable PC Parity.

static inline void MCM_LockConfigState(MCM_Type *base)

Lock the configuration state.

Parameters:

base – MCM peripheral base address.

static inline void MCM_EnableCacheParityReporting(MCM_Type *base, bool enable)

Enables/Disables cache parity reporting.

Parameters:

base – MCM peripheral base address.
enable – Used to enable/disable cache parity reporting.
- true Enable cache parity reporting.
- false disable cache parity reporting.

static inline uint32_t MCM_GetLmemFaultAddress(MCM_Type *base)

Gets LMEM fault address.

Parameters:

base – MCM peripheral base address.

static inline void MCM_GetLmemFaultAttribute(MCM_Type *base, mcm_lmem_fault_attribute_t *lmemFault)

Get LMEM fault attributes.

Parameters:

base – MCM peripheral base address.

static inline uint64_t MCM_GetLmemFaultData(MCM_Type *base)

Gets LMEM fault data.

Parameters:

base – MCM peripheral base address.

MCM_LMFATR_TYPE_MASK

MCM_LMFATR_MODE_MASK

MCM_LMFATR_BUFF_MASK

MCM_LMFATR_CACH_MASK

MCM_ISCR_STAT_MASK

MCM_ISCR_CPEE_MASK

FSL_COMPONENT_ID

union _mcm_buffer_fault_attribute

#include <fsl_mcm.h>

The union of buffer fault attribute.

Public Members

uint32_t attribute: Indicates the faulting attributes, when a properly-enabled cache write buffer error interrupt event is detected.

struct _mcm_buffer_fault_attribute._mcm_buffer_fault_attribut attribute_memory

struct _mcm_buffer_fault_attribut

#include <fsl_mcm.h>

Public Members

uint32_t busErrorDataAccessType: Indicates the type of cache write buffer access.

uint32_t busErrorPrivilegeLevel: Indicates the privilege level of the cache write buffer access.

uint32_t busErrorSize: Indicates the size of the cache write buffer access.

uint32_t busErrorAccess: Indicates the type of system bus access.

uint32_t busErrorMasterID: Indicates the crossbar switch bus master number of the captured cache write buffer bus error.

uint32_t busErrorOverrun: Indicates if another cache write buffer bus error is detected.

union _mcm_lmem_fault_attribute

#include <fsl_mcm.h>

The union of LMEM fault attribute.

Public Members

uint32_t attribute: Indicates the attributes of the LMEM fault detected.

struct _mcm_lmem_fault_attribute._mcm_lmem_fault_attribut attribute_memory

struct _mcm_lmem_fault_attribut

#include <fsl_mcm.h>

Public Members

uint32_t parityFaultProtectionSignal: Indicates the features of parity fault protection signal.

uint32_t parityFaultMasterSize: Indicates the parity fault master size.

uint32_t parityFaultWrite: Indicates the parity fault is caused by read or write.

uint32_t backdoorAccess: Indicates the LMEM access fault is initiated by core access or backdoor access.

uint32_t parityFaultSyndrome: Indicates the parity fault syndrome.

uint32_t overrun: Indicates the number of faultss.

PIT: Periodic Interrupt Timer

void PIT_Init(PIT_Type *base, const pit_config_t *config)

Ungates the PIT clock, enables the PIT module, and configures the peripheral for basic operations.

Note

This API should be called at the beginning of the application using the PIT driver.

Parameters:

base – PIT peripheral base address
config – Pointer to the user’s PIT config structure

void PIT_Deinit(PIT_Type *base)

Gates the PIT clock and disables the PIT module.

Parameters:

base – PIT peripheral base address

static inline void PIT_GetDefaultConfig(pit_config_t *config)

Fills in the PIT configuration structure with the default settings.

The default values are as follows.

config->enableRunInDebug = false;

Parameters:

config – Pointer to the configuration structure.

static inline void PIT_SetTimerChainMode(PIT_Type *base, pit_chnl_t channel, bool enable)

Enables or disables chaining a timer with the previous timer.

When a timer has a chain mode enabled, it only counts after the previous timer has expired. If the timer n-1 has counted down to 0, counter n decrements the value by one. Each timer is 32-bits, which allows the developers to chain timers together and form a longer timer (64-bits and larger). The first timer (timer 0) can’t be chained to any other timer.

Parameters:

base – PIT peripheral base address
channel – Timer channel number which is chained with the previous timer
enable – Enable or disable chain. true: Current timer is chained with the previous timer. false: Timer doesn’t chain with other timers.

static inline void PIT_EnableInterrupts(PIT_Type *base, pit_chnl_t channel, uint32_t mask)

Enables the selected PIT interrupts.

Parameters:

base – PIT peripheral base address
channel – Timer channel number
mask – The interrupts to enable. This is a logical OR of members of the enumeration pit_interrupt_enable_t

static inline void PIT_DisableInterrupts(PIT_Type *base, pit_chnl_t channel, uint32_t mask)

Disables the selected PIT interrupts.

Parameters:

base – PIT peripheral base address
channel – Timer channel number
mask – The interrupts to disable. This is a logical OR of members of the enumeration pit_interrupt_enable_t

static inline uint32_t PIT_GetEnabledInterrupts(PIT_Type *base, pit_chnl_t channel)

Gets the enabled PIT interrupts.

Parameters:

base – PIT peripheral base address
channel – Timer channel number

Returns:

The enabled interrupts. This is the logical OR of members of the enumeration pit_interrupt_enable_t

static inline uint32_t PIT_GetStatusFlags(PIT_Type *base, pit_chnl_t channel)

Gets the PIT status flags.

Parameters:

base – PIT peripheral base address
channel – Timer channel number

Returns:

The status flags. This is the logical OR of members of the enumeration pit_status_flags_t

static inline void PIT_ClearStatusFlags(PIT_Type *base, pit_chnl_t channel, uint32_t mask)

Clears the PIT status flags.

Parameters:

base – PIT peripheral base address
channel – Timer channel number
mask – The status flags to clear. This is a logical OR of members of the enumeration pit_status_flags_t

static inline void PIT_SetTimerPeriod(PIT_Type *base, pit_chnl_t channel, uint32_t count)

Sets the timer period in units of count.

Timers begin counting from the value set by this function until it reaches 0, then it generates an interrupt and load this register value again. Writing a new value to this register does not restart the timer. Instead, the value is loaded after the timer expires.

Note

Users can call the utility macros provided in fsl_common.h to convert to ticks.

Parameters:

base – PIT peripheral base address
channel – Timer channel number
count – Timer period in units of ticks

static inline uint32_t PIT_GetCurrentTimerCount(PIT_Type *base, pit_chnl_t channel)

Reads the current timer counting value.

This function returns the real-time timer counting value, in a range from 0 to a timer period.

Note

Users can call the utility macros provided in fsl_common.h to convert ticks to usec or msec.

Parameters:

base – PIT peripheral base address
channel – Timer channel number

Returns:

Current timer counting value in ticks

static inline void PIT_StartTimer(PIT_Type *base, pit_chnl_t channel)

Starts the timer counting.

After calling this function, timers load period value, count down to 0 and then load the respective start value again. Each time a timer reaches 0, it generates a trigger pulse and sets the timeout interrupt flag.

Parameters:

base – PIT peripheral base address
channel – Timer channel number.

static inline void PIT_StopTimer(PIT_Type *base, pit_chnl_t channel)

Stops the timer counting.

This function stops every timer counting. Timers reload their periods respectively after the next time they call the PIT_DRV_StartTimer.

Parameters:

base – PIT peripheral base address
channel – Timer channel number.

FSL_PIT_DRIVER_VERSION: PIT Driver Version 2.0.5.

enum _pit_chnl

List of PIT channels.

Note

Actual number of available channels is SoC dependent

Values:

enumerator kPIT_Chnl_0: PIT channel number 0

enumerator kPIT_Chnl_1: PIT channel number 1

enumerator kPIT_Chnl_2: PIT channel number 2

enumerator kPIT_Chnl_3: PIT channel number 3

enum _pit_interrupt_enable

List of PIT interrupts.

Values:

enumerator kPIT_TimerInterruptEnable: Timer interrupt enable

enum _pit_status_flags

List of PIT status flags.

Values:

enumerator kPIT_TimerFlag: Timer flag

typedef enum _pit_chnl pit_chnl_t: List of PIT channels.

Note

Actual number of available channels is SoC dependent

typedef enum _pit_interrupt_enable pit_interrupt_enable_t: List of PIT interrupts.

typedef enum _pit_status_flags pit_status_flags_t: List of PIT status flags.

typedef struct _pit_config pit_config_t

PIT configuration structure.

This structure holds the configuration settings for the PIT peripheral. To initialize this structure to reasonable defaults, call the PIT_GetDefaultConfig() function and pass a pointer to your config structure instance.

The configuration structure can be made constant so it resides in flash.

uint64_t PIT_GetLifetimeTimerCount(PIT_Type *base)

Reads the current lifetime counter value.

The lifetime timer is a 64-bit timer which chains timer 0 and timer 1 together. Timer 0 and 1 are chained by calling the PIT_SetTimerChainMode before using this timer. The period of lifetime timer is equal to the “period of timer 0 * period of timer 1”. For the 64-bit value, the higher 32-bit has the value of timer 1, and the lower 32-bit has the value of timer 0.

Parameters:

base – PIT peripheral base address

Returns:

Current lifetime timer value

struct _pit_config

#include <fsl_pit.h>

PIT configuration structure.

This structure holds the configuration settings for the PIT peripheral. To initialize this structure to reasonable defaults, call the PIT_GetDefaultConfig() function and pass a pointer to your config structure instance.

The configuration structure can be made constant so it resides in flash.

Public Members

bool enableRunInDebug: true: Timers run in debug mode; false: Timers stop in debug mode

PMC: Power Management Controller

static inline void PMC_GetVersionId(PMC_Type *base, pmc_version_id_t *versionId)

Gets the PMC version ID.

This function gets the PMC version ID, including major version number, minor version number, and a feature specification number.

Parameters:

base – PMC peripheral base address.
versionId – Pointer to version ID structure.

void PMC_GetParam(PMC_Type *base, pmc_param_t *param)

Gets the PMC parameter.

This function gets the PMC parameter including the VLPO enable and the HVD enable.

Parameters:

base – PMC peripheral base address.
param – Pointer to PMC param structure.

void PMC_ConfigureLowVoltDetect(PMC_Type *base, const pmc_low_volt_detect_config_t *config)

Configures the low-voltage detect setting.

This function configures the low-voltage detect setting, including the trip point voltage setting, enables or disables the interrupt, enables or disables the system reset.

Parameters:

base – PMC peripheral base address.
config – Low-voltage detect configuration structure.

static inline bool PMC_GetLowVoltDetectFlag(PMC_Type *base)

Gets the Low-voltage Detect Flag status.

This function reads the current LVDF status. If it returns 1, a low-voltage event is detected.

Parameters:

base – PMC peripheral base address.

Returns:

Current low-voltage detect flag

true: Low-voltage detected
false: Low-voltage not detected

static inline void PMC_ClearLowVoltDetectFlag(PMC_Type *base)

Acknowledges clearing the Low-voltage Detect flag.

This function acknowledges the low-voltage detection errors (write 1 to clear LVDF).

Parameters:

base – PMC peripheral base address.

void PMC_ConfigureLowVoltWarning(PMC_Type *base, const pmc_low_volt_warning_config_t *config)

Configures the low-voltage warning setting.

This function configures the low-voltage warning setting, including the trip point voltage setting and enabling or disabling the interrupt.

Parameters:

base – PMC peripheral base address.
config – Low-voltage warning configuration structure.

static inline bool PMC_GetLowVoltWarningFlag(PMC_Type *base)

Gets the Low-voltage Warning Flag status.

This function polls the current LVWF status. When 1 is returned, it indicates a low-voltage warning event. LVWF is set when V Supply transitions below the trip point or after reset and V Supply is already below the V LVW.

Parameters:

base – PMC peripheral base address.

Returns:

Current LVWF status

true: Low-voltage Warning Flag is set.
false: the Low-voltage Warning does not happen.

static inline void PMC_ClearLowVoltWarningFlag(PMC_Type *base)

Acknowledges the Low-voltage Warning flag.

This function acknowledges the low voltage warning errors (write 1 to clear LVWF).

Parameters:

base – PMC peripheral base address.

void PMC_ConfigureHighVoltDetect(PMC_Type *base, const pmc_high_volt_detect_config_t *config)

Configures the high-voltage detect setting.

This function configures the high-voltage detect setting, including the trip point voltage setting, enabling or disabling the interrupt, enabling or disabling the system reset.

Parameters:

base – PMC peripheral base address.
config – High-voltage detect configuration structure.

static inline bool PMC_GetHighVoltDetectFlag(PMC_Type *base)

Gets the High-voltage Detect Flag status.

This function reads the current HVDF status. If it returns 1, a low voltage event is detected.

Parameters:

base – PMC peripheral base address.

Returns:

Current high-voltage detect flag

true: High-voltage detected
false: High-voltage not detected

static inline void PMC_ClearHighVoltDetectFlag(PMC_Type *base)

Acknowledges clearing the High-voltage Detect flag.

This function acknowledges the high-voltage detection errors (write 1 to clear HVDF).

Parameters:

base – PMC peripheral base address.

void PMC_ConfigureBandgapBuffer(PMC_Type *base, const pmc_bandgap_buffer_config_t *config)

Configures the PMC bandgap.

This function configures the PMC bandgap, including the drive select and behavior in low-power mode.

Parameters:

base – PMC peripheral base address.
config – Pointer to the configuration structure

static inline bool PMC_GetPeriphIOIsolationFlag(PMC_Type *base)

Gets the acknowledge Peripherals and I/O pads isolation flag.

This function reads the Acknowledge Isolation setting that indicates whether certain peripherals and the I/O pads are in a latched state as a result of having been in the VLLS mode.

Parameters:

base – PMC peripheral base address.
base – Base address for current PMC instance.

Returns:

ACK isolation 0 - Peripherals and I/O pads are in a normal run state. 1 - Certain peripherals and I/O pads are in an isolated and latched state.

static inline void PMC_ClearPeriphIOIsolationFlag(PMC_Type *base)

Acknowledges the isolation flag to Peripherals and I/O pads.

This function clears the ACK Isolation flag. Writing one to this setting when it is set releases the I/O pads and certain peripherals to their normal run mode state.

Parameters:

base – PMC peripheral base address.

static inline bool PMC_IsRegulatorInRunRegulation(PMC_Type *base)

Gets the regulator regulation status.

This function returns the regulator to run a regulation status. It provides the current status of the internal voltage regulator.

Parameters:

base – PMC peripheral base address.
base – Base address for current PMC instance.

Returns:

Regulation status 0 - Regulator is in a stop regulation or in transition to/from the regulation. 1 - Regulator is in a run regulation.

FSL_PMC_DRIVER_VERSION

PMC driver version.

Version 2.0.3.

enum _pmc_low_volt_detect_volt_select

Low-voltage Detect Voltage Select.

Values:

enumerator kPMC_LowVoltDetectLowTrip: Low-trip point selected (VLVD = VLVDL )

enumerator kPMC_LowVoltDetectHighTrip: High-trip point selected (VLVD = VLVDH )

enum _pmc_low_volt_warning_volt_select

Low-voltage Warning Voltage Select.

Values:

enumerator kPMC_LowVoltWarningLowTrip: Low-trip point selected (VLVW = VLVW1)

enumerator kPMC_LowVoltWarningMid1Trip: Mid 1 trip point selected (VLVW = VLVW2)

enumerator kPMC_LowVoltWarningMid2Trip: Mid 2 trip point selected (VLVW = VLVW3)

enumerator kPMC_LowVoltWarningHighTrip: High-trip point selected (VLVW = VLVW4)

enum _pmc_high_volt_detect_volt_select

High-voltage Detect Voltage Select.

Values:

enumerator kPMC_HighVoltDetectLowTrip: Low-trip point selected (VHVD = VHVDL )

enumerator kPMC_HighVoltDetectHighTrip: High-trip point selected (VHVD = VHVDH )

enum _pmc_bandgap_buffer_drive_select

Bandgap Buffer Drive Select.

Values:

enumerator kPMC_BandgapBufferDriveLow: Low-drive.

enumerator kPMC_BandgapBufferDriveHigh: High-drive.

enum _pmc_vlp_freq_option

VLPx Option.

Values:

enumerator kPMC_FreqRestrict: Frequency is restricted in VLPx mode.

enumerator kPMC_FreqUnrestrict: Frequency is unrestricted in VLPx mode.

typedef enum _pmc_low_volt_detect_volt_select pmc_low_volt_detect_volt_select_t: Low-voltage Detect Voltage Select.

typedef enum _pmc_low_volt_warning_volt_select pmc_low_volt_warning_volt_select_t: Low-voltage Warning Voltage Select.

typedef enum _pmc_high_volt_detect_volt_select pmc_high_volt_detect_volt_select_t: High-voltage Detect Voltage Select.

typedef enum _pmc_bandgap_buffer_drive_select pmc_bandgap_buffer_drive_select_t: Bandgap Buffer Drive Select.

typedef enum _pmc_vlp_freq_option pmc_vlp_freq_mode_t: VLPx Option.

typedef struct _pmc_version_id pmc_version_id_t: IP version ID definition.

typedef struct _pmc_param pmc_param_t: IP parameter definition.

typedef struct _pmc_low_volt_detect_config pmc_low_volt_detect_config_t: Low-voltage Detect Configuration Structure.

typedef struct _pmc_low_volt_warning_config pmc_low_volt_warning_config_t: Low-voltage Warning Configuration Structure.

typedef struct _pmc_high_volt_detect_config pmc_high_volt_detect_config_t: High-voltage Detect Configuration Structure.

typedef struct _pmc_bandgap_buffer_config pmc_bandgap_buffer_config_t: Bandgap Buffer configuration.

struct _pmc_version_id

#include <fsl_pmc.h>

IP version ID definition.

Public Members

uint16_t feature: Feature Specification Number.

uint8_t minor: Minor version number.

uint8_t major: Major version number.

struct _pmc_param

#include <fsl_pmc.h>

IP parameter definition.

Public Members

bool vlpoEnable: VLPO enable.

bool hvdEnable: HVD enable.

struct _pmc_low_volt_detect_config

#include <fsl_pmc.h>

Low-voltage Detect Configuration Structure.

Public Members

bool enableInt: Enable interrupt when Low-voltage detect

bool enableReset: Enable system reset when Low-voltage detect

pmc_low_volt_detect_volt_select_t voltSelect: Low-voltage detect trip point voltage selection

struct _pmc_low_volt_warning_config

#include <fsl_pmc.h>

Low-voltage Warning Configuration Structure.

Public Members

bool enableInt: Enable interrupt when low-voltage warning

pmc_low_volt_warning_volt_select_t voltSelect: Low-voltage warning trip point voltage selection

struct _pmc_high_volt_detect_config

#include <fsl_pmc.h>

High-voltage Detect Configuration Structure.

Public Members

bool enableInt: Enable interrupt when high-voltage detect

bool enableReset: Enable system reset when high-voltage detect

pmc_high_volt_detect_volt_select_t voltSelect: High-voltage detect trip point voltage selection

struct _pmc_bandgap_buffer_config

#include <fsl_pmc.h>

Bandgap Buffer configuration.

Public Members

bool enable: Enable bandgap buffer.

bool enableInLowPowerMode: Enable bandgap buffer in low-power mode.

pmc_bandgap_buffer_drive_select_t drive: Bandgap buffer drive select.

PORT: Port Control and Interrupts

static inline void PORT_SetPinConfig(PORT_Type *base, uint32_t pin, const port_pin_config_t *config)

Sets the port PCR register.

This is an example to define an input pin or output pin PCR configuration.

// Define a digital input pin PCR configuration
port_pin_config_t config = {
     kPORT_PullUp,
     kPORT_FastSlewRate,
     kPORT_PassiveFilterDisable,
     kPORT_OpenDrainDisable,
     kPORT_LowDriveStrength,
     kPORT_MuxAsGpio,
     kPORT_UnLockRegister,
};

Parameters:

base – PORT peripheral base pointer.
pin – PORT pin number.
config – PORT PCR register configuration structure.

static inline void PORT_SetMultiplePinsConfig(PORT_Type *base, uint32_t mask, const port_pin_config_t *config)

Sets the port PCR register for multiple pins.

This is an example to define input pins or output pins PCR configuration.

Define a digital input pin PCR configuration
port_pin_config_t config = {
     kPORT_PullUp ,
     kPORT_PullEnable,
     kPORT_FastSlewRate,
     kPORT_PassiveFilterDisable,
     kPORT_OpenDrainDisable,
     kPORT_LowDriveStrength,
     kPORT_MuxAsGpio,
     kPORT_UnlockRegister,
};

Parameters:

base – PORT peripheral base pointer.
mask – PORT pin number macro.
config – PORT PCR register configuration structure.

static inline void PORT_SetMultipleInterruptPinsConfig(PORT_Type *base, uint32_t mask, port_interrupt_t config)

Sets the port interrupt configuration in PCR register for multiple pins.

Parameters:

base – PORT peripheral base pointer.
mask – PORT pin number macro.
config – PORT pin interrupt configuration.
- kPORT_InterruptOrDMADisabled: Interrupt/DMA request disabled.
- kPORT_DMARisingEdge : DMA request on rising edge(if the DMA requests exit).
- kPORT_DMAFallingEdge: DMA request on falling edge(if the DMA requests exit).
- kPORT_DMAEitherEdge : DMA request on either edge(if the DMA requests exit).
- kPORT_FlagRisingEdge : Flag sets on rising edge(if the Flag states exit).
- kPORT_FlagFallingEdge : Flag sets on falling edge(if the Flag states exit).
- kPORT_FlagEitherEdge : Flag sets on either edge(if the Flag states exit).
- kPORT_InterruptLogicZero : Interrupt when logic zero.
- kPORT_InterruptRisingEdge : Interrupt on rising edge.
- kPORT_InterruptFallingEdge: Interrupt on falling edge.
- kPORT_InterruptEitherEdge : Interrupt on either edge.
- kPORT_InterruptLogicOne : Interrupt when logic one.
- kPORT_ActiveHighTriggerOutputEnable : Enable active high-trigger output (if the trigger states exit).
- kPORT_ActiveLowTriggerOutputEnable : Enable active low-trigger output (if the trigger states exit)..

static inline void PORT_SetPinMux(PORT_Type *base, uint32_t pin, port_mux_t mux)

Configures the pin muxing.

Note

: This function is NOT recommended to use together with the PORT_SetPinsConfig, because the PORT_SetPinsConfig need to configure the pin mux anyway (Otherwise the pin mux is reset to zero : kPORT_PinDisabledOrAnalog). This function is recommended to use to reset the pin mux

Parameters:

base – PORT peripheral base pointer.
pin – PORT pin number.
mux – pin muxing slot selection.
- kPORT_PinDisabledOrAnalog: Pin disabled or work in analog function.
- kPORT_MuxAsGpio : Set as GPIO.
- kPORT_MuxAlt2 : chip-specific.
- kPORT_MuxAlt3 : chip-specific.
- kPORT_MuxAlt4 : chip-specific.
- kPORT_MuxAlt5 : chip-specific.
- kPORT_MuxAlt6 : chip-specific.
- kPORT_MuxAlt7 : chip-specific.

static inline void PORT_EnablePinsDigitalFilter(PORT_Type *base, uint32_t mask, bool enable)

Enables the digital filter in one port, each bit of the 32-bit register represents one pin.

Parameters:

base – PORT peripheral base pointer.
mask – PORT pin number macro.
enable – PORT digital filter configuration.

static inline void PORT_SetDigitalFilterConfig(PORT_Type *base, const port_digital_filter_config_t *config)

Sets the digital filter in one port, each bit of the 32-bit register represents one pin.

Parameters:

base – PORT peripheral base pointer.
config – PORT digital filter configuration structure.

static inline void PORT_SetPinInterruptConfig(PORT_Type *base, uint32_t pin, port_interrupt_t config)

Configures the port pin interrupt/DMA request.

Parameters:

base – PORT peripheral base pointer.
pin – PORT pin number.
config – PORT pin interrupt configuration.
- kPORT_InterruptOrDMADisabled: Interrupt/DMA request disabled.
- kPORT_DMARisingEdge : DMA request on rising edge(if the DMA requests exit).
- kPORT_DMAFallingEdge: DMA request on falling edge(if the DMA requests exit).
- kPORT_DMAEitherEdge : DMA request on either edge(if the DMA requests exit).
- kPORT_FlagRisingEdge : Flag sets on rising edge(if the Flag states exit).
- kPORT_FlagFallingEdge : Flag sets on falling edge(if the Flag states exit).
- kPORT_FlagEitherEdge : Flag sets on either edge(if the Flag states exit).
- kPORT_InterruptLogicZero : Interrupt when logic zero.
- kPORT_InterruptRisingEdge : Interrupt on rising edge.
- kPORT_InterruptFallingEdge: Interrupt on falling edge.
- kPORT_InterruptEitherEdge : Interrupt on either edge.
- kPORT_InterruptLogicOne : Interrupt when logic one.
- kPORT_ActiveHighTriggerOutputEnable : Enable active high-trigger output (if the trigger states exit).
- kPORT_ActiveLowTriggerOutputEnable : Enable active low-trigger output (if the trigger states exit).

static inline void PORT_SetPinDriveStrength(PORT_Type *base, uint32_t pin, uint8_t strength)

Configures the port pin drive strength.

Parameters:

base – PORT peripheral base pointer.
pin – PORT pin number.
strength – PORT pin drive strength
- kPORT_LowDriveStrength = 0U - Low-drive strength is configured.
- kPORT_HighDriveStrength = 1U - High-drive strength is configured.

static inline uint32_t PORT_GetPinsInterruptFlags(PORT_Type *base)

Reads the whole port status flag.

If a pin is configured to generate the DMA request, the corresponding flag is cleared automatically at the completion of the requested DMA transfer. Otherwise, the flag remains set until a logic one is written to that flag. If configured for a level sensitive interrupt that remains asserted, the flag is set again immediately.

Parameters:

base – PORT peripheral base pointer.

Returns:

Current port interrupt status flags, for example, 0x00010001 means the pin 0 and 16 have the interrupt.

static inline void PORT_ClearPinsInterruptFlags(PORT_Type *base, uint32_t mask)

Clears the multiple pin interrupt status flag.

Parameters:

base – PORT peripheral base pointer.
mask – PORT pin number macro.

FSL_PORT_DRIVER_VERSION: PORT driver version.

enum _port_pull

Internal resistor pull feature selection.

Values:

enumerator kPORT_PullDisable: Internal pull-up/down resistor is disabled.

enumerator kPORT_PullDown: Internal pull-down resistor is enabled.

enumerator kPORT_PullUp: Internal pull-up resistor is enabled.

enum _port_slew_rate

Slew rate selection.

Values:

enumerator kPORT_FastSlewRate: Fast slew rate is configured.

enumerator kPORT_SlowSlewRate: Slow slew rate is configured.

enum _port_open_drain_enable

Open Drain feature enable/disable.

Values:

enumerator kPORT_OpenDrainDisable: Open drain output is disabled.

enumerator kPORT_OpenDrainEnable: Open drain output is enabled.

enum _port_passive_filter_enable

Passive filter feature enable/disable.

Values:

enumerator kPORT_PassiveFilterDisable: Passive input filter is disabled.

enumerator kPORT_PassiveFilterEnable: Passive input filter is enabled.

enum _port_drive_strength

Configures the drive strength.

Values:

enumerator kPORT_LowDriveStrength: Low-drive strength is configured.

enumerator kPORT_HighDriveStrength: High-drive strength is configured.

enum _port_lock_register

Unlock/lock the pin control register field[15:0].

Values:

enumerator kPORT_UnlockRegister: Pin Control Register fields [15:0] are not locked.

enumerator kPORT_LockRegister: Pin Control Register fields [15:0] are locked.

enum _port_mux

Pin mux selection.

Values:

enumerator kPORT_PinDisabledOrAnalog: Corresponding pin is disabled, but is used as an analog pin.

enumerator kPORT_MuxAsGpio: Corresponding pin is configured as GPIO.

enumerator kPORT_MuxAlt0: Chip-specific

enumerator kPORT_MuxAlt1: Chip-specific

enumerator kPORT_MuxAlt2: Chip-specific

enumerator kPORT_MuxAlt3: Chip-specific

enumerator kPORT_MuxAlt4: Chip-specific

enumerator kPORT_MuxAlt5: Chip-specific

enumerator kPORT_MuxAlt6: Chip-specific

enumerator kPORT_MuxAlt7: Chip-specific

enumerator kPORT_MuxAlt8: Chip-specific

enumerator kPORT_MuxAlt9: Chip-specific

enumerator kPORT_MuxAlt10: Chip-specific

enumerator kPORT_MuxAlt11: Chip-specific

enumerator kPORT_MuxAlt12: Chip-specific

enumerator kPORT_MuxAlt13: Chip-specific

enumerator kPORT_MuxAlt14: Chip-specific

enumerator kPORT_MuxAlt15: Chip-specific

enum _port_interrupt

Configures the interrupt generation condition.

Values:

enumerator kPORT_InterruptOrDMADisabled: Interrupt/DMA request is disabled.

enumerator kPORT_DMARisingEdge: DMA request on rising edge.

enumerator kPORT_DMAFallingEdge: DMA request on falling edge.

enumerator kPORT_DMAEitherEdge: DMA request on either edge.

enumerator kPORT_FlagRisingEdge: Flag sets on rising edge.

enumerator kPORT_FlagFallingEdge: Flag sets on falling edge.

enumerator kPORT_FlagEitherEdge: Flag sets on either edge.

enumerator kPORT_InterruptLogicZero: Interrupt when logic zero.

enumerator kPORT_InterruptRisingEdge: Interrupt on rising edge.

enumerator kPORT_InterruptFallingEdge: Interrupt on falling edge.

enumerator kPORT_InterruptEitherEdge: Interrupt on either edge.

enumerator kPORT_InterruptLogicOne: Interrupt when logic one.

enumerator kPORT_ActiveHighTriggerOutputEnable: Enable active high-trigger output.

enumerator kPORT_ActiveLowTriggerOutputEnable: Enable active low-trigger output.

enum _port_digital_filter_clock_source

Digital filter clock source selection.

Values:

enumerator kPORT_BusClock: Digital filters are clocked by the bus clock.

enumerator kPORT_LpoClock: Digital filters are clocked by the 1 kHz LPO clock.

typedef enum _port_mux port_mux_t: Pin mux selection.

typedef enum _port_interrupt port_interrupt_t: Configures the interrupt generation condition.

typedef enum _port_digital_filter_clock_source port_digital_filter_clock_source_t: Digital filter clock source selection.

typedef struct _port_digital_filter_config port_digital_filter_config_t: PORT digital filter feature configuration definition.

typedef struct _port_pin_config port_pin_config_t: PORT pin configuration structure.

FSL_COMPONENT_ID

struct _port_digital_filter_config

#include <fsl_port.h>

PORT digital filter feature configuration definition.

Public Members

uint32_t digitalFilterWidth: Set digital filter width

port_digital_filter_clock_source_t clockSource: Set digital filter clockSource

struct _port_pin_config

#include <fsl_port.h>

PORT pin configuration structure.

Public Members

uint16_t pullSelect: No-pull/pull-down/pull-up select

uint16_t slewRate: Fast/slow slew rate Configure

uint16_t passiveFilterEnable: Passive filter enable/disable

uint16_t openDrainEnable: Open drain enable/disable

uint16_t driveStrength: Fast/slow drive strength configure

uint16_t lockRegister: Lock/unlock the PCR field[15:0]

RCM: Reset Control Module Driver

static inline void RCM_GetVersionId(RCM_Type *base, rcm_version_id_t *versionId)

Gets the RCM version ID.

This function gets the RCM version ID including the major version number, the minor version number, and the feature specification number.

Parameters:

base – RCM peripheral base address.
versionId – Pointer to the version ID structure.

static inline uint32_t RCM_GetResetSourceImplementedStatus(RCM_Type *base)

Gets the reset source implemented status.

This function gets the RCM parameter that indicates whether the corresponding reset source is implemented. Use source masks defined in the rcm_reset_source_t to get the desired source status.

This is an example.

uint32_t status;

To test whether the MCU is reset using Watchdog.
status = RCM_GetResetSourceImplementedStatus(RCM) & (kRCM_SourceWdog | kRCM_SourcePin);

Parameters:

base – RCM peripheral base address.

Returns:

All reset source implemented status bit map.

static inline uint32_t RCM_GetPreviousResetSources(RCM_Type *base)

Gets the reset source status which caused a previous reset.

This function gets the current reset source status. Use source masks defined in the rcm_reset_source_t to get the desired source status.

This is an example.

uint32_t resetStatus;

To get all reset source statuses.
resetStatus = RCM_GetPreviousResetSources(RCM) & kRCM_SourceAll;

To test whether the MCU is reset using Watchdog.
resetStatus = RCM_GetPreviousResetSources(RCM) & kRCM_SourceWdog;

To test multiple reset sources.
resetStatus = RCM_GetPreviousResetSources(RCM) & (kRCM_SourceWdog | kRCM_SourcePin);

Parameters:

base – RCM peripheral base address.

Returns:

All reset source status bit map.

static inline uint32_t RCM_GetStickyResetSources(RCM_Type *base)

Gets the sticky reset source status.

This function gets the current reset source status that has not been cleared by software for a specific source.

This is an example.

uint32_t resetStatus;

To get all reset source statuses.
resetStatus = RCM_GetStickyResetSources(RCM) & kRCM_SourceAll;

To test whether the MCU is reset using Watchdog.
resetStatus = RCM_GetStickyResetSources(RCM) & kRCM_SourceWdog;

To test multiple reset sources.
resetStatus = RCM_GetStickyResetSources(RCM) & (kRCM_SourceWdog | kRCM_SourcePin);

Parameters:

base – RCM peripheral base address.

Returns:

All reset source status bit map.

static inline void RCM_ClearStickyResetSources(RCM_Type *base, uint32_t sourceMasks)

Clears the sticky reset source status.

This function clears the sticky system reset flags indicated by source masks.

This is an example.

Clears multiple reset sources.
RCM_ClearStickyResetSources(kRCM_SourceWdog | kRCM_SourcePin);

Parameters:

base – RCM peripheral base address.
sourceMasks – reset source status bit map

void RCM_ConfigureResetPinFilter(RCM_Type *base, const rcm_reset_pin_filter_config_t *config)

Configures the reset pin filter.

This function sets the reset pin filter including the filter source, filter width, and so on.

Parameters:

base – RCM peripheral base address.
config – Pointer to the configuration structure.

static inline bool RCM_GetEasyPortModePinStatus(RCM_Type *base)

Gets the EZP_MS_B pin assert status.

This function gets the easy port mode status (EZP_MS_B) pin assert status.

Parameters:

base – RCM peripheral base address.

Returns:

status true - asserted, false - reasserted

static inline rcm_boot_rom_config_t RCM_GetBootRomSource(RCM_Type *base)

Gets the ROM boot source.

This function gets the ROM boot source during the last chip reset.

Parameters:

base – RCM peripheral base address.

Returns:

The ROM boot source.

static inline void RCM_ClearBootRomSource(RCM_Type *base)

Clears the ROM boot source flag.

This function clears the ROM boot source flag.

Parameters:

base – Register base address of RCM

void RCM_SetForceBootRomSource(RCM_Type *base, rcm_boot_rom_config_t config)

Forces the boot from ROM.

This function forces booting from ROM during all subsequent system resets.

Parameters:

base – RCM peripheral base address.
config – Boot configuration.

static inline void RCM_SetSystemResetInterruptConfig(RCM_Type *base, uint32_t intMask, rcm_reset_delay_t delay)

Sets the system reset interrupt configuration.

For a graceful shut down, the RCM supports delaying the assertion of the system reset for a period of time when the reset interrupt is generated. This function can be used to enable the interrupt and the delay period. The interrupts are passed in as bit mask. See rcm_int_t for details. For example, to delay a reset for 512 LPO cycles after the WDOG timeout or loss-of-clock occurs, configure as follows: RCM_SetSystemResetInterruptConfig(kRCM_IntWatchDog | kRCM_IntLossOfClk, kRCM_ResetDelay512Lpo);

Parameters:

base – RCM peripheral base address.
intMask – Bit mask of the system reset interrupts to enable. See rcm_interrupt_enable_t for details.
delay – Bit mask of the system reset interrupts to enable.

FSL_RCM_DRIVER_VERSION: RCM driver version 2.0.4.

enum _rcm_reset_source

System Reset Source Name definitions.

Values:

enumerator kRCM_SourceWakeup: Low-leakage wakeup reset

enumerator kRCM_SourceLvd: Low-voltage detect reset

enumerator kRCM_SourceLoc: Loss of clock reset

enumerator kRCM_SourceLol: Loss of lock reset

enumerator kRCM_SourceWdog: Watchdog reset

enumerator kRCM_SourcePin: External pin reset

enumerator kRCM_SourcePor: Power on reset

enumerator kRCM_SourceJtag: JTAG generated reset

enumerator kRCM_SourceLockup: Core lock up reset

enumerator kRCM_SourceSw: Software reset

enumerator kRCM_SourceMdmap: MDM-AP system reset

enumerator kRCM_SourceEzpt: EzPort reset

enumerator kRCM_SourceSackerr: Parameter could get all reset flags

enumerator kRCM_SourceAll

enum _rcm_run_wait_filter_mode

Reset pin filter select in Run and Wait modes.

Values:

enumerator kRCM_FilterDisable: All filtering disabled

enumerator kRCM_FilterBusClock: Bus clock filter enabled

enumerator kRCM_FilterLpoClock: LPO clock filter enabled

enum _rcm_boot_rom_config

Boot from ROM configuration.

Values:

enumerator kRCM_BootFlash: Boot from flash

enumerator kRCM_BootRomCfg0: Boot from boot ROM due to BOOTCFG0

enumerator kRCM_BootRomFopt: Boot from boot ROM due to FOPT[7]

enumerator kRCM_BootRomBoth: Boot from boot ROM due to both BOOTCFG0 and FOPT[7]

enum _rcm_reset_delay

Maximum delay time from interrupt asserts to system reset.

Values:

enumerator kRCM_ResetDelay8Lpo: Delay 8 LPO cycles.

enumerator kRCM_ResetDelay32Lpo: Delay 32 LPO cycles.

enumerator kRCM_ResetDelay128Lpo: Delay 128 LPO cycles.

enumerator kRCM_ResetDelay512Lpo: Delay 512 LPO cycles.

enum _rcm_interrupt_enable

System reset interrupt enable bit definitions.

Values:

enumerator kRCM_IntNone: No interrupt enabled.

enumerator kRCM_IntLossOfClk: Loss of clock interrupt.

enumerator kRCM_IntLossOfLock: Loss of lock interrupt.

enumerator kRCM_IntWatchDog: Watch dog interrupt.

enumerator kRCM_IntExternalPin: External pin interrupt.

enumerator kRCM_IntGlobal: Global interrupts.

enumerator kRCM_IntCoreLockup: Core lock up interrupt

enumerator kRCM_IntSoftware: software interrupt

enumerator kRCM_IntStopModeAckErr: Stop mode ACK error interrupt.

enumerator kRCM_IntCore1: Core 1 interrupt.

enumerator kRCM_IntAll: Enable all interrupts.

typedef enum _rcm_reset_source rcm_reset_source_t: System Reset Source Name definitions.

typedef enum _rcm_run_wait_filter_mode rcm_run_wait_filter_mode_t: Reset pin filter select in Run and Wait modes.

typedef enum _rcm_boot_rom_config rcm_boot_rom_config_t: Boot from ROM configuration.

typedef enum _rcm_reset_delay rcm_reset_delay_t: Maximum delay time from interrupt asserts to system reset.

typedef enum _rcm_interrupt_enable rcm_interrupt_enable_t: System reset interrupt enable bit definitions.

typedef struct _rcm_version_id rcm_version_id_t: IP version ID definition.

typedef struct _rcm_reset_pin_filter_config rcm_reset_pin_filter_config_t: Reset pin filter configuration.

struct _rcm_version_id

#include <fsl_rcm.h>

IP version ID definition.

Public Members

uint16_t feature: Feature Specification Number.

uint8_t minor: Minor version number.

uint8_t major: Major version number.

struct _rcm_reset_pin_filter_config

#include <fsl_rcm.h>

Reset pin filter configuration.

Public Members

bool enableFilterInStop: Reset pin filter select in stop mode.

rcm_run_wait_filter_mode_t filterInRunWait: Reset pin filter in run/wait mode.

uint8_t busClockFilterCount: Reset pin bus clock filter width.

RTC: Real Time Clock

void RTC_Init(RTC_Type *base, const rtc_config_t *config)

Ungates the RTC clock and configures the peripheral for basic operation.

This function issues a software reset if the timer invalid flag is set.

Note

This API should be called at the beginning of the application using the RTC driver.

Parameters:

base – RTC peripheral base address
config – Pointer to the user’s RTC configuration structure.

static inline void RTC_Deinit(RTC_Type *base)

Stops the timer and gate the RTC clock.

Parameters:

base – RTC peripheral base address

void RTC_GetDefaultConfig(rtc_config_t *config)

Fills in the RTC config struct with the default settings.

The default values are as follows.

config->wakeupSelect = false;
config->updateMode = false;
config->supervisorAccess = false;
config->compensationInterval = 0;
config->compensationTime = 0;

Parameters:

config – Pointer to the user’s RTC configuration structure.

status_t RTC_SetDatetime(RTC_Type *base, const rtc_datetime_t *datetime)

Sets the RTC date and time according to the given time structure.

The RTC counter must be stopped prior to calling this function because writes to the RTC seconds register fail if the RTC counter is running.

Parameters:

base – RTC peripheral base address
datetime – Pointer to the structure where the date and time details are stored.

Returns:

kStatus_Success: Success in setting the time and starting the RTC kStatus_InvalidArgument: Error because the datetime format is incorrect

void RTC_GetDatetime(RTC_Type *base, rtc_datetime_t *datetime)

Gets the RTC time and stores it in the given time structure.

Parameters:

base – RTC peripheral base address
datetime – Pointer to the structure where the date and time details are stored.

status_t RTC_SetAlarm(RTC_Type *base, const rtc_datetime_t *alarmTime)

Sets the RTC alarm time.

The function checks whether the specified alarm time is greater than the present time. If not, the function does not set the alarm and returns an error.

Parameters:

base – RTC peripheral base address
alarmTime – Pointer to the structure where the alarm time is stored.

Returns:

kStatus_Success: success in setting the RTC alarm kStatus_InvalidArgument: Error because the alarm datetime format is incorrect kStatus_Fail: Error because the alarm time has already passed

void RTC_GetAlarm(RTC_Type *base, rtc_datetime_t *datetime)

Returns the RTC alarm time.

Parameters:

base – RTC peripheral base address
datetime – Pointer to the structure where the alarm date and time details are stored.

void RTC_EnableInterrupts(RTC_Type *base, uint32_t mask)

Enables the selected RTC interrupts.

Parameters:

base – RTC peripheral base address
mask – The interrupts to enable. This is a logical OR of members of the enumeration rtc_interrupt_enable_t

void RTC_DisableInterrupts(RTC_Type *base, uint32_t mask)

Disables the selected RTC interrupts.

Parameters:

base – RTC peripheral base address
mask – The interrupts to enable. This is a logical OR of members of the enumeration rtc_interrupt_enable_t

uint32_t RTC_GetEnabledInterrupts(RTC_Type *base)

Gets the enabled RTC interrupts.

Parameters:

base – RTC peripheral base address

Returns:

The enabled interrupts. This is the logical OR of members of the enumeration rtc_interrupt_enable_t

uint32_t RTC_GetStatusFlags(RTC_Type *base)

Gets the RTC status flags.

Parameters:

base – RTC peripheral base address

Returns:

The status flags. This is the logical OR of members of the enumeration rtc_status_flags_t

void RTC_ClearStatusFlags(RTC_Type *base, uint32_t mask)

Clears the RTC status flags.

Parameters:

base – RTC peripheral base address
mask – The status flags to clear. This is a logical OR of members of the enumeration rtc_status_flags_t

static inline void RTC_EnableOscillatorClock(RTC_Type *base, bool enable)

Enable/Disable RTC 32kHz Oscillator clock.

Note

After setting this bit, wait the oscillator startup time before enabling the time counter to allow the 32.768 kHz clock time to stabilize.

Parameters:

base – RTC peripheral base address
enable – Enable/Disable RTC 32.768 kHz clock

static inline void RTC_SetClockSource(RTC_Type *base)

Set RTC clock source.

Deprecated:: Do not use this function. It has been superceded by RTC_EnableOscillatorClock

Note

After setting this bit, wait the oscillator startup time before enabling the time counter to allow the 32.768 kHz clock time to stabilize.

Parameters:

base – RTC peripheral base address

static inline void RTC_EnableLPOClock(RTC_Type *base, bool enable)

Enable/Disable RTC 1kHz LPO clock.

Note

After setting this bit, RTC prescaler increments using the LPO 1kHz clock and not the RTC 32kHz crystal clock.

Parameters:

base – RTC peripheral base address
enable – Enable/Disable RTC 1kHz LPO clock

static inline void RTC_StartTimer(RTC_Type *base)

Starts the RTC time counter.

After calling this function, the timer counter increments once a second provided SR[TOF] or SR[TIF] are not set.

Parameters:

base – RTC peripheral base address

static inline void RTC_StopTimer(RTC_Type *base)

Stops the RTC time counter.

RTC’s seconds register can be written to only when the timer is stopped.

Parameters:

base – RTC peripheral base address

void RTC_GetMonotonicCounter(RTC_Type *base, uint64_t *counter)

Reads the values of the Monotonic Counter High and Monotonic Counter Low and returns them as a single value.

Parameters:

base – RTC peripheral base address
counter – Pointer to variable where the value is stored.

void RTC_SetMonotonicCounter(RTC_Type *base, uint64_t counter)

Writes values Monotonic Counter High and Monotonic Counter Low by decomposing the given single value. The Monotonic Overflow Flag in RTC_SR is cleared due to the API.

Parameters:

base – RTC peripheral base address
counter – Counter value

status_t RTC_IncrementMonotonicCounter(RTC_Type *base)

Increments the Monotonic Counter by one.

Increments the Monotonic Counter (registers RTC_MCLR and RTC_MCHR accordingly) by setting the monotonic counter enable (MER[MCE]) and then writing to the RTC_MCLR register. A write to the monotonic counter low that causes it to overflow also increments the monotonic counter high.

Parameters:

base – RTC peripheral base address

Returns:

kStatus_Success: success kStatus_Fail: error occurred, either time invalid or monotonic overflow flag was found

FSL_RTC_DRIVER_VERSION: Version 2.3.0

enum _rtc_interrupt_enable

List of RTC interrupts.

Values:

enumerator kRTC_TimeInvalidInterruptEnable: Time invalid interrupt.

enumerator kRTC_TimeOverflowInterruptEnable: Time overflow interrupt.

enumerator kRTC_AlarmInterruptEnable: Alarm interrupt.

enumerator kRTC_MonotonicOverflowInterruptEnable: Monotonic Overflow Interrupt Enable

enumerator kRTC_SecondsInterruptEnable: Seconds interrupt.

enumerator kRTC_TestModeInterruptEnable

enumerator kRTC_FlashSecurityInterruptEnable

enumerator kRTC_TamperPinInterruptEnable

enumerator kRTC_SecurityModuleInterruptEnable

enumerator kRTC_LossOfClockInterruptEnable

enum _rtc_status_flags

List of RTC flags.

Values:

enumerator kRTC_TimeInvalidFlag: Time invalid flag

enumerator kRTC_TimeOverflowFlag: Time overflow flag

enumerator kRTC_AlarmFlag: Alarm flag

enumerator kRTC_MonotonicOverflowFlag: Monotonic Overflow Flag

enumerator kRTC_TamperInterruptDetectFlag: Tamper interrupt detect flag

enumerator kRTC_TestModeFlag

enumerator kRTC_FlashSecurityFlag

enumerator kRTC_TamperPinFlag

enumerator kRTC_SecurityTamperFlag

enumerator kRTC_LossOfClockTamperFlag

enum _rtc_osc_cap_load

List of RTC Oscillator capacitor load settings.

Values:

enumerator kRTC_Capacitor_2p: 2 pF capacitor load

enumerator kRTC_Capacitor_4p: 4 pF capacitor load

enumerator kRTC_Capacitor_8p: 8 pF capacitor load

enumerator kRTC_Capacitor_16p: 16 pF capacitor load

typedef enum _rtc_interrupt_enable rtc_interrupt_enable_t: List of RTC interrupts.

typedef enum _rtc_status_flags rtc_status_flags_t: List of RTC flags.

typedef enum _rtc_osc_cap_load rtc_osc_cap_load_t: List of RTC Oscillator capacitor load settings.

typedef struct _rtc_datetime rtc_datetime_t: Structure is used to hold the date and time.

typedef struct _rtc_pin_config rtc_pin_config_t: RTC pin config structure.

typedef struct _rtc_config rtc_config_t

RTC config structure.

This structure holds the configuration settings for the RTC peripheral. To initialize this structure to reasonable defaults, call the RTC_GetDefaultConfig() function and pass a pointer to your config structure instance.

The config struct can be made const so it resides in flash

static inline uint32_t RTC_GetTamperTimeSeconds(RTC_Type *base)

Get the RTC tamper time seconds.

Parameters:

base – RTC peripheral base address

static inline void RTC_SetOscCapLoad(RTC_Type *base, uint32_t capLoad)

This function sets the specified capacitor configuration for the RTC oscillator.

Parameters:

base – RTC peripheral base address
capLoad – Oscillator loads to enable. This is a logical OR of members of the enumeration rtc_osc_cap_load_t

static inline void RTC_Reset(RTC_Type *base)

Performs a software reset on the RTC module.

This resets all RTC registers except for the SWR bit and the RTC_WAR and RTC_RAR registers. The SWR bit is cleared by software explicitly clearing it.

Parameters:

base – RTC peripheral base address

static inline void RTC_EnableWakeUpPin(RTC_Type *base, bool enable)

Enables or disables the RTC Wakeup Pin Operation.

This function enable or disable RTC Wakeup Pin. The wakeup pin is optional and not available on all devices.

Parameters:

base – RTC_Type base pointer.
enable – true to enable, false to disable.

struct _rtc_datetime

#include <fsl_rtc.h>

Structure is used to hold the date and time.

Public Members

uint16_t year: Range from 1970 to 2099.

uint8_t month: Range from 1 to 12.

uint8_t day: Range from 1 to 31 (depending on month).

uint8_t hour: Range from 0 to 23.

uint8_t minute: Range from 0 to 59.

uint8_t second: Range from 0 to 59.

struct _rtc_pin_config

#include <fsl_rtc.h>

RTC pin config structure.

Public Members

bool inputLogic: true: Tamper pin input data is logic one. false: Tamper pin input data is logic zero.

bool pinActiveLow: true: Tamper pin is active low. false: Tamper pin is active high.

bool filterEnable: true: Input filter is enabled on the tamper pin. false: Input filter is disabled on the tamper pin.

bool pullSelectNegate: true: Tamper pin pull resistor direction will negate the tamper pin. false: Tamper pin pull resistor direction will assert the tamper pin.

bool pullEnable: true: Pull resistor is enabled on tamper pin. false: Pull resistor is disabled on tamper pin.

struct _rtc_config

#include <fsl_rtc.h>

RTC config structure.

This structure holds the configuration settings for the RTC peripheral. To initialize this structure to reasonable defaults, call the RTC_GetDefaultConfig() function and pass a pointer to your config structure instance.

The config struct can be made const so it resides in flash

Public Members

bool wakeupSelect: true: Wakeup pin outputs the 32 KHz clock; false:Wakeup pin used to wakeup the chip

bool updateMode: true: Registers can be written even when locked under certain conditions, false: No writes allowed when registers are locked

bool supervisorAccess: true: Non-supervisor accesses are allowed; false: Non-supervisor accesses are not supported

uint32_t compensationInterval: Compensation interval that is written to the CIR field in RTC TCR Register

uint32_t compensationTime: Compensation time that is written to the TCR field in RTC TCR Register

SIM: System Integration Module Driver

FSL_SIM_DRIVER_VERSION: Driver version.

enum _sim_usb_volt_reg_enable_mode

USB voltage regulator enable setting.

Values:

enumerator kSIM_UsbVoltRegEnable: Enable voltage regulator.

enumerator kSIM_UsbVoltRegEnableInLowPower: Enable voltage regulator in VLPR/VLPW modes.

enumerator kSIM_UsbVoltRegEnableInStop: Enable voltage regulator in STOP/VLPS/LLS/VLLS modes.

enumerator kSIM_UsbVoltRegEnableInAllModes: Enable voltage regulator in all power modes.

enum _sim_flash_mode

Flash enable mode.

Values:

enumerator kSIM_FlashDisableInWait: Disable flash in wait mode.

enumerator kSIM_FlashDisable: Disable flash in normal mode.

typedef struct _sim_uid sim_uid_t: Unique ID.

void SIM_SetUsbVoltRegulatorEnableMode(uint32_t mask)

Sets the USB voltage regulator setting.

This function configures whether the USB voltage regulator is enabled in normal RUN mode, STOP/VLPS/LLS/VLLS modes, and VLPR/VLPW modes. The configurations are passed in as mask value of _sim_usb_volt_reg_enable_mode. For example, to enable USB voltage regulator in RUN/VLPR/VLPW modes and disable in STOP/VLPS/LLS/VLLS mode, use:

SIM_SetUsbVoltRegulatorEnableMode(kSIM_UsbVoltRegEnable | kSIM_UsbVoltRegEnableInLowPower);

Parameters:

mask – USB voltage regulator enable setting.

void SIM_GetUniqueId(sim_uid_t *uid)

Gets the unique identification register value.

Parameters:

uid – Pointer to the structure to save the UID value.

static inline void SIM_SetFlashMode(uint8_t mode)

Sets the flash enable mode.

Parameters:

mode – The mode to set; see _sim_flash_mode for mode details.

struct _sim_uid

#include <fsl_sim.h>

Unique ID.

Public Members

uint32_t H: UIDH.

uint32_t M: SIM_UIDM.

uint32_t L: UIDL.

SLCD: Segment LCD Driver

void SLCD_Init(LCD_Type *base, slcd_config_t *configure)

Initializes the SLCD, ungates the module clock, initializes the power setting, enables all used plane pins, and sets with interrupt and work mode with the configuration.

Parameters:

base – SLCD peripheral base address.
configure – SLCD configuration pointer. For the configuration structure, many parameters have the default setting and the SLCD_Getdefaultconfig() is provided to get them. Use it verified for their applications. The others have no default settings, such as “clkConfig”, and must be provided by the application before calling the SLCD_Init() API.

void SLCD_Deinit(LCD_Type *base)

Deinitializes the SLCD module, gates the module clock, disables an interrupt, and displays the SLCD.

Parameters:

base – SLCD peripheral base address.

void SLCD_GetDefaultConfig(slcd_config_t *configure)

Gets the SLCD default configuration structure. The purpose of this API is to get default parameters of the configuration structure for the SLCD_Init(). Use these initialized parameters unchanged in SLCD_Init() or modify fields of the structure before the calling SLCD_Init(). All default parameters of the configure structuration are listed.

config.displayMode        = kSLCD_NormalMode;
config.powerSupply        = kSLCD_InternalVll3UseChargePump;
config.voltageTrim        = kSLCD_RegulatedVolatgeTrim00;
config.lowPowerBehavior   = kSLCD_EnabledInWaitStop;
config.interruptSrc       = 0;
config.faultConfig        = NULL;
config.frameFreqIntEnable =  false;

Parameters:

configure – The SLCD configuration structure pointer.

static inline void SLCD_StartDisplay(LCD_Type *base)

Enables the SLCD controller, starts generation, and displays the front plane and back plane waveform.

Parameters:

base – SLCD peripheral base address.

static inline void SLCD_StopDisplay(LCD_Type *base)

Stops the SLCD controller. There is no waveform generator and all enabled pins only output a low value.

Parameters:

base – SLCD peripheral base address.

void SLCD_StartBlinkMode(LCD_Type *base, slcd_blink_mode_t mode, slcd_blink_rate_t rate)

Starts the SLCD blink mode.

Parameters:

base – SLCD peripheral base address.
mode – SLCD blink mode.
rate – SLCD blink rate.

static inline void SLCD_StopBlinkMode(LCD_Type *base)

Stops the SLCD blink mode.

Parameters:

base – SLCD peripheral base address.

static inline void SLCD_SetBackPlanePhase(LCD_Type *base, uint32_t pinIndx, slcd_phase_type_t phase)

Sets the SLCD back plane pin phase.

This function sets the SLCD back plane pin phase. “kSLCD_PhaseXActivate” setting means the phase X is active for the back plane pin. “kSLCD_NoPhaseActivate” setting means there is no phase active for the back plane pin. For example, set the back plane pin 20 for phase A.

SLCD_SetBackPlanePhase(LCD, 20, kSLCD_PhaseAActivate);

Parameters:

base – SLCD peripheral base address.
pinIndx – SLCD back plane pin index. Range from 0 to 63.
phase – The phase activates for the back plane pin.

static inline void SLCD_SetFrontPlaneSegments(LCD_Type *base, uint32_t pinIndx, uint8_t operation)

Sets the SLCD front plane segment operation for a front plane pin.

This function sets the SLCD front plane segment on or off operation. Each bit turns on or off the segments associated with the front plane pin in the following pattern: HGFEDCBA (most significant bit controls segment H and least significant bit controls segment A). For example, turn on the front plane pin 20 for phase B and phase C.

SLCD_SetFrontPlaneSegments(LCD, 20, (kSLCD_PhaseBActivate | kSLCD_PhaseCActivate));

Parameters:

base – SLCD peripheral base address.
pinIndx – SLCD back plane pin index. Range from 0 to 63.
operation – The operation for the segment on the front plane pin. This is a logical OR of the enumeration :: slcd_phase_type_t.

static inline void SLCD_SetFrontPlaneOnePhase(LCD_Type *base, uint32_t pinIndx, slcd_phase_index_t phaseIndx, bool enable)

Sets one SLCD front plane pin for one phase.

This function can be used to set one phase on or off for the front plane pin. It can be call many times to set the plane pin for different phase indexes. For example, turn on the front plane pin 20 for phase B and phase C.

SLCD_SetFrontPlaneOnePhase(LCD, 20, kSLCD_PhaseBIndex, true);
SLCD_SetFrontPlaneOnePhase(LCD, 20, kSLCD_PhaseCIndex, true);

Parameters:

base – SLCD peripheral base address.
pinIndx – SLCD back plane pin index. Range from 0 to 63.
phaseIndx – The phase bit index slcd_phase_index_t.
enable – True to turn on the segment for phaseIndx phase false to turn off the segment for phaseIndx phase.

static inline void SLCD_EnablePadSafeState(LCD_Type *base, bool enable)

Enables/disables the SLCD pad safe state.

Forces the safe state on the LCD pad controls. All LCD front plane and backplane functions are disabled.

Parameters:

base – SLCD peripheral base address.
enable – True enable, false disable.

static inline uint32_t SLCD_GetFaultDetectCounter(LCD_Type *base)

Gets the SLCD fault detect counter.

This function gets the number of samples inside the fault detection sample window.

Parameters:

base – SLCD peripheral base address.

Returns:

The fault detect counter. The maximum return value is 255. If the maximum 255 returns, the overflow may happen. Reconfigure the fault detect sample window and fault detect clock prescaler for proper sampling.

void SLCD_EnableInterrupts(LCD_Type *base, uint32_t mask)

Enables the SLCD interrupt. For example, to enable fault detect complete interrupt and frame frequency interrupt, for FSL_FEATURE_SLCD_HAS_FRAME_FREQUENCY_INTERRUPT enabled case, do the following.

SLCD_EnableInterrupts(LCD,kSLCD_FaultDetectCompleteInterrupt | kSLCD_FrameFreqInterrupt);

Parameters:

base – SLCD peripheral base address.
mask – SLCD interrupts to enable. This is a logical OR of the enumeration :: slcd_interrupt_enable_t.

void SLCD_DisableInterrupts(LCD_Type *base, uint32_t mask)

Disables the SLCD interrupt. For example, to disable fault detect complete interrupt and frame frequency interrupt, for FSL_FEATURE_SLCD_HAS_FRAME_FREQUENCY_INTERRUPT enabled case, do the following.

SLCD_DisableInterrupts(LCD,kSLCD_FaultDetectCompleteInterrupt | kSLCD_FrameFreqInterrupt);

Parameters:

base – SLCD peripheral base address.
mask – SLCD interrupts to disable. This is a logical OR of the enumeration :: slcd_interrupt_enable_t.

uint32_t SLCD_GetInterruptStatus(LCD_Type *base)

Gets the SLCD interrupt status flag.

Parameters:

base – SLCD peripheral base address.

Returns:

The event status of the interrupt source. This is the logical OR of members of the enumeration :: slcd_interrupt_enable_t.

void SLCD_ClearInterruptStatus(LCD_Type *base, uint32_t mask)

Clears the SLCD interrupt events status flag.

Parameters:

base – SLCD peripheral base address.
mask – SLCD interrupt source to be cleared. This is the logical OR of members of the enumeration :: slcd_interrupt_enable_t.

FSL_SLCD_DRIVER_VERSION: SLCD driver version.

enum _slcd_power_supply_option

SLCD power supply option.

Values:

enumerator kSLCD_InternalVll3UseChargePump: VLL3 connected to VDD internally, charge pump is used to generate VLL1 and VLL2.

enumerator kSLCD_ExternalVll3UseResistorBiasNetwork: VLL3 is driven externally and resistor bias network is used to generate VLL1 and VLL2.

enumerator kSLCD_ExteranlVll3UseChargePump: VLL3 is driven externally and charge pump is used to generate VLL1 and VLL2.

enumerator kSLCD_InternalVll1UseChargePump: VIREG is connected to VLL1 internally and charge pump is used to generate VLL2 and VLL3.

enum _slcd_regulated_voltage_trim

SLCD regulated voltage trim parameter, be used to meet the desired contrast.

Values:

enumerator kSLCD_RegulatedVolatgeTrim00: Increase the voltage to 0.91 V.

enumerator kSLCD_RegulatedVolatgeTrim01: Increase the voltage to 1.01 V.

enumerator kSLCD_RegulatedVolatgeTrim02: Increase the voltage to 0.96 V.

enumerator kSLCD_RegulatedVolatgeTrim03: Increase the voltage to 1.06 V.

enumerator kSLCD_RegulatedVolatgeTrim04: Increase the voltage to 0.93 V.

enumerator kSLCD_RegulatedVolatgeTrim05: Increase the voltage to 1.03 V.

enumerator kSLCD_RegulatedVolatgeTrim06: Increase the voltage to 0.98 V.

enumerator kSLCD_RegulatedVolatgeTrim07: Increase the voltage to 1.07 V.

enumerator kSLCD_RegulatedVolatgeTrim08: Increase the voltage to 0.92 V.

enumerator kSLCD_RegulatedVolatgeTrim09: Increase the voltage to 1.02 V.

enumerator kSLCD_RegulatedVolatgeTrim10: Increase the voltage to 0.97 V.

enumerator kSLCD_RegulatedVolatgeTrim11: Increase the voltage to 1.08 V.

enumerator kSLCD_RegulatedVolatgeTrim12: Increase the voltage to 0.94 V.

enumerator kSLCD_RegulatedVolatgeTrim13: Increase the voltage to 1.05 V.

enumerator kSLCD_RegulatedVolatgeTrim14: Increase the voltage to 0.99 V.

enumerator kSLCD_RegulatedVolatgeTrim15: Increase the voltage to 1.09 V.

enum _slcd_load_adjust

SLCD load adjust to handle different LCD glass capacitance or configure the LCD charge pump clock source. Adjust the LCD glass capacitance if resistor bias network is enabled: kSLCD_LowLoadOrFastestClkSrc - Low load (LCD glass capacitance 2000pF or lower. LCD or GPIO function can be used on VLL1,VLL2,Vcap1 and Vcap2 pins) kSLCD_LowLoadOrIntermediateClkSrc - low load (LCD glass capacitance 2000pF or lower. LCD or GPIO function can be used on VLL1,VLL2,Vcap1 and Vcap2 pins) kSLCD_HighLoadOrIntermediateClkSrc - high load (LCD glass capacitance 8000pF or lower. LCD or GPIO function can be used on Vcap1 and Vcap2 pins) kSLCD_HighLoadOrSlowestClkSrc - high load (LCD glass capacitance 8000pF or lower LCD or GPIO function can be used on Vcap1 and Vcap2 pins) Adjust clock for charge pump if charge pump is enabled: kSLCD_LowLoadOrFastestClkSrc - Fasten clock source (LCD glass capacitance 8000pF or 4000pF or lower if Fast Frame Rate is set) kSLCD_LowLoadOrIntermediateClkSrc - Intermediate clock source (LCD glass capacitance 4000pF or 2000pF or lower if Fast Frame Rate is set) kSLCD_HighLoadOrIntermediateClkSrc - Intermediate clock source (LCD glass capacitance 2000pF or 1000pF or lower if Fast Frame Rate is set) kSLCD_HighLoadOrSlowestClkSrc - slowest clock source (LCD glass capacitance 1000pF or 500pF or lower if Fast Frame Rate is set)

Values:

enumerator kSLCD_LowLoadOrFastestClkSrc: Adjust in low load or selects fastest clock.

enumerator kSLCD_LowLoadOrIntermediateClkSrc: Adjust in low load or selects intermediate clock.

enumerator kSLCD_HighLoadOrIntermediateClkSrc: Adjust in high load or selects intermediate clock.

enumerator kSLCD_HighLoadOrSlowestClkSrc: Adjust in high load or selects slowest clock.

enum _slcd_clock_src

SLCD clock source.

Values:

enumerator kSLCD_DefaultClk: Select default clock ERCLK32K.

enumerator kSLCD_AlternateClk1: Select alternate clock source 1 : MCGIRCLK.

enumerator kSLCD_AlternateClk2: Select alternate clock source 2 : OSCERCLK.

enum _slcd_alt_clock_div

SLCD alternate clock divider.

Values:

enumerator kSLCD_AltClkDivFactor1: No divide for alternate clock.

enumerator kSLCD_AltClkDivFactor64: Divide alternate clock with factor 64.

enumerator kSLCD_AltClkDivFactor256: Divide alternate clock with factor 256.

enumerator kSLCD_AltClkDivFactor512: Divide alternate clock with factor 512.

enum _slcd_clock_prescaler

SLCD clock prescaler to generate frame frequency.

Values:

enumerator kSLCD_ClkPrescaler00: Prescaler 0.

enumerator kSLCD_ClkPrescaler01: Prescaler 1.

enumerator kSLCD_ClkPrescaler02: Prescaler 2.

enumerator kSLCD_ClkPrescaler03: Prescaler 3.

enumerator kSLCD_ClkPrescaler04: Prescaler 4.

enumerator kSLCD_ClkPrescaler05: Prescaler 5.

enumerator kSLCD_ClkPrescaler06: Prescaler 6.

enumerator kSLCD_ClkPrescaler07: Prescaler 7.

enum _slcd_duty_cycle

SLCD duty cycle.

Values:

enumerator kSLCD_1Div1DutyCycle: LCD use 1 BP 1/1 duty cycle.

enumerator kSLCD_1Div2DutyCycle: LCD use 2 BP 1/2 duty cycle.

enumerator kSLCD_1Div3DutyCycle: LCD use 3 BP 1/3 duty cycle.

enumerator kSLCD_1Div4DutyCycle: LCD use 4 BP 1/4 duty cycle.

enumerator kSLCD_1Div5DutyCycle: LCD use 5 BP 1/5 duty cycle.

enumerator kSLCD_1Div6DutyCycle: LCD use 6 BP 1/6 duty cycle.

enumerator kSLCD_1Div7DutyCycle: LCD use 7 BP 1/7 duty cycle.

enumerator kSLCD_1Div8DutyCycle: LCD use 8 BP 1/8 duty cycle.

enum _slcd_phase_type

SLCD segment phase type.

Values:

enumerator kSLCD_NoPhaseActivate: LCD wareform no phase activates.

enumerator kSLCD_PhaseAActivate: LCD waveform phase A activates.

enumerator kSLCD_PhaseBActivate: LCD waveform phase B activates.

enumerator kSLCD_PhaseCActivate: LCD waveform phase C activates.

enumerator kSLCD_PhaseDActivate: LCD waveform phase D activates.

enumerator kSLCD_PhaseEActivate: LCD waveform phase E activates.

enumerator kSLCD_PhaseFActivate: LCD waveform phase F activates.

enumerator kSLCD_PhaseGActivate: LCD waveform phase G activates.

enumerator kSLCD_PhaseHActivate: LCD waveform phase H activates.

enum _slcd_phase_index

SLCD segment phase bit index.

Values:

enumerator kSLCD_PhaseAIndex: LCD phase A bit index.

enumerator kSLCD_PhaseBIndex: LCD phase B bit index.

enumerator kSLCD_PhaseCIndex: LCD phase C bit index.

enumerator kSLCD_PhaseDIndex: LCD phase D bit index.

enumerator kSLCD_PhaseEIndex: LCD phase E bit index.

enumerator kSLCD_PhaseFIndex: LCD phase F bit index.

enumerator kSLCD_PhaseGIndex: LCD phase G bit index.

enumerator kSLCD_PhaseHIndex: LCD phase H bit index.

enum _slcd_display_mode

SLCD display mode.

Values:

enumerator kSLCD_NormalMode: LCD Normal display mode.

enumerator kSLCD_AlternateMode: LCD Alternate display mode. For four back planes or less.

enumerator kSLCD_BlankMode: LCD Blank display mode.

enum _slcd_blink_mode

SLCD blink mode.

Values:

enumerator kSLCD_BlankDisplayBlink: Display blank during the blink period.

enumerator kSLCD_AltDisplayBlink: Display alternate display during the blink period if duty cycle is lower than 5.

enum _slcd_blink_rate

SLCD blink rate.

Values:

enumerator kSLCD_BlinkRate00: SLCD blink rate is LCD clock/((2^12)).

enumerator kSLCD_BlinkRate01: SLCD blink rate is LCD clock/((2^13)).

enumerator kSLCD_BlinkRate02: SLCD blink rate is LCD clock/((2^14)).

enumerator kSLCD_BlinkRate03: SLCD blink rate is LCD clock/((2^15)).

enumerator kSLCD_BlinkRate04: SLCD blink rate is LCD clock/((2^16)).

enumerator kSLCD_BlinkRate05: SLCD blink rate is LCD clock/((2^17)).

enumerator kSLCD_BlinkRate06: SLCD blink rate is LCD clock/((2^18)).

enumerator kSLCD_BlinkRate07: SLCD blink rate is LCD clock/((2^19)).

enum _slcd_fault_detect_clock_prescaler

SLCD fault detect clock prescaler.

Values:

enumerator kSLCD_FaultSampleFreqDivider1: Fault detect sample clock frequency is 1/1 bus clock.

enumerator kSLCD_FaultSampleFreqDivider2: Fault detect sample clock frequency is 1/2 bus clock.

enumerator kSLCD_FaultSampleFreqDivider4: Fault detect sample clock frequency is 1/4 bus clock.

enumerator kSLCD_FaultSampleFreqDivider8: Fault detect sample clock frequency is 1/8 bus clock.

enumerator kSLCD_FaultSampleFreqDivider16: Fault detect sample clock frequency is 1/16 bus clock.

enumerator kSLCD_FaultSampleFreqDivider32: Fault detect sample clock frequency is 1/32 bus clock.

enumerator kSLCD_FaultSampleFreqDivider64: Fault detect sample clock frequency is 1/64 bus clock.

enumerator kSLCD_FaultSampleFreqDivider128: Fault detect sample clock frequency is 1/128 bus clock.

enum _slcd_fault_detect_sample_window_width

SLCD fault detect sample window width.

Values:

enumerator kSLCD_FaultDetectWindowWidth4SampleClk: Sample window width is 4 sample clock cycles.

enumerator kSLCD_FaultDetectWindowWidth8SampleClk: Sample window width is 8 sample clock cycles.

enumerator kSLCD_FaultDetectWindowWidth16SampleClk: Sample window width is 16 sample clock cycles.

enumerator kSLCD_FaultDetectWindowWidth32SampleClk: Sample window width is 32 sample clock cycles.

enumerator kSLCD_FaultDetectWindowWidth64SampleClk: Sample window width is 64 sample clock cycles.

enumerator kSLCD_FaultDetectWindowWidth128SampleClk: Sample window width is 128 sample clock cycles.

enumerator kSLCD_FaultDetectWindowWidth256SampleClk: Sample window width is 256 sample clock cycles.

enumerator kSLCD_FaultDetectWindowWidth512SampleClk: Sample window width is 512 sample clock cycles.

enum _slcd_interrupt_enable

SLCD interrupt source.

Values:

enumerator kSLCD_FaultDetectCompleteInterrupt: SLCD fault detection complete interrupt source.

enumerator kSLCD_FrameFreqInterrupt: SLCD frame frequency interrupt source. Not available in all low-power modes.

enum _slcd_lowpower_behavior

SLCD behavior in low power mode.

Values:

enumerator kSLCD_EnabledInWaitStop: SLCD works in wait and stop mode.

enumerator kSLCD_EnabledInWaitOnly: SLCD works in wait mode and is disabled in stop mode.

enumerator kSLCD_EnabledInStopOnly: SLCD works in stop mode and is disabled in wait mode.

enumerator kSLCD_DisabledInWaitStop: SLCD is disabled in stop mode and wait mode.

typedef enum _slcd_power_supply_option slcd_power_supply_option_t: SLCD power supply option.

typedef enum _slcd_regulated_voltage_trim slcd_regulated_voltage_trim_t: SLCD regulated voltage trim parameter, be used to meet the desired contrast.

typedef enum _slcd_load_adjust slcd_load_adjust_t: SLCD load adjust to handle different LCD glass capacitance or configure the LCD charge pump clock source. Adjust the LCD glass capacitance if resistor bias network is enabled: kSLCD_LowLoadOrFastestClkSrc - Low load (LCD glass capacitance 2000pF or lower. LCD or GPIO function can be used on VLL1,VLL2,Vcap1 and Vcap2 pins) kSLCD_LowLoadOrIntermediateClkSrc - low load (LCD glass capacitance 2000pF or lower. LCD or GPIO function can be used on VLL1,VLL2,Vcap1 and Vcap2 pins) kSLCD_HighLoadOrIntermediateClkSrc - high load (LCD glass capacitance 8000pF or lower. LCD or GPIO function can be used on Vcap1 and Vcap2 pins) kSLCD_HighLoadOrSlowestClkSrc - high load (LCD glass capacitance 8000pF or lower LCD or GPIO function can be used on Vcap1 and Vcap2 pins) Adjust clock for charge pump if charge pump is enabled: kSLCD_LowLoadOrFastestClkSrc - Fasten clock source (LCD glass capacitance 8000pF or 4000pF or lower if Fast Frame Rate is set) kSLCD_LowLoadOrIntermediateClkSrc - Intermediate clock source (LCD glass capacitance 4000pF or 2000pF or lower if Fast Frame Rate is set) kSLCD_HighLoadOrIntermediateClkSrc - Intermediate clock source (LCD glass capacitance 2000pF or 1000pF or lower if Fast Frame Rate is set) kSLCD_HighLoadOrSlowestClkSrc - slowest clock source (LCD glass capacitance 1000pF or 500pF or lower if Fast Frame Rate is set)

typedef enum _slcd_clock_src slcd_clock_src_t: SLCD clock source.

typedef enum _slcd_alt_clock_div slcd_alt_clock_div_t: SLCD alternate clock divider.

typedef enum _slcd_clock_prescaler slcd_clock_prescaler_t: SLCD clock prescaler to generate frame frequency.

typedef enum _slcd_duty_cycle slcd_duty_cycle_t: SLCD duty cycle.

typedef enum _slcd_phase_type slcd_phase_type_t: SLCD segment phase type.

typedef enum _slcd_phase_index slcd_phase_index_t: SLCD segment phase bit index.

typedef enum _slcd_display_mode slcd_display_mode_t: SLCD display mode.

typedef enum _slcd_blink_mode slcd_blink_mode_t: SLCD blink mode.

typedef enum _slcd_blink_rate slcd_blink_rate_t: SLCD blink rate.

typedef enum _slcd_fault_detect_clock_prescaler slcd_fault_detect_clock_prescaler_t: SLCD fault detect clock prescaler.

typedef enum _slcd_fault_detect_sample_window_width slcd_fault_detect_sample_window_width_t: SLCD fault detect sample window width.

typedef enum _slcd_interrupt_enable slcd_interrupt_enable_t: SLCD interrupt source.

typedef enum _slcd_lowpower_behavior slcd_lowpower_behavior: SLCD behavior in low power mode.

typedef struct _slcd_fault_detect_config slcd_fault_detect_config_t: SLCD fault frame detection configuration structure.

typedef struct _slcd_clock_config slcd_clock_config_t: SLCD clock configuration structure.

typedef struct _slcd_config slcd_config_t: SLCD configuration structure.

struct _slcd_fault_detect_config

#include <fsl_slcd.h>

SLCD fault frame detection configuration structure.

Public Members

bool faultDetectIntEnable: Fault frame detection interrupt enable flag.

bool faultDetectBackPlaneEnable: True means the pin id fault detected is back plane otherwise front plane.

uint8_t faultDetectPinIndex: Fault detected pin id from 0 to 63.

slcd_fault_detect_clock_prescaler_t faultPrescaler: Fault detect clock prescaler.

slcd_fault_detect_sample_window_width_t width: Fault detect sample window width.

struct _slcd_clock_config

#include <fsl_slcd.h>

SLCD clock configuration structure.

Public Members

slcd_clock_src_t clkSource: Clock source. “slcd_clock_src_t” is recommended to be used. The SLCD is optimized to operate using a 32.768kHz clock input.

slcd_alt_clock_div_t altClkDivider: The divider to divide the alternate clock used for alternate clock source.

slcd_clock_prescaler_t clkPrescaler: Clock prescaler.

bool fastFrameRateEnable: Fast frame rate enable flag.

struct _slcd_config

#include <fsl_slcd.h>

SLCD configuration structure.

Public Members

slcd_power_supply_option_t powerSupply: Power supply option.

slcd_regulated_voltage_trim_t voltageTrim: Regulated voltage trim used for the internal regulator VIREG to adjust to facilitate contrast control.

slcd_clock_config_t *clkConfig: Clock configure.

slcd_display_mode_t displayMode: SLCD display mode.

slcd_load_adjust_t loadAdjust: Load adjust to handle glass capacitance.

slcd_duty_cycle_t dutyCycle: Duty cycle.

slcd_lowpower_behavior lowPowerBehavior: SLCD behavior in low power mode.

bool frameFreqIntEnable: Frame frequency interrupt enable flag.

uint32_t slcdLowPinEnabled: Setting enabled SLCD pin 0 ~ pin 31. Setting bit n to 1 means enable pin n.

uint32_t slcdHighPinEnabled: Setting enabled SLCD pin 32 ~ pin 63. Setting bit n to 1 means enable pin (n + 32).

uint32_t backPlaneLowPin: Setting back plane pin 0 ~ pin 31. Setting bit n to 1 means setting pin n as back plane. It should never have the same bit setting as the frontPlane Pin.

uint32_t backPlaneHighPin: Setting back plane pin 32 ~ pin 63. Setting bit n to 1 means setting pin (n + 32) as back plane. It should never have the same bit setting as the frontPlane Pin.

slcd_fault_detect_config_t *faultConfig: Fault frame detection configure. If not requirement, set to NULL.

Smartcard

FSL_SMARTCARD_DRIVER_VERSION: Smart card driver version 2.3.0.

Smart card Error codes.

Values:

enumerator kStatus_SMARTCARD_Success: Transfer ends successfully

enumerator kStatus_SMARTCARD_TxBusy: Transmit in progress

enumerator kStatus_SMARTCARD_RxBusy: Receiving in progress

enumerator kStatus_SMARTCARD_NoTransferInProgress: No transfer in progress

enumerator kStatus_SMARTCARD_Timeout: Transfer ends with time-out

enumerator kStatus_SMARTCARD_Initialized: Smart card driver is already initialized

enumerator kStatus_SMARTCARD_PhyInitialized: Smart card PHY drive is already initialized

enumerator kStatus_SMARTCARD_CardNotActivated: Smart card is not activated

enumerator kStatus_SMARTCARD_InvalidInput: Function called with invalid input arguments

enumerator kStatus_SMARTCARD_OtherError: Some other error occur

enum _smartcard_control

Control codes for the Smart card protocol timers and misc.

Values:

enumerator kSMARTCARD_EnableADT

enumerator kSMARTCARD_DisableADT

enumerator kSMARTCARD_EnableGTV

enumerator kSMARTCARD_DisableGTV

enumerator kSMARTCARD_ResetWWT

enumerator kSMARTCARD_EnableWWT

enumerator kSMARTCARD_DisableWWT

enumerator kSMARTCARD_ResetCWT

enumerator kSMARTCARD_EnableCWT

enumerator kSMARTCARD_DisableCWT

enumerator kSMARTCARD_ResetBWT

enumerator kSMARTCARD_EnableBWT

enumerator kSMARTCARD_DisableBWT

enumerator kSMARTCARD_EnableInitDetect

enumerator kSMARTCARD_EnableAnack

enumerator kSMARTCARD_DisableAnack

enumerator kSMARTCARD_ConfigureBaudrate

enumerator kSMARTCARD_SetupATRMode

enumerator kSMARTCARD_SetupT0Mode

enumerator kSMARTCARD_SetupT1Mode

enumerator kSMARTCARD_EnableReceiverMode

enumerator kSMARTCARD_DisableReceiverMode

enumerator kSMARTCARD_EnableTransmitterMode

enumerator kSMARTCARD_DisableTransmitterMode

enumerator kSMARTCARD_ResetWaitTimeMultiplier

enum _smartcard_card_voltage_class

Defines Smart card interface voltage class values.

Values:

enumerator kSMARTCARD_VoltageClassUnknown

enumerator kSMARTCARD_VoltageClassA5_0V

enumerator kSMARTCARD_VoltageClassB3_3V

enumerator kSMARTCARD_VoltageClassC1_8V

enum _smartcard_transfer_state

Defines Smart card I/O transfer states.

Values:

enumerator kSMARTCARD_IdleState

enumerator kSMARTCARD_WaitingForTSState

enumerator kSMARTCARD_InvalidTSDetecetedState

enumerator kSMARTCARD_ReceivingState

enumerator kSMARTCARD_TransmittingState

enum _smartcard_reset_type

Defines Smart card reset types.

Values:

enumerator kSMARTCARD_ColdReset

enumerator kSMARTCARD_WarmReset

enumerator kSMARTCARD_NoColdReset

enumerator kSMARTCARD_NoWarmReset

enum _smartcard_transport_type

Defines Smart card transport protocol types.

Values:

enumerator kSMARTCARD_T0Transport

enumerator kSMARTCARD_T1Transport

enum _smartcard_parity_type

Defines Smart card data parity types.

Values:

enumerator kSMARTCARD_EvenParity

enumerator kSMARTCARD_OddParity

enum _smartcard_card_convention

Defines data Convention format.

Values:

enumerator kSMARTCARD_DirectConvention

enumerator kSMARTCARD_InverseConvention

enum _smartcard_interface_control

Defines Smart card interface IC control types.

Values:

enumerator kSMARTCARD_InterfaceSetVcc

enumerator kSMARTCARD_InterfaceSetClockToResetDelay

enumerator kSMARTCARD_InterfaceReadStatus

enum _smartcard_direction

Defines transfer direction.

Values:

enumerator kSMARTCARD_Receive

enumerator kSMARTCARD_Transmit

typedef enum _smartcard_control smartcard_control_t: Control codes for the Smart card protocol timers and misc.

typedef enum _smartcard_card_voltage_class smartcard_card_voltage_class_t: Defines Smart card interface voltage class values.

typedef enum _smartcard_transfer_state smartcard_transfer_state_t: Defines Smart card I/O transfer states.

typedef enum _smartcard_reset_type smartcard_reset_type_t: Defines Smart card reset types.

typedef enum _smartcard_transport_type smartcard_transport_type_t: Defines Smart card transport protocol types.

typedef enum _smartcard_parity_type smartcard_parity_type_t: Defines Smart card data parity types.

typedef enum _smartcard_card_convention smartcard_card_convention_t: Defines data Convention format.

typedef enum _smartcard_interface_control smartcard_interface_control_t: Defines Smart card interface IC control types.

typedef enum _smartcard_direction smartcard_direction_t: Defines transfer direction.

typedef void (*smartcard_interface_callback_t)(void *smartcardContext, void *param): Smart card interface interrupt callback function type.

typedef void (*smartcard_transfer_callback_t)(void *smartcardContext, void *param): Smart card transfer interrupt callback function type.

typedef void (*smartcard_time_delay_t)(uint32_t us): Time Delay function used to passive waiting using RTOS [us].

typedef struct _smartcard_card_params smartcard_card_params_t: Defines card-specific parameters for Smart card driver.

typedef struct _smartcard_timers_state smartcard_timers_state_t: Smart card defines the state of the EMV timers in the Smart card driver.

typedef struct _smartcard_interface_config smartcard_interface_config_t: Defines user specified configuration of Smart card interface.

typedef struct _smartcard_xfer smartcard_xfer_t: Defines user transfer structure used to initialize transfer.

typedef struct _smartcard_context smartcard_context_t: Runtime state of the Smart card driver.

SMARTCARD_INIT_DELAY_CLOCK_CYCLES: Smart card global define which specify number of clock cycles until initial ‘TS’ character has to be received.

SMARTCARD_EMV_ATR_DURATION_ETU: Smart card global define which specify number of clock cycles during which ATR string has to be received.

SMARTCARD_TS_DIRECT_CONVENTION: Smart card specification initial TS character definition of direct convention.

SMARTCARD_TS_INVERSE_CONVENTION: Smart card specification initial TS character definition of inverse convention.

struct _smartcard_card_params

#include <fsl_smartcard.h>

Defines card-specific parameters for Smart card driver.

Public Members

uint16_t Fi: 4 bits Fi - clock rate conversion integer

uint8_t fMax: Maximum Smart card frequency in MHz

uint8_t WI: 8 bits WI - work wait time integer

uint8_t Di: 4 bits DI - baud rate divisor

uint8_t BWI: 4 bits BWI - block wait time integer

uint8_t CWI: 4 bits CWI - character wait time integer

uint8_t BGI: 4 bits BGI - block guard time integer

uint8_t GTN: 8 bits GTN - extended guard time integer

uint8_t IFSC: Indicates IFSC value of the card

uint8_t modeNegotiable: Indicates if the card acts in negotiable or a specific mode.

uint8_t currentD: 4 bits DI - current baud rate divisor

uint8_t status: Indicates smart card status

bool t0Indicated: Indicates ff T=0 indicated in TD1 byte

bool t1Indicated: Indicates if T=1 indicated in TD2 byte

bool atrComplete: Indicates whether the ATR received from the card was complete or not

bool atrValid: Indicates whether the ATR received from the card was valid or not

bool present: Indicates if a smart card is present

bool active: Indicates if the smart card is activated

bool faulty: Indicates whether smart card/interface is faulty

smartcard_card_convention_t convention: Card convention, kSMARTCARD_DirectConvention for direct convention, kSMARTCARD_InverseConvention for inverse convention

struct _smartcard_timers_state

#include <fsl_smartcard.h>

Smart card defines the state of the EMV timers in the Smart card driver.

Public Members

volatile bool adtExpired: Indicates whether ADT timer expired

volatile bool wwtExpired: Indicates whether WWT timer expired

volatile bool cwtExpired: Indicates whether CWT timer expired

volatile bool bwtExpired: Indicates whether BWT timer expired

volatile bool initCharTimerExpired: Indicates whether reception timer for initialization character (TS) after the RST has expired

struct _smartcard_interface_config

#include <fsl_smartcard.h>

Defines user specified configuration of Smart card interface.

Public Members

uint32_t smartCardClock: Smart card interface clock [Hz]

uint32_t clockToResetDelay: Indicates clock to RST apply delay [smart card clock cycles]

uint8_t clockModule: Smart card clock module number

uint8_t clockModuleChannel: Smart card clock module channel number

uint8_t clockModuleSourceClock: Smart card clock module source clock [e.g., BusClk]

smartcard_card_voltage_class_t vcc: Smart card voltage class

uint8_t controlPort: Smart card PHY control port instance

uint8_t controlPin: Smart card PHY control pin instance

uint8_t irqPort: Smart card PHY Interrupt port instance

uint8_t irqPin: Smart card PHY Interrupt pin instance

uint8_t resetPort: Smart card reset port instance

uint8_t resetPin: Smart card reset pin instance

uint8_t vsel0Port: Smart card PHY Vsel0 control port instance

uint8_t vsel0Pin: Smart card PHY Vsel0 control pin instance

uint8_t vsel1Port: Smart card PHY Vsel1 control port instance

uint8_t vsel1Pin: Smart card PHY Vsel1 control pin instance

uint8_t dataPort: Smart card PHY data port instance

uint8_t dataPin: Smart card PHY data pin instance

uint8_t dataPinMux: Smart card PHY data pin mux option

uint8_t tsTimerId: Numerical identifier of the External HW timer for Initial character detection

struct _smartcard_xfer

#include <fsl_smartcard.h>

Defines user transfer structure used to initialize transfer.

Public Members

smartcard_direction_t direction: Direction of communication. (RX/TX)

uint8_t *buff: The buffer of data.

size_t size: The number of transferred units.

struct _smartcard_context

#include <fsl_smartcard.h>

Runtime state of the Smart card driver.

Public Members

void *base: Smart card module base address

smartcard_direction_t direction: Direction of communication. (RX/TX)

uint8_t *xBuff: The buffer of data being transferred.

volatile size_t xSize: The number of bytes to be transferred.

volatile bool xIsBusy: True if there is an active transfer.

uint8_t txFifoEntryCount: Number of data word entries in transmit FIFO.

uint8_t rxFifoThreshold: The max value of the receiver FIFO threshold.

smartcard_interface_callback_t interfaceCallback: Callback to invoke after interface IC raised interrupt.

smartcard_transfer_callback_t transferCallback: Callback to invoke after transfer event occur.

void *interfaceCallbackParam: Interface callback parameter pointer.

void *transferCallbackParam: Transfer callback parameter pointer.

smartcard_time_delay_t timeDelay: Function which handles time delay defined by user or RTOS.

smartcard_reset_type_t resetType: Indicates whether a Cold reset or Warm reset was requested.

smartcard_transport_type_t tType: Indicates current transfer protocol (T0 or T1)

volatile smartcard_transfer_state_t transferState: Indicates the current transfer state

smartcard_timers_state_t timersState: Indicates the state of different protocol timers used in driver

smartcard_card_params_t cardParams: Smart card parameters(ATR and current) and interface slots states(ATR and current)

uint8_t IFSD: Indicates the terminal IFSD

smartcard_parity_type_t parity: Indicates current parity even/odd

volatile bool rxtCrossed: Indicates whether RXT thresholds has been crossed

volatile bool txtCrossed: Indicates whether TXT thresholds has been crossed

volatile bool wtxRequested: Indicates whether WTX has been requested or not

volatile bool parityError: Indicates whether a parity error has been detected

uint8_t statusBytes[2]: Used to store Status bytes SW1, SW2 of the last executed card command response

smartcard_interface_config_t interfaceConfig: Smart card interface configuration structure

bool abortTransfer: Used to abort transfer.

Smart Card PHY Driver

void SMARTCARD_PHY_GetDefaultConfig(smartcard_interface_config_t *config)

Fills in the configuration structure with default values.

Parameters:

config – The Smart card user configuration structure which contains configuration structure of type smartcard_interface_config_t. Function fill in members: clockToResetDelay = 42000, vcc = kSmartcardVoltageClassB3_3V, with default values.

status_t SMARTCARD_PHY_Init(void *base, smartcard_interface_config_t const *config, uint32_t srcClock_Hz)

Initializes a Smart card interface instance.

Parameters:

base – The Smart card peripheral base address.
config – The user configuration structure of type smartcard_interface_config_t. Call the function SMARTCARD_PHY_GetDefaultConfig() to fill the configuration structure.
srcClock_Hz – Smart card clock generation module source clock.

Return values:

kStatus_SMARTCARD_Success – or kStatus_SMARTCARD_OtherError in case of error.

void SMARTCARD_PHY_Deinit(void *base, smartcard_interface_config_t const *config)

De-initializes a Smart card interface, stops the Smart card clock, and disables the VCC.

Parameters:

base – The Smart card peripheral module base address.
config – The user configuration structure of type smartcard_interface_config_t.

status_t SMARTCARD_PHY_Activate(void *base, smartcard_context_t *context, smartcard_reset_type_t resetType)

Activates the Smart card IC.

Parameters:

base – The Smart card peripheral module base address.
context – A pointer to a Smart card driver context structure.
resetType – type of reset to be performed, possible values = kSmartcardColdReset, kSmartcardWarmReset

Return values:

kStatus_SMARTCARD_Success – or kStatus_SMARTCARD_OtherError in case of error.

status_t SMARTCARD_PHY_Deactivate(void *base, smartcard_context_t *context)

De-activates the Smart card IC.

Parameters:

base – The Smart card peripheral module base address.
context – A pointer to a Smart card driver context structure.

Return values:

kStatus_SMARTCARD_Success – or kStatus_SMARTCARD_OtherError in case of error.

status_t SMARTCARD_PHY_Control(void *base, smartcard_context_t *context, smartcard_interface_control_t control, uint32_t param)

Controls the Smart card interface IC.

Parameters:

base – The Smart card peripheral module base address.
context – A pointer to a Smart card driver context structure.
control – A interface command type.
param – Integer value specific to control type

Return values:

kStatus_SMARTCARD_Success – or kStatus_SMARTCARD_OtherError in case of error.

SMARTCARD_ATR_DURATION_ADJUSTMENT: Smart card definition which specifies the adjustment number of clock cycles during which an ATR string has to be received.

SMARTCARD_INIT_DELAY_CLOCK_CYCLES_ADJUSTMENT: Smart card definition which specifies the adjustment number of clock cycles until an initial ‘TS’ character has to be received.

Smart Card PHY GPIO Driver

Smart Card UART Driver

void SMARTCARD_UART_GetDefaultConfig(smartcard_card_params_t *cardParams)

Fills in the smartcard_card_params structure with default values according to the EMV 4.3 specification.

Parameters:

cardParams – The configuration structure of type smartcard_interface_config_t. Function fill in members: Fi = 372; Di = 1; currentD = 1; WI = 0x0A; GTN = 0x00; with default values.

status_t SMARTCARD_UART_Init(UART_Type *base, smartcard_context_t *context, uint32_t srcClock_Hz)

Initializes a UART peripheral for the Smart card/ISO-7816 operation.

This function un-gates the UART clock, initializes the module to EMV default settings, configures the IRQ, enables the module-level interrupt to the core, and initializes the driver context.

Parameters:

base – The UART peripheral base address.
context – A pointer to a smart card driver context structure.
srcClock_Hz – Smart card clock generation module source clock.

Returns:

An error code or kStatus_SMARTCARD_Success.

void SMARTCARD_UART_Deinit(UART_Type *base)

This function disables the UART interrupts, disables the transmitter and receiver, and flushes the FIFOs (for modules that support FIFOs) and gates UART clock in SIM.

Parameters:

base – The UART peripheral base address.

int32_t SMARTCARD_UART_GetTransferRemainingBytes(UART_Type *base, smartcard_context_t *context)

Returns whether the previous UART transfer has finished.

When performing an async transfer, call this function to ascertain the context of the current transfer: in progress (or busy) or complete (success). If the transfer is still in progress, the user can obtain the number of words that have not been transferred by reading xSize of smart card context structure.

Parameters:

base – The UART peripheral base address.
context – A pointer to a Smart card driver context structure.

Returns:

The number of bytes not transferred.

status_t SMARTCARD_UART_AbortTransfer(UART_Type *base, smartcard_context_t *context)

Terminates an asynchronous UART transfer early.

During an async UART transfer, the user can terminate the transfer early if the transfer is still in progress.

Parameters:

base – The UART peripheral base address.
context – A pointer to a Smart card driver context structure.

Return values:

kStatus_SMARTCARD_Success – The transfer abort was successful.
kStatus_SMARTCARD_NoTransmitInProgress – No transmission is currently in progress.

status_t SMARTCARD_UART_TransferNonBlocking(UART_Type *base, smartcard_context_t *context, smartcard_xfer_t *xfer)

Transfers data using interrupts.

A non-blocking (also known as asynchronous) function means that the function returns immediately after initiating the transfer function. The application has to get the transfer status to see when the transfer is complete. In other words, after calling non-blocking (asynchronous) transfer function, the application must get the transfer status to check if transmit is completed or not.

Parameters:

base – The UART peripheral base address.
context – A pointer to a Smart card driver context structure.
xfer – A pointer to Smart card transfer structure where the linked buffers and sizes are stored.

Returns:

An error code or kStatus_SMARTCARD_Success.

status_t SMARTCARD_UART_Control(UART_Type *base, smartcard_context_t *context, smartcard_control_t control, uint32_t param)

Controls the UART module per different user requests.

return An kStatus_SMARTCARD_OtherError in case of error return kStatus_SMARTCARD_Success in success

Parameters:

base – The UART peripheral base address.
context – A pointer to a smart card driver context structure.
control – Smart card command type.
param – Integer value specific to a control command.

void SMARTCARD_UART_IRQHandler(UART_Type *base, smartcard_context_t *context)

Interrupt handler for UART.

This handler uses the buffers stored in the smartcard_context_t structures to transfer data. The Smart card driver requires this function to call when the UART interrupt occurs.

Parameters:

base – The UART peripheral base address.
context – A pointer to a Smart card driver context structure.

void SMARTCARD_UART_ErrIRQHandler(UART_Type *base, smartcard_context_t *context)

Error interrupt handler for UART.

This function handles error conditions during a transfer.

Parameters:

base – The UART peripheral base address.
context – A pointer to a Smart card driver context structure.

void SMARTCARD_UART_TSExpiryCallback(UART_Type *base, smartcard_context_t *context)

Handles initial TS character timer time-out event.

Parameters:

base – The UART peripheral base address.
context – A pointer to a Smart card driver context structure.

void smartcard_uart_TimerStart(uint8_t channel, uint32_t time)

Initializes timer specific channel with input period, enable channel interrupt and start counter.

Parameters:

channel – The timer channel.
time – The time period.

SMARTCARD_EMV_RX_NACK_THRESHOLD: EMV RX NACK interrupt generation threshold.

SMARTCARD_EMV_TX_NACK_THRESHOLD: EMV TX NACK interrupt generation threshold.

SMARTCARD_EMV_RX_TO_TX_GUARD_TIME_T0: EMV TX & RX GUART TIME default value.

SBR_CAL_ADJUST_D1_T0

BRFA_CAL_ADJUST_D1_T0

SBR_CAL_ADJUST_D2_T0

BRFA_CAL_ADJUST_D2_T0

SBR_CAL_ADJUST_D4_T0

BRFA_CAL_ADJUST_D4_T0

SBR_CAL_ADJUST_D1_T1

BRFA_CAL_ADJUST_D1_T1

SBR_CAL_ADJUST_D2_T1

BRFA_CAL_ADJUST_D2_T1

SBR_CAL_ADJUST_D4_T1

BRFA_CAL_ADJUST_D4_T1

SMC: System Mode Controller Driver

static inline void SMC_GetVersionId(SMC_Type *base, smc_version_id_t *versionId)

Gets the SMC version ID.

This function gets the SMC version ID, including major version number, minor version number, and feature specification number.

Parameters:

base – SMC peripheral base address.
versionId – Pointer to the version ID structure.

void SMC_GetParam(SMC_Type *base, smc_param_t *param)

Gets the SMC parameter.

This function gets the SMC parameter including the enabled power mdoes.

Parameters:

base – SMC peripheral base address.
param – Pointer to the SMC param structure.

static inline void SMC_SetPowerModeProtection(SMC_Type *base, uint8_t allowedModes)

Configures all power mode protection settings.

This function configures the power mode protection settings for supported power modes in the specified chip family. The available power modes are defined in the smc_power_mode_protection_t. This should be done at an early system level initialization stage. See the reference manual for details. This register can only write once after the power reset.

The allowed modes are passed as bit map. For example, to allow LLS and VLLS, use SMC_SetPowerModeProtection(kSMC_AllowPowerModeVlls | kSMC_AllowPowerModeVlps). To allow all modes, use SMC_SetPowerModeProtection(kSMC_AllowPowerModeAll).

Parameters:

base – SMC peripheral base address.
allowedModes – Bitmap of the allowed power modes.

static inline smc_power_state_t SMC_GetPowerModeState(SMC_Type *base)

Gets the current power mode status.

This function returns the current power mode status. After the application switches the power mode, it should always check the status to check whether it runs into the specified mode or not. The application should check this mode before switching to a different mode. The system requires that only certain modes can switch to other specific modes. See the reference manual for details and the smc_power_state_t for information about the power status.

Parameters:

base – SMC peripheral base address.

Returns:

Current power mode status.

void SMC_PreEnterStopModes(void)

Prepares to enter stop modes.

This function should be called before entering STOP/VLPS/LLS/VLLS modes.

void SMC_PostExitStopModes(void)

Recovers after wake up from stop modes.

This function should be called after wake up from STOP/VLPS/LLS/VLLS modes. It is used with SMC_PreEnterStopModes.

void SMC_PreEnterWaitModes(void)

Prepares to enter wait modes.

This function should be called before entering WAIT/VLPW modes.

void SMC_PostExitWaitModes(void)

Recovers after wake up from stop modes.

This function should be called after wake up from WAIT/VLPW modes. It is used with SMC_PreEnterWaitModes.

status_t SMC_SetPowerModeRun(SMC_Type *base)

Configures the system to RUN power mode.

Parameters:

base – SMC peripheral base address.

Returns:

SMC configuration error code.

status_t SMC_SetPowerModeHsrun(SMC_Type *base)

Configures the system to HSRUN power mode.

Parameters:

base – SMC peripheral base address.

Returns:

SMC configuration error code.

status_t SMC_SetPowerModeWait(SMC_Type *base)

Configures the system to WAIT power mode.

Parameters:

base – SMC peripheral base address.

Returns:

SMC configuration error code.

status_t SMC_SetPowerModeStop(SMC_Type *base, smc_partial_stop_option_t option)

Configures the system to Stop power mode.

Parameters:

base – SMC peripheral base address.
option – Partial Stop mode option.

Returns:

SMC configuration error code.

status_t SMC_SetPowerModeVlpr(SMC_Type *base, bool wakeupMode)

Configures the system to VLPR power mode.

Parameters:

base – SMC peripheral base address.
wakeupMode – Enter Normal Run mode if true, else stay in VLPR mode.

Returns:

SMC configuration error code.

status_t SMC_SetPowerModeVlpw(SMC_Type *base)

Configures the system to VLPW power mode.

Parameters:

base – SMC peripheral base address.

Returns:

SMC configuration error code.

status_t SMC_SetPowerModeVlps(SMC_Type *base)

Configures the system to VLPS power mode.

Parameters:

base – SMC peripheral base address.

Returns:

SMC configuration error code.

status_t SMC_SetPowerModeLls(SMC_Type *base, const smc_power_mode_lls_config_t *config)

Configures the system to LLS power mode.

Parameters:

base – SMC peripheral base address.
config – The LLS power mode configuration structure

Returns:

SMC configuration error code.

status_t SMC_SetPowerModeVlls(SMC_Type *base, const smc_power_mode_vlls_config_t *config)

Configures the system to VLLS power mode.

Parameters:

base – SMC peripheral base address.
config – The VLLS power mode configuration structure.

Returns:

SMC configuration error code.

FSL_SMC_DRIVER_VERSION: SMC driver version.

enum _smc_power_mode_protection

Power Modes Protection.

Values:

enumerator kSMC_AllowPowerModeVlls: Allow Very-low-leakage Stop Mode.

enumerator kSMC_AllowPowerModeLls: Allow Low-leakage Stop Mode.

enumerator kSMC_AllowPowerModeVlp: Allow Very-Low-power Mode.

enumerator kSMC_AllowPowerModeHsrun: Allow High-speed Run mode.

enumerator kSMC_AllowPowerModeAll: Allow all power mode.

enum _smc_power_state

Power Modes in PMSTAT.

Values:

enumerator kSMC_PowerStateRun: 0000_0001 - Current power mode is RUN

enumerator kSMC_PowerStateStop: 0000_0010 - Current power mode is STOP

enumerator kSMC_PowerStateVlpr: 0000_0100 - Current power mode is VLPR

enumerator kSMC_PowerStateVlpw: 0000_1000 - Current power mode is VLPW

enumerator kSMC_PowerStateVlps: 0001_0000 - Current power mode is VLPS

enumerator kSMC_PowerStateLls: 0010_0000 - Current power mode is LLS

enumerator kSMC_PowerStateVlls: 0100_0000 - Current power mode is VLLS

enumerator kSMC_PowerStateHsrun: 1000_0000 - Current power mode is HSRUN

enum _smc_run_mode

Run mode definition.

Values:

enumerator kSMC_RunNormal: Normal RUN mode.

enumerator kSMC_RunVlpr: Very-low-power RUN mode.

enumerator kSMC_Hsrun: High-speed Run mode (HSRUN).

enum _smc_stop_mode

Stop mode definition.

Values:

enumerator kSMC_StopNormal: Normal STOP mode.

enumerator kSMC_StopVlps: Very-low-power STOP mode.

enumerator kSMC_StopLls: Low-leakage Stop mode.

enumerator kSMC_StopVlls: Very-low-leakage Stop mode.

enum _smc_stop_submode

VLLS/LLS stop sub mode definition.

Values:

enumerator kSMC_StopSub0: Stop submode 0, for VLLS0/LLS0.

enumerator kSMC_StopSub1: Stop submode 1, for VLLS1/LLS1.

enumerator kSMC_StopSub2: Stop submode 2, for VLLS2/LLS2.

enumerator kSMC_StopSub3: Stop submode 3, for VLLS3/LLS3.

enum _smc_partial_stop_mode

Partial STOP option.

Values:

enumerator kSMC_PartialStop: STOP - Normal Stop mode

enumerator kSMC_PartialStop1: Partial Stop with both system and bus clocks disabled

enumerator kSMC_PartialStop2: Partial Stop with system clock disabled and bus clock enabled

_smc_status, SMC configuration status.

Values:

enumerator kStatus_SMC_StopAbort: Entering Stop mode is abort

typedef enum _smc_power_mode_protection smc_power_mode_protection_t: Power Modes Protection.

typedef enum _smc_power_state smc_power_state_t: Power Modes in PMSTAT.

typedef enum _smc_run_mode smc_run_mode_t: Run mode definition.

typedef enum _smc_stop_mode smc_stop_mode_t: Stop mode definition.

typedef enum _smc_stop_submode smc_stop_submode_t: VLLS/LLS stop sub mode definition.

typedef enum _smc_partial_stop_mode smc_partial_stop_option_t: Partial STOP option.

typedef struct _smc_version_id smc_version_id_t: IP version ID definition.

typedef struct _smc_param smc_param_t: IP parameter definition.

typedef struct _smc_power_mode_lls_config smc_power_mode_lls_config_t: SMC Low-Leakage Stop power mode configuration.

typedef struct _smc_power_mode_vlls_config smc_power_mode_vlls_config_t: SMC Very Low-Leakage Stop power mode configuration.

struct _smc_version_id

#include <fsl_smc.h>

IP version ID definition.

Public Members

uint16_t feature: Feature Specification Number.

uint8_t minor: Minor version number.

uint8_t major: Major version number.

struct _smc_param

#include <fsl_smc.h>

IP parameter definition.

Public Members

bool hsrunEnable: HSRUN mode enable.

bool llsEnable: LLS mode enable.

bool lls2Enable: LLS2 mode enable.

bool vlls0Enable: VLLS0 mode enable.

struct _smc_power_mode_lls_config

#include <fsl_smc.h>

SMC Low-Leakage Stop power mode configuration.

Public Members

smc_stop_submode_t subMode: Low-leakage Stop sub-mode

bool enableLpoClock: Enable LPO clock in LLS mode

struct _smc_power_mode_vlls_config

#include <fsl_smc.h>

SMC Very Low-Leakage Stop power mode configuration.

Public Members

smc_stop_submode_t subMode: Very Low-leakage Stop sub-mode

bool enablePorDetectInVlls0: Enable Power on reset detect in VLLS mode

bool enableRam2InVlls2: Enable RAM2 power in VLLS2

bool enableLpoClock: Enable LPO clock in VLLS mode

SPI: Serial Peripheral Interface Driver

SPI DMA Driver

void SPI_MasterTransferCreateHandleDMA(SPI_Type *base, spi_dma_handle_t *handle, spi_dma_callback_t callback, void *userData, dma_handle_t *txHandle, dma_handle_t *rxHandle)

Initialize the SPI master DMA handle.

This function initializes the SPI master DMA handle which can be used for other SPI master transactional APIs. Usually, for a specified SPI instance, user need only call this API once to get the initialized handle.

Parameters:

base – SPI peripheral base address.
handle – SPI handle pointer.
callback – User callback function called at the end of a transfer.
userData – User data for callback.
txHandle – DMA handle pointer for SPI Tx, the handle shall be static allocated by users.
rxHandle – DMA handle pointer for SPI Rx, the handle shall be static allocated by users.

status_t SPI_MasterTransferDMA(SPI_Type *base, spi_dma_handle_t *handle, spi_transfer_t *xfer)

Perform a non-blocking SPI transfer using DMA.

Note

This interface returned immediately after transfer initiates, users should call SPI_GetTransferStatus to poll the transfer status to check whether SPI transfer finished.

Parameters:

base – SPI peripheral base address.
handle – SPI DMA handle pointer.
xfer – Pointer to dma transfer structure.

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_InvalidArgument – Input argument is invalid.
kStatus_SPI_Busy – SPI is not idle, is running another transfer.

void SPI_MasterTransferAbortDMA(SPI_Type *base, spi_dma_handle_t *handle)

Abort a SPI transfer using DMA.

Parameters:

base – SPI peripheral base address.
handle – SPI DMA handle pointer.

status_t SPI_MasterTransferGetCountDMA(SPI_Type *base, spi_dma_handle_t *handle, size_t *count)

Get the transferred bytes for SPI slave DMA.

Parameters:

base – SPI peripheral base address.
handle – SPI DMA handle pointer.
count – Transferred bytes.

Return values:

kStatus_SPI_Success – Succeed get the transfer count.
kStatus_NoTransferInProgress – There is not a non-blocking transaction currently in progress.

static inline void SPI_SlaveTransferCreateHandleDMA(SPI_Type *base, spi_dma_handle_t *handle, spi_dma_callback_t callback, void *userData, dma_handle_t *txHandle, dma_handle_t *rxHandle)

Initialize the SPI slave DMA handle.

This function initializes the SPI slave DMA handle which can be used for other SPI master transactional APIs. Usually, for a specified SPI instance, user need only call this API once to get the initialized handle.

Parameters:

base – SPI peripheral base address.
handle – SPI handle pointer.
callback – User callback function called at the end of a transfer.
userData – User data for callback.
txHandle – DMA handle pointer for SPI Tx, the handle shall be static allocated by users.
rxHandle – DMA handle pointer for SPI Rx, the handle shall be static allocated by users.

static inline status_t SPI_SlaveTransferDMA(SPI_Type *base, spi_dma_handle_t *handle, spi_transfer_t *xfer)

Perform a non-blocking SPI transfer using DMA.

Note

This interface returned immediately after transfer initiates, users should call SPI_GetTransferStatus to poll the transfer status to check whether SPI transfer finished.

Parameters:

base – SPI peripheral base address.
handle – SPI DMA handle pointer.
xfer – Pointer to dma transfer structure.

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_InvalidArgument – Input argument is invalid.
kStatus_SPI_Busy – SPI is not idle, is running another transfer.

static inline void SPI_SlaveTransferAbortDMA(SPI_Type *base, spi_dma_handle_t *handle)

Abort a SPI transfer using DMA.

Parameters:

base – SPI peripheral base address.
handle – SPI DMA handle pointer.

static inline status_t SPI_SlaveTransferGetCountDMA(SPI_Type *base, spi_dma_handle_t *handle, size_t *count)

Get the transferred bytes for SPI slave DMA.

Parameters:

base – SPI peripheral base address.
handle – SPI DMA handle pointer.
count – Transferred bytes.

Return values:

kStatus_SPI_Success – Succeed get the transfer count.
kStatus_NoTransferInProgress – There is not a non-blocking transaction currently in progress.

FSL_SPI_DMA_DRIVER_VERSION: SPI DMA driver version.

typedef struct _spi_dma_handle spi_dma_handle_t

typedef void (*spi_dma_callback_t)(SPI_Type *base, spi_dma_handle_t *handle, status_t status, void *userData): SPI DMA callback called at the end of transfer.

struct _spi_dma_handle

#include <fsl_spi_dma.h>

SPI DMA transfer handle, users should not touch the content of the handle.

Public Members

bool txInProgress: Send transfer finished

bool rxInProgress: Receive transfer finished

dma_handle_t *txHandle: DMA handler for SPI send

dma_handle_t *rxHandle: DMA handler for SPI receive

uint8_t bytesPerFrame: Bytes in a frame for SPI transfer

spi_dma_callback_t callback: Callback for SPI DMA transfer

void *userData: User Data for SPI DMA callback

uint32_t state: Internal state of SPI DMA transfer

size_t transferSize: Bytes need to be transfer

SPI Driver

void SPI_MasterGetDefaultConfig(spi_master_config_t *config)

Sets the SPI master configuration structure to default values.

The purpose of this API is to get the configuration structure initialized for use in SPI_MasterInit(). User may use the initialized structure unchanged in SPI_MasterInit(), or modify some fields of the structure before calling SPI_MasterInit(). After calling this API, the master is ready to transfer. Example:

spi_master_config_t config;
SPI_MasterGetDefaultConfig(&config);

Parameters:

config – pointer to master config structure

void SPI_MasterInit(SPI_Type *base, const spi_master_config_t *config, uint32_t srcClock_Hz)

Initializes the SPI with master configuration.

The configuration structure can be filled by user from scratch, or be set with default values by SPI_MasterGetDefaultConfig(). After calling this API, the slave is ready to transfer. Example

spi_master_config_t config = {
.baudRate_Bps = 400000,
...
};
SPI_MasterInit(SPI0, &config);

Parameters:

base – SPI base pointer
config – pointer to master configuration structure
srcClock_Hz – Source clock frequency.

void SPI_SlaveGetDefaultConfig(spi_slave_config_t *config)

Sets the SPI slave configuration structure to default values.

The purpose of this API is to get the configuration structure initialized for use in SPI_SlaveInit(). Modify some fields of the structure before calling SPI_SlaveInit(). Example:

spi_slave_config_t config;
SPI_SlaveGetDefaultConfig(&config);

Parameters:

config – pointer to slave configuration structure

void SPI_SlaveInit(SPI_Type *base, const spi_slave_config_t *config)

Initializes the SPI with slave configuration.

The configuration structure can be filled by user from scratch or be set with default values by SPI_SlaveGetDefaultConfig(). After calling this API, the slave is ready to transfer. Example

spi_slave_config_t config = {
.polarity = kSPIClockPolarity_ActiveHigh;
.phase = kSPIClockPhase_FirstEdge;
.direction = kSPIMsbFirst;
...
};
SPI_MasterInit(SPI0, &config);

Parameters:

base – SPI base pointer
config – pointer to master configuration structure

void SPI_Deinit(SPI_Type *base)

De-initializes the SPI.

Calling this API resets the SPI module, gates the SPI clock. The SPI module can’t work unless calling the SPI_MasterInit/SPI_SlaveInit to initialize module.

Parameters:

base – SPI base pointer

static inline void SPI_Enable(SPI_Type *base, bool enable)

Enables or disables the SPI.

Parameters:

base – SPI base pointer
enable – pass true to enable module, false to disable module

uint32_t SPI_GetStatusFlags(SPI_Type *base)

Gets the status flag.

Parameters:

base – SPI base pointer

Returns:

SPI Status, use status flag to AND _spi_flags could get the related status.

static inline void SPI_ClearInterrupt(SPI_Type *base, uint8_t mask)

Clear the interrupt if enable INCTLR.

Parameters:

base – SPI base pointer
mask – Interrupt need to be cleared The parameter could be any combination of the following values:
- kSPI_RxFullAndModfInterruptEnable
- kSPI_TxEmptyInterruptEnable
- kSPI_MatchInterruptEnable
- kSPI_RxFifoNearFullInterruptEnable
- kSPI_TxFifoNearEmptyInterruptEnable

void SPI_EnableInterrupts(SPI_Type *base, uint32_t mask)

Enables the interrupt for the SPI.

Parameters:

base – SPI base pointer
mask – SPI interrupt source. The parameter can be any combination of the following values:
- kSPI_RxFullAndModfInterruptEnable
- kSPI_TxEmptyInterruptEnable
- kSPI_MatchInterruptEnable
- kSPI_RxFifoNearFullInterruptEnable
- kSPI_TxFifoNearEmptyInterruptEnable

void SPI_DisableInterrupts(SPI_Type *base, uint32_t mask)

Disables the interrupt for the SPI.

Parameters:

base – SPI base pointer
mask – SPI interrupt source. The parameter can be any combination of the following values:
- kSPI_RxFullAndModfInterruptEnable
- kSPI_TxEmptyInterruptEnable
- kSPI_MatchInterruptEnable
- kSPI_RxFifoNearFullInterruptEnable
- kSPI_TxFifoNearEmptyInterruptEnable

static inline void SPI_EnableDMA(SPI_Type *base, uint8_t mask, bool enable)

Enables the DMA source for SPI.

Parameters:

base – SPI base pointer
mask – SPI DMA source.
enable – True means enable DMA, false means disable DMA

static inline uint32_t SPI_GetDataRegisterAddress(SPI_Type *base)

Gets the SPI tx/rx data register address.

This API is used to provide a transfer address for the SPI DMA transfer configuration.

Parameters:

base – SPI base pointer

Returns:

data register address

uint32_t SPI_GetInstance(SPI_Type *base)

Get the instance for SPI module.

Parameters:

base – SPI base address

static inline void SPI_SetPinMode(SPI_Type *base, spi_pin_mode_t pinMode)

Sets the pin mode for transfer.

Parameters:

base – SPI base pointer
pinMode – pin mode for transfer AND _spi_pin_mode could get the related configuration.

void SPI_MasterSetBaudRate(SPI_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz)

Sets the baud rate for SPI transfer. This is only used in master.

Parameters:

base – SPI base pointer
baudRate_Bps – baud rate needed in Hz.
srcClock_Hz – SPI source clock frequency in Hz.

static inline void SPI_SetMatchData(SPI_Type *base, uint32_t matchData)

Sets the match data for SPI.

The match data is a hardware comparison value. When the value received in the SPI receive data buffer equals the hardware comparison value, the SPI Match Flag in the S register (S[SPMF]) sets. This can also generate an interrupt if the enable bit sets.

Parameters:

base – SPI base pointer
matchData – Match data.

void SPI_EnableFIFO(SPI_Type *base, bool enable)

Enables or disables the FIFO if there is a FIFO.

Parameters:

base – SPI base pointer
enable – True means enable FIFO, false means disable FIFO.

status_t SPI_WriteBlocking(SPI_Type *base, uint8_t *buffer, size_t size)

Sends a buffer of data bytes using a blocking method.

Note

This function blocks via polling until all bytes have been sent.

Parameters:

base – SPI base pointer
buffer – The data bytes to send
size – The number of data bytes to send

Returns:

kStatus_SPI_Timeout The transfer timed out and was aborted.

void SPI_WriteData(SPI_Type *base, uint16_t data)

Writes a data into the SPI data register.

Parameters:

base – SPI base pointer
data – needs to be write.

uint16_t SPI_ReadData(SPI_Type *base)

Gets a data from the SPI data register.

Parameters:

base – SPI base pointer

Returns:

Data in the register.

void SPI_SetDummyData(SPI_Type *base, uint8_t dummyData)

Set up the dummy data.

Parameters:

base – SPI peripheral address.
dummyData – Data to be transferred when tx buffer is NULL.

void SPI_MasterTransferCreateHandle(SPI_Type *base, spi_master_handle_t *handle, spi_master_callback_t callback, void *userData)

Initializes the SPI master handle.

This function initializes the SPI master handle which can be used for other SPI master transactional APIs. Usually, for a specified SPI instance, call this API once to get the initialized handle.

Parameters:

base – SPI peripheral base address.
handle – SPI handle pointer.
callback – Callback function.
userData – User data.

status_t SPI_MasterTransferBlocking(SPI_Type *base, spi_transfer_t *xfer)

Transfers a block of data using a polling method.

Parameters:

base – SPI base pointer
xfer – pointer to spi_xfer_config_t structure

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_InvalidArgument – Input argument is invalid.

status_t SPI_MasterTransferNonBlocking(SPI_Type *base, spi_master_handle_t *handle, spi_transfer_t *xfer)

Performs a non-blocking SPI interrupt transfer.

Note

The API immediately returns after transfer initialization is finished. Call SPI_GetStatusIRQ() to get the transfer status.

Note

If SPI transfer data frame size is 16 bits, the transfer size cannot be an odd number.

Parameters:

base – SPI peripheral base address.
handle – pointer to spi_master_handle_t structure which stores the transfer state
xfer – pointer to spi_xfer_config_t structure

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_InvalidArgument – Input argument is invalid.
kStatus_SPI_Busy – SPI is not idle, is running another transfer.

status_t SPI_MasterTransferGetCount(SPI_Type *base, spi_master_handle_t *handle, size_t *count)

Gets the bytes of the SPI interrupt transferred.

Parameters:

base – SPI peripheral base address.
handle – Pointer to SPI transfer handle, this should be a static variable.
count – Transferred bytes of SPI master.

Return values:

kStatus_SPI_Success – Succeed get the transfer count.
kStatus_NoTransferInProgress – There is not a non-blocking transaction currently in progress.

void SPI_MasterTransferAbort(SPI_Type *base, spi_master_handle_t *handle)

Aborts an SPI transfer using interrupt.

Parameters:

base – SPI peripheral base address.
handle – Pointer to SPI transfer handle, this should be a static variable.

void SPI_MasterTransferHandleIRQ(SPI_Type *base, spi_master_handle_t *handle)

Interrupts the handler for the SPI.

Parameters:

base – SPI peripheral base address.
handle – pointer to spi_master_handle_t structure which stores the transfer state.

void SPI_SlaveTransferCreateHandle(SPI_Type *base, spi_slave_handle_t *handle, spi_slave_callback_t callback, void *userData)

Initializes the SPI slave handle.

This function initializes the SPI slave handle which can be used for other SPI slave transactional APIs. Usually, for a specified SPI instance, call this API once to get the initialized handle.

Parameters:

base – SPI peripheral base address.
handle – SPI handle pointer.
callback – Callback function.
userData – User data.

status_t SPI_SlaveTransferNonBlocking(SPI_Type *base, spi_slave_handle_t *handle, spi_transfer_t *xfer)

Performs a non-blocking SPI slave interrupt transfer.

Note

The API returns immediately after the transfer initialization is finished. Call SPI_GetStatusIRQ() to get the transfer status.

Note

If SPI transfer data frame size is 16 bits, the transfer size cannot be an odd number.

Parameters:

base – SPI peripheral base address.
handle – pointer to spi_slave_handle_t structure which stores the transfer state
xfer – pointer to spi_xfer_config_t structure

Return values:

kStatus_Success – Successfully start a transfer.
kStatus_InvalidArgument – Input argument is invalid.
kStatus_SPI_Busy – SPI is not idle, is running another transfer.

static inline status_t SPI_SlaveTransferGetCount(SPI_Type *base, spi_slave_handle_t *handle, size_t *count)

Gets the bytes of the SPI interrupt transferred.

Parameters:

base – SPI peripheral base address.
handle – Pointer to SPI transfer handle, this should be a static variable.
count – Transferred bytes of SPI slave.

Return values:

kStatus_SPI_Success – Succeed get the transfer count.
kStatus_NoTransferInProgress – There is not a non-blocking transaction currently in progress.

static inline void SPI_SlaveTransferAbort(SPI_Type *base, spi_slave_handle_t *handle)

Aborts an SPI slave transfer using interrupt.

Parameters:

base – SPI peripheral base address.
handle – Pointer to SPI transfer handle, this should be a static variable.

void SPI_SlaveTransferHandleIRQ(SPI_Type *base, spi_slave_handle_t *handle)

Interrupts a handler for the SPI slave.

Parameters:

base – SPI peripheral base address.
handle – pointer to spi_slave_handle_t structure which stores the transfer state

FSL_SPI_DRIVER_VERSION: SPI driver version.

Return status for the SPI driver.

Values:

enumerator kStatus_SPI_Busy: SPI bus is busy

enumerator kStatus_SPI_Idle: SPI is idle

enumerator kStatus_SPI_Error: SPI error

enumerator kStatus_SPI_Timeout: SPI timeout polling status flags.

enum _spi_clock_polarity

SPI clock polarity configuration.

Values:

enumerator kSPI_ClockPolarityActiveHigh: Active-high SPI clock (idles low).

enumerator kSPI_ClockPolarityActiveLow: Active-low SPI clock (idles high).

enum _spi_clock_phase

SPI clock phase configuration.

Values:

enumerator kSPI_ClockPhaseFirstEdge: First edge on SPSCK occurs at the middle of the first cycle of a data transfer.

enumerator kSPI_ClockPhaseSecondEdge: First edge on SPSCK occurs at the start of the first cycle of a data transfer.

enum _spi_shift_direction

SPI data shifter direction options.

Values:

enumerator kSPI_MsbFirst: Data transfers start with most significant bit.

enumerator kSPI_LsbFirst: Data transfers start with least significant bit.

enum _spi_ss_output_mode

SPI slave select output mode options.

Values:

enumerator kSPI_SlaveSelectAsGpio: Slave select pin configured as GPIO.

enumerator kSPI_SlaveSelectFaultInput: Slave select pin configured for fault detection.

enumerator kSPI_SlaveSelectAutomaticOutput: Slave select pin configured for automatic SPI output.

enum _spi_pin_mode

SPI pin mode options.

Values:

enumerator kSPI_PinModeNormal: Pins operate in normal, single-direction mode.

enumerator kSPI_PinModeInput: Bidirectional mode. Master: MOSI pin is input; Slave: MISO pin is input.

enumerator kSPI_PinModeOutput: Bidirectional mode. Master: MOSI pin is output; Slave: MISO pin is output.

enum _spi_data_bitcount_mode

SPI data length mode options.

Values:

enumerator kSPI_8BitMode: 8-bit data transmission mode

enumerator kSPI_16BitMode: 16-bit data transmission mode

enum _spi_interrupt_enable

SPI interrupt sources.

Values:

enumerator kSPI_RxFullAndModfInterruptEnable: Receive buffer full (SPRF) and mode fault (MODF) interrupt

enumerator kSPI_TxEmptyInterruptEnable: Transmit buffer empty interrupt

enumerator kSPI_MatchInterruptEnable: Match interrupt

enumerator kSPI_RxFifoNearFullInterruptEnable: Receive FIFO nearly full interrupt

enumerator kSPI_TxFifoNearEmptyInterruptEnable: Transmit FIFO nearly empty interrupt

enum _spi_flags

SPI status flags.

Values:

enumerator kSPI_RxBufferFullFlag: Read buffer full flag

enumerator kSPI_MatchFlag: Match flag

enumerator kSPI_TxBufferEmptyFlag: Transmit buffer empty flag

enumerator kSPI_ModeFaultFlag: Mode fault flag

enumerator kSPI_RxFifoNearFullFlag: Rx FIFO near full

enumerator kSPI_TxFifoNearEmptyFlag: Tx FIFO near empty

enumerator kSPI_TxFifoFullFlag: Tx FIFO full

enumerator kSPI_RxFifoEmptyFlag: Rx FIFO empty

enumerator kSPI_TxFifoError: Tx FIFO error

enumerator kSPI_RxFifoError: Rx FIFO error

enumerator kSPI_TxOverflow: Tx FIFO Overflow

enumerator kSPI_RxOverflow: Rx FIFO Overflow

enum _spi_w1c_interrupt

SPI FIFO write-1-to-clear interrupt flags.

Values:

enumerator kSPI_RxFifoFullClearInterrupt: Receive FIFO full interrupt

enumerator kSPI_TxFifoEmptyClearInterrupt: Transmit FIFO empty interrupt

enumerator kSPI_RxNearFullClearInterrupt: Receive FIFO nearly full interrupt

enumerator kSPI_TxNearEmptyClearInterrupt: Transmit FIFO nearly empty interrupt

enum _spi_txfifo_watermark

SPI TX FIFO watermark settings.

Values:

enumerator kSPI_TxFifoOneFourthEmpty: SPI tx watermark at 1/4 FIFO size

enumerator kSPI_TxFifoOneHalfEmpty: SPI tx watermark at 1/2 FIFO size

enum _spi_rxfifo_watermark

SPI RX FIFO watermark settings.

Values:

enumerator kSPI_RxFifoThreeFourthsFull: SPI rx watermark at 3/4 FIFO size

enumerator kSPI_RxFifoOneHalfFull: SPI rx watermark at 1/2 FIFO size

enum _spi_dma_enable_t

SPI DMA source.

Values:

enumerator kSPI_TxDmaEnable: Tx DMA request source

enumerator kSPI_RxDmaEnable: Rx DMA request source

enumerator kSPI_DmaAllEnable: All DMA request source

typedef enum _spi_clock_polarity spi_clock_polarity_t: SPI clock polarity configuration.

typedef enum _spi_clock_phase spi_clock_phase_t: SPI clock phase configuration.

typedef enum _spi_shift_direction spi_shift_direction_t: SPI data shifter direction options.

typedef enum _spi_ss_output_mode spi_ss_output_mode_t: SPI slave select output mode options.

typedef enum _spi_pin_mode spi_pin_mode_t: SPI pin mode options.

typedef enum _spi_data_bitcount_mode spi_data_bitcount_mode_t: SPI data length mode options.

typedef enum _spi_w1c_interrupt spi_w1c_interrupt_t: SPI FIFO write-1-to-clear interrupt flags.

typedef enum _spi_txfifo_watermark spi_txfifo_watermark_t: SPI TX FIFO watermark settings.

typedef enum _spi_rxfifo_watermark spi_rxfifo_watermark_t: SPI RX FIFO watermark settings.

typedef struct _spi_master_config spi_master_config_t: SPI master user configure structure.

typedef struct _spi_slave_config spi_slave_config_t: SPI slave user configure structure.

typedef struct _spi_transfer spi_transfer_t: SPI transfer structure.

typedef struct _spi_master_handle spi_master_handle_t

typedef spi_master_handle_t spi_slave_handle_t: Slave handle is the same with master handle

typedef void (*spi_master_callback_t)(SPI_Type *base, spi_master_handle_t *handle, status_t status, void *userData): SPI master callback for finished transmit.

typedef void (*spi_slave_callback_t)(SPI_Type *base, spi_slave_handle_t *handle, status_t status, void *userData): SPI master callback for finished transmit.

volatile uint8_t g_spiDummyData[]: Global variable for dummy data value setting.

SPI_DUMMYDATA: SPI dummy transfer data, the data is sent while txBuff is NULL.

SPI_RETRY_TIMES: Retry times for waiting flag.

struct _spi_master_config

#include <fsl_spi.h>

SPI master user configure structure.

Public Members

bool enableMaster: Enable SPI at initialization time

bool enableStopInWaitMode: SPI stop in wait mode

spi_clock_polarity_t polarity: Clock polarity

spi_clock_phase_t phase: Clock phase

spi_shift_direction_t direction: MSB or LSB

spi_data_bitcount_mode_t dataMode: 8bit or 16bit mode

spi_txfifo_watermark_t txWatermark: Tx watermark settings

spi_rxfifo_watermark_t rxWatermark: Rx watermark settings

spi_ss_output_mode_t outputMode: SS pin setting

spi_pin_mode_t pinMode: SPI pin mode select

uint32_t baudRate_Bps: Baud Rate for SPI in Hz

struct _spi_slave_config

#include <fsl_spi.h>

SPI slave user configure structure.

Public Members

bool enableSlave: Enable SPI at initialization time

bool enableStopInWaitMode: SPI stop in wait mode

spi_clock_polarity_t polarity: Clock polarity

spi_clock_phase_t phase: Clock phase

spi_shift_direction_t direction: MSB or LSB

spi_data_bitcount_mode_t dataMode: 8bit or 16bit mode

spi_txfifo_watermark_t txWatermark: Tx watermark settings

spi_rxfifo_watermark_t rxWatermark: Rx watermark settings

spi_pin_mode_t pinMode: SPI pin mode select

struct _spi_transfer

#include <fsl_spi.h>

SPI transfer structure.

Public Members

const uint8_t *txData: Send buffer

uint8_t *rxData: Receive buffer

size_t dataSize: Transfer bytes

uint32_t flags: SPI control flag, useless to SPI.

struct _spi_master_handle

#include <fsl_spi.h>

SPI transfer handle structure.

Public Members

const uint8_t *volatile txData: Transfer buffer

uint8_t *volatile rxData: Receive buffer

volatile size_t txRemainingBytes: Send data remaining in bytes

volatile size_t rxRemainingBytes: Receive data remaining in bytes

volatile uint32_t state: SPI internal state

size_t transferSize: Bytes to be transferred

uint8_t bytePerFrame: SPI mode, 2bytes or 1byte in a frame

uint8_t watermark: Watermark value for SPI transfer

spi_master_callback_t callback: SPI callback

void *userData: Callback parameter

TPM: Timer PWM Module

uint32_t TPM_GetInstance(TPM_Type *base)

Gets the instance from the base address.

Parameters:

base – TPM peripheral base address

Returns:

The TPM instance

void TPM_Init(TPM_Type *base, const tpm_config_t *config)

Ungates the TPM clock and configures the peripheral for basic operation.

Note

This API should be called at the beginning of the application using the TPM driver.

Parameters:

base – TPM peripheral base address
config – Pointer to user’s TPM config structure.

void TPM_Deinit(TPM_Type *base)

Stops the counter and gates the TPM clock.

Parameters:

base – TPM peripheral base address

void TPM_GetDefaultConfig(tpm_config_t *config)

Fill in the TPM config struct with the default settings.

The default values are:

     config->prescale = kTPM_Prescale_Divide_1;
     config->useGlobalTimeBase = false;
     config->syncGlobalTimeBase = false;
     config->dozeEnable = false;
     config->dbgMode = false;
     config->enableReloadOnTrigger = false;
     config->enableStopOnOverflow = false;
     config->enableStartOnTrigger = false;
#if FSL_FEATURE_TPM_HAS_PAUSE_COUNTER_ON_TRIGGER
     config->enablePauseOnTrigger = false;
#endif
     config->triggerSelect = kTPM_Trigger_Select_0;
#if FSL_FEATURE_TPM_HAS_EXTERNAL_TRIGGER_SELECTION
     config->triggerSource = kTPM_TriggerSource_External;
     config->extTriggerPolarity = kTPM_ExtTrigger_Active_High;
#endif
#if defined(FSL_FEATURE_TPM_HAS_POL) && FSL_FEATURE_TPM_HAS_POL
     config->chnlPolarity = 0U;
#endif

Parameters:

config – Pointer to user’s TPM config structure.

tpm_clock_prescale_t TPM_CalculateCounterClkDiv(TPM_Type *base, uint32_t counterPeriod_Hz, uint32_t srcClock_Hz)

Calculates the counter clock prescaler.

This function calculates the values for SC[PS].

return Calculated clock prescaler value.

Parameters:

base – TPM peripheral base address
counterPeriod_Hz – The desired frequency in Hz which corresponding to the time when the counter reaches the mod value
srcClock_Hz – TPM counter clock in Hz

status_t TPM_SetupPwm(TPM_Type *base, const tpm_chnl_pwm_signal_param_t *chnlParams, uint8_t numOfChnls, tpm_pwm_mode_t mode, uint32_t pwmFreq_Hz, uint32_t srcClock_Hz)

Configures the PWM signal parameters.

User calls this function to configure the PWM signals period, mode, dutycycle and edge. Use this function to configure all the TPM channels that will be used to output a PWM signal

Parameters:

base – TPM peripheral base address
chnlParams – Array of PWM channel parameters to configure the channel(s)
numOfChnls – Number of channels to configure, this should be the size of the array passed in
mode – PWM operation mode, options available in enumeration tpm_pwm_mode_t
pwmFreq_Hz – PWM signal frequency in Hz
srcClock_Hz – TPM counter clock in Hz

Returns:

kStatus_Success if the PWM setup was successful, kStatus_Error on failure

status_t TPM_UpdatePwmDutycycle(TPM_Type *base, tpm_chnl_t chnlNumber, tpm_pwm_mode_t currentPwmMode, uint8_t dutyCyclePercent)

Update the duty cycle of an active PWM signal.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number. In combined mode, this represents the channel pair number
currentPwmMode – The current PWM mode set during PWM setup
dutyCyclePercent – New PWM pulse width, value should be between 0 to 100 0=inactive signal(0% duty cycle)… 100=active signal (100% duty cycle)

Returns:

kStatus_Success if the PWM setup was successful, kStatus_Error on failure

void TPM_UpdateChnlEdgeLevelSelect(TPM_Type *base, tpm_chnl_t chnlNumber, uint8_t level)

Update the edge level selection for a channel.

Note

When the TPM has PWM pause level select feature (FSL_FEATURE_TPM_HAS_PAUSE_LEVEL_SELECT = 1), the PWM output cannot be turned off by selecting the output level. In this case, must use TPM_DisableChannel API to close the PWM output.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number
level – The level to be set to the ELSnB:ELSnA field; valid values are 00, 01, 10, 11. See the appropriate SoC reference manual for details about this field.

static inline uint8_t TPM_GetChannelContorlBits(TPM_Type *base, tpm_chnl_t chnlNumber)

Get the channel control bits value (mode, edge and level bit fileds).

This function disable the channel by clear all mode and level control bits.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number

Returns:

The contorl bits value. This is the logical OR of members of the enumeration tpm_chnl_control_bit_mask_t.

static inline void TPM_DisableChannel(TPM_Type *base, tpm_chnl_t chnlNumber)

Dsiable the channel.

This function disable the channel by clear all mode and level control bits.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number

static inline void TPM_EnableChannel(TPM_Type *base, tpm_chnl_t chnlNumber, uint8_t control)

Enable the channel according to mode and level configs.

This function enable the channel output according to input mode/level config parameters.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number
control – The contorl bits value. This is the logical OR of members of the enumeration tpm_chnl_control_bit_mask_t.

void TPM_SetupInputCapture(TPM_Type *base, tpm_chnl_t chnlNumber, tpm_input_capture_edge_t captureMode)

Enables capturing an input signal on the channel using the function parameters.

When the edge specified in the captureMode argument occurs on the channel, the TPM counter is captured into the CnV register. The user has to read the CnV register separately to get this value.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number
captureMode – Specifies which edge to capture

void TPM_SetupOutputCompare(TPM_Type *base, tpm_chnl_t chnlNumber, tpm_output_compare_mode_t compareMode, uint32_t compareValue)

Configures the TPM to generate timed pulses.

When the TPM counter matches the value of compareVal argument (this is written into CnV reg), the channel output is changed based on what is specified in the compareMode argument.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number
compareMode – Action to take on the channel output when the compare condition is met
compareValue – Value to be programmed in the CnV register.

void TPM_SetupDualEdgeCapture(TPM_Type *base, tpm_chnl_t chnlPairNumber, const tpm_dual_edge_capture_param_t *edgeParam, uint32_t filterValue)

Configures the dual edge capture mode of the TPM.

This function allows to measure a pulse width of the signal on the input of channel of a channel pair. The filter function is disabled if the filterVal argument passed is zero.

Parameters:

base – TPM peripheral base address
chnlPairNumber – The TPM channel pair number; options are 0, 1, 2, 3
edgeParam – Sets up the dual edge capture function
filterValue – Filter value, specify 0 to disable filter.

void TPM_SetupQuadDecode(TPM_Type *base, const tpm_phase_params_t *phaseAParams, const tpm_phase_params_t *phaseBParams, tpm_quad_decode_mode_t quadMode)

Configures the parameters and activates the quadrature decode mode.

Parameters:

base – TPM peripheral base address
phaseAParams – Phase A configuration parameters
phaseBParams – Phase B configuration parameters
quadMode – Selects encoding mode used in quadrature decoder mode

static inline void TPM_SetChannelPolarity(TPM_Type *base, tpm_chnl_t chnlNumber, bool enable)

Set the input and output polarity of each of the channels.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number
enable – true: Set the channel polarity to active high; false: Set the channel polarity to active low;

static inline void TPM_EnableChannelExtTrigger(TPM_Type *base, tpm_chnl_t chnlNumber, bool enable)

Enable external trigger input to be used by channel.

In input capture mode, configures the trigger input that is used by the channel to capture the counter value. In output compare or PWM mode, configures the trigger input used to modulate the channel output. When modulating the output, the output is forced to the channel initial value whenever the trigger is not asserted.

Note

No matter how many external trigger sources there are, only input trigger 0 and 1 are used. The even numbered channels share the input trigger 0 and the odd numbered channels share the second input trigger 1.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number
enable – true: Configures trigger input 0 or 1 to be used by channel; false: Trigger input has no effect on the channel

void TPM_EnableInterrupts(TPM_Type *base, uint32_t mask)

Enables the selected TPM interrupts.

Parameters:

base – TPM peripheral base address
mask – The interrupts to enable. This is a logical OR of members of the enumeration tpm_interrupt_enable_t

void TPM_DisableInterrupts(TPM_Type *base, uint32_t mask)

Disables the selected TPM interrupts.

Parameters:

base – TPM peripheral base address
mask – The interrupts to disable. This is a logical OR of members of the enumeration tpm_interrupt_enable_t

uint32_t TPM_GetEnabledInterrupts(TPM_Type *base)

Gets the enabled TPM interrupts.

Parameters:

base – TPM peripheral base address

Returns:

The enabled interrupts. This is the logical OR of members of the enumeration tpm_interrupt_enable_t

void TPM_RegisterCallBack(TPM_Type *base, tpm_callback_t callback)

Register callback.

If channel or overflow interrupt is enabled by the user, then a callback can be registered which will be invoked when the interrupt is triggered.

Parameters:

base – TPM peripheral base address
callback – Callback function

static inline uint32_t TPM_GetChannelValue(TPM_Type *base, tpm_chnl_t chnlNumber)

Gets the TPM channel value.

Note

The TPM channel value contain the captured TPM counter value for the input modes or the match value for the output modes.

Parameters:

base – TPM peripheral base address
chnlNumber – The channel number

Returns:

The channle CnV regisyer value.

static inline uint32_t TPM_GetStatusFlags(TPM_Type *base)

Gets the TPM status flags.

Parameters:

base – TPM peripheral base address

Returns:

The status flags. This is the logical OR of members of the enumeration tpm_status_flags_t

static inline void TPM_ClearStatusFlags(TPM_Type *base, uint32_t mask)

Clears the TPM status flags.

Parameters:

base – TPM peripheral base address
mask – The status flags to clear. This is a logical OR of members of the enumeration tpm_status_flags_t

static inline void TPM_SetTimerPeriod(TPM_Type *base, uint32_t ticks)

Sets the timer period in units of ticks.

Timers counts from 0 until it equals the count value set here. The count value is written to the MOD register.

Note

This API allows the user to use the TPM module as a timer. Do not mix usage of this API with TPM’s PWM setup API’s.
Call the utility macros provided in the fsl_common.h to convert usec or msec to ticks.

Parameters:

base – TPM peripheral base address
ticks – A timer period in units of ticks, which should be equal or greater than 1.

static inline uint32_t TPM_GetCurrentTimerCount(TPM_Type *base)

Reads the current timer counting value.

This function returns the real-time timer counting value in a range from 0 to a timer period.

Note

Call the utility macros provided in the fsl_common.h to convert ticks to usec or msec.

Parameters:

base – TPM peripheral base address

Returns:

The current counter value in ticks

static inline void TPM_StartTimer(TPM_Type *base, tpm_clock_source_t clockSource)

Starts the TPM counter.

Parameters:

base – TPM peripheral base address
clockSource – TPM clock source; once clock source is set the counter will start running

static inline void TPM_StopTimer(TPM_Type *base)

Stops the TPM counter.

Parameters:

base – TPM peripheral base address

FSL_TPM_DRIVER_VERSION: TPM driver version 2.3.2.

enum _tpm_chnl

List of TPM channels.

Note

Actual number of available channels is SoC dependent

Values:

enumerator kTPM_Chnl_0: TPM channel number 0

enumerator kTPM_Chnl_1: TPM channel number 1

enumerator kTPM_Chnl_2: TPM channel number 2

enumerator kTPM_Chnl_3: TPM channel number 3

enumerator kTPM_Chnl_4: TPM channel number 4

enumerator kTPM_Chnl_5: TPM channel number 5

enumerator kTPM_Chnl_6: TPM channel number 6

enumerator kTPM_Chnl_7: TPM channel number 7

enum _tpm_pwm_mode

TPM PWM operation modes.

Values:

enumerator kTPM_EdgeAlignedPwm: Edge aligned PWM

enumerator kTPM_CenterAlignedPwm: Center aligned PWM

enumerator kTPM_CombinedPwm: Combined PWM (Edge-aligned, center-aligned, or asymmetrical PWMs can be obtained in combined mode using different software configurations)

enum _tpm_pwm_level_select

TPM PWM output pulse mode: high-true, low-true or no output.

Note

When the TPM has PWM pause level select feature, the PWM output cannot be turned off by selecting the output level. In this case, the channel must be closed to close the PWM output.

Values:

enumerator kTPM_NoPwmSignal: No PWM output on pin

enumerator kTPM_LowTrue: Low true pulses

enumerator kTPM_HighTrue: High true pulses

enum _tpm_chnl_control_bit_mask

List of TPM channel modes and level control bit mask.

Values:

enumerator kTPM_ChnlELSnAMask: Channel ELSA bit mask.

enumerator kTPM_ChnlELSnBMask: Channel ELSB bit mask.

enumerator kTPM_ChnlMSAMask: Channel MSA bit mask.

enumerator kTPM_ChnlMSBMask: Channel MSB bit mask.

enum _tpm_trigger_select

Trigger sources available.

This is used for both internal & external trigger sources (external trigger sources available in certain SoC’s)

Note

The actual trigger sources available is SoC-specific.

Values:

enumerator kTPM_Trigger_Select_0

enumerator kTPM_Trigger_Select_1

enumerator kTPM_Trigger_Select_2

enumerator kTPM_Trigger_Select_3

enumerator kTPM_Trigger_Select_4

enumerator kTPM_Trigger_Select_5

enumerator kTPM_Trigger_Select_6

enumerator kTPM_Trigger_Select_7

enumerator kTPM_Trigger_Select_8

enumerator kTPM_Trigger_Select_9

enumerator kTPM_Trigger_Select_10

enumerator kTPM_Trigger_Select_11

enumerator kTPM_Trigger_Select_12

enumerator kTPM_Trigger_Select_13

enumerator kTPM_Trigger_Select_14

enumerator kTPM_Trigger_Select_15

enum _tpm_trigger_source

Trigger source options available.

Note

This selection is available only on some SoC’s. For SoC’s without this selection, the only trigger source available is internal triger.

Values:

enumerator kTPM_TriggerSource_External: Use external trigger input

enumerator kTPM_TriggerSource_Internal: Use internal trigger (channel pin input capture)

enum _tpm_ext_trigger_polarity

External trigger source polarity.

Note

Selects the polarity of the external trigger source.

Values:

enumerator kTPM_ExtTrigger_Active_High: External trigger input is active high

enumerator kTPM_ExtTrigger_Active_Low: External trigger input is active low

enum _tpm_output_compare_mode

TPM output compare modes.

Values:

enumerator kTPM_NoOutputSignal: No channel output when counter reaches CnV

enumerator kTPM_ToggleOnMatch: Toggle output

enumerator kTPM_ClearOnMatch: Clear output

enumerator kTPM_SetOnMatch: Set output

enumerator kTPM_HighPulseOutput: Pulse output high

enumerator kTPM_LowPulseOutput: Pulse output low

enum _tpm_input_capture_edge

TPM input capture edge.

Values:

enumerator kTPM_RisingEdge: Capture on rising edge only

enumerator kTPM_FallingEdge: Capture on falling edge only

enumerator kTPM_RiseAndFallEdge: Capture on rising or falling edge

enum _tpm_quad_decode_mode

TPM quadrature decode modes.

Note

This mode is available only on some SoC’s.

Values:

enumerator kTPM_QuadPhaseEncode: Phase A and Phase B encoding mode

enumerator kTPM_QuadCountAndDir: Count and direction encoding mode

enum _tpm_phase_polarity

TPM quadrature phase polarities.

Values:

enumerator kTPM_QuadPhaseNormal: Phase input signal is not inverted

enumerator kTPM_QuadPhaseInvert: Phase input signal is inverted

enum _tpm_clock_source

TPM clock source selection.

Values:

enumerator kTPM_SystemClock: System clock

enumerator kTPM_ExternalClock: External TPM_EXTCLK pin clock

enumerator kTPM_ExternalInputTriggerClock: Selected external input trigger clock

enum _tpm_clock_prescale

TPM prescale value selection for the clock source.

Values:

enumerator kTPM_Prescale_Divide_1: Divide by 1

enumerator kTPM_Prescale_Divide_2: Divide by 2

enumerator kTPM_Prescale_Divide_4: Divide by 4

enumerator kTPM_Prescale_Divide_8: Divide by 8

enumerator kTPM_Prescale_Divide_16: Divide by 16

enumerator kTPM_Prescale_Divide_32: Divide by 32

enumerator kTPM_Prescale_Divide_64: Divide by 64

enumerator kTPM_Prescale_Divide_128: Divide by 128

enum _tpm_interrupt_enable

List of TPM interrupts.

Values:

enumerator kTPM_Chnl0InterruptEnable: Channel 0 interrupt.

enumerator kTPM_Chnl1InterruptEnable: Channel 1 interrupt.

enumerator kTPM_Chnl2InterruptEnable: Channel 2 interrupt.

enumerator kTPM_Chnl3InterruptEnable: Channel 3 interrupt.

enumerator kTPM_Chnl4InterruptEnable: Channel 4 interrupt.

enumerator kTPM_Chnl5InterruptEnable: Channel 5 interrupt.

enumerator kTPM_Chnl6InterruptEnable: Channel 6 interrupt.

enumerator kTPM_Chnl7InterruptEnable: Channel 7 interrupt.

enumerator kTPM_TimeOverflowInterruptEnable: Time overflow interrupt.

enum _tpm_status_flags

List of TPM flags.

Values:

enumerator kTPM_Chnl0Flag: Channel 0 flag

enumerator kTPM_Chnl1Flag: Channel 1 flag

enumerator kTPM_Chnl2Flag: Channel 2 flag

enumerator kTPM_Chnl3Flag: Channel 3 flag

enumerator kTPM_Chnl4Flag: Channel 4 flag

enumerator kTPM_Chnl5Flag: Channel 5 flag

enumerator kTPM_Chnl6Flag: Channel 6 flag

enumerator kTPM_Chnl7Flag: Channel 7 flag

enumerator kTPM_TimeOverflowFlag: Time overflow flag

typedef enum _tpm_chnl tpm_chnl_t: List of TPM channels.

Note

Actual number of available channels is SoC dependent

typedef enum _tpm_pwm_mode tpm_pwm_mode_t: TPM PWM operation modes.

typedef enum _tpm_pwm_level_select tpm_pwm_level_select_t: TPM PWM output pulse mode: high-true, low-true or no output.

Note

When the TPM has PWM pause level select feature, the PWM output cannot be turned off by selecting the output level. In this case, the channel must be closed to close the PWM output.

typedef enum _tpm_chnl_control_bit_mask tpm_chnl_control_bit_mask_t: List of TPM channel modes and level control bit mask.

typedef struct _tpm_chnl_pwm_signal_param tpm_chnl_pwm_signal_param_t: Options to configure a TPM channel’s PWM signal.

typedef enum _tpm_trigger_select tpm_trigger_select_t

Trigger sources available.

This is used for both internal & external trigger sources (external trigger sources available in certain SoC’s)

Note

The actual trigger sources available is SoC-specific.

typedef enum _tpm_trigger_source tpm_trigger_source_t: Trigger source options available.

Note

This selection is available only on some SoC’s. For SoC’s without this selection, the only trigger source available is internal triger.

typedef enum _tpm_ext_trigger_polarity tpm_ext_trigger_polarity_t: External trigger source polarity.

Note

Selects the polarity of the external trigger source.

typedef enum _tpm_output_compare_mode tpm_output_compare_mode_t: TPM output compare modes.

typedef enum _tpm_input_capture_edge tpm_input_capture_edge_t: TPM input capture edge.

typedef struct _tpm_dual_edge_capture_param tpm_dual_edge_capture_param_t: TPM dual edge capture parameters.

Note

This mode is available only on some SoC’s.

typedef enum _tpm_quad_decode_mode tpm_quad_decode_mode_t: TPM quadrature decode modes.

Note

This mode is available only on some SoC’s.

typedef enum _tpm_phase_polarity tpm_phase_polarity_t: TPM quadrature phase polarities.

typedef struct _tpm_phase_param tpm_phase_params_t: TPM quadrature decode phase parameters.

typedef enum _tpm_clock_source tpm_clock_source_t: TPM clock source selection.

typedef enum _tpm_clock_prescale tpm_clock_prescale_t: TPM prescale value selection for the clock source.

typedef struct _tpm_config tpm_config_t

TPM config structure.

This structure holds the configuration settings for the TPM peripheral. To initialize this structure to reasonable defaults, call the TPM_GetDefaultConfig() function and pass a pointer to your config structure instance.

The config struct can be made const so it resides in flash

typedef enum _tpm_interrupt_enable tpm_interrupt_enable_t: List of TPM interrupts.

typedef enum _tpm_status_flags tpm_status_flags_t: List of TPM flags.

typedef void (*tpm_callback_t)(TPM_Type *base)

TPM callback function pointer.

Param base:: TPM peripheral base address.

static inline void TPM_Reset(TPM_Type *base)

Performs a software reset on the TPM module.

Reset all internal logic and registers, except the Global Register. Remains set until cleared by software.

Note

TPM software reset is available on certain SoC’s only

Parameters:

base – TPM peripheral base address

TPM_MAX_COUNTER_VALUE(x): Help macro to get the max counter value.

struct _tpm_chnl_pwm_signal_param

#include <fsl_tpm.h>

Options to configure a TPM channel’s PWM signal.

Public Members

tpm_chnl_t chnlNumber: TPM channel to configure. In combined mode (available in some SoC’s), this represents the channel pair number

tpm_pwm_level_select_t level: PWM output active level select

uint8_t dutyCyclePercent: PWM pulse width, value should be between 0 to 100 0=inactive signal(0% duty cycle)… 100=always active signal (100% duty cycle)

uint8_t firstEdgeDelayPercent: Used only in combined PWM mode to generate asymmetrical PWM. Specifies the delay to the first edge in a PWM period. If unsure, leave as 0. Should be specified as percentage of the PWM period, (dutyCyclePercent + firstEdgeDelayPercent) value should be not greate than 100.

bool enableComplementary: Used only in combined PWM mode. true: The combined channels output complementary signals; false: The combined channels output same signals;

uint8_t deadTimeValue[2]: The dead time value for channel n and n+1 in combined complementary PWM mode. Deadtime insertion is disabled when this value is zero, otherwise deadtime insertion for channel n/n+1 is configured as (deadTimeValue * 4) clock cycles. deadTimeValue’s available range is 0 ~ 15.

struct _tpm_dual_edge_capture_param

#include <fsl_tpm.h>

TPM dual edge capture parameters.

Note

This mode is available only on some SoC’s.

Public Members

bool enableSwap: true: Use channel n+1 input, channel n input is ignored; false: Use channel n input, channel n+1 input is ignored

tpm_input_capture_edge_t currChanEdgeMode: Input capture edge select for channel n

tpm_input_capture_edge_t nextChanEdgeMode: Input capture edge select for channel n+1

struct _tpm_phase_param

#include <fsl_tpm.h>

TPM quadrature decode phase parameters.

Public Members

uint32_t phaseFilterVal: Filter value, filter is disabled when the value is zero

tpm_phase_polarity_t phasePolarity: Phase polarity

struct _tpm_config

#include <fsl_tpm.h>

TPM config structure.

This structure holds the configuration settings for the TPM peripheral. To initialize this structure to reasonable defaults, call the TPM_GetDefaultConfig() function and pass a pointer to your config structure instance.

The config struct can be made const so it resides in flash

Public Members

tpm_clock_prescale_t prescale: Select TPM clock prescale value

bool useGlobalTimeBase: true: The TPM channels use an external global time base (the local counter still use for generate overflow interrupt and DMA request); false: All TPM channels use the local counter as their timebase

bool syncGlobalTimeBase: true: The TPM counter is synchronized to the global time base; false: disabled

tpm_trigger_select_t triggerSelect: Input trigger to use for controlling the counter operation

tpm_trigger_source_t triggerSource: Decides if we use external or internal trigger.

tpm_ext_trigger_polarity_t extTriggerPolarity: when using external trigger source, need selects the polarity of it.

bool enableDoze: true: TPM counter is paused in doze mode; false: TPM counter continues in doze mode

bool enableDebugMode: true: TPM counter continues in debug mode; false: TPM counter is paused in debug mode

bool enableReloadOnTrigger: true: TPM counter is reloaded on trigger; false: TPM counter not reloaded

bool enableStopOnOverflow: true: TPM counter stops after overflow; false: TPM counter continues running after overflow

bool enableStartOnTrigger: true: TPM counter only starts when a trigger is detected; false: TPM counter starts immediately

bool enablePauseOnTrigger: true: TPM counter will pause while trigger remains asserted; false: TPM counter continues running

uint8_t chnlPolarity: Defines the input/output polarity of the channels in POL register

UART: Universal Asynchronous Receiver/Transmitter Driver

UART DMA Driver

void UART_TransferCreateHandleDMA(UART_Type *base, uart_dma_handle_t *handle, uart_dma_transfer_callback_t callback, void *userData, dma_handle_t *txDmaHandle, dma_handle_t *rxDmaHandle)

Initializes the UART handle which is used in transactional functions and sets the callback.

Parameters:

base – UART peripheral base address.
handle – Pointer to the uart_dma_handle_t structure.
callback – UART callback, NULL means no callback.
userData – User callback function data.
rxDmaHandle – User requested DMA handle for the RX DMA transfer.
txDmaHandle – User requested DMA handle for the TX DMA transfer.

status_t UART_TransferSendDMA(UART_Type *base, uart_dma_handle_t *handle, uart_transfer_t *xfer)

Sends data using DMA.

This function sends data using DMA. This is non-blocking function, which returns right away. When all data is sent, the send callback function is called.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.
xfer – UART DMA transfer structure. See uart_transfer_t.

Return values:

kStatus_Success – if succeeded; otherwise failed.
kStatus_UART_TxBusy – Previous transfer ongoing.
kStatus_InvalidArgument – Invalid argument.

status_t UART_TransferReceiveDMA(UART_Type *base, uart_dma_handle_t *handle, uart_transfer_t *xfer)

Receives data using DMA.

This function receives data using DMA. This is non-blocking function, which returns right away. When all data is received, the receive callback function is called.

Parameters:

base – UART peripheral base address.
handle – Pointer to the uart_dma_handle_t structure.
xfer – UART DMA transfer structure. See uart_transfer_t.

Return values:

kStatus_Success – if succeeded; otherwise failed.
kStatus_UART_RxBusy – Previous transfer on going.
kStatus_InvalidArgument – Invalid argument.

void UART_TransferAbortSendDMA(UART_Type *base, uart_dma_handle_t *handle)

Aborts the send data using DMA.

This function aborts the sent data using DMA.

Parameters:

base – UART peripheral base address.
handle – Pointer to uart_dma_handle_t structure.

void UART_TransferAbortReceiveDMA(UART_Type *base, uart_dma_handle_t *handle)

Aborts the received data using DMA.

This function abort receive data which using DMA.

Parameters:

base – UART peripheral base address.
handle – Pointer to uart_dma_handle_t structure.

status_t UART_TransferGetSendCountDMA(UART_Type *base, uart_dma_handle_t *handle, uint32_t *count)

Gets the number of bytes written to UART TX register.

This function gets the number of bytes written to UART TX register by DMA.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.
count – Send bytes count.

Return values:

kStatus_NoTransferInProgress – No send in progress.
kStatus_InvalidArgument – Parameter is invalid.
kStatus_Success – Get successfully through the parameter count;

status_t UART_TransferGetReceiveCountDMA(UART_Type *base, uart_dma_handle_t *handle, uint32_t *count)

Gets the number of bytes that have been received.

This function gets the number of bytes that have been received.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.
count – Receive bytes count.

Return values:

kStatus_NoTransferInProgress – No receive in progress.
kStatus_InvalidArgument – Parameter is invalid.
kStatus_Success – Get successfully through the parameter count;

void UART_TransferDMAHandleIRQ(UART_Type *base, void *uartDmaHandle)

UART DMA IRQ handle function.

This function handles the UART transmit complete IRQ request and invoke user callback.

Parameters:

base – UART peripheral base address.
uartDmaHandle – UART handle pointer.

FSL_UART_DMA_DRIVER_VERSION: UART DMA driver version.

typedef struct _uart_dma_handle uart_dma_handle_t

typedef void (*uart_dma_transfer_callback_t)(UART_Type *base, uart_dma_handle_t *handle, status_t status, void *userData): UART transfer callback function.

struct _uart_dma_handle

#include <fsl_uart_dma.h>

UART DMA handle.

Public Members

UART_Type *base: UART peripheral base address.

uart_dma_transfer_callback_t callback: Callback function.

void *userData: UART callback function parameter.

size_t rxDataSizeAll: Size of the data to receive.

size_t txDataSizeAll: Size of the data to send out.

dma_handle_t *txDmaHandle: The DMA TX channel used.

dma_handle_t *rxDmaHandle: The DMA RX channel used.

volatile uint8_t txState: TX transfer state.

volatile uint8_t rxState: RX transfer state

UART Driver

status_t UART_Init(UART_Type *base, const uart_config_t *config, uint32_t srcClock_Hz)

Initializes a UART instance with a user configuration structure and peripheral clock.

This function configures the UART module with the user-defined settings. The user can configure the configuration structure and also get the default configuration by using the UART_GetDefaultConfig() function. The example below shows how to use this API to configure UART.

uart_config_t uartConfig;
uartConfig.baudRate_Bps = 115200U;
uartConfig.parityMode = kUART_ParityDisabled;
uartConfig.stopBitCount = kUART_OneStopBit;
uartConfig.txFifoWatermark = 0;
uartConfig.rxFifoWatermark = 1;
UART_Init(UART1, &uartConfig, 20000000U);

Parameters:

base – UART peripheral base address.
config – Pointer to the user-defined configuration structure.
srcClock_Hz – UART clock source frequency in HZ.

Return values:

kStatus_UART_BaudrateNotSupport – Baudrate is not support in current clock source.
kStatus_Success – Status UART initialize succeed

void UART_Deinit(UART_Type *base)

Deinitializes a UART instance.

This function waits for TX complete, disables TX and RX, and disables the UART clock.

Parameters:

base – UART peripheral base address.

void UART_GetDefaultConfig(uart_config_t *config)

Gets the default configuration structure.

This function initializes the UART configuration structure to a default value. The default values are as follows. uartConfig->baudRate_Bps = 115200U; uartConfig->bitCountPerChar = kUART_8BitsPerChar; uartConfig->parityMode = kUART_ParityDisabled; uartConfig->stopBitCount = kUART_OneStopBit; uartConfig->txFifoWatermark = 0; uartConfig->rxFifoWatermark = 1; uartConfig->idleType = kUART_IdleTypeStartBit; uartConfig->enableTx = false; uartConfig->enableRx = false;

Parameters:

config – Pointer to configuration structure.

status_t UART_SetBaudRate(UART_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz)

Sets the UART instance baud rate.

This function configures the UART module baud rate. This function is used to update the UART module baud rate after the UART module is initialized by the UART_Init.

UART_SetBaudRate(UART1, 115200U, 20000000U);

Parameters:

base – UART peripheral base address.
baudRate_Bps – UART baudrate to be set.
srcClock_Hz – UART clock source frequency in Hz.

Return values:

kStatus_UART_BaudrateNotSupport – Baudrate is not support in the current clock source.
kStatus_Success – Set baudrate succeeded.

void UART_Enable9bitMode(UART_Type *base, bool enable)

Enable 9-bit data mode for UART.

This function set the 9-bit mode for UART module. The 9th bit is not used for parity thus can be modified by user.

Parameters:

base – UART peripheral base address.
enable – true to enable, flase to disable.

static inline void UART_SetMatchAddress(UART_Type *base, uint8_t address1, uint8_t address2)

Set the UART slave address.

This function configures the address for UART module that works as slave in 9-bit data mode. One or two address fields can be configured. When the address field’s match enable bit is set, the frame it receices with MSB being 1 is considered as an address frame, otherwise it is considered as data frame. Once the address frame matches one of slave’s own addresses, this slave is addressed. This address frame and its following data frames are stored in the receive buffer, otherwise the frames will be discarded. To un-address a slave, just send an address frame with unmatched address.

Note

Any UART instance joined in the multi-slave system can work as slave. The position of the address mark is the same as the parity bit when parity is enabled for 8 bit and 9 bit data formats.

Parameters:

base – UART peripheral base address.
address1 – UART slave address 1.
address2 – UART slave address 2.

static inline void UART_EnableMatchAddress(UART_Type *base, bool match1, bool match2)

Enable the UART match address feature.

Parameters:

base – UART peripheral base address.
match1 – true to enable match address1, false to disable.
match2 – true to enable match address2, false to disable.

static inline void UART_Set9thTransmitBit(UART_Type *base)

Set UART 9th transmit bit.

Parameters:

base – UART peripheral base address.

static inline void UART_Clear9thTransmitBit(UART_Type *base)

Clear UART 9th transmit bit.

Parameters:

base – UART peripheral base address.

uint32_t UART_GetStatusFlags(UART_Type *base)

Gets UART status flags.

This function gets all UART status flags. The flags are returned as the logical OR value of the enumerators _uart_flags. To check a specific status, compare the return value with enumerators in _uart_flags. For example, to check whether the TX is empty, do the following.

if (kUART_TxDataRegEmptyFlag & UART_GetStatusFlags(UART1))
{
    ...
}

Parameters:

base – UART peripheral base address.

Returns:

UART status flags which are ORed by the enumerators in the _uart_flags.

status_t UART_ClearStatusFlags(UART_Type *base, uint32_t mask)

Clears status flags with the provided mask.

This function clears UART status flags with a provided mask. An automatically cleared flag can’t be cleared by this function. These flags can only be cleared or set by hardware. kUART_TxDataRegEmptyFlag, kUART_TransmissionCompleteFlag, kUART_RxDataRegFullFlag, kUART_RxActiveFlag, kUART_NoiseErrorInRxDataRegFlag, kUART_ParityErrorInRxDataRegFlag, kUART_TxFifoEmptyFlag,kUART_RxFifoEmptyFlag

Note

that this API should be called when the Tx/Rx is idle. Otherwise it has no effect.

Parameters:

base – UART peripheral base address.
mask – The status flags to be cleared; it is logical OR value of _uart_flags.

Return values:

kStatus_UART_FlagCannotClearManually – The flag can’t be cleared by this function but it is cleared automatically by hardware.
kStatus_Success – Status in the mask is cleared.

void UART_EnableInterrupts(UART_Type *base, uint32_t mask)

Enables UART interrupts according to the provided mask.

This function enables the UART interrupts according to the provided mask. The mask is a logical OR of enumeration members. See _uart_interrupt_enable. For example, to enable TX empty interrupt and RX full interrupt, do the following.

UART_EnableInterrupts(UART1,kUART_TxDataRegEmptyInterruptEnable | kUART_RxDataRegFullInterruptEnable);

Parameters:

base – UART peripheral base address.
mask – The interrupts to enable. Logical OR of _uart_interrupt_enable.

void UART_DisableInterrupts(UART_Type *base, uint32_t mask)

Disables the UART interrupts according to the provided mask.

This function disables the UART interrupts according to the provided mask. The mask is a logical OR of enumeration members. See _uart_interrupt_enable. For example, to disable TX empty interrupt and RX full interrupt do the following.

UART_DisableInterrupts(UART1,kUART_TxDataRegEmptyInterruptEnable | kUART_RxDataRegFullInterruptEnable);

Parameters:

base – UART peripheral base address.
mask – The interrupts to disable. Logical OR of _uart_interrupt_enable.

uint32_t UART_GetEnabledInterrupts(UART_Type *base)

Gets the enabled UART interrupts.

This function gets the enabled UART interrupts. The enabled interrupts are returned as the logical OR value of the enumerators _uart_interrupt_enable. To check a specific interrupts enable status, compare the return value with enumerators in _uart_interrupt_enable. For example, to check whether TX empty interrupt is enabled, do the following.

uint32_t enabledInterrupts = UART_GetEnabledInterrupts(UART1);

if (kUART_TxDataRegEmptyInterruptEnable & enabledInterrupts)
{
    ...
}

Parameters:

base – UART peripheral base address.

Returns:

UART interrupt flags which are logical OR of the enumerators in _uart_interrupt_enable.

static inline uint32_t UART_GetDataRegisterAddress(UART_Type *base)

Gets the UART data register address.

This function returns the UART data register address, which is mainly used by DMA/eDMA.

Parameters:

base – UART peripheral base address.

Returns:

UART data register addresses which are used both by the transmitter and the receiver.

static inline void UART_EnableTxDMA(UART_Type *base, bool enable)

Enables or disables the UART transmitter DMA request.

This function enables or disables the transmit data register empty flag, S1[TDRE], to generate the DMA requests.

Parameters:

base – UART peripheral base address.
enable – True to enable, false to disable.

static inline void UART_EnableRxDMA(UART_Type *base, bool enable)

Enables or disables the UART receiver DMA.

This function enables or disables the receiver data register full flag, S1[RDRF], to generate DMA requests.

Parameters:

base – UART peripheral base address.
enable – True to enable, false to disable.

static inline void UART_EnableTx(UART_Type *base, bool enable)

Enables or disables the UART transmitter.

This function enables or disables the UART transmitter.

Parameters:

base – UART peripheral base address.
enable – True to enable, false to disable.

static inline void UART_EnableRx(UART_Type *base, bool enable)

Enables or disables the UART receiver.

This function enables or disables the UART receiver.

Parameters:

base – UART peripheral base address.
enable – True to enable, false to disable.

static inline void UART_WriteByte(UART_Type *base, uint8_t data)

Writes to the TX register.

This function writes data to the TX register directly. The upper layer must ensure that the TX register is empty or TX FIFO has empty room before calling this function.

Parameters:

base – UART peripheral base address.
data – The byte to write.

static inline uint8_t UART_ReadByte(UART_Type *base)

Reads the RX register directly.

This function reads data from the RX register directly. The upper layer must ensure that the RX register is full or that the TX FIFO has data before calling this function.

Parameters:

base – UART peripheral base address.

Returns:

The byte read from UART data register.

static inline uint8_t UART_GetRxFifoCount(UART_Type *base)

Gets the rx FIFO data count.

Parameters:

base – UART peripheral base address.

Returns:

rx FIFO data count.

static inline uint8_t UART_GetTxFifoCount(UART_Type *base)

Gets the tx FIFO data count.

Parameters:

base – UART peripheral base address.

Returns:

tx FIFO data count.

void UART_SendAddress(UART_Type *base, uint8_t address)

Transmit an address frame in 9-bit data mode.

Parameters:

base – UART peripheral base address.
address – UART slave address.

status_t UART_WriteBlocking(UART_Type *base, const uint8_t *data, size_t length)

Writes to the TX register using a blocking method.

This function polls the TX register, waits for the TX register to be empty or for the TX FIFO to have room and writes data to the TX buffer.

Parameters:

base – UART peripheral base address.
data – Start address of the data to write.
length – Size of the data to write.

Return values:

kStatus_UART_Timeout – Transmission timed out and was aborted.
kStatus_Success – Successfully wrote all data.

status_t UART_ReadBlocking(UART_Type *base, uint8_t *data, size_t length)

Read RX data register using a blocking method.

This function polls the RX register, waits for the RX register to be full or for RX FIFO to have data, and reads data from the TX register.

Parameters:

base – UART peripheral base address.
data – Start address of the buffer to store the received data.
length – Size of the buffer.

Return values:

kStatus_UART_RxHardwareOverrun – Receiver overrun occurred while receiving data.
kStatus_UART_NoiseError – A noise error occurred while receiving data.
kStatus_UART_FramingError – A framing error occurred while receiving data.
kStatus_UART_ParityError – A parity error occurred while receiving data.
kStatus_UART_Timeout – Transmission timed out and was aborted.
kStatus_Success – Successfully received all data.

void UART_TransferCreateHandle(UART_Type *base, uart_handle_t *handle, uart_transfer_callback_t callback, void *userData)

Initializes the UART handle.

This function initializes the UART handle which can be used for other UART transactional APIs. Usually, for a specified UART instance, call this API once to get the initialized handle.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.
callback – The callback function.
userData – The parameter of the callback function.

void UART_TransferStartRingBuffer(UART_Type *base, uart_handle_t *handle, uint8_t *ringBuffer, size_t ringBufferSize)

Sets up the RX ring buffer.

This function sets up the RX ring buffer to a specific UART handle.

When the RX ring buffer is used, data received are stored into the ring buffer even when the user doesn’t call the UART_TransferReceiveNonBlocking() API. If data is already received in the ring buffer, the user can get the received data from the ring buffer directly.

Note

When using the RX ring buffer, one byte is reserved for internal use. In other words, if ringBufferSize is 32, only 31 bytes are used for saving data.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.
ringBuffer – Start address of the ring buffer for background receiving. Pass NULL to disable the ring buffer.
ringBufferSize – Size of the ring buffer.

void UART_TransferStopRingBuffer(UART_Type *base, uart_handle_t *handle)

Aborts the background transfer and uninstalls the ring buffer.

This function aborts the background transfer and uninstalls the ring buffer.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.

size_t UART_TransferGetRxRingBufferLength(uart_handle_t *handle)

Get the length of received data in RX ring buffer.

Parameters:

handle – UART handle pointer.

Returns:

Length of received data in RX ring buffer.

status_t UART_TransferSendNonBlocking(UART_Type *base, uart_handle_t *handle, uart_transfer_t *xfer)

Transmits a buffer of data using the interrupt method.

This function sends data using an interrupt method. This is a non-blocking function, which returns directly without waiting for all data to be written to the TX register. When all data is written to the TX register in the ISR, the UART driver calls the callback function and passes the kStatus_UART_TxIdle as status parameter.

Note

The kStatus_UART_TxIdle is passed to the upper layer when all data is written to the TX register. However, it does not ensure that all data is sent out. Before disabling the TX, check the kUART_TransmissionCompleteFlag to ensure that the TX is finished.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.
xfer – UART transfer structure. See uart_transfer_t.

Return values:

kStatus_Success – Successfully start the data transmission.
kStatus_UART_TxBusy – Previous transmission still not finished; data not all written to TX register yet.
kStatus_InvalidArgument – Invalid argument.

void UART_TransferAbortSend(UART_Type *base, uart_handle_t *handle)

Aborts the interrupt-driven data transmit.

This function aborts the interrupt-driven data sending. The user can get the remainBytes to find out how many bytes are not sent out.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.

status_t UART_TransferGetSendCount(UART_Type *base, uart_handle_t *handle, uint32_t *count)

Gets the number of bytes sent out to bus.

This function gets the number of bytes sent out to bus by using the interrupt method.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.
count – Send bytes count.

Return values:

kStatus_NoTransferInProgress – No send in progress.
kStatus_InvalidArgument – The parameter is invalid.
kStatus_Success – Get successfully through the parameter count;

status_t UART_TransferReceiveNonBlocking(UART_Type *base, uart_handle_t *handle, uart_transfer_t *xfer, size_t *receivedBytes)

Receives a buffer of data using an interrupt method.

This function receives data using an interrupt method. This is a non-blocking function, which returns without waiting for all data to be received. If the RX ring buffer is used and not empty, the data in the ring buffer is copied and the parameter receivedBytes shows how many bytes are copied from the ring buffer. After copying, if the data in the ring buffer is not enough to read, the receive request is saved by the UART driver. When the new data arrives, the receive request is serviced first. When all data is received, the UART driver notifies the upper layer through a callback function and passes the status parameter kStatus_UART_RxIdle. For example, the upper layer needs 10 bytes but there are only 5 bytes in the ring buffer. The 5 bytes are copied to the xfer->data and this function returns with the parameter receivedBytes set to 5. For the left 5 bytes, newly arrived data is saved from the xfer->data[5]. When 5 bytes are received, the UART driver notifies the upper layer. If the RX ring buffer is not enabled, this function enables the RX and RX interrupt to receive data to the xfer->data. When all data is received, the upper layer is notified.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.
xfer – UART transfer structure, see uart_transfer_t.
receivedBytes – Bytes received from the ring buffer directly.

Return values:

kStatus_Success – Successfully queue the transfer into transmit queue.
kStatus_UART_RxBusy – Previous receive request is not finished.
kStatus_InvalidArgument – Invalid argument.

void UART_TransferAbortReceive(UART_Type *base, uart_handle_t *handle)

Aborts the interrupt-driven data receiving.

This function aborts the interrupt-driven data receiving. The user can get the remainBytes to know how many bytes are not received yet.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.

status_t UART_TransferGetReceiveCount(UART_Type *base, uart_handle_t *handle, uint32_t *count)

Gets the number of bytes that have been received.

This function gets the number of bytes that have been received.

Parameters:

base – UART peripheral base address.
handle – UART handle pointer.
count – Receive bytes count.

Return values:

kStatus_NoTransferInProgress – No receive in progress.
kStatus_InvalidArgument – Parameter is invalid.
kStatus_Success – Get successfully through the parameter count;

status_t UART_EnableTxFIFO(UART_Type *base, bool enable)

Enables or disables the UART Tx FIFO.

This function enables or disables the UART Tx FIFO.

param base UART peripheral base address. param enable true to enable, false to disable. retval kStatus_Success Successfully turn on or turn off Tx FIFO. retval kStatus_Fail Fail to turn on or turn off Tx FIFO.

status_t UART_EnableRxFIFO(UART_Type *base, bool enable)

Enables or disables the UART Rx FIFO.

This function enables or disables the UART Rx FIFO.

param base UART peripheral base address. param enable true to enable, false to disable. retval kStatus_Success Successfully turn on or turn off Rx FIFO. retval kStatus_Fail Fail to turn on or turn off Rx FIFO.

static inline void UART_SetRxFifoWatermark(UART_Type *base, uint8_t water)

Sets the rx FIFO watermark.

Parameters:

base – UART peripheral base address.
water – Rx FIFO watermark.

static inline void UART_SetTxFifoWatermark(UART_Type *base, uint8_t water)

Sets the tx FIFO watermark.

Parameters:

base – UART peripheral base address.
water – Tx FIFO watermark.

void UART_TransferHandleIRQ(UART_Type *base, void *irqHandle)

UART IRQ handle function.

This function handles the UART transmit and receive IRQ request.

Parameters:

base – UART peripheral base address.
irqHandle – UART handle pointer.

void UART_TransferHandleErrorIRQ(UART_Type *base, void *irqHandle)

UART Error IRQ handle function.

This function handles the UART error IRQ request.

Parameters:

base – UART peripheral base address.
irqHandle – UART handle pointer.

FSL_UART_DRIVER_VERSION: UART driver version.

Error codes for the UART driver.

Values:

enumerator kStatus_UART_TxBusy: Transmitter is busy.

enumerator kStatus_UART_RxBusy: Receiver is busy.

enumerator kStatus_UART_TxIdle: UART transmitter is idle.

enumerator kStatus_UART_RxIdle: UART receiver is idle.

enumerator kStatus_UART_TxWatermarkTooLarge: TX FIFO watermark too large

enumerator kStatus_UART_RxWatermarkTooLarge: RX FIFO watermark too large

enumerator kStatus_UART_FlagCannotClearManually: UART flag can’t be manually cleared.

enumerator kStatus_UART_Error: Error happens on UART.

enumerator kStatus_UART_RxRingBufferOverrun: UART RX software ring buffer overrun.

enumerator kStatus_UART_RxHardwareOverrun: UART RX receiver overrun.

enumerator kStatus_UART_NoiseError: UART noise error.

enumerator kStatus_UART_FramingError: UART framing error.

enumerator kStatus_UART_ParityError: UART parity error.

enumerator kStatus_UART_BaudrateNotSupport: Baudrate is not support in current clock source

enumerator kStatus_UART_IdleLineDetected: UART IDLE line detected.

enumerator kStatus_UART_Timeout: UART times out.

enum _uart_parity_mode

UART parity mode.

Values:

enumerator kUART_ParityDisabled: Parity disabled

enumerator kUART_ParityEven: Parity enabled, type even, bit setting: PE|PT = 10

enumerator kUART_ParityOdd: Parity enabled, type odd, bit setting: PE|PT = 11

enum _uart_stop_bit_count

UART stop bit count.

Values:

enumerator kUART_OneStopBit: One stop bit

enumerator kUART_TwoStopBit: Two stop bits

enum _uart_idle_type_select

UART idle type select.

Values:

enumerator kUART_IdleTypeStartBit: Start counting after a valid start bit.

enumerator kUART_IdleTypeStopBit: Start counting after a stop bit.

enum _uart_interrupt_enable

UART interrupt configuration structure, default settings all disabled.

This structure contains the settings for all of the UART interrupt configurations.

Values:

enumerator kUART_LinBreakInterruptEnable: LIN break detect interrupt.

enumerator kUART_RxActiveEdgeInterruptEnable: RX active edge interrupt.

enumerator kUART_TxDataRegEmptyInterruptEnable: Transmit data register empty interrupt.

enumerator kUART_TransmissionCompleteInterruptEnable: Transmission complete interrupt.

enumerator kUART_RxDataRegFullInterruptEnable: Receiver data register full interrupt.

enumerator kUART_IdleLineInterruptEnable: Idle line interrupt.

enumerator kUART_RxOverrunInterruptEnable: Receiver overrun interrupt.

enumerator kUART_NoiseErrorInterruptEnable: Noise error flag interrupt.

enumerator kUART_FramingErrorInterruptEnable: Framing error flag interrupt.

enumerator kUART_ParityErrorInterruptEnable: Parity error flag interrupt.

enumerator kUART_RxFifoOverflowInterruptEnable: RX FIFO overflow interrupt.

enumerator kUART_TxFifoOverflowInterruptEnable: TX FIFO overflow interrupt.

enumerator kUART_RxFifoUnderflowInterruptEnable: RX FIFO underflow interrupt.

enumerator kUART_AllInterruptsEnable

UART status flags.

This provides constants for the UART status flags for use in the UART functions.

Values:

enumerator kUART_TxDataRegEmptyFlag: TX data register empty flag.

enumerator kUART_TransmissionCompleteFlag: Transmission complete flag.

enumerator kUART_RxDataRegFullFlag: RX data register full flag.

enumerator kUART_IdleLineFlag: Idle line detect flag.

enumerator kUART_RxOverrunFlag: RX overrun flag.

enumerator kUART_NoiseErrorFlag: RX takes 3 samples of each received bit. If any of these samples differ, noise flag sets

enumerator kUART_FramingErrorFlag: Frame error flag, sets if logic 0 was detected where stop bit expected

enumerator kUART_ParityErrorFlag: If parity enabled, sets upon parity error detection

enumerator kUART_LinBreakFlag: LIN break detect interrupt flag, sets when LIN break char detected and LIN circuit enabled

enumerator kUART_RxActiveEdgeFlag: RX pin active edge interrupt flag,sets when active edge detected

enumerator kUART_RxActiveFlag: Receiver Active Flag (RAF), sets at beginning of valid start bit

enumerator kUART_NoiseErrorInRxDataRegFlag: Noisy bit, sets if noise detected.

enumerator kUART_ParityErrorInRxDataRegFlag: Parity bit, sets if parity error detected.

enumerator kUART_TxFifoEmptyFlag: TXEMPT bit, sets if TX buffer is empty

enumerator kUART_RxFifoEmptyFlag: RXEMPT bit, sets if RX buffer is empty

enumerator kUART_TxFifoOverflowFlag: TXOF bit, sets if TX buffer overflow occurred

enumerator kUART_RxFifoOverflowFlag: RXOF bit, sets if receive buffer overflow

enumerator kUART_RxFifoUnderflowFlag: RXUF bit, sets if receive buffer underflow

typedef enum _uart_parity_mode uart_parity_mode_t: UART parity mode.

typedef enum _uart_stop_bit_count uart_stop_bit_count_t: UART stop bit count.

typedef enum _uart_idle_type_select uart_idle_type_select_t: UART idle type select.

typedef struct _uart_config uart_config_t: UART configuration structure.

typedef struct _uart_transfer uart_transfer_t: UART transfer structure.

typedef struct _uart_handle uart_handle_t

typedef void (*uart_transfer_callback_t)(UART_Type *base, uart_handle_t *handle, status_t status, void *userData): UART transfer callback function.

typedef void (*uart_isr_t)(UART_Type *base, void *handle)

void *s_uartHandle[]: Pointers to uart handles for each instance.

const IRQn_Type s_uartIRQ[]

uart_isr_t s_uartIsr: Pointer to uart IRQ handler for each instance.

uint32_t UART_GetInstance(UART_Type *base)

Get the UART instance from peripheral base address.

Parameters:

base – UART peripheral base address.

Returns:

UART instance.

UART_RETRY_TIMES: Retry times for waiting flag.

struct _uart_config

#include <fsl_uart.h>

UART configuration structure.

Public Members

uint32_t baudRate_Bps: UART baud rate

uart_parity_mode_t parityMode: Parity mode, disabled (default), even, odd

uart_stop_bit_count_t stopBitCount: Number of stop bits, 1 stop bit (default) or 2 stop bits

uint8_t txFifoWatermark: TX FIFO watermark

uint8_t rxFifoWatermark: RX FIFO watermark

bool enableRxRTS: RX RTS enable

bool enableTxCTS: TX CTS enable

uart_idle_type_select_t idleType: IDLE type select.

bool enableTx: Enable TX

bool enableRx: Enable RX

struct _uart_transfer

#include <fsl_uart.h>

UART transfer structure.

Public Members

size_t dataSize: The byte count to be transfer.

struct _uart_handle

#include <fsl_uart.h>

UART handle structure.

Public Members

const uint8_t *volatile txData: Address of remaining data to send.

volatile size_t txDataSize: Size of the remaining data to send.

size_t txDataSizeAll: Size of the data to send out.

uint8_t *volatile rxData: Address of remaining data to receive.

volatile size_t rxDataSize: Size of the remaining data to receive.

size_t rxDataSizeAll: Size of the data to receive.

uint8_t *rxRingBuffer: Start address of the receiver ring buffer.

size_t rxRingBufferSize: Size of the ring buffer.

volatile uint16_t rxRingBufferHead: Index for the driver to store received data into ring buffer.

volatile uint16_t rxRingBufferTail: Index for the user to get data from the ring buffer.

uart_transfer_callback_t callback: Callback function.

void *userData: UART callback function parameter.

volatile uint8_t txState: TX transfer state.

volatile uint8_t rxState: RX transfer state

union __unnamed29__

Public Members

uint8_t *data: The buffer of data to be transfer.

uint8_t *rxData: The buffer to receive data.

const uint8_t *txData: The buffer of data to be sent.

VREF: Voltage Reference Driver

void VREF_Init(VREF_Type *base, const vref_config_t *config)

Enables the clock gate and configures the VREF module according to the configuration structure.

This function must be called before calling all other VREF driver functions, read/write registers, and configurations with user-defined settings. The example below shows how to set up vref_config_t parameters and how to call the VREF_Init function by passing in these parameters. This is an example.

vref_config_t vrefConfig;
vrefConfig.bufferMode = kVREF_ModeHighPowerBuffer;
vrefConfig.enableExternalVoltRef = false;
vrefConfig.enableLowRef = false;
VREF_Init(VREF, &vrefConfig);

Parameters:

base – VREF peripheral address.
config – Pointer to the configuration structure.

void VREF_Deinit(VREF_Type *base)

Stops and disables the clock for the VREF module.

This function should be called to shut down the module. This is an example.

vref_config_t vrefUserConfig;
VREF_Init(VREF);
VREF_GetDefaultConfig(&vrefUserConfig);
...
VREF_Deinit(VREF);

Parameters:

base – VREF peripheral address.

void VREF_GetDefaultConfig(vref_config_t *config)

Initializes the VREF configuration structure.

This function initializes the VREF configuration structure to default values. This is an example.

vrefConfig->bufferMode = kVREF_ModeHighPowerBuffer;
vrefConfig->enableExternalVoltRef = false;
vrefConfig->enableLowRef = false;

Parameters:

config – Pointer to the initialization structure.

void VREF_SetTrimVal(VREF_Type *base, uint8_t trimValue)

Sets a TRIM value for the reference voltage.

This function sets a TRIM value for the reference voltage. Note that the TRIM value maximum is 0x3F.

Parameters:

base – VREF peripheral address.
trimValue – Value of the trim register to set the output reference voltage (maximum 0x3F (6-bit)).

static inline uint8_t VREF_GetTrimVal(VREF_Type *base)

Reads the value of the TRIM meaning output voltage.

This function gets the TRIM value from the TRM register.

Parameters:

base – VREF peripheral address.

Returns:

Six-bit value of trim setting.

void VREF_SetTrim2V1Val(VREF_Type *base, uint8_t trimValue)

Sets a TRIM value for the reference voltage (2V1).

This function sets a TRIM value for the reference voltage (2V1). Note that the TRIM value maximum is 0x3F.

Parameters:

base – VREF peripheral address.
trimValue – Value of the trim register to set the output reference voltage (maximum 0x3F (6-bit)).

static inline uint8_t VREF_GetTrim2V1Val(VREF_Type *base)

Reads the value of the TRIM meaning output voltage (2V1).

This function gets the TRIM value from the VREF_TRM4 register.

Parameters:

base – VREF peripheral address.

Returns:

Six-bit value of trim setting.

void VREF_SetLowReferenceTrimVal(VREF_Type *base, uint8_t trimValue)

Sets the TRIM value for the low voltage reference.

This function sets the TRIM value for low reference voltage. Note the following.

The TRIM value maximum is 0x05U
The values 111b and 110b are not valid/allowed.

Parameters:

base – VREF peripheral address.
trimValue – Value of the trim register to set output low reference voltage (maximum 0x05U (3-bit)).

static inline uint8_t VREF_GetLowReferenceTrimVal(VREF_Type *base)

Reads the value of the TRIM meaning output voltage.

This function gets the TRIM value from the VREFL_TRM register.

Parameters:

base – VREF peripheral address.

Returns:

Three-bit value of the trim setting.

FSL_VREF_DRIVER_VERSION: Version 2.1.2.

enum _vref_buffer_mode

VREF modes.

Values:

enumerator kVREF_ModeBandgapOnly: Bandgap on only, for stabilization and startup

enumerator kVREF_ModeHighPowerBuffer: High-power buffer mode enabled

enumerator kVREF_ModeLowPowerBuffer: Low-power buffer mode enabled

typedef enum _vref_buffer_mode vref_buffer_mode_t: VREF modes.

typedef struct _vref_config vref_config_t: The description structure for the VREF module.

VREF_SC_MODE_LV

VREF_SC_REGEN

VREF_SC_VREFEN

VREF_SC_ICOMPEN

VREF_SC_REGEN_MASK

VREF_SC_VREFST_MASK

VREF_SC_VREFEN_MASK

VREF_SC_MODE_LV_MASK

VREF_SC_ICOMPEN_MASK

TRM

VREF_TRM_TRIM

VREF_TRM_CHOPEN_MASK

VREF_TRM_TRIM_MASK

VREF_TRM_CHOPEN_SHIFT

VREF_TRM_TRIM_SHIFT

VREF_SC_MODE_LV_SHIFT

VREF_SC_REGEN_SHIFT

VREF_SC_VREFST_SHIFT

VREF_SC_ICOMPEN_SHIFT

struct _vref_config

#include <fsl_vref.h>

The description structure for the VREF module.

Public Members

vref_buffer_mode_t bufferMode: Buffer mode selection

bool enableLowRef: Set VREFL (0.4 V) reference buffer enable or disable

bool enableExternalVoltRef: Select external voltage reference or not (internal)

bool enable2V1VoltRef: Enable Internal Voltage Reference (2.1V)