Overview

Data Structures
struct	qspi_dqs_config_t
	DQS configure features. More...

struct	qspi_flash_timing_t
	Flash timing configuration. More...

struct	qspi_config_t
	QSPI configuration structure. More...

struct	qspi_flash_config_t
	External flash configuration items. More...

struct	qspi_transfer_t
	Transfer structure for QSPI. More...

struct	ip_command_config_t
	16-bit access reg for IPCR register More...

Macros
#define	QSPI_LUT_SEQ(cmd0, pad0, op0, cmd1, pad1, op1)
	Macro functions for LUT table.

#define	QSPI_CMD (0x1U)
	Macro for QSPI LUT command.

#define	QSPI_PAD_1 (0x0U)
	Macro for QSPI PAD.

Enumerations
enum	_status_t { kStatus_QSPI_Idle = MAKE_STATUS(kStatusGroup_QSPI, 0), kStatus_QSPI_Busy = MAKE_STATUS(kStatusGroup_QSPI, 1), kStatus_QSPI_Error = MAKE_STATUS(kStatusGroup_QSPI, 2) }
	Status structure of QSPI. More...

enum	qspi_read_area_t { kQSPI_ReadAHB = 0x0U, kQSPI_ReadIP }
	QSPI read data area, from IP FIFO or AHB buffer. More...

enum	qspi_command_seq_t { kQSPI_IPSeq = QuadSPI_SPTRCLR_IPPTRC_MASK, kQSPI_BufferSeq = QuadSPI_SPTRCLR_BFPTRC_MASK }
	QSPI command sequence type. More...

enum	qspi_fifo_t { kQSPI_TxFifo = QuadSPI_MCR_CLR_TXF_MASK, kQSPI_RxFifo = QuadSPI_MCR_CLR_RXF_MASK, kQSPI_AllFifo = QuadSPI_MCR_CLR_TXF_MASK \| QuadSPI_MCR_CLR_RXF_MASK }
	QSPI buffer type. More...

enum	qspi_endianness_t { kQSPI_64BigEndian = 0x0U, kQSPI_32LittleEndian, kQSPI_32BigEndian, kQSPI_64LittleEndian }
	QSPI transfer endianess. More...

enum	_qspi_error_flags { kQSPI_DataLearningFail = (int)QuadSPI_FR_DLPFF_MASK, kQSPI_TxBufferFill = QuadSPI_FR_TBFF_MASK, kQSPI_TxBufferUnderrun = QuadSPI_FR_TBUF_MASK, kQSPI_IllegalInstruction = QuadSPI_FR_ILLINE_MASK, kQSPI_RxBufferOverflow = QuadSPI_FR_RBOF_MASK, kQSPI_RxBufferDrain = QuadSPI_FR_RBDF_MASK, kQSPI_AHBSequenceError = QuadSPI_FR_ABSEF_MASK, kQSPI_AHBIllegalTransaction = QuadSPI_FR_AITEF_MASK, kQSPI_AHBIllegalBurstSize = QuadSPI_FR_AIBSEF_MASK, kQSPI_AHBBufferOverflow = QuadSPI_FR_ABOF_MASK, kQSPI_IPCommandTriggerDuringAHBAccess = QuadSPI_FR_IPAEF_MASK, kQSPI_IPCommandTriggerDuringIPAccess = QuadSPI_FR_IPIEF_MASK, kQSPI_IPCommandTriggerDuringAHBGrant = QuadSPI_FR_IPGEF_MASK, kQSPI_IPCommandTransactionFinished = QuadSPI_FR_TFF_MASK, kQSPI_FlagAll = (int)0x8C83F8D1U }
	QSPI error flags. More...

enum	_qspi_flags { kQSPI_DataLearningSamplePoint = (int)QuadSPI_SR_DLPSMP_MASK, kQSPI_TxBufferFull = QuadSPI_SR_TXFULL_MASK, kQSPI_TxDMA = QuadSPI_SR_TXDMA_MASK, kQSPI_TxWatermark = QuadSPI_SR_TXWA_MASK, kQSPI_TxBufferEnoughData = QuadSPI_SR_TXEDA_MASK, kQSPI_RxDMA = QuadSPI_SR_RXDMA_MASK, kQSPI_RxBufferFull = QuadSPI_SR_RXFULL_MASK, kQSPI_RxWatermark = QuadSPI_SR_RXWE_MASK, kQSPI_AHB3BufferFull = QuadSPI_SR_AHB3FUL_MASK, kQSPI_AHB2BufferFull = QuadSPI_SR_AHB2FUL_MASK, kQSPI_AHB1BufferFull = QuadSPI_SR_AHB1FUL_MASK, kQSPI_AHB0BufferFull = QuadSPI_SR_AHB0FUL_MASK, kQSPI_AHB3BufferNotEmpty = QuadSPI_SR_AHB3NE_MASK, kQSPI_AHB2BufferNotEmpty = QuadSPI_SR_AHB2NE_MASK, kQSPI_AHB1BufferNotEmpty = QuadSPI_SR_AHB1NE_MASK, kQSPI_AHB0BufferNotEmpty = QuadSPI_SR_AHB0NE_MASK, kQSPI_AHBTransactionPending = QuadSPI_SR_AHBTRN_MASK, kQSPI_AHBCommandPriorityGranted = QuadSPI_SR_AHBGNT_MASK, kQSPI_AHBAccess = QuadSPI_SR_AHB_ACC_MASK, kQSPI_IPAccess = QuadSPI_SR_IP_ACC_MASK, kQSPI_Busy = QuadSPI_SR_BUSY_MASK, kQSPI_StateAll = (int)0xEF897FE7U }
	QSPI state bit. More...

enum	_qspi_interrupt_enable { kQSPI_DataLearningFailInterruptEnable, kQSPI_TxBufferFillInterruptEnable = QuadSPI_RSER_TBFIE_MASK, kQSPI_TxBufferUnderrunInterruptEnable = QuadSPI_RSER_TBUIE_MASK, kQSPI_IllegalInstructionInterruptEnable, kQSPI_RxBufferOverflowInterruptEnable = QuadSPI_RSER_RBOIE_MASK, kQSPI_RxBufferDrainInterruptEnable = QuadSPI_RSER_RBDIE_MASK, kQSPI_AHBSequenceErrorInterruptEnable = QuadSPI_RSER_ABSEIE_MASK, kQSPI_AHBIllegalTransactionInterruptEnable, kQSPI_AHBIllegalBurstSizeInterruptEnable, kQSPI_AHBBufferOverflowInterruptEnable = QuadSPI_RSER_ABOIE_MASK, kQSPI_IPCommandTriggerDuringAHBAccessInterruptEnable, kQSPI_IPCommandTriggerDuringIPAccessInterruptEnable, kQSPI_IPCommandTriggerDuringAHBGrantInterruptEnable, kQSPI_IPCommandTransactionFinishedInterruptEnable, kQSPI_AllInterruptEnable = (int)0x8C83F8D1U }
	QSPI interrupt enable. More...

enum	_qspi_dma_enable { kQSPI_TxBufferFillDMAEnable = QuadSPI_RSER_TBFDE_MASK, kQSPI_RxBufferDrainDMAEnable = QuadSPI_RSER_RBDDE_MASK, kQSPI_AllDDMAEnable = QuadSPI_RSER_TBFDE_MASK \| QuadSPI_RSER_RBDDE_MASK }
	QSPI DMA request flag. More...

enum	qspi_dqs_phrase_shift_t { kQSPI_DQSNoPhraseShift = 0x0U, kQSPI_DQSPhraseShift45Degree, kQSPI_DQSPhraseShift90Degree, kQSPI_DQSPhraseShift135Degree }
	Phrase shift number for DQS mode. More...

enum	qspi_dqs_read_sample_clock_t { kQSPI_ReadSampleClkInternalLoopback = 0x0U, kQSPI_ReadSampleClkLoopbackFromDqsPad = 0x1U, kQSPI_ReadSampleClkExternalInputFromDqsPad = 0x2U }
	Qspi read sampling option. More...

Driver version
#define	FSL_QSPI_DRIVER_VERSION (MAKE_VERSION(2, 2, 0))
	QSPI driver version 2.2.0. More...

Initialization and deinitialization
uint32_t	QSPI_GetInstance (QuadSPI_Type *base)
	Get the instance number for QSPI. More...

void	QSPI_Init (QuadSPI_Type base, qspi_config_t config, uint32_t srcClock_Hz)
	Initializes the QSPI module and internal state. More...

void	QSPI_GetDefaultQspiConfig (qspi_config_t *config)
	Gets default settings for QSPI. More...

void	QSPI_Deinit (QuadSPI_Type *base)
	Deinitializes the QSPI module. More...

void	QSPI_SetFlashConfig (QuadSPI_Type base, qspi_flash_config_t config)
	Configures the serial flash parameter. More...

void	QSPI_SetDqsConfig (QuadSPI_Type base, qspi_dqs_config_t config)
	Configures the serial flash DQS parameter. More...

void	QSPI_SoftwareReset (QuadSPI_Type *base)
	Software reset for the QSPI logic. More...

static void	QSPI_Enable (QuadSPI_Type *base, bool enable)
	Enables or disables the QSPI module. More...

Status
static uint32_t	QSPI_GetStatusFlags (QuadSPI_Type *base)
	Gets the state value of QSPI. More...

static uint32_t	QSPI_GetErrorStatusFlags (QuadSPI_Type *base)
	Gets QSPI error status flags. More...

static void	QSPI_ClearErrorFlag (QuadSPI_Type *base, uint32_t mask)
	Clears the QSPI error flags. More...

Interrupts
static void	QSPI_EnableInterrupts (QuadSPI_Type *base, uint32_t mask)
	Enables the QSPI interrupts. More...

static void	QSPI_DisableInterrupts (QuadSPI_Type *base, uint32_t mask)
	Disables the QSPI interrupts. More...

DMA Control
static void	QSPI_EnableDMA (QuadSPI_Type *base, uint32_t mask, bool enable)
	Enables the QSPI DMA source. More...

static uint32_t	QSPI_GetTxDataRegisterAddress (QuadSPI_Type *base)
	Gets the Tx data register address. More...

uint32_t	QSPI_GetRxDataRegisterAddress (QuadSPI_Type *base)
	Gets the Rx data register address used for DMA operation. More...

Bus Operations
static void	QSPI_SetIPCommandAddress (QuadSPI_Type *base, uint32_t addr)
	Sets the IP command address. More...

static void	QSPI_SetIPCommandSize (QuadSPI_Type *base, uint32_t size)
	Sets the IP command size. More...

void	QSPI_ExecuteIPCommand (QuadSPI_Type *base, uint32_t index)
	Executes IP commands located in LUT table. More...

void	QSPI_ExecuteAHBCommand (QuadSPI_Type *base, uint32_t index)
	Executes AHB commands located in LUT table. More...

void	QSPI_UpdateLUT (QuadSPI_Type base, uint32_t index, uint32_t cmd)
	Updates the LUT table. More...

static void	QSPI_ClearFifo (QuadSPI_Type *base, uint32_t mask)
	Clears the QSPI FIFO logic. More...

static void	QSPI_ClearCommandSequence (QuadSPI_Type *base, qspi_command_seq_t seq)
	@ brief Clears the command sequence for the IP/buffer command. More...

static void	QSPI_EnableDDRMode (QuadSPI_Type *base, bool enable)
	Enable or disable DDR mode. More...

void	QSPI_SetReadDataArea (QuadSPI_Type *base, qspi_read_area_t area)
	@ brief Set the RX buffer readout area. More...

void	QSPI_WriteBlocking (QuadSPI_Type base, uint32_t buffer, size_t size)
	Sends a buffer of data bytes using a blocking method. More...

static void	QSPI_WriteData (QuadSPI_Type *base, uint32_t data)
	Writes data into FIFO. More...

void	QSPI_ReadBlocking (QuadSPI_Type base, uint32_t buffer, size_t size)
	Receives a buffer of data bytes using a blocking method. More...

uint32_t	QSPI_ReadData (QuadSPI_Type *base)
	Receives data from data FIFO. More...

Transactional
static void	QSPI_TransferSendBlocking (QuadSPI_Type base, qspi_transfer_t xfer)
	Writes data to the QSPI transmit buffer. More...

static void	QSPI_TransferReceiveBlocking (QuadSPI_Type base, qspi_transfer_t xfer)
	Reads data from the QSPI receive buffer in polling way. More...

Data Structure Documentation

struct qspi_dqs_config_t

Data Fields
uint32_t	portADelayTapNum
	Delay chain tap number selection for QSPI port A DQS.

qspi_dqs_phrase_shift_t	shift
	Phase shift for internal DQS generation.

qspi_dqs_read_sample_clock_t	rxSampleClock
	Read sample clock for Dqs. More...

bool	enableDQSClkInverse
	Enable inverse clock for internal DQS generation.

Field Documentation

qspi_dqs_read_sample_clock_t qspi_dqs_config_t::rxSampleClock

struct qspi_flash_timing_t

Data Fields
uint32_t	dataHoldTime
	Serial flash data in hold time.

uint32_t	CSHoldTime
	Serial flash CS hold time in terms of serial flash clock cycles.

uint32_t	CSSetupTime
	Serial flash CS setup time in terms of serial flash clock cycles.

struct qspi_config_t

Data Fields
uint32_t	clockSource
	Clock source for QSPI module.

uint32_t	baudRate
	Serial flash clock baud rate.

uint8_t	txWatermark
	QSPI transmit watermark value.

uint8_t	rxWatermark
	QSPI receive watermark value. More...

uint32_t	AHBbufferSize [FSL_FEATURE_QSPI_AHB_BUFFER_COUNT]
	AHB buffer size. More...

uint8_t	AHBbufferMaster [FSL_FEATURE_QSPI_AHB_BUFFER_COUNT]
	AHB buffer master. More...

bool	enableAHBbuffer3AllMaster
	Is AHB buffer3 for all master. More...

qspi_read_area_t	area
	Which area Rx data readout.

bool	enableQspi
	Enable QSPI after initialization.

Field Documentation

uint8_t qspi_config_t::rxWatermark

uint32_t qspi_config_t::AHBbufferSize[FSL_FEATURE_QSPI_AHB_BUFFER_COUNT]

uint8_t qspi_config_t::AHBbufferMaster[FSL_FEATURE_QSPI_AHB_BUFFER_COUNT]

bool qspi_config_t::enableAHBbuffer3AllMaster

struct qspi_flash_config_t

Data Fields
uint32_t	flashA1Size
	Flash A1 size.

uint32_t	flashA2Size
	Flash A2 size.

uint32_t	lookuptable [FSL_FEATURE_QSPI_LUT_DEPTH]
	Flash command in LUT.

uint32_t	dataHoldTime
	Data line hold time. More...

uint32_t	CSHoldTime
	CS line hold time.

uint32_t	CSSetupTime
	CS line setup time.

uint32_t	cloumnspace
	Column space size.

uint32_t	dataLearnValue
	Data Learn value if enable data learn.

qspi_endianness_t	endian
	Flash data endianess. More...

bool	enableWordAddress
	If enable word address. More...

Field Documentation

uint32_t qspi_flash_config_t::dataHoldTime

qspi_endianness_t qspi_flash_config_t::endian

bool qspi_flash_config_t::enableWordAddress

struct qspi_transfer_t

Data Fields
uint32_t *	data
	Pointer to data to transmit.

size_t	dataSize
	Bytes to be transmit.

struct ip_command_config_t

Macro Definition Documentation

#define FSL_QSPI_DRIVER_VERSION (MAKE_VERSION(2, 2, 0))

Enumeration Type Documentation

enum _status_t

Enumerator
kStatus_QSPI_Idle	QSPI is in idle state.
kStatus_QSPI_Busy	QSPI is busy.
kStatus_QSPI_Error	Error occurred during QSPI transfer.

enum qspi_read_area_t

Enumerator
kQSPI_ReadAHB	QSPI read from AHB buffer.
kQSPI_ReadIP	QSPI read from IP FIFO.

enum qspi_command_seq_t

Enumerator
kQSPI_IPSeq	IP command sequence.
kQSPI_BufferSeq	Buffer command sequence.

enum qspi_fifo_t

Enumerator
kQSPI_TxFifo	QSPI Tx FIFO.
kQSPI_RxFifo	QSPI Rx FIFO.
kQSPI_AllFifo	QSPI all FIFO, including Tx and Rx.

enum qspi_endianness_t

Enumerator
kQSPI_64BigEndian	64 bits big endian
kQSPI_32LittleEndian	32 bit little endian
kQSPI_32BigEndian	32 bit big endian
kQSPI_64LittleEndian	64 bit little endian

enum _qspi_error_flags

Enumerator
kQSPI_DataLearningFail	Data learning pattern failure flag.
kQSPI_TxBufferFill	Tx buffer fill flag.
kQSPI_TxBufferUnderrun	Tx buffer underrun flag.
kQSPI_IllegalInstruction	Illegal instruction error flag.
kQSPI_RxBufferOverflow	Rx buffer overflow flag.
kQSPI_RxBufferDrain	Rx buffer drain flag.
kQSPI_AHBSequenceError	AHB sequence error flag.
kQSPI_AHBIllegalTransaction	AHB illegal transaction error flag.
kQSPI_AHBIllegalBurstSize	AHB illegal burst error flag.
kQSPI_AHBBufferOverflow	AHB buffer overflow flag.
kQSPI_IPCommandTriggerDuringAHBAccess	IP command trigger during AHB access error.
kQSPI_IPCommandTriggerDuringIPAccess	IP command trigger cannot be executed.
kQSPI_IPCommandTriggerDuringAHBGrant	IP command trigger during AHB grant error.
kQSPI_IPCommandTransactionFinished	IP command transaction finished flag.
kQSPI_FlagAll	All error flag.

enum _qspi_flags

Enumerator
kQSPI_DataLearningSamplePoint	Data learning sample point.
kQSPI_TxBufferFull	Tx buffer full flag.
kQSPI_TxDMA	Tx DMA is requested or running.
kQSPI_TxWatermark	Tx buffer watermark available.
kQSPI_TxBufferEnoughData	Tx buffer enough data available.
kQSPI_RxDMA	Rx DMA is requesting or running.
kQSPI_RxBufferFull	Rx buffer full.
kQSPI_RxWatermark	Rx buffer watermark exceeded.
kQSPI_AHB3BufferFull	AHB buffer 3 full.
kQSPI_AHB2BufferFull	AHB buffer 2 full.
kQSPI_AHB1BufferFull	AHB buffer 1 full.
kQSPI_AHB0BufferFull	AHB buffer 0 full.
kQSPI_AHB3BufferNotEmpty	AHB buffer 3 not empty.
kQSPI_AHB2BufferNotEmpty	AHB buffer 2 not empty.
kQSPI_AHB1BufferNotEmpty	AHB buffer 1 not empty.
kQSPI_AHB0BufferNotEmpty	AHB buffer 0 not empty.
kQSPI_AHBTransactionPending	AHB access transaction pending.
kQSPI_AHBCommandPriorityGranted	AHB command priority granted.
kQSPI_AHBAccess	AHB access.
kQSPI_IPAccess	IP access.
kQSPI_Busy	Module busy.
kQSPI_StateAll	All flags.

enum _qspi_interrupt_enable

Enumerator
kQSPI_DataLearningFailInterruptEnable	Data learning pattern failure interrupt enable.
kQSPI_TxBufferFillInterruptEnable	Tx buffer fill interrupt enable.
kQSPI_TxBufferUnderrunInterruptEnable	Tx buffer underrun interrupt enable.
kQSPI_IllegalInstructionInterruptEnable	Illegal instruction error interrupt enable.
kQSPI_RxBufferOverflowInterruptEnable	Rx buffer overflow interrupt enable.
kQSPI_RxBufferDrainInterruptEnable	Rx buffer drain interrupt enable.
kQSPI_AHBSequenceErrorInterruptEnable	AHB sequence error interrupt enable.
kQSPI_AHBIllegalTransactionInterruptEnable	AHB illegal transaction error interrupt enable.
kQSPI_AHBIllegalBurstSizeInterruptEnable	AHB illegal burst error interrupt enable.
kQSPI_AHBBufferOverflowInterruptEnable	AHB buffer overflow interrupt enable.
kQSPI_IPCommandTriggerDuringAHBAccessInterruptEnable	IP command trigger during AHB access error.
kQSPI_IPCommandTriggerDuringIPAccessInterruptEnable	IP command trigger cannot be executed.
kQSPI_IPCommandTriggerDuringAHBGrantInterruptEnable	IP command trigger during AHB grant error.
kQSPI_IPCommandTransactionFinishedInterruptEnable	IP command transaction finished interrupt enable.
kQSPI_AllInterruptEnable	All error interrupt enable.

enum _qspi_dma_enable

Enumerator
kQSPI_TxBufferFillDMAEnable	Tx buffer fill DMA.
kQSPI_RxBufferDrainDMAEnable	Rx buffer drain DMA.
kQSPI_AllDDMAEnable	All DMA source.

enum qspi_dqs_phrase_shift_t

Enumerator
kQSPI_DQSNoPhraseShift	No phase shift.
kQSPI_DQSPhraseShift45Degree	Select 45 degree phase shift.
kQSPI_DQSPhraseShift90Degree	Select 90 degree phase shift.
kQSPI_DQSPhraseShift135Degree	Select 135 degree phase shift.

enum qspi_dqs_read_sample_clock_t

Enumerator
kQSPI_ReadSampleClkInternalLoopback	Read sample clock adopts internal loopback mode.
kQSPI_ReadSampleClkLoopbackFromDqsPad	Dummy Read strobe generated by QSPI Controller and loopback from DQS pad.
kQSPI_ReadSampleClkExternalInputFromDqsPad	Flash provided Read strobe and input from DQS pad.

Function Documentation

uint32_t QSPI_GetInstance ( QuadSPI_Type * base )

Parameters

base	QSPI base pointer.

void QSPI_Init	(	QuadSPI_Type *	base,
		qspi_config_t *	config,
		uint32_t	srcClock_Hz
	)

This function enables the clock for QSPI and also configures the QSPI with the input configure parameters. Users should call this function before any QSPI operations.

Parameters

base	Pointer to QuadSPI Type.
config	QSPI configure structure.
srcClock_Hz	QSPI source clock frequency in Hz.

void QSPI_GetDefaultQspiConfig ( qspi_config_t * config )

Parameters

config QSPI configuration structure.

void QSPI_Deinit ( QuadSPI_Type * base )

Clears the QSPI state and QSPI module registers.

Parameters

base	Pointer to QuadSPI Type.

void QSPI_SetFlashConfig	(	QuadSPI_Type *	base,
		qspi_flash_config_t *	config
	)

This function configures the serial flash relevant parameters, such as the size, command, and so on. The flash configuration value cannot have a default value. The user needs to configure it according to the QSPI features.

Parameters

base	Pointer to QuadSPI Type.
config	Flash configuration parameters.

void QSPI_SetDqsConfig	(	QuadSPI_Type *	base,
		qspi_dqs_config_t *	config
	)

This function configures the serial flash DQS relevant parameters, such as the delay chain tap number, . DQS shift phase, whether need to inverse and the rxc sample clock selection.

Parameters

base	Pointer to QuadSPI Type.
config	Dqs configuration parameters.

void QSPI_SoftwareReset ( QuadSPI_Type * base )

This function sets the software reset flags for both AHB and buffer domain and resets both AHB buffer and also IP FIFOs.

Parameters

base	Pointer to QuadSPI Type.

static void QSPI_Enable	(	QuadSPI_Type *	base,
		bool	enable
	)

inlinestatic

Parameters

base	Pointer to QuadSPI Type.
enable	True means enable QSPI, false means disable.

static uint32_t QSPI_GetStatusFlags ( QuadSPI_Type * base )

inlinestatic

Parameters

base	Pointer to QuadSPI Type.

Returns: status flag, use status flag to AND _qspi_flags could get the related status.

static uint32_t QSPI_GetErrorStatusFlags ( QuadSPI_Type * base )

inlinestatic

Parameters

base	Pointer to QuadSPI Type.

Returns: status flag, use status flag to AND _qspi_error_flags could get the related status.

static void QSPI_ClearErrorFlag	(	QuadSPI_Type *	base,
		uint32_t	mask
	)

inlinestatic

Parameters

base	Pointer to QuadSPI Type.
mask	Which kind of QSPI flags to be cleared, a combination of _qspi_error_flags.

static void QSPI_EnableInterrupts	(	QuadSPI_Type *	base,
		uint32_t	mask
	)

inlinestatic

Parameters

base	Pointer to QuadSPI Type.
mask	QSPI interrupt source.

static void QSPI_DisableInterrupts	(	QuadSPI_Type *	base,
		uint32_t	mask
	)

inlinestatic

Parameters

base	Pointer to QuadSPI Type.
mask	QSPI interrupt source.

static void QSPI_EnableDMA	(	QuadSPI_Type *	base,
		uint32_t	mask,
		bool	enable
	)

inlinestatic

Parameters

base	Pointer to QuadSPI Type.
mask	QSPI DMA source.
enable	True means enable DMA, false means disable.

static uint32_t QSPI_GetTxDataRegisterAddress ( QuadSPI_Type * base )

inlinestatic

It is used for DMA operation.

Parameters

base	Pointer to QuadSPI Type.

Returns: QSPI Tx data register address.

uint32_t QSPI_GetRxDataRegisterAddress ( QuadSPI_Type * base )

This function returns the Rx data register address or Rx buffer address according to the Rx read area settings.

Parameters

base	Pointer to QuadSPI Type.

Returns: QSPI Rx data register address.

static void QSPI_SetIPCommandAddress	(	QuadSPI_Type *	base,
		uint32_t	addr
	)

inlinestatic

Parameters

base	Pointer to QuadSPI Type.
addr	IP command address.

static void QSPI_SetIPCommandSize	(	QuadSPI_Type *	base,
		uint32_t	size
	)

inlinestatic

Parameters

base	Pointer to QuadSPI Type.
size	IP command size.

void QSPI_ExecuteIPCommand	(	QuadSPI_Type *	base,
		uint32_t	index
	)

Parameters

base	Pointer to QuadSPI Type.
index	IP command located in which LUT table index.

void QSPI_ExecuteAHBCommand	(	QuadSPI_Type *	base,
		uint32_t	index
	)

Parameters

base	Pointer to QuadSPI Type.
index	AHB command located in which LUT table index.

void QSPI_UpdateLUT	(	QuadSPI_Type *	base,
		uint32_t	index,
		uint32_t *	cmd
	)

Parameters

base	Pointer to QuadSPI Type.
index	Which LUT index needs to be located. It should be an integer divided by 4.
cmd	Command sequence array.

static void QSPI_ClearFifo	(	QuadSPI_Type *	base,
		uint32_t	mask
	)

inlinestatic

Parameters

base	Pointer to QuadSPI Type.
mask	Which kind of QSPI FIFO to be cleared.

static void QSPI_ClearCommandSequence	(	QuadSPI_Type *	base,
		qspi_command_seq_t	seq
	)

inlinestatic

This function can reset the command sequence.

Parameters

base	QSPI base address.
seq	Which command sequence need to reset, IP command, buffer command or both.

static void QSPI_EnableDDRMode	(	QuadSPI_Type *	base,
		bool	enable
	)

inlinestatic

Parameters

base	QSPI base pointer
eanble	True means enable DDR mode, false means disable DDR mode.

void QSPI_SetReadDataArea	(	QuadSPI_Type *	base,
		qspi_read_area_t	area
	)

This function can set the RX buffer readout, from AHB bus or IP Bus.

Parameters

base	QSPI base address.
area	QSPI Rx buffer readout area. AHB bus buffer or IP bus buffer.

void QSPI_WriteBlocking	(	QuadSPI_Type *	base,
		uint32_t *	buffer,
		size_t	size
	)

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

Parameters

base	QSPI base pointer
buffer	The data bytes to send
size	The number of data bytes to send

static void QSPI_WriteData	(	QuadSPI_Type *	base,
		uint32_t	data
	)

inlinestatic

Parameters

base	QSPI base pointer
data	The data bytes to send

void QSPI_ReadBlocking	(	QuadSPI_Type *	base,
		uint32_t *	buffer,
		size_t	size
	)

Note: This function blocks via polling until all bytes have been sent. Users shall notice that this receive size shall not bigger than 64 bytes. As this interface is used to read flash status registers. For flash contents read, please use AHB bus read, this is much more efficiency.

Parameters

base	QSPI base pointer
buffer	The data bytes to send
size	The number of data bytes to receive

uint32_t QSPI_ReadData ( QuadSPI_Type * base )

Parameters

base	QSPI base pointer

Returns: The data in the FIFO.

static void QSPI_TransferSendBlocking	(	QuadSPI_Type *	base,
		qspi_transfer_t *	xfer
	)

inlinestatic

This function writes a continuous data to the QSPI transmit FIFO. This function is a block function and can return only when finished. This function uses polling methods.

Parameters

base	Pointer to QuadSPI Type.
xfer	QSPI transfer structure.

static void QSPI_TransferReceiveBlocking	(	QuadSPI_Type *	base,
		qspi_transfer_t *	xfer
	)

inlinestatic

This function reads continuous data from the QSPI receive buffer/FIFO. This function is a blocking function and can return only when finished. This function uses polling methods. Users shall notice that this receive size shall not bigger than 64 bytes. As this interface is used to read flash status registers. For flash contents read, please use AHB bus read, this is much more efficiency.

Parameters

base	Pointer to QuadSPI Type.
xfer	QSPI transfer structure.

Overview

Data Structures

Macros

Enumerations

Driver version

Initialization and deinitialization

Status

Interrupts

DMA Control

Bus Operations

Transactional

Data Structure Documentation

Data Fields

Field Documentation

Data Fields

Data Fields

Field Documentation

Data Fields

Field Documentation

Data Fields

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation