Overview

Modules
	SPIFI DMA Driver

	SPIFI Driver

Data Structures
struct	spifi_command_t
	SPIFI command structure. More...

struct	spifi_config_t
	SPIFI region configuration structure. More...

struct	spifi_transfer_t
	Transfer structure for SPIFI. More...

struct	spifi_dma_handle_t
	SPIFI DMA transfer handle, users should not touch the content of the handle. More...

Typedefs
typedef void(*	spifi_dma_callback_t )(SPIFI_Type base, spifi_dma_handle_t handle, status_t status, void *userData)
	SPIFI DMA transfer callback function for finish and error.

Enumerations
enum	_status_t { kStatus_SPIFI_Idle = MAKE_STATUS(kStatusGroup_SPIFI, 0), kStatus_SPIFI_Busy = MAKE_STATUS(kStatusGroup_SPIFI, 1), kStatus_SPIFI_Error = MAKE_STATUS(kStatusGroup_SPIFI, 2) }
	Status structure of SPIFI. More...

enum	spifi_interrupt_enable_t { kSPIFI_CommandFinishInterruptEnable = SPIFI_CTRL_INTEN_MASK }
	SPIFI interrupt source. More...

enum	spifi_spi_mode_t { kSPIFI_SPISckLow = 0x0U, kSPIFI_SPISckHigh = 0x1U }
	SPIFI SPI mode select. More...

enum	spifi_dual_mode_t { kSPIFI_QuadMode = 0x0U, kSPIFI_DualMode = 0x1U }
	SPIFI dual mode select. More...

enum	spifi_data_direction_t { kSPIFI_DataInput = 0x0U, kSPIFI_DataOutput = 0x1U }
	SPIFI data direction. More...

enum	spifi_command_format_t { kSPIFI_CommandAllSerial = 0x0, kSPIFI_CommandDataQuad = 0x1U, kSPIFI_CommandOpcodeSerial = 0x2U, kSPIFI_CommandAllQuad = 0x3U }
	SPIFI command opcode format. More...

enum	spifi_command_type_t { kSPIFI_CommandOpcodeOnly = 0x1U, kSPIFI_CommandOpcodeAddrOneByte = 0x2U, kSPIFI_CommandOpcodeAddrTwoBytes = 0x3U, kSPIFI_CommandOpcodeAddrThreeBytes = 0x4U, kSPIFI_CommandOpcodeAddrFourBytes = 0x5U, kSPIFI_CommandNoOpcodeAddrThreeBytes = 0x6U, kSPIFI_CommandNoOpcodeAddrFourBytes = 0x7U }
	SPIFI command type. More...

enum	_spifi_status_flags { kSPIFI_MemoryCommandWriteFinished = SPIFI_STAT_MCINIT_MASK, kSPIFI_CommandWriteFinished = SPIFI_STAT_CMD_MASK, kSPIFI_InterruptRequest = SPIFI_STAT_INTRQ_MASK }
	SPIFI status flags. More...

Functions
static void	SPIFI_EnableDMA (SPIFI_Type *base, bool enable)
	Enable or disable DMA request for SPIFI. More...

static uint32_t	SPIFI_GetDataRegisterAddress (SPIFI_Type *base)
	Gets the SPIFI data register address. More...

static void	SPIFI_WriteData (SPIFI_Type *base, uint32_t data)
	Write a word data in address of SPIFI. More...

static void	SPIFI_WriteDataByte (SPIFI_Type *base, uint8_t data)
	Write a byte data in address of SPIFI. More...

void	SPIFI_WriteDataHalfword (SPIFI_Type *base, uint16_t data)
	Write a halfword data in address of SPIFI. More...

static uint32_t	SPIFI_ReadData (SPIFI_Type *base)
	Read data from serial flash. More...

static uint8_t	SPIFI_ReadDataByte (SPIFI_Type *base)
	Read a byte data from serial flash. More...

uint16_t	SPIFI_ReadDataHalfword (SPIFI_Type *base)
	Read a halfword data from serial flash. More...

Driver version
#define	FSL_SPIFI_DRIVER_VERSION (MAKE_VERSION(2, 0, 2))
	SPIFI driver version 2.0.1. More...

Initialization and deinitialization
void	SPIFI_Init (SPIFI_Type base, const spifi_config_t config)
	Initializes the SPIFI with the user configuration structure. More...

void	SPIFI_GetDefaultConfig (spifi_config_t *config)
	Get SPIFI default configure settings. More...

void	SPIFI_Deinit (SPIFI_Type *base)
	Deinitializes the SPIFI regions. More...

Basic Control Operations
void	SPIFI_SetCommand (SPIFI_Type base, spifi_command_t cmd)
	Set SPIFI flash command. More...

static void	SPIFI_SetCommandAddress (SPIFI_Type *base, uint32_t addr)
	Set SPIFI command address. More...

static void	SPIFI_SetIntermediateData (SPIFI_Type *base, uint32_t val)
	Set SPIFI intermediate data. More...

static void	SPIFI_SetCacheLimit (SPIFI_Type *base, uint32_t val)
	Set SPIFI Cache limit value. More...

static void	SPIFI_ResetCommand (SPIFI_Type *base)
	Reset the command field of SPIFI. More...

void	SPIFI_SetMemoryCommand (SPIFI_Type base, spifi_command_t cmd)
	Set SPIFI flash AHB read command. More...

static void	SPIFI_EnableInterrupt (SPIFI_Type *base, uint32_t mask)
	Enable SPIFI interrupt. More...

static void	SPIFI_DisableInterrupt (SPIFI_Type *base, uint32_t mask)
	Disable SPIFI interrupt. More...

Status
static uint32_t	SPIFI_GetStatusFlag (SPIFI_Type *base)
	Get the status of all interrupt flags for SPIFI. More...

DMA Transactional
void	SPIFI_TransferTxCreateHandleDMA (SPIFI_Type base, spifi_dma_handle_t handle, spifi_dma_callback_t callback, void userData, dma_handle_t dmaHandle)
	Initializes the SPIFI handle for send which is used in transactional functions and set the callback. More...

void	SPIFI_TransferRxCreateHandleDMA (SPIFI_Type base, spifi_dma_handle_t handle, spifi_dma_callback_t callback, void userData, dma_handle_t dmaHandle)
	Initializes the SPIFI handle for receive which is used in transactional functions and set the callback. More...

status_t	SPIFI_TransferSendDMA (SPIFI_Type base, spifi_dma_handle_t handle, spifi_transfer_t *xfer)
	Transfers SPIFI data using an DMA non-blocking method. More...

status_t	SPIFI_TransferReceiveDMA (SPIFI_Type base, spifi_dma_handle_t handle, spifi_transfer_t *xfer)
	Receives data using an DMA non-blocking method. More...

void	SPIFI_TransferAbortSendDMA (SPIFI_Type base, spifi_dma_handle_t handle)
	Aborts the sent data using DMA. More...

void	SPIFI_TransferAbortReceiveDMA (SPIFI_Type base, spifi_dma_handle_t handle)
	Aborts the receive data using DMA. More...

status_t	SPIFI_TransferGetSendCountDMA (SPIFI_Type base, spifi_dma_handle_t handle, size_t *count)
	Gets the transferred counts of send. More...

status_t	SPIFI_TransferGetReceiveCountDMA (SPIFI_Type base, spifi_dma_handle_t handle, size_t *count)
	Gets the status of the receive transfer. More...

Data Structure Documentation

struct spifi_command_t

Data Fields
uint16_t	dataLen
	How many data bytes are needed in this command. More...

bool	isPollMode
	For command need to read data from serial flash.

spifi_data_direction_t	direction
	Data direction of this command. More...

uint8_t	intermediateBytes
	How many intermediate bytes needed.

spifi_command_format_t	format
	Command format.

spifi_command_type_t	type
	Command type.

uint8_t	opcode
	Command opcode value.

Field Documentation

uint16_t spifi_command_t::dataLen

spifi_data_direction_t spifi_command_t::direction

struct spifi_config_t

Data Fields
uint16_t	timeout
	SPI transfer timeout, the unit is SCK cycles.

uint8_t	csHighTime
	CS high time cycles.

bool	disablePrefetch
	True means SPIFI will not attempt a speculative prefetch. More...

bool	disableCachePrefech
	Disable prefetch of cache line.

bool	isFeedbackClock
	Is data sample uses feedback clock. More...

spifi_spi_mode_t	spiMode
	SPIFI spi mode select.

bool	isReadFullClockCycle
	If enable read full clock cycle. More...

spifi_dual_mode_t	dualMode
	SPIFI dual mode, dual or quad. More...

Field Documentation

bool spifi_config_t::disablePrefetch

bool spifi_config_t::isFeedbackClock

bool spifi_config_t::isReadFullClockCycle

spifi_dual_mode_t spifi_config_t::dualMode

struct spifi_transfer_t

Data Fields
uint8_t *	data
	Pointer to data to transmit.

size_t	dataSize
	Bytes to be transmit.

struct _spifi_dma_handle

Data Fields
dma_handle_t *	dmaHandle
	DMA handler for SPIFI send.

size_t	transferSize
	Bytes need to transfer. More...

uint32_t	state
	Internal state for SPIFI DMA transfer.

spifi_dma_callback_t	callback
	Callback for users while transfer finish or error occurred.

void *	userData
	User callback parameter.

Field Documentation

size_t spifi_dma_handle_t::transferSize

Macro Definition Documentation

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

Enumeration Type Documentation

enum _status_t

Enumerator
kStatus_SPIFI_Idle	SPIFI is in idle state.
kStatus_SPIFI_Busy	SPIFI is busy.
kStatus_SPIFI_Error	Error occurred during SPIFI transfer.

enum spifi_interrupt_enable_t

Enumerator
kSPIFI_CommandFinishInterruptEnable	Interrupt while command finished.

enum spifi_spi_mode_t

Enumerator
kSPIFI_SPISckLow	SCK low after last bit of command, keeps low while CS high.
kSPIFI_SPISckHigh	SCK high after last bit of command and while CS high.

enum spifi_dual_mode_t

Enumerator
kSPIFI_QuadMode	SPIFI uses IO3:0.
kSPIFI_DualMode	SPIFI uses IO1:0.

enum spifi_data_direction_t

Enumerator
kSPIFI_DataInput	Data input from serial flash.
kSPIFI_DataOutput	Data output to serial flash.

enum spifi_command_format_t

Enumerator
kSPIFI_CommandAllSerial	All fields of command are serial.
kSPIFI_CommandDataQuad	Only data field is dual/quad, others are serial.
kSPIFI_CommandOpcodeSerial	Only opcode field is serial, others are quad/dual.
kSPIFI_CommandAllQuad	All fields of command are dual/quad mode.

enum spifi_command_type_t

Enumerator
kSPIFI_CommandOpcodeOnly	Command only have opcode, no address field.
kSPIFI_CommandOpcodeAddrOneByte	Command have opcode and also one byte address field.
kSPIFI_CommandOpcodeAddrTwoBytes	Command have opcode and also two bytes address field.
kSPIFI_CommandOpcodeAddrThreeBytes	Command have opcode and also three bytes address field.
kSPIFI_CommandOpcodeAddrFourBytes	Command have opcode and also four bytes address field.
kSPIFI_CommandNoOpcodeAddrThreeBytes	Command have no opcode and three bytes address field.
kSPIFI_CommandNoOpcodeAddrFourBytes	Command have no opcode and four bytes address field.

enum _spifi_status_flags

Enumerator
kSPIFI_MemoryCommandWriteFinished	Memory command write finished.
kSPIFI_CommandWriteFinished	Command write finished.
kSPIFI_InterruptRequest	CMD flag from 1 to 0, means command execute finished.

Function Documentation

void SPIFI_Init	(	SPIFI_Type *	base,
		const spifi_config_t *	config
	)

This function configures the SPIFI module with the user-defined configuration.

Parameters

base	SPIFI peripheral base address.
config	The pointer to the configuration structure.

void SPIFI_GetDefaultConfig ( spifi_config_t * config )

Parameters

config SPIFI config structure pointer.

void SPIFI_Deinit ( SPIFI_Type * base )

Parameters

base	SPIFI peripheral base address.

void SPIFI_SetCommand	(	SPIFI_Type *	base,
		spifi_command_t *	cmd
	)

Parameters

base	SPIFI peripheral base address.
cmd	SPIFI command structure pointer.

static void SPIFI_SetCommandAddress	(	SPIFI_Type *	base,
		uint32_t	addr
	)

inlinestatic

Parameters

base	SPIFI peripheral base address.
addr	Address value for the command.

static void SPIFI_SetIntermediateData	(	SPIFI_Type *	base,
		uint32_t	val
	)

inlinestatic

Before writing a command wihch needs specific intermediate value, users shall call this function to write it. The main use of this function for current serial flash is to select no-opcode mode and cancelling this mode. As dummy cycle do not care about the value, no need to call this function.

Parameters

base	SPIFI peripheral base address.
val	Intermediate data.

static void SPIFI_SetCacheLimit	(	SPIFI_Type *	base,
		uint32_t	val
	)

inlinestatic

SPIFI includes caching of prevously-accessed data to improve performance. Software can write an address to this function, to prevent such caching at and above the address.

Parameters

base	SPIFI peripheral base address.
val	Zero-based upper limit of cacheable memory.

static void SPIFI_ResetCommand ( SPIFI_Type * base )

inlinestatic

This function is used to abort the current command or memory mode.

Parameters

base	SPIFI peripheral base address.

void SPIFI_SetMemoryCommand	(	SPIFI_Type *	base,
		spifi_command_t *	cmd
	)

Call this function means SPIFI enters to memory mode, while users need to use command, a SPIFI_ResetCommand shall be called.

Parameters

base	SPIFI peripheral base address.
cmd	SPIFI command structure pointer.

static void SPIFI_EnableInterrupt	(	SPIFI_Type *	base,
		uint32_t	mask
	)

inlinestatic

The interrupt is triggered only in command mode, and it means the command now is finished.

Parameters

base	SPIFI peripheral base address.
mask	SPIFI interrupt enable mask. It is a logic OR of members the enumeration :: spifi_interrupt_enable_t

static void SPIFI_DisableInterrupt	(	SPIFI_Type *	base,
		uint32_t	mask
	)

inlinestatic

The interrupt is triggered only in command mode, and it means the command now is finished.

Parameters

base	SPIFI peripheral base address.
mask	SPIFI interrupt enable mask. It is a logic OR of members the enumeration :: spifi_interrupt_enable_t

static uint32_t SPIFI_GetStatusFlag ( SPIFI_Type * base )

inlinestatic

Parameters

base	SPIFI peripheral base address.

Returns: SPIFI flag status

static void SPIFI_EnableDMA	(	SPIFI_Type *	base,
		bool	enable
	)

inlinestatic

Parameters

base	SPIFI peripheral base address.
enable	True means enable DMA and false means disable DMA.

static uint32_t SPIFI_GetDataRegisterAddress ( SPIFI_Type * base )

inlinestatic

This API is used to provide a transfer address for the SPIFI DMA transfer configuration.

Parameters

base	SPIFI base pointer

Returns: data register address

static void SPIFI_WriteData	(	SPIFI_Type *	base,
		uint32_t	data
	)

inlinestatic

Users can write a page or at least a word data into SPIFI address.

Parameters

base	SPIFI peripheral base address.
data	Data need be write.

static void SPIFI_WriteDataByte	(	SPIFI_Type *	base,
		uint8_t	data
	)

inlinestatic

Users can write a byte data into SPIFI address.

Parameters

base	SPIFI peripheral base address.
data	Data need be write.

void SPIFI_WriteDataHalfword	(	SPIFI_Type *	base,
		uint16_t	data
	)

Users can write a halfword data into SPIFI address.

Parameters

base	SPIFI peripheral base address.
data	Data need be write.

static uint32_t SPIFI_ReadData ( SPIFI_Type * base )

inlinestatic

Users should notice before call this function, the data length field in command register shall larger than 4, otherwise a hardfault will happen.

Parameters

base	SPIFI peripheral base address.

Returns: Data input from flash.

static uint8_t SPIFI_ReadDataByte ( SPIFI_Type * base )

inlinestatic

Parameters

base	SPIFI peripheral base address.

Returns: Data input from flash.

uint16_t SPIFI_ReadDataHalfword ( SPIFI_Type * base )

Parameters

base	SPIFI peripheral base address.

Returns: Data input from flash.

void SPIFI_TransferTxCreateHandleDMA	(	SPIFI_Type *	base,
		spifi_dma_handle_t *	handle,
		spifi_dma_callback_t	callback,
		void *	userData,
		dma_handle_t *	dmaHandle
	)

Parameters

base	SPIFI peripheral base address
handle	Pointer to spifi_dma_handle_t structure
callback	SPIFI callback, NULL means no callback.
userData	User callback function data.
rxDmaHandle	User requested DMA handle for DMA transfer

void SPIFI_TransferRxCreateHandleDMA	(	SPIFI_Type *	base,
		spifi_dma_handle_t *	handle,
		spifi_dma_callback_t	callback,
		void *	userData,
		dma_handle_t *	dmaHandle
	)

Parameters

base	SPIFI peripheral base address
handle	Pointer to spifi_dma_handle_t structure
callback	SPIFI callback, NULL means no callback.
userData	User callback function data.
rxDmaHandle	User requested DMA handle for DMA transfer

status_t SPIFI_TransferSendDMA	(	SPIFI_Type *	base,
		spifi_dma_handle_t *	handle,
		spifi_transfer_t *	xfer
	)

This function writes data to the SPIFI transmit FIFO. This function is non-blocking.

Parameters

base	Pointer to QuadSPI Type.
handle	Pointer to spifi_dma_handle_t structure
xfer	SPIFI transfer structure.

status_t SPIFI_TransferReceiveDMA	(	SPIFI_Type *	base,
		spifi_dma_handle_t *	handle,
		spifi_transfer_t *	xfer
	)

This function receive data from the SPIFI receive buffer/FIFO. This function is non-blocking.

Parameters

base	Pointer to QuadSPI Type.
handle	Pointer to spifi_dma_handle_t structure
xfer	SPIFI transfer structure.

void SPIFI_TransferAbortSendDMA	(	SPIFI_Type *	base,
		spifi_dma_handle_t *	handle
	)

This function aborts the sent data using DMA.

Parameters

base	SPIFI peripheral base address.
handle	Pointer to spifi_dma_handle_t structure

void SPIFI_TransferAbortReceiveDMA	(	SPIFI_Type *	base,
		spifi_dma_handle_t *	handle
	)

This function abort receive data which using DMA.

Parameters

base	SPIFI peripheral base address.
handle	Pointer to spifi_dma_handle_t structure

status_t SPIFI_TransferGetSendCountDMA	(	SPIFI_Type *	base,
		spifi_dma_handle_t *	handle,
		size_t *	count
	)

Parameters

base	Pointer to QuadSPI Type.
handle	Pointer to spifi_dma_handle_t structure.
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 SPIFI_TransferGetReceiveCountDMA	(	SPIFI_Type *	base,
		spifi_dma_handle_t *	handle,
		size_t *	count
	)

Parameters

base	Pointer to QuadSPI Type.
handle	Pointer to spifi_dma_handle_t structure
count	Bytes received.

Return values

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

Overview

Modules

Data Structures

Typedefs

Enumerations

Functions

Driver version

Initialization and deinitialization

Basic Control Operations

Status

DMA Transactional

Data Structure Documentation

Data Fields

Field Documentation

Data Fields

Field Documentation

Data Fields

Data Fields

Field Documentation

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation