Overview

The MCUXpresso SDK provides a driver for the CMOS Sensor Interface (CSI)

The CSI enables the chip to connect directly to external CMOS image sensors. The CSI driver provides functional APIs and transactional APIs for the CSI module. The functional APIs implement the basic functions, so the user can construct them for a special use case. The transactional APIs provide a queue mechanism in order for the user to submit an empty frame buffer and get a fully-filled frame buffer easily.

Frame Buffer Queue

The CSI transactional functions maintain a frame buffer queue. The queue size is defined by the macro CSI_DRIVER_QUEUE_SIZE. The queue size is 4 by default, but the user can override it by redefining the macro value in the project setting.
To use transactional APIs, first call CSI_TransferCreateHandle to create a handle to save the CSI driver state. This function initializes the frame buffer queue to empty status.
After the handle is created, the function CSI_TransferSubmitEmptyBuffer can be used to submit the empty frame buffer to the queue. If the queue does not have room to save the new empty frame buffers, this function returns with an error. It is not necessary to check the queue rooms before submitting an empty frame buffer. After this step, the application can call CSI_TransferStart to start the transfer. There must be at least two empty buffers in the queue, otherwise this function returns an error. The incoming frames are saved to the empty buffers one by one, and a callback is provided when every frame completed. To get the fully-filled frame buffer, call the function CSI_TransferGetFullBuffer. This function returns an error if the frame buffer queue does not have full buffers. Therefore, it is not necessary to check the full buffer number in the queue before this function.
To stop the transfer, call the function CSI_TransferStop at anytime. If the queue has some full frame buffers, the application can still read them out after this stop function.
Once the transfer is started by calling CSI_TransferStart, the CSI device starts to receive frames and save into buffer. The CSI devices does not stop until CSI_TransferStop is called. If application does not submit empty buffer to CSI driver, the CSI driver always writes to the last submited empty buffer, this buffer will never be sent into full buffer queue until new empty buffer submited. In other words, one frame buffer is reserved by CSI driver, if application submits N empty buffers, it could get (N-1) full buffers.

Fragment Mode

The frame buffer queue mechanism needs large memory, it is not suitable for some special case, for example, no SDRAM used. Fragment mode is designed for this purpose, it needs two types of buffers:

DMA buffer. It could be as small as (camera frame width x 2 x 2) bytes, CSI DMA writes the input data to this buffer.
Frame buffer. The input data is copied to this buffer at last. What is more, user could define a window (in other words, region of interest), only image in this window will be copied to the frame buffer. If input data is YUV422 format, user can only save Y component optionally.

Limitations:

Fragment mode could not be used together with frame buffer queue mode.
In fragment mode, user should pay attention to the system payload. When the payload is high, the image capture might be broken.

Typical use case

Refer to the driver examples codes located at <SDK_ROOT>/boards/<BOARD>/driver_examples/csi

Data Structures
struct	csi_config_t
	Configuration to initialize the CSI module. More...

struct	csi_handle_t
	CSI handle structure. More...

Macros
#define	CSI_DRIVER_QUEUE_SIZE 4U
	Size of the frame buffer queue used in CSI transactional function. More...

#define	CSI_DRIVER_FRAG_MODE 0U
	Enable fragment capture function or not. More...

Typedefs
typedef void(*	csi_transfer_callback_t )(CSI_Type base, csi_handle_t handle, status_t status, void *userData)
	CSI transfer callback function. More...

Enumerations
enum	{ kStatus_CSI_NoEmptyBuffer = MAKE_STATUS(kStatusGroup_CSI, 0), kStatus_CSI_NoFullBuffer = MAKE_STATUS(kStatusGroup_CSI, 1), kStatus_CSI_QueueFull = MAKE_STATUS(kStatusGroup_CSI, 2), kStatus_CSI_FrameDone = MAKE_STATUS(kStatusGroup_CSI, 3) }
	Error codes for the CSI driver. More...

enum	csi_work_mode_t { kCSI_GatedClockMode = CSI_CSICR1_GCLK_MODE(1U), kCSI_NonGatedClockMode = 0U, kCSI_CCIR656ProgressiveMode = CSI_CSICR1_CCIR_EN(1U) }
	CSI work mode. More...

enum	csi_data_bus_t { kCSI_DataBus8Bit, kCSI_DataBus16Bit, kCSI_DataBus24Bit }
	CSI data bus witdh. More...

enum	_csi_polarity_flags { kCSI_HsyncActiveLow = 0U, kCSI_HsyncActiveHigh = CSI_CSICR1_HSYNC_POL_MASK, kCSI_DataLatchOnRisingEdge = CSI_CSICR1_REDGE_MASK, kCSI_DataLatchOnFallingEdge = 0U, kCSI_VsyncActiveHigh = 0U, kCSI_VsyncActiveLow = CSI_CSICR1_SOF_POL_MASK }
	CSI signal polarity. More...

enum	csi_fifo_t { kCSI_RxFifo = (1U << 0U), kCSI_StatFifo = (1U << 1U), kCSI_AllFifo = 0x01 \| 0x02 }
	The CSI FIFO, used for FIFO operation. More...

enum	_csi_interrupt_enable { kCSI_EndOfFrameInterruptEnable = CSI_CSICR1_EOF_INT_EN_MASK, kCSI_ChangeOfFieldInterruptEnable = CSI_CSICR1_COF_INT_EN_MASK, kCSI_StatFifoOverrunInterruptEnable = CSI_CSICR1_SF_OR_INTEN_MASK, kCSI_RxFifoOverrunInterruptEnable = CSI_CSICR1_RF_OR_INTEN_MASK, kCSI_StatFifoDmaDoneInterruptEnable, kCSI_StatFifoFullInterruptEnable = CSI_CSICR1_STATFF_INTEN_MASK, kCSI_RxBuffer1DmaDoneInterruptEnable, kCSI_RxBuffer0DmaDoneInterruptEnable, kCSI_RxFifoFullInterruptEnable = CSI_CSICR1_RXFF_INTEN_MASK, kCSI_StartOfFrameInterruptEnable = CSI_CSICR1_SOF_INTEN_MASK, kCSI_EccErrorInterruptEnable = CSI_CSICR3_ECC_INT_EN_MASK, kCSI_AhbResErrorInterruptEnable = CSI_CSICR3_HRESP_ERR_EN_MASK, kCSI_BaseAddrChangeErrorInterruptEnable, kCSI_Field0DoneInterruptEnable = CSI_CSICR18_FIELD0_DONE_IE_MASK << 6U, kCSI_Field1DoneInterruptEnable = CSI_CSICR18_DMA_FIELD1_DONE_IE_MASK << 6U }
	CSI feature interrupt source. More...

enum	_csi_flags { kCSI_RxFifoDataReadyFlag = CSI_CSISR_DRDY_MASK, kCSI_EccErrorFlag = CSI_CSISR_ECC_INT_MASK, kCSI_AhbResErrorFlag = CSI_CSISR_HRESP_ERR_INT_MASK, kCSI_ChangeOfFieldFlag = CSI_CSISR_COF_INT_MASK, kCSI_Field0PresentFlag = CSI_CSISR_F1_INT_MASK, kCSI_Field1PresentFlag = CSI_CSISR_F2_INT_MASK, kCSI_StartOfFrameFlag = CSI_CSISR_SOF_INT_MASK, kCSI_EndOfFrameFlag = CSI_CSISR_EOF_INT_MASK, kCSI_RxFifoFullFlag = CSI_CSISR_RxFF_INT_MASK, kCSI_RxBuffer1DmaDoneFlag = CSI_CSISR_DMA_TSF_DONE_FB2_MASK, kCSI_RxBuffer0DmaDoneFlag = CSI_CSISR_DMA_TSF_DONE_FB1_MASK, kCSI_StatFifoFullFlag = CSI_CSISR_STATFF_INT_MASK, kCSI_StatFifoDmaDoneFlag = CSI_CSISR_DMA_TSF_DONE_SFF_MASK, kCSI_StatFifoOverrunFlag = CSI_CSISR_SF_OR_INT_MASK, kCSI_RxFifoOverrunFlag = CSI_CSISR_RF_OR_INT_MASK, kCSI_Field0DoneFlag = CSI_CSISR_DMA_FIELD0_DONE_MASK, kCSI_Field1DoneFlag = CSI_CSISR_DMA_FIELD1_DONE_MASK, kCSI_BaseAddrChangeErrorFlag = CSI_CSISR_BASEADDR_CHHANGE_ERROR_MASK }
	CSI status flags. More...

Driver version
#define	FSL_CSI_DRIVER_VERSION (MAKE_VERSION(2, 1, 3))

Initialization and deinitialization
status_t	CSI_Init (CSI_Type base, const csi_config_t config)
	Initialize the CSI. More...

void	CSI_Deinit (CSI_Type *base)
	De-initialize the CSI. More...

void	CSI_Reset (CSI_Type *base)
	Reset the CSI. More...

void	CSI_GetDefaultConfig (csi_config_t *config)
	Get the default configuration for to initialize the CSI. More...

Module operation
void	CSI_ClearFifo (CSI_Type *base, csi_fifo_t fifo)
	Clear the CSI FIFO. More...

void	CSI_ReflashFifoDma (CSI_Type *base, csi_fifo_t fifo)
	Reflash the CSI FIFO DMA. More...

void	CSI_EnableFifoDmaRequest (CSI_Type *base, csi_fifo_t fifo, bool enable)
	Enable or disable the CSI FIFO DMA request. More...

static void	CSI_Start (CSI_Type *base)
	Start to receive data. More...

static void	CSI_Stop (CSI_Type *base)
	Stop to receiving data. More...

void	CSI_SetRxBufferAddr (CSI_Type *base, uint8_t index, uint32_t addr)
	Set the RX frame buffer address. More...

Interrupts
void	CSI_EnableInterrupts (CSI_Type *base, uint32_t mask)
	Enables CSI interrupt requests. More...

void	CSI_DisableInterrupts (CSI_Type *base, uint32_t mask)
	Disable CSI interrupt requests. More...

Status
static uint32_t	CSI_GetStatusFlags (CSI_Type *base)
	Gets the CSI status flags. More...

static void	CSI_ClearStatusFlags (CSI_Type *base, uint32_t statusMask)
	Clears the CSI status flag. More...

Transactional
status_t	CSI_TransferCreateHandle (CSI_Type base, csi_handle_t handle, csi_transfer_callback_t callback, void *userData)
	Initializes the CSI handle. More...

status_t	CSI_TransferStart (CSI_Type base, csi_handle_t handle)
	Start the transfer using transactional functions. More...

status_t	CSI_TransferStop (CSI_Type base, csi_handle_t handle)
	Stop the transfer using transactional functions. More...

status_t	CSI_TransferSubmitEmptyBuffer (CSI_Type base, csi_handle_t handle, uint32_t frameBuffer)
	Submit empty frame buffer to queue. More...

status_t	CSI_TransferGetFullBuffer (CSI_Type base, csi_handle_t handle, uint32_t *frameBuffer)
	Get one full frame buffer from queue. More...

void	CSI_TransferHandleIRQ (CSI_Type base, csi_handle_t handle)
	CSI IRQ handle function. More...

Data Structure Documentation

struct csi_config_t

Data Fields
uint16_t	width
	Pixels of the input frame. More...

uint16_t	height
	Lines of the input frame. More...

uint32_t	polarityFlags
	Timing signal polarity flags, OR'ed value of _csi_polarity_flags. More...

uint8_t	bytesPerPixel
	Bytes per pixel, valid values are: More...

uint16_t	linePitch_Bytes
	Frame buffer line pitch, must be 8-byte aligned. More...

csi_work_mode_t	workMode
	CSI work mode. More...

csi_data_bus_t	dataBus
	Data bus width. More...

bool	useExtVsync
	In CCIR656 progressive mode, set true to use external VSYNC signal, set false to use internal VSYNC signal decoded from SOF. More...

Field Documentation

uint16_t csi_config_t::width

uint16_t csi_config_t::height

uint32_t csi_config_t::polarityFlags

uint8_t csi_config_t::bytesPerPixel

2: Used for RGB565, YUV422, and so on.
4: Used for XRGB8888, XYUV444, and so on.

uint16_t csi_config_t::linePitch_Bytes

csi_work_mode_t csi_config_t::workMode

csi_data_bus_t csi_config_t::dataBus

bool csi_config_t::useExtVsync

struct _csi_handle

Please see the user guide for the details of the CSI driver queue mechanism.

Data Fields
uint32_t	frameBufferQueue [CSI_DRIVER_ACTUAL_QUEUE_SIZE]
	Frame buffer queue. More...

volatile uint8_t	queueWriteIdx
	Pointer to save incoming item. More...

volatile uint8_t	queueReadIdx
	Pointer to read out the item. More...

void *volatile	emptyBuffer
	Pointer to maintain the empty frame buffers. More...

volatile uint8_t	emptyBufferCnt
	Empty frame buffers count. More...

volatile uint8_t	activeBufferNum
	How many frame buffers are in progres currently. More...

volatile bool	transferStarted
	User has called CSI_TransferStart to start frame receiving. More...

csi_transfer_callback_t	callback
	Callback function. More...

void *	userData
	CSI callback function parameter. More...

Field Documentation

uint32_t csi_handle_t::frameBufferQueue[CSI_DRIVER_ACTUAL_QUEUE_SIZE]

volatile uint8_t csi_handle_t::queueWriteIdx

volatile uint8_t csi_handle_t::queueReadIdx

void* volatile csi_handle_t::emptyBuffer

volatile uint8_t csi_handle_t::emptyBufferCnt

volatile uint8_t csi_handle_t::activeBufferNum

volatile bool csi_handle_t::transferStarted

csi_transfer_callback_t csi_handle_t::callback

void* csi_handle_t::userData

Macro Definition Documentation

#define CSI_DRIVER_QUEUE_SIZE 4U

#define CSI_DRIVER_FRAG_MODE 0U

Typedef Documentation

typedef void(* csi_transfer_callback_t)(CSI_Type *base, csi_handle_t *handle, status_t status, void *userData)

When a new frame is received and saved to the frame buffer queue, the callback is called and the pass the status kStatus_CSI_FrameDone to upper layer.

Enumeration Type Documentation

anonymous enum

Enumerator
kStatus_CSI_NoEmptyBuffer	No empty frame buffer in queue to load to CSI.
kStatus_CSI_NoFullBuffer	No full frame buffer in queue to read out.
kStatus_CSI_QueueFull	Queue is full, no room to save new empty buffer.
kStatus_CSI_FrameDone	New frame received and saved to queue.

enum csi_work_mode_t

The CCIR656 interlace mode is not supported currently.

Enumerator
kCSI_GatedClockMode	HSYNC, VSYNC, and PIXCLK signals are used.
kCSI_NonGatedClockMode	VSYNC, and PIXCLK signals are used.
kCSI_CCIR656ProgressiveMode	CCIR656 progressive mode.

enum csi_data_bus_t

Enumerator
kCSI_DataBus8Bit	8-bit data bus.
kCSI_DataBus16Bit	16-bit data bus.
kCSI_DataBus24Bit	24-bit data bus.

enum _csi_polarity_flags

Enumerator
kCSI_HsyncActiveLow	HSYNC is active low.
kCSI_HsyncActiveHigh	HSYNC is active high.
kCSI_DataLatchOnRisingEdge	Pixel data latched at rising edge of pixel clock.
kCSI_DataLatchOnFallingEdge	Pixel data latched at falling edge of pixel clock.
kCSI_VsyncActiveHigh	VSYNC is active high.
kCSI_VsyncActiveLow	VSYNC is active low.

enum csi_fifo_t

Enumerator
kCSI_RxFifo	RXFIFO.
kCSI_StatFifo	STAT FIFO.
kCSI_AllFifo	Both RXFIFO and STAT FIFO.

enum _csi_interrupt_enable

Enumerator
kCSI_EndOfFrameInterruptEnable	End of frame interrupt enable.
kCSI_ChangeOfFieldInterruptEnable	Change of field interrupt enable.
kCSI_StatFifoOverrunInterruptEnable	STAT FIFO overrun interrupt enable.
kCSI_RxFifoOverrunInterruptEnable	RXFIFO overrun interrupt enable.
kCSI_StatFifoDmaDoneInterruptEnable	STAT FIFO DMA done interrupt enable.
kCSI_StatFifoFullInterruptEnable	STAT FIFO full interrupt enable.
kCSI_RxBuffer1DmaDoneInterruptEnable	RX frame buffer 1 DMA transfer done.
kCSI_RxBuffer0DmaDoneInterruptEnable	RX frame buffer 0 DMA transfer done.
kCSI_RxFifoFullInterruptEnable	RXFIFO full interrupt enable.
kCSI_StartOfFrameInterruptEnable	Start of frame (SOF) interrupt enable.
kCSI_EccErrorInterruptEnable	ECC error detection interrupt enable.
kCSI_AhbResErrorInterruptEnable	AHB response Error interrupt enable.
kCSI_BaseAddrChangeErrorInterruptEnable	The DMA output buffer base address changes before DMA completed.
kCSI_Field0DoneInterruptEnable	Field 0 done interrupt enable.
kCSI_Field1DoneInterruptEnable	Field 1 done interrupt enable.

enum _csi_flags

The following status register flags can be cleared:

kCSI_EccErrorFlag
kCSI_AhbResErrorFlag
kCSI_ChangeOfFieldFlag
kCSI_StartOfFrameFlag
kCSI_EndOfFrameFlag
kCSI_RxBuffer1DmaDoneFlag
kCSI_RxBuffer0DmaDoneFlag
kCSI_StatFifoDmaDoneFlag
kCSI_StatFifoOverrunFlag
kCSI_RxFifoOverrunFlag
kCSI_Field0DoneFlag
kCSI_Field1DoneFlag
kCSI_BaseAddrChangeErrorFlag

Enumerator
kCSI_RxFifoDataReadyFlag	RXFIFO data ready.
kCSI_EccErrorFlag	ECC error detected.
kCSI_AhbResErrorFlag	Hresponse (AHB bus response) Error.
kCSI_ChangeOfFieldFlag	Change of field.
kCSI_Field0PresentFlag	Field 0 present in CCIR mode.
kCSI_Field1PresentFlag	Field 1 present in CCIR mode.
kCSI_StartOfFrameFlag	Start of frame (SOF) detected.
kCSI_EndOfFrameFlag	End of frame (EOF) detected.
kCSI_RxFifoFullFlag	RXFIFO full (Number of data reaches trigger level).
kCSI_RxBuffer1DmaDoneFlag	RX frame buffer 1 DMA transfer done.
kCSI_RxBuffer0DmaDoneFlag	RX frame buffer 0 DMA transfer done.
kCSI_StatFifoFullFlag	STAT FIFO full (Reach trigger level).
kCSI_StatFifoDmaDoneFlag	STAT FIFO DMA transfer done.
kCSI_StatFifoOverrunFlag	STAT FIFO overrun.
kCSI_RxFifoOverrunFlag	RXFIFO overrun.
kCSI_Field0DoneFlag	Field 0 transfer done.
kCSI_Field1DoneFlag	Field 1 transfer done.
kCSI_BaseAddrChangeErrorFlag	The DMA output buffer base address changes before DMA completed.

Function Documentation

status_t CSI_Init	(	CSI_Type *	base,
		const csi_config_t *	config
	)

This function enables the CSI peripheral clock, and resets the CSI registers.

Parameters

base	CSI peripheral base address.
config	Pointer to the configuration structure.

Return values

kStatus_Success	Initialize successfully.
kStatus_InvalidArgument	Initialize failed because of invalid argument.

void CSI_Deinit ( CSI_Type * base )

This function disables the CSI peripheral clock.

Parameters

base	CSI peripheral base address.

void CSI_Reset ( CSI_Type * base )

This function resets the CSI peripheral registers to default status.

Parameters

base	CSI peripheral base address.

void CSI_GetDefaultConfig ( csi_config_t * config )

The default configuration value is:

config->width = 320U;
config->height = 240U;
config->polarityFlags = kCSI_HsyncActiveHigh | kCSI_DataLatchOnRisingEdge;
config->bytesPerPixel = 2U;
config->linePitch_Bytes = 320U * 2U;
config->workMode = kCSI_GatedClockMode;
config->dataBus = kCSI_DataBus8Bit;
config->useExtVsync = true;

Parameters

config Pointer to the CSI configuration.

void CSI_ClearFifo	(	CSI_Type *	base,
		csi_fifo_t	fifo
	)

This function clears the CSI FIFO.

Parameters

base	CSI peripheral base address.
fifo	The FIFO to clear.

void CSI_ReflashFifoDma	(	CSI_Type *	base,
		csi_fifo_t	fifo
	)

This function reflashes the CSI FIFO DMA.

For RXFIFO, there are two frame buffers. When the CSI module started, it saves the frames to frame buffer 0 then frame buffer 1, the two buffers will be written by turns. After reflash DMA using this function, the CSI is reset to save frame to buffer 0.

Parameters

base	CSI peripheral base address.
fifo	The FIFO DMA to reflash.

void CSI_EnableFifoDmaRequest	(	CSI_Type *	base,
		csi_fifo_t	fifo,
		bool	enable
	)

Parameters

base	CSI peripheral base address.
fifo	The FIFO DMA reques to enable or disable.
enable	True to enable, false to disable.

static void CSI_Start ( CSI_Type * base )

inlinestatic

Parameters

base	CSI peripheral base address.

static void CSI_Stop ( CSI_Type * base )

inlinestatic

Parameters

base	CSI peripheral base address.

void CSI_SetRxBufferAddr	(	CSI_Type *	base,
		uint8_t	index,
		uint32_t	addr
	)

Parameters

base	CSI peripheral base address.
index	Buffer index.
addr	Frame buffer address to set.

void CSI_EnableInterrupts	(	CSI_Type *	base,
		uint32_t	mask
	)

Parameters

base	CSI peripheral base address.
mask	The interrupts to enable, pass in as OR'ed value of _csi_interrupt_enable.

void CSI_DisableInterrupts	(	CSI_Type *	base,
		uint32_t	mask
	)

Parameters

base	CSI peripheral base address.
mask	The interrupts to disable, pass in as OR'ed value of _csi_interrupt_enable.

static uint32_t CSI_GetStatusFlags ( CSI_Type * base )

inlinestatic

Parameters

base	CSI peripheral base address.

Returns: status flag, it is OR'ed value of _csi_flags.

static void CSI_ClearStatusFlags	(	CSI_Type *	base,
		uint32_t	statusMask
	)

inlinestatic

The flags to clear are passed in as OR'ed value of _csi_flags. The following flags are cleared automatically by hardware:

Parameters

base	CSI peripheral base address.
statusMask	The status flags mask, OR'ed value of _csi_flags.

status_t CSI_TransferCreateHandle	(	CSI_Type *	base,
		csi_handle_t *	handle,
		csi_transfer_callback_t	callback,
		void *	userData
	)

This function initializes CSI handle, it should be called before any other CSI transactional functions.

Parameters

base	CSI peripheral base address.
handle	Pointer to the handle structure.
callback	Callback function for CSI transfer.
userData	Callback function parameter.

Return values

kStatus_Success Handle created successfully.

status_t CSI_TransferStart	(	CSI_Type *	base,
		csi_handle_t *	handle
	)

When the empty frame buffers have been submit to CSI driver using function CSI_TransferSubmitEmptyBuffer, user could call this function to start the transfer. The incoming frame will be saved to the empty frame buffer, and user could be optionally notified through callback function.

Parameters

base	CSI peripheral base address.
handle	Pointer to the handle structure.

Return values

kStatus_Success	Started successfully.
kStatus_CSI_NoEmptyBuffer	Could not start because no empty frame buffer in queue.

status_t CSI_TransferStop	(	CSI_Type *	base,
		csi_handle_t *	handle
	)

The driver does not clean the full frame buffers in queue. In other words, after calling this function, user still could get the full frame buffers in queue using function CSI_TransferGetFullBuffer.

Parameters

base	CSI peripheral base address.
handle	Pointer to the handle structure.

Return values

kStatus_Success Stoped successfully.

status_t CSI_TransferSubmitEmptyBuffer	(	CSI_Type *	base,
		csi_handle_t *	handle,
		uint32_t	frameBuffer
	)

This function could be called before CSI_TransferStart or after CSI_TransferStart. If there is no room in queue to store the empty frame buffer, this function returns error.

Parameters

base	CSI peripheral base address.
handle	Pointer to the handle structure.
frameBuffer	Empty frame buffer to submit.

Return values

kStatus_Success	Started successfully.
kStatus_CSI_QueueFull	Could not submit because there is no room in queue.

status_t CSI_TransferGetFullBuffer	(	CSI_Type *	base,
		csi_handle_t *	handle,
		uint32_t *	frameBuffer
	)

After the transfer started using function CSI_TransferStart, the incoming frames will be saved to the empty frame buffers in queue. This function gets the full-filled frame buffer from the queue. If there is no full frame buffer in queue, this function returns error.

Parameters

base	CSI peripheral base address.
handle	Pointer to the handle structure.
frameBuffer	Full frame buffer.

Return values

kStatus_Success	Started successfully.
kStatus_CSI_NoFullBuffer	There is no full frame buffer in queue.

void CSI_TransferHandleIRQ	(	CSI_Type *	base,
		csi_handle_t *	handle
	)

This function handles the CSI IRQ request to work with CSI driver transactional APIs.

Parameters

base	CSI peripheral base address.
handle	CSI handle pointer.

Overview

Frame Buffer Queue

Fragment Mode

Typical use case

Data Structures

Macros

Typedefs

Enumerations

Driver version

Initialization and deinitialization

Module operation

Interrupts

Status

Transactional

Data Structure Documentation

Data Fields

Field Documentation

Data Fields

Field Documentation

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation

Function Documentation