Detailed Description

A SPI_Transaction data structure is used with SPI_transfer(). It indicates how many SPI_FrameFormat frames are sent and received from the buffers pointed to txBuf and rxBuf. The arg variable is an user-definable argument which gets passed to the SPI_CallbackFxn when the SPI driver is in SPI_MODE_CALLBACK.

Data Fields
size_t	count

uint64_t	txDmaBuf

uint64_t	rxDmaBuf

void *	txBuf

void *	rxBuf

void *	arg

SPI_Status	status

Field Documentation

◆ count

size_t SPI_Transaction::count

Number of frames for this transaction

◆ txDmaBuf

uint64_t SPI_Transaction::txDmaBuf

Pointer to a buffer with data to be transmitted

◆ rxDmaBuf

uint64_t SPI_Transaction::rxDmaBuf

Pointer to a buffer to receive data

◆ txBuf

void* SPI_Transaction::txBuf

Pointer to a buffer with data to be transmitted

◆ rxBuf

void* SPI_Transaction::rxBuf

Pointer to a buffer to receive data

◆ arg

void* SPI_Transaction::arg

Argument to be passed to the callback function

◆ status

SPI_Status SPI_Transaction::status

Status code set by SPI_transfer