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. More...

#include <SPI.h>

Data Fields
size_t	count

void *	txBuf

void *	rxBuf

void *	arg

SPI_Status	status

void *	nextPtr

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.

Field Documentation

§ count

size_t SPI_Transaction::count

Number of frames for this transaction

§ txBuf

void* SPI_Transaction::txBuf

void * to a buffer with data to be transmitted

§ rxBuf

void* SPI_Transaction::rxBuf

void * 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

SPI_Status code set by SPI_transfer

§ nextPtr

void* SPI_Transaction::nextPtr

Field used internally by the driver and must never be accessed by the application.

The documentation for this struct was generated from the following file:

SPI.h

Data Fields