Infineon SPI DMA 1 Manual page 6

Spi data communication via dma, aurix tc2xx microcontroller training

Implementation

Configuring the SPI communication

The configuration of the SPI communication is done through the function initQSPI() in two

different steps:

›

QSPI Slave initialization

›

QSPI Master initialization

QSPI Slave initialization

›

The initialization of the QSPI slave module is done by defining an instance of the

IfxQspi_SpiSlave_Config structure

›

The structure is filled with default values by the function

IfxQspi_SpiSlave_initModuleConfig()

›

Afterwards, the following parameters are modified to enable the DMA usage, set its

channels, interrupt priorities and IO port pins:

–

DMA configuration: dma.useDma, dma.txDmaChannelId, dma.rxDmaChannelId

–

Interrupts configuration: base.txPriority, base.rxPriority, base.erPriority,

base.isrProvider

–

Pins configuration: pins

2020-01-17