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
6
2020-01-17
Copyright © Infineon Technologies AG 2020. All rights reserved.