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refactored spi components for stm32

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This commit is contained in:
Robin Müller
2021-06-10 12:05:49 +02:00
parent 499ff5dd12
commit 5c40ca9ae8
13 changed files with 187 additions and 94 deletions
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26
stm32h7/spi/SpiCookie.cpp
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@ -1,13 +1,27 @@
#include "SpiCookie.h"
SpiCookie::SpiCookie(address_t deviceAddress, spi::SpiBus spiIdx, uint32_t spiSpeed,
spi::SpiModes spiMode, uint16_t chipSelectGpioPin, GPIO_TypeDef* chipSelectGpioPort,
size_t maxRecvSize):
SpiCookie::SpiCookie(address_t deviceAddress, spi::SpiBus spiIdx, SPI_TypeDef* spiInstance,
uint32_t spiSpeed, spi::SpiModes spiMode, uint16_t chipSelectGpioPin,
GPIO_TypeDef* chipSelectGpioPort, size_t maxRecvSize):
deviceAddress(deviceAddress), spiIdx(spiIdx), spiSpeed(spiSpeed), spiMode(spiMode),
chipSelectGpioPin(chipSelectGpioPin), chipSelectGpioPort(chipSelectGpioPort),
maxRecvSize(maxRecvSize) {
spiHandle.Instance = spiInstance;
spiHandle.Init.DataSize = SPI_DATASIZE_8BIT;
spiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;
spiHandle.Init.TIMode = SPI_TIMODE_DISABLE;
spiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
spiHandle.Init.CRCPolynomial = 7;
spiHandle.Init.CRCLength = SPI_CRC_LENGTH_8BIT;
spiHandle.Init.NSS = SPI_NSS_SOFT;
spiHandle.Init.NSSPMode = SPI_NSS_PULSE_DISABLE;
spiHandle.Init.Direction = SPI_DIRECTION_2LINES;
// Recommended setting to avoid glitches
spiHandle.Init.MasterKeepIOState = SPI_MASTER_KEEP_IO_STATE_ENABLE;
spiHandle.Init.Mode = SPI_MODE_MASTER;
spi::assignSpiMode(spiMode, spiHandle);
spiHandle.Init.BaudRatePrescaler = spi::getPrescaler(HAL_RCC_GetHCLKFreq(), spiSpeed);
}
uint16_t SpiCookie::getChipSelectGpioPin() const {
@ -37,3 +51,7 @@ uint32_t SpiCookie::getSpiSpeed() const {
size_t SpiCookie::getMaxRecvSize() const {
return maxRecvSize;
}
SPI_HandleTypeDef& SpiCookie::getSpiHandle() {
return spiHandle;
}