Currently we make use of three SPI busses on a STM32F405. SPI1 is a slave and SPI 2/3 are masters. I switch SPI1 to master mode and it just doesn't work. I suspect the APB2 bus but I think I have it set correctly. Here's my code:SPI_HandleTypeDef spi_handle =
{
.Instance = DEF_SPI_INS_SPI1,
.Init =
{
.Direction = SPI_DIRECTION_2LINES,
.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2,
.CLKPhase = SPI_PHASE_2EDGE,
.CLKPolarity = SPI_POLARITY_HIGH,
.CRCCalculation = SPI_CRCCALCULATION_DISABLE,
.CRCPolynomial = 0U, // unused
.DataSize = SPI_DATASIZE_8BIT,
.FirstBit = SPI_FIRSTBIT_MSB,
.NSS = SPI_NSS_SOFT,
.TIMode = SPI_TIMODE_DISABLE,
.Mode = SPI_MODE_MASTER
}
};
HAL_StatusTypeDef return_code;
return_code = HAL_SPI_Init(&spi_handle);
uint8_t data[] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
uint8_t rx_data[16];
HAL_SPI_Abort(&spi_handle);
__HAL_SPI_ENABLE(&spi_handle);
//return_code = HAL_SPI_Transmit(&spi_handle, data, 8, 5);
return_code = HAL_SPI_TransmitReceive(&spi_handle, data, rx_data, 8, 100);
while (HAL_SPI_GetState(&spi_handle) != HAL_SPI_STATE_READY);return_code from HAL_SPI_Init() == HAL_OKreturn code from HAL_
