diff options
| -rw-r--r-- | os/hal/platforms/STM32/spi_lld.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/os/hal/platforms/STM32/spi_lld.c b/os/hal/platforms/STM32/spi_lld.c index 690b1825e..e5f4ed6c5 100644 --- a/os/hal/platforms/STM32/spi_lld.c +++ b/os/hal/platforms/STM32/spi_lld.c @@ -237,9 +237,11 @@ void spi_lld_start(SPIDriver *spip) { DMA_CCR1_PSIZE_0; /* 16 bits transfers. */
/* SPI setup and enable.*/
- spip->spi->CR1 = 0;
- spip->spi->CR2 = SPI_CR2_SSOE | SPI_CR2_RXDMAEN | SPI_CR2_TXDMAEN;
- spip->spi->CR1 = spip->config->cr1 | SPI_CR1_MSTR | SPI_CR1_SPE;
+ spip->spi->CR1 = 0;
+ spip->spi->CR1 = spip->config->cr1 | SPI_CR1_MSTR | SPI_CR1_SSM |
+ SPI_CR1_SSI;
+ spip->spi->CR2 = SPI_CR2_SSOE | SPI_CR2_RXDMAEN | SPI_CR2_TXDMAEN;
+ spip->spi->CR1 |= SPI_CR1_SPE;
}
/**
|