Paulo Bruckmann / BurstSPI

Added support for STM32F103RB

BurstSPI_STMF103RB.cpp

Committer:
peekpt
Date:
2020-04-24
Revision:
14:8872ab64789c

File content as of revision 14:8872ab64789c:

#if defined(TARGET_STM32F103RB)
#include "BurstSPI.h"

void BurstSPI::fastWrite(int data)
{
    SPI_TypeDef *spi = (SPI_TypeDef *)(_peripheral->spi.spi.handle.Instance);
    // Check if data is transmitted
    while ((spi->SR & SPI_SR_TXE) == 0);
    spi->DR = data;
}

void BurstSPI::clearRX(void)
{
    const SPI_TypeDef *spi =
        (SPI_TypeDef *)(_peripheral->spi.spi.handle.Instance);
    while (spi->SR & SPI_SR_BSY) {
        // Check RX buffer readable
        while ((spi->SR & SPI_SR_RXNE) == 0)
            ;
        int dummy = spi->DR;
        (void)dummy; // suppress UNUSED warning
    }
}

#endif