/* SPI NSS pin low level in software mode.  */
void spi_nss_internal_low(uint32_t spi_periph)
/* SPI NSS pin low level in software mode.  */
void spi_nss_internal_low(uint32_t spi_periph)
{
    SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_SWNSS);
}