uint8_t spi_transfer(uint8_t data)
{
SPI_CHECK_ENABLED_RESP(SPI2); //check if spi is enabled
SPI_WAIT(SPI2);
SPI2->DR = data;
SPI_WAIT(SPI2);
loop_until_bit_is_set(SPI2->SR,SPI_SR_RXNE); //wait to recieve data
return SPI2->DR;
}
uint8_t SPI_Send(SPI_TypeDef* SPIx, uint8_t data) {
/* Check if SPI is enabled */
SPI_CHECK_ENABLED_RESP(SPIx, 0);
/* Wait for previous transmissions to complete if DMA TX enabled for SPI */
SPI_WAIT(SPIx);
/* Fill output buffer with data */
//SPIx->DR = data;
SPI_SendData8(SPIx, data);
/* Wait for transmission to complete */
SPI_WAIT(SPIx);
/* Return data from buffer */
//return SPIx->DR;
return SPI_ReceiveData8(SPIx);
}
