/* This function initiates TX and RX DMA transfers by enabling DMA channels.  */
void StartTransfers(void)
/* This function initiates TX and RX DMA transfers by enabling DMA channels.  */
void StartTransfers(void)
{
    LL_USART_TransmitData8(USART1, aUSART1TxBuffer[ubSend++]);
    LL_USART_EnableIT_TXE(USART1); 
}