/* Check if one transmit buffer is sent out.  */
uint32_t uart_is_tx_buf_end(Uart *p_uart)
/* Check if one transmit buffer is sent out.  */
uint32_t uart_is_tx_buf_end(Uart *p_uart)
{
	return (p_uart->UART_SR & UART_SR_ENDTX) > 0;
}