/* Determines whether the UART transmitter is busy or not. */
bool UARTBusy(uint32_t ui32Base)
/* Determines whether the UART transmitter is busy or not. */
bool UARTBusy(uint32_t ui32Base)
{
    ASSERT(_UARTBaseValid(ui32Base));
    return ((HWREG(ui32Base + UART_O_FR) & UART_FR_BUSY) ? true : false);
}