/* Determines whether the UART transmitter is busy or not. */
tBoolean UARTBusy(unsigned long ulBase)
/* Determines whether the UART transmitter is busy or not. */
tBoolean UARTBusy(unsigned long ulBase)
{
    ASSERT(UARTBaseValid(ulBase));
    return((HWREG(ulBase + UART_O_FR) & UART_FR_BUSY) ? true : false);
}