1.4.4.3 OSAL_SEM_Pend Function

OSAL_RESULT OSAL_SEM_Pend(OSAL_SEM_HANDLE_TYPE* semID, uint16_t waitMS)

Waits on a semaphore. Returns true if the semaphore was obtained within the time limit.

This function is a blocking function call that waits (i.e., pends) on a semaphore. The function will return true if the semaphore has been obtained, or false if it was not available or the time limit was exceeded.

Semaphore must have been created.

OSAL_RESULT_TRUE - Semaphore obtained

OSAL_RESULT_FALSE - Semaphore not obtained or time-out occurred

if (OSAL_SEM_Pend(&semUARTRX, 50) == OSAL_RESULT_TRUE)
{
    // character available
    c = DRV_USART_ReadByte(drvID);
    ...
}
else
{
    // character not available, resend prompt
    ...
}

None.