Re: USART Read/Write
Depending on the part that you are running this on, you will need to make sure the UART RX function is mapped correctly to the IO pin. Check the Pin Manager settings in MHC to ensure this. You should then make sure that you have interrupt enabled. Are you running the driver in polled or interrupt mode. If you have opened the driver for blocking mode (DRV_IO_INTENT_BLOCK), then you cannot use the Read/Write model in polling mode. The driver must be configured for interrupt mode.