Retrieve one character from the FIFO queue.
| Type | Name | Remark |
|---|---|---|
| uint8 | u8SerialPort | Serial port (E_AHI_UART_0 or E_AHI_UART_1 should be specified) |
| Typr | Remark |
|---|---|
| int16 | A value of 0x00-0xFF indicates that a byte has been correctly retrieved, otherwise an error occurs. |