-bool CSerialPort::Open(string name, int baudrate, int databits/* = 8*/, int stopbits/* = 1*/, int parity/* = PAR_NONE*/)
+bool CSerialPort::Open(string name, uint32_t baudrate, uint8_t databits /* = 8 */, uint8_t stopbits /* = 1 */, uint8_t parity /* = PAR_NONE */)