i have exception whene i try to open serial port with Parity.Mark
" serialPort = new SerialPort(SerialPorts.COM2, 19200, Parity.Mark, 8, StopBits.One);"
and when i set parity.none it's ok
serialPort = new SerialPort(SerialPorts.COM1, 19200, Parity.None, 8, StopBits.One);
can somebody help me to resolve this issue