How can I use Udoo Neo Arduino core (Serial0) send message through UART at baudrate 230400, bit parity Even? I do simple testing connect Udoo Neo's UART to PC com port, program Udoo Neo Arduino to send 'hello world' every 100 msec. and let PC monitor it. whenever I try Serial0.begin(baud, SERIAL_8E1) no matter how much baud I use (9600, 115200 or 230400) , I got error message from UDOO Arduino UART. However, if I change to Serial0.begin(baud) , even baud is 230400, my PC get message from Udoo Neo's Arduino correctly. is there any problem with using bit parity in Udoo Neo's Arduino core?