AWOL:
ht :)tp://arduino.cc/en/Serial/Begin
But i am using Softwareserial.h for RS485 and that libary do not accept any config. like SERIAL_7N1.
for example;
SoftwareSerial rs485(pinRX,pinTX);
rs485.begin(9600,SERIAL_7N1 );
that SERIAL_7N1 paramatter do not acceptable for lib.