[En-Nut-Discussion] How to add an RS485 interface to ethernut1.3D

[Bryan Lee]

Hello everyone: 
      These days I am working on a ethernut 1.3D board. The embedded programming world is new to me. Is there any possibility to add an RS485 interface to the board(as ethernut 2)? I'm not familiar with serial communication and just want to make an easy implementation of  the basic RS485 input and output function. Is there anybody to help me? Thanks!