請先看『使用說明』
RS485 Module under WinCE
From LEXWiKi
The Sample code source you can download from
Source file: RS485Src.rar
Binary file: RS485bin.rar
How to use this Demo Application

1.Selcet RS485 com port and Rts Signal Control ,Click Open.
2. Put some message in editbox and then press send button
3.Click Recive button and than the message will display in editbox.
4.click AutoFlow if you want to test flowcontrol.
Note.this source code and binary only suppor RS485 test on VIA series motherboard