請先看『使用說明』

From LEXWiKi

The Sample code source you can download from

Source file: RS485Src.rar

Binary file: RS485bin.rar

How to use this Demo Application

Image:485.jpg

1. Select RS485 com port to test and then click "Open" button (click close before you change another com)

2. Select receive com port and press Open

3. Put some letter in editbox and then press "傳送資料", the editbox of receive will appear what you just enter.

4. Check "Auto-Flow" if you want to test auto flow function

Auto Check

Click "Auto Check" will check RS485 automaticlly and show the result after finish .

Enable Auto-Flow

Enable/Disable auto-flow from bios setting ( Integrated Peripherals -> COM3 422/485 flow control )