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3.2 Using Serial Port Demo App
Serial Port ID: COM1, COM2
Correspondence between RS232 tail line and device node.
COM1=/dev/ttyHSL0.
COM2=/dev/ttyHSL1.
1. The boxes in red means the text box for the COM port info. received, to display
info received by corresponding COM port.
2. The boxes in red means the text input box for the COM port info. sent, to edit
info sent by corresponding COM port.
3. The left box in red means Baud rate Drop-down selection box, to select
corresponding COM port Baud rate
。
4. The right box in red means COM port switch, to switch on/off corresponding
COM port.
5. The boxes in red means auto send interval time setting.
6. The boxes in red means auto send mode selection, and COM port info.
sending button.
7. COM port info. sending button.
8. The boxes in red means text rows counting in the info. receiving text box, the
above numbers corresponding to the COM port info. receiving box on the left,
the following numbers corresponding to the one on the right.
9. The boxes in red means send/receive info. codec format option button, select
Txt to send info. with String codec, select Hex to send info. with Hexadecimal
format codec.
10. The boxes in red means manual clear button, click to clear both info. in the
COM port info. receiving boxes.
