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* gotc.bat    : batch file for use TC 2.0
* gomsc.bat   : batch file for use MSC 5.0/6.0 
* demo12.prj  : project file for TC++3.0 or BC++ 3.1
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1. the DEMO12.EXE can only be executed under 7188
2. demo for connect up to 4 D/I device(7053 or 7041) to 7188's COM2(RS485)
   (address must between 1 to 4)
3. press 'q' to quit, 
   press '1' change to address 1,
   press '2' change to address 2,
   press '3' change to address 3,
   press '4' change to address 4.
4. 16 D/I will show on the 5DigitLed position 2 to 5(format:Hex),
   and send to terminal from COM 4 of 7188.