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* gotc.bat    : batch file for use TC 2.0
* gomsc.bat   : batch file for use MSC 5.0/6.0 
* demo1.prj   : project file for TC++3.0 or BC++ 3.1
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1. LED on/off demo
2. show to 5-digit LED demo
3. read INIT* pin
4. send debug string to standard output (PC's monitor) demo
5. read debug key from standard input (PC's keyboard) demo
6. delay time ms demo