The list of demo programs:
DEMO1.C : D/O demo
DEMO2.C : D/I/O demo
DEMO3.C : Use external int. to measure pulse width(high level)
DEMO4.C : Use EVTIRQ to count event
DEMO5.C : Use TMRIRQ to generate 0.5 Hz squa.
DEMO6.C : Use TMRIRQ to generate 0.5 Hz squa. EVTIRQ to count