Description: Stopwatch design with 89C51 design a two LED digital tube display, " stopwatch" , show time is 00 to 99 seconds, 1 second automatic, expiry display " FF" . Another design a " start" button and a " stop" button, click " Start" button to display the number of seconds from 00 starts, press the " Stop" button, keeping real-time, stop the timer.
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ORG 0000H.doc
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