Title:
at89c52_3key_Digitaltube
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Description: Based At89c52 and implement digital stopwatch, has a positive time, countdown and clear function, three buttons corresponding to k1 (start time, pause, resume), k2 (countdown, pause, resume), k3 (stop, zero ). File contains the source code and schematics.
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at89c52_3key_Digitaltube\Keil\test4
........................\....\test4.hex
........................\....\test4.lnp
........................\....\test4.M51
........................\....\test4.Opt
........................\....\test4.plg
........................\....\test4.Uv2
........................\....\test4_Opt.Bak
........................\....\test4_Uv2.Bak
........................\....\Text4.c
........................\....\Text4.LST
........................\....\Text4.OBJ
........................\Proteus Project\shumaguanfangzhen.pdsprj
........................\...............\shumaguanfangzhen.pdsprj.PC201405211826.Administrator.workspace
........................\Keil
........................\Proteus Project
at89c52_3key_Digitaltube
