The accuracy and stability of the digital clock are much higher than that of the old mechanical clock. In this design, we only use LED digital display to display the second highest seconds for 99 seconds, according to the principle of dynamic display of digital tube to display oscillation pulse with C52 microcontroller, based on 12MHz crystal.

秒表\main.c
秒表\template
秒表\template.hex
秒表\template.uvopt
秒表\template.uvproj
秒表

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