51MCU+74HC74,the design of precision frequency meter.It can be accurately measured 1HZ ~ 1MHz frequency signal.

MCU等精度频率计
MCU等精度频率计\code
MCU等精度频率计\code\main(1).c
MCU等精度频率计\code\main(1).LST
MCU等精度频率计\code\main(1).OBJ
MCU等精度频率计\code\main.c
MCU等精度频率计\code\main.LST
MCU等精度频率计\code\main.OBJ
MCU等精度频率计\code\开发板
MCU等精度频率计\code\开发板(1)
MCU等精度频率计\code\开发板(1).hex
MCU等精度频率计\code\开发板(1).lnp
MCU等精度频率计\code\开发板(1).M51
MCU等精度频率计\code\开发板(1).plg
MCU等精度频率计\code\开发板.hex
MCU等精度频率计\code\开发板.lnp
MCU等精度频率计\code\开发板.M51
MCU等精度频率计\code\开发板.plg
MCU等精度频率计\code\开发板.uvopt
MCU等精度频率计\code\开发板.uvproj
MCU等精度频率计\code\开发板_uvopt(1).bak
MCU等精度频率计\code\开发板_uvopt.bak
MCU等精度频率计\code\开发板_uvproj(1).bak
MCU等精度频率计\code\开发板_uvproj.bak
MCU等精度频率计\MCU频率计原理图.pdf

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