Digital frequency meter circuit can measure the frequency of the square wave signal of 10Hz to 10KHz, the peak 5V, digital display frequency of the signal.

频率计
......\code
......\....\Frequence
......\....\Frequence.hex
......\....\Frequence.lnp
......\....\Frequence.M51
......\....\Frequence.plg
......\....\Frequence.uvopt
......\....\Frequence.uvproj
......\....\Frequence_uvopt.bak
......\....\Frequence_uvproj.bak
......\....\main.c
......\....\main.LST
......\....\main.OBJ
......\....\main.__i
......\....\STARTUP.A51
......\....\STARTUP.LST
......\....\STARTUP.OBJ
......\....\STARTUP._ia
......\....\Target 1.BAT
......\Proteus
......\.......\Last Loaded 频率计电路.DBK
......\.......\频率计电路.DSN
......\.......\频率计电路.PWI
......\报告pdf
......\.......\任务书.pdf
......\.......\封面.pdf
......\.......\电子线路应用软件训练.pdf
......\报告word
......\........\任务书.doc
......\........\封面.doc
......\........\电子线路应用软件训练.doc

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