Singlechip do with 51 digital frequency meter, the accuracy is very high, counting error of less than 1Hz. Range 0- 65535.

高精度单片机频率计的设计
........................\测信号周期法
........................\............\1602_Drive.h
........................\............\Backup Of FreqTest.DBK
........................\............\FreqTest.c
........................\............\FreqTest.DSN
........................\............\FreqTest.hex
........................\............\FreqTest.lnp
........................\............\FreqTest.ls1
........................\............\FreqTest.LST
........................\............\FreqTest.M51
........................\............\FreqTest.OBJ
........................\............\FreqTest.Opt
........................\............\FreqTest.plg
........................\............\FreqTest.PWI
........................\............\FreqTest.SDF
........................\............\FreqTest.Uv2
........................\............\FreqTest_Opt.Bak
........................\............\FreqTest_Uv2.Bak
........................\............\Last Loaded FreqTest.DBK


........................\计跳沿次数法（高精度）

........................\......................\1602_Drive.h
........................\......................\Backup Of FreqTest.DBK
........................\......................\Backup of freqtest.Sch
........................\......................\FreqTest
........................\......................\freqtest.Bkp
........................\......................\FreqTest.c
........................\......................\freqtest.ddb
........................\......................\FreqTest.DSN
........................\......................\FreqTest.hex
........................\......................\FreqTest.lnp
........................\......................\FreqTest.ls1
........................\......................\FreqTest.LST
........................\......................\FreqTest.M51
........................\......................\FreqTest.OBJ
........................\......................\FreqTest.Opt
........................\......................\FreqTest.plg
........................\......................\FreqTest.PWI
........................\......................\FreqTest.Uv2
........................\......................\FreqTest_Opt.Bak
........................\......................\FreqTest_Uv2.Bak
........................\......................\Last Loaded FreqTest.DBK
........................\......................\Previous Backup of freqtest.Sch


........................\高精度单片机频率计的设计.doc

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