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说明： 这是个高精度的信号源，能够实现正弦波，可控占空比的方波等幅度和频率都可以调节的实物代码。决对可行。
(This is a high-precision signal source, it is possible to achieve a sine wave, controlled duty cycle square wave amplitude and frequency can be adjusted physical code. Absolutely feasible.)
(This is a high-precision signal source, it is possible to achieve a sine wave, controlled duty cycle square wave amplitude and frequency can be adjusted physical code. Absolutely feasible.)
文件列表：
高精度单片机频率计的设计
........................\元器件.txt,644,2010-07-10
........................\测信号周期法
........................\............\1602_Drive.h,3725,2008-12-02
........................\............\Backup Of FreqTest.DBK,61711,2008-12-02
........................\............\FreqTest.c,1960,2008-12-16
........................\............\FreqTest.DSN,64571,2008-12-02
........................\............\FreqTest.hex,3033,2008-12-02
........................\............\FreqTest.lnp,33,2008-12-16
........................\............\FreqTest.ls1,48997,2008-12-02
........................\............\FreqTest.LST,4704,2008-12-16
........................\............\FreqTest.M51,355,2008-12-16
........................\............\FreqTest.OBJ,10261,2008-12-16
........................\............\FreqTest.Opt,1711,2008-12-16
........................\............\FreqTest.plg,852,2008-12-16
........................\............\FreqTest.PWI,1001,2010-07-10
........................\............\FreqTest.Uv2,1749,2008-12-16
........................\............\FreqTest_Opt.Bak,1721,2008-12-16
........................\............\FreqTest_Uv2.Bak,2129,2008-12-16
........................\............\Last Loaded FreqTest.DBK,64578,2008-12-02
........................\计跳沿次数法（高精度）
........................\......................\1602_Drive.h,3647,2008-12-02
........................\......................\Backup Of FreqTest.DBK,61711,2008-12-02
........................\......................\Backup of freqtest.Sch,12919,2008-12-03
........................\......................\FreqTest,9138,2008-12-16
........................\......................\freqtest.Bkp,237568,2008-12-03
........................\......................\FreqTest.c,2485,2008-12-16
........................\......................\freqtest.ddb,212992,2016-02-20
........................\......................\FreqTest.DSN,64578,2008-12-16
........................\......................\FreqTest.hex,1988,2008-12-16
........................\......................\FreqTest.lnp,33,2008-12-16
........................\......................\FreqTest.ls1,48997,2008-12-02
........................\......................\FreqTest.LST,5510,2008-12-16
........................\......................\FreqTest.M51,12716,2008-12-16
........................\......................\FreqTest.OBJ,10974,2008-12-16
........................\......................\FreqTest.Opt,1533,2008-12-16
........................\......................\FreqTest.plg,188,2008-12-16
........................\......................\FreqTest.PWI,832,2010-07-03
........................\......................\FreqTest.Uv2,2084,2008-12-16
........................\......................\FreqTest_Opt.Bak,1533,2008-12-16
........................\......................\FreqTest_Uv2.Bak,2130,2008-12-16
........................\......................\Last Loaded FreqTest.DBK,64578,2008-12-16
........................\......................\Previous Backup of freqtest.Sch,12887,2008-12-03
........................\高精度单片机频率计的设计.doc,355328,2008-12-03
........................\元器件.txt,644,2010-07-10
........................\测信号周期法
........................\............\1602_Drive.h,3725,2008-12-02
........................\............\Backup Of FreqTest.DBK,61711,2008-12-02
........................\............\FreqTest.c,1960,2008-12-16
........................\............\FreqTest.DSN,64571,2008-12-02
........................\............\FreqTest.hex,3033,2008-12-02
........................\............\FreqTest.lnp,33,2008-12-16
........................\............\FreqTest.ls1,48997,2008-12-02
........................\............\FreqTest.LST,4704,2008-12-16
........................\............\FreqTest.M51,355,2008-12-16
........................\............\FreqTest.OBJ,10261,2008-12-16
........................\............\FreqTest.Opt,1711,2008-12-16
........................\............\FreqTest.plg,852,2008-12-16
........................\............\FreqTest.PWI,1001,2010-07-10
........................\............\FreqTest.Uv2,1749,2008-12-16
........................\............\FreqTest_Opt.Bak,1721,2008-12-16
........................\............\FreqTest_Uv2.Bak,2129,2008-12-16
........................\............\Last Loaded FreqTest.DBK,64578,2008-12-02
........................\计跳沿次数法（高精度）
........................\......................\1602_Drive.h,3647,2008-12-02
........................\......................\Backup Of FreqTest.DBK,61711,2008-12-02
........................\......................\Backup of freqtest.Sch,12919,2008-12-03
........................\......................\FreqTest,9138,2008-12-16
........................\......................\freqtest.Bkp,237568,2008-12-03
........................\......................\FreqTest.c,2485,2008-12-16
........................\......................\freqtest.ddb,212992,2016-02-20
........................\......................\FreqTest.DSN,64578,2008-12-16
........................\......................\FreqTest.hex,1988,2008-12-16
........................\......................\FreqTest.lnp,33,2008-12-16
........................\......................\FreqTest.ls1,48997,2008-12-02
........................\......................\FreqTest.LST,5510,2008-12-16
........................\......................\FreqTest.M51,12716,2008-12-16
........................\......................\FreqTest.OBJ,10974,2008-12-16
........................\......................\FreqTest.Opt,1533,2008-12-16
........................\......................\FreqTest.plg,188,2008-12-16
........................\......................\FreqTest.PWI,832,2010-07-03
........................\......................\FreqTest.Uv2,2084,2008-12-16
........................\......................\FreqTest_Opt.Bak,1533,2008-12-16
........................\......................\FreqTest_Uv2.Bak,2130,2008-12-16
........................\......................\Last Loaded FreqTest.DBK,64578,2008-12-16
........................\......................\Previous Backup of freqtest.Sch,12887,2008-12-03
........................\高精度单片机频率计的设计.doc,355328,2008-12-03
