C51单片机无源蜂鸣器音阶频率对照表

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1、C51单片机无源蜂鸣器音阶频率对照表1、本对照表适用于C51系列单片机，实现音码频率和C51定时器设置对应；2、本对照表频率设置适用于无源蜂鸣器；3、本对照表实现99个音码频率对照，跨8个八度；4、若需要word版和带公式的excel版，请联系我们索取。此外使用过程中有任何疑问，可发送邮件共同探讨！邮箱:zhihuasc@163.com2018年6月22日星期五By：zhihua音阶频率表（单位赫兹hz）123456789A27.555110220440880176035207040#A29.13558.27116.541233.082466.164932

2、.3281864.6553729.317458.62B30.86861.735123.471246.942493.883987.7671975.5333951.0667902.132C32.70365.406130.813261.626523.2511046.5022093.0044186.009#C34.64869.296138.591277.183554.3651108.7312217.4614434.922D36.70873.416146.832293.665587.331174.6592349.3184698.636#D38.89177.78215

3、5.563311.127622.2541244.5982489.0164978.032E41.20382.407164.814329.629659.2551318.522637.025274.04F43.65487.307174.614349.228698.4561396.9132793.8265587.652#F46.24992.499184.997369.994739.9891479.9782959.9555919.91G48.99997.999195.998391.995783.9911567.9823135.4376270.874#G51.9131

4、03.826207.652415.305830.6091661.2193322.4376644.874注：绿色部分为钢琴88键常用音阶。音阶频率换算12M晶振11.0592M晶振序号音码频率（赫兹HZ）周期（T）12M定时器初值11.0592M定时器初值1A127.536363.6436363.64B8FA33512.73BE8B2#A129.13534322.9834322.98BCF631632.06C2373B130.86832396.0132396.01C0B929856.16C5AF4C132.70330578.2330578.23C446281

5、80.9C8F55#C134.64828861.6928861.69C7A126598.94CC0C6D136.70827242.0227242.02CACA25106.24CEF67#D138.89125712.8925712.89CDC723697D1B78E141.20324270.0824270.08D09822367.3D4509F143.65422907.4122907.41D34221111.47D6C410#F146.24921622.0921622.09D5C419926.92D91411G148.99920408.5820408.58D

6、82318808.55DB4312#G151.9131926319263DA6017752.78DD5313A25518181.8218181.82DC7D16756.36DF4514#A258.2717161.4917161.49DE7B15816.03E11B15B261.73516198.2716198.27E05C14928.32E2D716C265.40615289.1215289.12E22314090.45E47A17#C269.29614430.8514430.85E3D013299.47E60618D273.41613621.011362

7、1.01E56512553.12E77B19#D277.78212856.4412856.44E6E311848.5E8DB20E282.40712134.8912134.89E84C11183.52EA2821F287.30711453.8411453.84E9A110555.85EB6222#F292.49910810.9310810.93EAE29963.351EC8A23G297.99910204.1910204.19EC119404.178EDA124#G2103.8269631.4999631.499ED308876.389EEA925A311

8、09090.9099090.909EE3E8378.182EFA2