51单片机电子琴和音乐播放C语言源程序， 我是初学者，望大家一起多多交流。写的不好，请见谅！-51 SCM keyboard and music player C language source code, I am a beginner, expect more exchanges with everyone. Badly written, please forgive me!

昨天搞了一天的ADS7818结果现象没调试出来，芯片也弄烧了，郁闷！今天想试试ADC0831,呵呵!没想到一个小时就搞定了，现在拿出来和大家一起分享（仿真和程序都调试好了），里面肯定有一些不足，希望能得到大家的批评指正，在下感激不尽-Yesterday staged a one-day phenomenon ADS7818 results did not debug it, the chip also get burned, depressing! Today want to try ADC08

The Definition of Asterisk is described as follow: Asterisk is a complete PBX in software. It runs on Linux, BSD, Windows (emulated) and provides all of the features you would expect from a PBX and more. Asterisk does voice over IP in four protocol

自己用51单片机作出MP3，很好玩，没想到竟然做到啦。-Myself with 51 single-chip MP3, it is fun, I did not expect to do it.