这是著名的yampp版本的mp3制作的原理图和源程序，有兴趣的可以试试，程序为c语言-This is the famous yampp mp3 version of the map produced by the principle and source files, are interested can try. procedures for the C Language

一个基于AT89C51的MP3设计，开发环境为KEIL，内部有详细的原理图和源代码，喜欢的朋友可以下载-AT89C51 the MP3-based design, development environment for the KEIL, has detailed internal schematics and source code, friends can enjoy download

国电科技全面开源GD5800 GD5800 GD5801系列 MP3硬件 里面包括PCB，原理图，BOM表，datasheet， 用户只需下载就可以直接导入生产，非常方便，让没有设计能力的公司省去了设计的繁琐。-Guodian Technology comprehensive source GD5800 GD5800 GD5801 Series MP3 hardware Which includes PCB, schematics, BOM table, datasheet,