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

这是我写的一个很不错的时钟程序。用现在流行的Mega16L+DS1302+LM1602组成的年历。-This is what I wrote a very good clock procedures. Now popular with Mega16L+ DS1302+ LM1602 calendar component.