移植好的系统，通过调试－－－－给需要者

基于AD89S52的计算器的实现源程序。-Calculator based on the realization of AD89S52 source.

《手把手教你学单片机的C程序设计》实验程序第4章实验程序-code--4

用汇编程序编写的音乐控制 系统可以选择将近40首歌-procedures used to prepare a compilation of music control system can choose to nearly 40 songs

一个25045看门狗读写程序，可以当EEPROM用哦！-a watchdog 25,045 readers procedures, EEPROM can be used when Oh!

这是基于89C51单片机的实用热水器监视器源程序，程序由汇编语言编写-This is based on the 89C51 of usable water heater monitors source, procedures prepared by the assembly language

PHILIPS非接触射频卡RC500的开发技术资料,-PHILIPS non-contact RF Card RC500 development of information technology,

介绍了使用单片机产生音乐的方法，以及生日歌，祝你平安，八月桂花香的示例程序。-Introduce the use of single-chip generated music methods, and the birthday song, I wish you peace,八月桂花香sample procedures.

刚购买的51单片机sch原理图和c语言程序，里面有详细的电路原理图和c语言程序，自己做单片机学习班的可以下载来参考-Just purchased 51 Singlechip sch schematic and c language program, which has a detailed circuit schematic diagram and c language program, to do their own single-chip learning classes can be downloaded to a reference

ID卡读写 （51的汇编程序）-ID Card Reader (51 compilation procedure)

8路数字电压表,有过流保护,过载保护-8-way digital voltage meter, has over-current protection, overload protection