介绍了一种利用定时中断为单片机编写高音准的音乐程序的方法，并给出实例程序清单。...

C51中的指针应用之一.rar-C51 target of one application. Rar

全面介绍了高质量PCB设计技巧，共为8章。-A comprehensive introduction to high-quality PCB design techniques, a total of 8 chapters.

C51编制的51单片机DA程序，适用于初学者参考。-C51 prepared by 51 MCU DA procedures to apply to advanced users.

用于接收红外摇控器和异步串行的8051单片机程序-for receiving infrared remote control and asynchronous serial 8051 of the procedures

步进电机调速proteus仿真，KEIL联合-Proteus simulation speed stepper motor, KEIL United

51单片机,精确延时小函数.提供500ms,200ms,10ms,1s的精确延时,直接调用即可.-51 microcontroller, small precision delay function. For 500ms, 200ms, 10ms, the precise 1s delay, can be called directly.

基于超声波的测距仪（包括原理图，程序源码与相关调试说明，以及一些参考资料，总之，开发超声波测距仪的一整套资料）-Based on Ultrasonic Range Finder (including schematics, source code and related procedures for debugging instructions, and some reference materials, in short, develop a set of ultrasonic range finder data)

c8051f020单片机以太网SRAMis62lv2568程序-C8051f020 SCM procedures Ethernet SRAMis62lv2568

C51编写的IC卡读写程序-C51 prepared by the IC card reader procedures

前一阵子做了个IC卡读写程序，可以读写SLE4442系统逻辑加密卡的，本来想在网上找一个，没找到，自己写了一个，为了让后来人可以轻松一点，所以就奉献给大家：） 注释比较少（本人的坏习惯），看起来有点累，不过建议你在自己看之前先熟悉一下SLE4442的协议。 程序是经过测试的，在我的931上工作的很好，有什么问题，发信给我 Ploto_zhu@etang.com-done a while ago, IC card reader procedures, can read and write SLE4442 encryption system logic card, and they would like to find an on-line, could not find himself writing a view to the later can easily point and so on devoted to you :) Notes relatively small (my bad habits), looks a bit tired, but I suggest you look at before their first study SLE4442 agreement. Procedures are tested, in my 931 on the good work and what problems, I wrote to Ploto_zhu@etang.com