51个外部中断例程

介绍一种高分辨率的双路A/D转换器AD7711，能满足双路A/D采样要求。内容包括AD7711的特点， 内部寄存器结构和外部接口，并详细阐述了数据采集系统中AD7711与单片机AT89S8252的接口技术，包 括硬件接口电路和软件程序设计及其注意事项。 -Introduce a two-way high-resolution A/D converter AD7711, can satisfy the dual A/D sampling requirements. Include the characteristics of AD7711, the internal register structure and the external interface, and detailed data acquisition system with the AD7711 single-chip AT89S8252 interface technologies, including hardware interface circuit and software design and its attention to matters of procedure.

IEEE 1394 火线协议标准-IEEE 1394 FireWire protocol standards

本资料一共有几十个单片机基本程序代码，并带有详细的说明，非常适合单片机初学者！其实单片机不难学，只要多自己动手编写程序-This information a total of dozens of the basic procedures for single-chip code and a detailed explanation, very suitable for beginners Singlechip! In fact, single-chip is not difficult to learn, so long as more do-it-yourself programming

一个简单的计算器是如何写的，单片机可以做很多智能东西，学习着可以发挥自己的想想，自己动手做一做。-A simple calculator is how to write, single-chip microcomputer can be a lot of smart things to do, learning to play with their own think about to do one to do it yourself.

是基于c8051f040单片机开发的电机转速测试程序。-SCM is based on c8051f040 test procedures developed by the motor speed.

基于凌阳单片机SPE061A的超声波测距程序，具有短距离测距，中距离测距和可调距离测距等三种功能，运用凌阳大学计划所提供的开发板，可以很容易实现障碍物距离的检测-Based on Sunplus SPE061A Singlechip Ultrasonic Ranging procedure, with short-distance ranging, ranging in distance from the rangefinder and adjustable three functions, the use of Sunplus University plans provided by a development board, can easily realize the obstacles Detection of objects distance

多年工作有关PCB绘图的总结，适合初学者学习-Years of work-related summary graphics PCB, suitable for beginners to learn

7541数字高频头源程序，7541数字高频头源程序-7541 digital tuner source, 7541 the first digital high-frequency source

是一个简易的密码锁代码，有基本的密码验证，密码修改等等功能！希望可以帮助有需要的朋友们-Is a simple password lock code, has the basic password authentication, password modification and so on! Hope that we can to help those in need of friends

用2051制作的测试1HZ到1M的频率测试C程序 -2051 produced by the test frequency of 1Hz to 1M test C program