c51下的一个键盘程序，用循环轮训法检测是否有键按下。

应用背景本程序是用在一种开关磁阻电机上的，原理图和功能和无刷直流电机基本一样，只是控制策略不一样，应用于电机拖动，开关磁阻电机价格便宜，但需要配套的控制器关键技术本程序是在网上下载后应用到实际项目中，由于公司规定不能传源码，只有上传部分代码，包含位置检测，速度检测，PID运算，读者可自行修改为自己的程序，另外关键代码都有注释，方便理解

此文件为ipod程序，单片机用的是nec78f0547，用什么单片机我觉得无所为，这是我花了好长时间才弄完的，关键ipod协议太复杂了，贡献出来，希望对有需要的人一个帮助，一些命令我整理好了，在“ipod_procotol.txt”里面。-This file for ipod procedures, single-chip microcomputer is used nec78f0547, what I feel nothing for single-chip, which is I spent a good long time before the弄完key ipod agreement was too complicated, and contribute, in the hope that those who are in need of a help, I have collated a number of orders, and in

EasyARM2104开发套件实时时钟测试源代码。-EasyARM2104 Boards Real Time Clock test source code.

基于单片机步进电机控制正反转，减速以及加速的源代码-Based on single-chip stepper motor control positive, deceleration and acceleration of the source code

用51单片机串口及595制作16X56LED显示屏(土产)-With 51 and 595 produced single-chip serial 16X56LED display (native)

这是本人调用small rtos51的函数来仿真写的基本代码-This is a small rtos51 I call a function to write the basic code simulation

一本有关FPGA设计的经验的汇总，教给大家分享，一本好书-A book about the experience of FPGA design summary, teach everyone to share a good book

开发试验箱的原理图，从事硬件开发的同学可以看看 一定会获益匪浅-The development of chamber of the schematic diagram, the students engaged in hardware development will certainly benefit can look at

C8051F020 东软电力载波集中器命令处理程序-C8051F020 Neusoft Power Line Carrier for order processing

msc1201 编程4-msc1201 S FOURTH PROGRAMMING