PIC16F877

用交叉串口线连接两块单片机进行双机通信，扫描到有键按下时，键值发送出去，另一块板收到后以0-F方式显示在数码管上。-With cross-serial cable to connect two pairs of aircraft communications microcontroller to scan that there are key is pressed, the key to send out another one after the board received 0-F are displayed in the digital pipe.

脉冲发生测试.此程序为AD9850（DDS）直接数字频率合成器C语言源码。用125M的有源晶振，频率无失真输出可达到40M。-Impulse test. This procedure for the AD9850 (DDS) Direct Digital Frequency Synthesizer C language source code. With 125M active crystal, the frequency output can be achieved without distortion 40M.

基于MCU51与直接数字频率合成芯便AD9850产生5HZ正弦波源程序-Based on MCU51 with Direct Digital Synthesis core will have a 5Hz sine wave source AD9850

这是一个msp430单片机与上位机通信的程序，是用IAR编程环境开发的，是C语言代码，非常好用-This is a MSP430 MCU and host computer communication procedure is the use of IAR development programming environment is C language code, very easy to use

93C46读写程序 很不错的程序希望和大家一起交流-93C46 literacy procedure very well and we hope that the procedures together exchanges

硬盘接口线的定义，作单片机的-line drive interface definition, look for SCM

用定时器和控制端口,定时扫描,实现多种流水效果-With timer and control of ports, timing scan, to achieve a variety of water effects

介绍单片机外围电路设计的一本基础书，做电子设计的朋友不可或缺的资料。-Introduced single-chip peripheral circuits design based on a book, to do electronic design information indispensable friend.

msp430的c语言例程，基本的程序都有，可以用作试验-Controller c routines language, the basic processes that can be used to test

dds控制字的详细描述，对新手入门有帮助。-dds a detailed description of control characters, beginners learn to be helpful.