这是一个播放音乐的程序，at51 的mcu，已经调试通过，

AT89S51读写I2C总线实验之1602液晶显示 单片机对I2C总线的读写在实际的测量中有很大的作用，比如用AT24CXX系列存储实验数据等，现用AT89S51读写24C02，为了使得读出的数据能直观的表达，所以用1602液晶显示。 -AT89S51 read and write I2C bus of the 1602 experimental single-chip LCD to read and write on the I2C bus in the actual measurement has a significant role, such as the use of experimental data storage AT24CXX series, are currently using AT89S51 literacy 24C02, in order to make read out the expression of visual data, so use 1602 liquid crystal display.

这个是128×64的液晶屏的读写程序，控制芯片是ks0107和ks0108.-This is a 128 × 64 LCD screen to read and write procedures to control the chip is ks0107 and ks0108.

单片机最小系统，包括时钟电路，复位电路，按键电路，显示电路。包括源程序-The smallest single-chip microcomputer system, including the clock circuit, reset circuit, key circuit, display circuit. Including source code

AD8933方波、正弦波、三角波

液晶资料大全，下了看看吧。-LCD information Daquan, with a look at it.

我们实验室智能小车源码，含PID算法等。当然只是一个C文件而已，没有工程，只是提供给大家一个参考-Intelligent Vehicle-source our lab, including PID algorithm. Of course it is just a C file, there is no project, only a reference to the U.S.

基于AT89C2051单片机控制DS18B20传感器的数字温度计，内有软件仿真-AT89C2051-based single-chip sensor control DS18B20 digital thermometer with a software simulation

AVR单片机的优化RC6 加密算法（速度快，其优化思想绝对值得学习） 在有128bytes RAM 的AVR单片机上执行 rc6 16/10/8(16 bit/10 rounds/8 bytes keys) * 对多数代码进行了 C 语言优化，对数据相关循环移位，模乘等用ASM优化 * 在4MHz无乘法器的AVR上得到平均 1172 Bytes/s的加解密速度。 * 编译器: AVR-G-AVR optimization RC6 encryption algorithm (faster, optimizing their thinking definitely worth learning) 128bytes of RAM in the AVR on the implementation of production 16/10/8 (16 bit/10 rounds/8 bytes keys)* for the majority of code optimization of the C language the data related to cycle shift, mode used by other optimization* ASM 4MHz without the multiplier be average AVR 1172 Bytes/s speed encryption and decryption.* Compiler : AVR-G

C8051FXXXX的一个开发例程，对于接触C8051F12X的开发者比较有用，可以下载看一下-C8051FXXXX development of a routine, contact C8051F12X developers more useful, can be downloaded to look at

用MCS51系列单片机开发的交通灯控制程序-MCS51 series single-chip with the development of the traffic lights control procedures