12864显示程序（AVR串行接口），包括浮点数字显示功能

keil c51 uversion2 中文入门教程-Keil Chinese entry Guide

at24c01和02是串行存储器的经典，学会并应用它对与工业或者学习都有极大的帮助。因此我在此上传它的原理图及其程序。-at24c01 and 02 is a classic serial memory, learn and apply it to industrial or study has a great help. Therefore, I would upload its schematic diagram and its procedures.

crc校验源码，可供C51程序员参考，我目前测试用的32位CRC程序-crc check source code, programmer"s reference for C51, I am currently testing 32-bit CRC procedures

线路板（PCB）级的电磁兼容设计是现代设计高速电路必须考虑的问题，现提供给大家的这个设计方案可以帮大家（电子工程师）很好的解决这个问题。- The line board (PCB) the level electromagnetic compatibility design is a question which the modern design high-speed circuit must consider, presently provides for everybody this design proposal may help everybody (electronic engineer) very good solution this question.

51单片机c语言编程实例及一些经验，很实用的。-51 MCU c language programming examples and some experience, it is practical.

1． 电梯初始位置在第一层。 2． 算法完全模拟电梯工作。 3． 显示电梯所在层数和运动方向。 4． 按键复用，部分按钮在不同的时候表示两种功能。 -1. Elevator initial position in the first layer. 2. Algorithm fully simulated elevator work. 3. Show where the low-rise elevator direction and movement. 4. Key reuse, and some buttons at different times, said two functions.

usb host读写U盘！-usb host U-reader!

介绍详细的8279使用资料及注意事项，包括与单片机的使用及防抖电路-8279 introduced the use of detailed information and attention to matters, including the use of single-chip microcomputer and the Anti-shake circuitry

CS5532的驱动程序，基于AT89S52,调试通过-CS5532 driver, based on AT89S52, debugging through

用51单片机实现简单的音乐播放生日快乐歌。-51 MCU with a simple music player, a happy birthday song.