ad0809 some procedures can be used as a number of learning data entry

51汇编用户手册中文版，讲解51汇编指令和应用。-compilation of 51 Chinese version of a user manual, on 51 compilation instructions and applications.

本文介绍了AT89C2051单片机的性能和特点，并在分析了超声波测距原理的基本系统框图。该设计系统经校正后，其测量精度可达0.1米-This paper introduces the AT89C2051 MCU performance and features, and the analysis of the basic principle of ultrasonic distance measurement system block diagram. The design system has been corrected, the measurement accuracy up to 0.1 meters

AVR单片机新版USB下载器的制作全部资料，包括源代码，及原理图（SCH）等。-AVR microcontroller to download a new version of USB devices making all information, including source code, and schematic diagram (SCH) and so on.

对于一个单片机初者来说一定想自己设计一个小系统吧・・这里提供了以89S52为核的小系统图和源程序！希望对刚学者有所帮助-early for a microcontroller were necessarily want to run their own small design a system here to provide it with nuclear 89S52 for the smaller system map and the source! Just want to help scholars

基于89C51的计算机可锁定加密键盘设计带源码-89C51-based computer keyboard lock design with encryption source code

PTR8000发送接收驱动程序。只需在主程序中只需做小小的改动就可以，使用这个模块！！！ -Send PTR8000 receive driver. Only in the main program in only small changes can make use of this module! ! !

这个程序利用89S51演奏生日快乐的歌曲 */-This procedure performed using 89S51 Happy Birthday song* /

C8051F005硬件SPI驱动的AT45DB041B的读写驱动-hardware SPI driver AT45DB041B of C8051F005

基于凌阳和ad9850实现的正弦波信号发生器程序，包含键盘、显示模块程序-Sunplus and the AD9850 based on the realization of the sine wave signal generator procedures, including keyboard, display module procedures

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