此为友善之臂micro2440板的底板原理图，更新时间是2009年2月28日。...

实时时钟芯片DS1302的C51程序列子-real-time clock chip DS1302 the C51 procedures Liezi

keilc51编译的51单片机读条码枪源程序-keilc51 compiled 51 microcontroller read barcode gun source

利用51单片机控制1602读写，方便易懂实用-51??1602д ?? ??

ZLG7289键盘显示接口芯片是一个很常用的接口芯片，至需4个IO口接可以控制显示8位的数码管显示和64个矩阵键盘的自动扫描，效果很好。-ZLG7289 keyboard display interface chip is a very common interface chip, to take four IO access can be controlled mouth shows 8 digital tube display and keyboard matrix 64 automatically scans, very good.

各种51单片机源程序集，包括浮点数的计算，多字节的加减等算法的实现-SCM source scripts, including floating point calculations, multi-byte such as addition and subtraction algorithm implementation

十分经典的开源反编译工具，基本上是所有开源反编译工具中最好的一个-err

用SST89C58,对微型打印机和液晶的显示-With SST89C58, on the micro-printer and liquid crystal display

由51单片机与12864组成 俄罗斯方块游戏程序 keil工程 -From 51 single-chip component and 12864 procedures keil Tetris game works

2003年全国大学生电子设计竞赛试题。设计分为5个模块：前轮PWM驱动电路、后轮PWM驱动电路、轨迹探测模块、障碍物探测模块、光源探测模块。有完整的设计实现及报告说明-2003 National Undergraduate Electronic Design Contest questions. Design is divided into five modules : front-wheel drive PWM circuit, rear-wheel drive PWM circuit, track detection module, module detect obstructions, light detection module. A complete design and realization report

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