能准确测量输入频率，配备相应的C语言程序。

51定时器初始值计算器(初学单片机的好工具)-51 timer starting value calculator (begins studies monolithic integrated circuit good tool)

51单片机实现电梯仿真及其程序，51单片机实现电梯仿真及其程序-51 single-chip simulation and procedures to achieve the lift, plus sub-ah

制版软件PROTEL99的封装库文件,-Engraving Software package library file PROTEL99

ARM7的一些程序代码,有点帮助,可以下来-ARM7 some code, a little help can be down Rare

一个基于mc9s12dg128b，时间捕捉器的示例代码-Based on mc9s12dg128b, time catcher of the sample code

用硬件协议栈芯片w3100a实现tcp服务器，用51单片机实现 kei51环境-hardware protocol stack chips w3100a achieve tcp servers, with 51 MCU environment kei51

89c51详细介绍-89c51 in detail introduced

基于FPGA的ds18b20数字温度采集，verilog 编写-du to fpga ds18b20

NS2教程――非常适合初学者学习使用的一本好教程-NS2 Tutorial- very suitable for beginners to learn to use a good tutorial

红外遥控编码资料，非常详细，值得参考，里面包括了很多遥控器的编码信息-Infrared remote control coding information, very detailed, it is also useful, which includes a lot of remote control coding information