利用89c51和8253可以测速，经初步测试可以通过

基于STC12C5412AD单片机的简易存储示波器设计-STC12C5412AD based on the simple single-chip design storage oscilloscope

周立功公司推广的一个小型实时嵌入式操作系统，适合在51或AVR等单片机上使用。压缩包里包括系统源代码和一个在51下移植的例子。在KEILC51下开发-weeks meritorious promotion company of a small real-time embedded operating system, for the other 51 or AVR microcontroller use. Compression bundle including system source code and the next one in 51 transplant examples. Under development in KEILC51

51单片机的最小系统版，带串口，ds1302，1602,ds18b20,键盘，数码管，ISP在线下载-51 SCM minimum system version, with serial, ds1302, 1602, ds18b20, keyboards, digital tube, ISP online download

DS18B20 source file for msp430 ,thanks!

usb下载线，可以完全取代并口下载，为没有并口的笔记本提供方便。-usb download cable, you can completely replace the parallel port to download, there is no parallel port for the notebook with ease.

麦迪工作室51单片机开发板键盘的驱动代码。设计了抬键监听机制，防止一次按键多次触发。-Madison Studio 51 MCU development board keyboard-driven code. Designed to raise key monitoring mechanism to prevent a key trigger several times.

一个电话报警系统源码 /*------------- 泰兴电子集团 ------------------ *---------------------------------------------- *文件名: Main.C *开发： www.at90s1200.go.nease.net *创建日期: 2004-6-30 16:19 *创建人： 尹刚 *功能: 主程序-a telephone warning system source /*------------- Taixing Electronics Group------------------*----------------------------------------------* File Name : Main.C* Developer : www. at90s1200.go.nease.net* Create Date : 2004-6-30 16:19* Created by :* gang functions : main program

NEC 3.5 lcd 驱动原理图-NEC 3.5 lcd driver schematic

C8051F020单片机步进电机控制源程序-C8051F020 stepper motor control source

用vb写的能够查看所有系统进程和进程所加载的模块-Using vb to write the be able to view all system processes and process modules loaded