C51 用PCA 模拟串口，很有参考价值得源码

关于嵌入式PS2键盘的原理图，基于51单片机的工控键盘。很实用，包括程序，基于Keil的软件程序-On the embedded PS2 keyboard schematics, single-chip microcomputer-based industrial control keyboard 51. Very practical, including the procedures, the software program based on the Keil

有关OSD开发和ADI公司的几款ADC软件控制-OSD-related development and ADI

对家用电扇进行模拟控制，实现自然，正常；快中慢的转换，用8086实现和用直流电机进行模拟实现，附程序-Analog control of the home fans to achieve a natural, normal fast in the slow conversion, with the 8086 implementation and the use of DC motor to simulate to achieve, with a program

通过电脑串口读取传感器数据并进行实时显示-Via the computer serial port to read sensor data and real-time display

9054开发-9054 Development

MSP430单片机FLASH系列的PCB和原理图库，很好用的啊！-MSP430 Flash series and the PCB Principle Gallery, the good ah!

51汇编语言，格式为.chm文件，这个好象就是九十年代初孙涵芳（如果我没记错的话）写的一 本书后附的子程序。子程序不全对，至少有个除法的余数有问题，扩大了2倍，我记不清是哪个了，你把其中的一个左移语句去掉就行了，别的记不得了。欢迎常联系。-51 assembly language format. Chm documentation, It was like the early 1990s-wu (if I remember correctly so) wrote a book attached to the subroutine. Subroutine incomplete right, at least a division of the remaining problems, and expanded two times, I can not remember clearly what is, you put one of these bits removed statement on the visit, other reporters unnerving. Welcome regular contact.

使用PROTEUS仿真的RS232串行通信口,可在串口助手输入,激活7段数码管显示相应的数字-PROTEUS simulation using RS232 serial communication port, serial port assistant in the input, activation of 7 digital tube display the corresponding figure

一个利用51单片机实现对的简易功能的控制cd-rom的程序-A use of 51 single-chip microcomputer to realize the simple function of the control procedures for cd-rom

D/A7513可以用于调试 1602显示器-D/A7513 display 1602 can be used to debug