基于89S51的IO口模拟串口通信，调试通过。

基于AT89C52和DS3904的程控放大器原理及实现.pdf-Based on AT89C52 and the DS3904 and realize the principle of program-controlled amplifier. Pdf

串口接收，spi口存储到AT45DB161，然后通过命令串口读出-Serial port reception, spi port stored in AT45DB161, and then read out the serial port through the command

智能电话系统的使用说明书 --User manual for smart telephone system.

uC/0S-II 是一种体积小巧而实用的实时操作系统，由于其代码的开放性，近年来普遍受到人们的关注，被应用到各种嵌入式系统中。 本课题要求详细了解uC/0S-II嵌入式实时操作系统的内核，分析如何将uC/0S-II移植到PIC单片机系统上，并给出一个移植的应用实例。 - Transplant uC/0S_II to PIC MCU

Ultra low power touch screen controller manual. Useful for embedded system engineer

周立功LPC2200实验板第三章UCOSii的第三,第四个实验-Week Ligong LPC2200 board UCOSii Chapter III of the third, the fourth experiment

读取usb信息，非常有用，另外还有源码供大家学习之用，真的很不错的-read usb information, very useful, there is another source for all learning, really good

24C04为基础的51单片机仿真I2C总线的程序，适用于初学者参考-24C04-based microcontroller simulation of I2C Bus 51 procedures for advanced users

运用数控机床上的逐点比较插补算法来实现悬挂物体控制系统的画图要求-use of CNC machine tools-by-point comparison of interpolation algorithm to achieve flag objects of the class control system requirements

适用于8位小型嵌入式系统的TCP/IP协议栈！！移植非常方便！-the tcp/ip protocol be available in 8bit embeded system!!transplant conveniency