一个单片机的原理图啊 ，用protel打开。网上当的

单片机最小系统原理图.protel绘制的.比较经典.-The smallest single-chip microcomputer system schematic. Protel drawn. Comparison of the classic.

CS5532程序开发，适用于电子测量和工业控制-CS5532 program development, apply to electronic measurement and industrial control

利用脉冲控制伺服电机运转，伺服电机频率通过改变定时器初值来控制-The use of pulsed operation of servo motor control, servo motors by changing the timer frequency to control the initial value

这是一个对proteus的介绍的pdf文件，对入门级人物是个很好的帮助-Proteus This is a pdf file of the presentation of the entry-level people is a very good help

pwm改变占空比的程序，已调试过，可以直接用KEIL使用-pwm duty cycle to change the procedures have been debug, and can be directly used by KEIL

在单片机向实际系统发出控制信号时,需用数模转换芯片将数字信号转成模拟信号.这个程序和原理图详细说明了DA转换器的应用和开发.-In SCM systems to the actual control signal, the required digital-to-analog converter chip digital signal into analog signal. This procedure and schematic diagram detailing the application of DA converters and development.

用C语言实现的1602液晶显示程序，程序已经调试好了-Using C language program of the 1602 liquid crystal display, the program has good debugging

这是一个通信程序，用的51单片机系统，用它可以实现弹片机相互连接相互通信的作用-This is a communication program, the 51 SCM system, it can be achieved with shrapnel machine connected to the role of mutual communication

STM32F103VBT6 实现SRAM -STM32F103VBT6 realize SRAM

PIC系列单片机典型应用程序集，包括很多的应用程序，值得去研究一下-PIC MCU typical applications, including many applications, it is worth to look