运动控制仿真实验：双闭环直流调速资料，珍贵。

信号灯受一个启动开关控制，当启动开关接通时，系统开始正常工作，且先南北红灯亮，东西绿灯亮；当启动开关断开时，所有信号灯熄灭；南北绿灯和东西绿灯不能同时亮，如果同时亮则应报警后关闭信号灯系统。-To start signal by a switch control, when the start switch connected to the system started to work, and the first north-south red light, green things when the start switch off all lights extinguished north-south and east-west green light green light can not be at the same time, if At the same time, bright lights should be shut down after alarm system.

This schematic and Gerber files of PCB that is used for GSM alarm system. This is industrial-grade system with many features like 1-wire (iButton) interface, additional interface for video camera (UART JPEG camera is used), SD card to store pictures from camera and send them by GSM to remote mobile phone. Can be used as a reference design for anyone who wants to make own GSM alarm system system based on SIM300C module from Simcom.-This is schematic and Gerber files of PCB that is used for GSM alarm system. This is industrial-grade system with many features like 1-wire (iButton) interface, additional interface for video camera (UART JPEG camera is used), SD card to store pictures from camera and send them by GSM to remote mobile phone. Can be used as a reference design for anyone who wants to make own GSM alarm system system based on SIM300C module from Simcom.

详细讲述嵌入式系统构建的全过程，使用u－boot作为bootloader，2.6版本的linux作为系统内核，详细而深入，强-detail Embedded System Construction of the entire process, Use u-boot as Bootloader, the 2.6 version of Linux as the kernel. detailed and in-depth, strong!

How to build First-Generation Wireless USB Devices-First-Generation Wireless U.S. B Devices

MAX II CPLD具有灵活的可编程接口，合并了分立的FLASH存储器件，能快速和容易地配置FPGA，DSP，ASIC等。本中文手册将让用户对CPLD有一个宏观的认识。-MAX II CPLD with a flexible programmable interface, the merger of the separation of FLASH memory, can quickly and easily configure the FPGA, DSP, ASIC, etc.. Chinese manual will allow users to have a macro on the CPLD awareness.

一个不错的案例运行典范，实际操作的手册，关键步骤的说明-a good example of the operation of cases, the actual operation of the manual steps of the key

freeway合作嵌入平台开发IC_图纸-freeway embedded platform development cooperation IC_ drawings

spartan3的一个开发板的原理图，国内一个公司制作的，值得看一下-spartan3 of a development board schematics, a domestic production company, is worth a look at

PCI总线详细学习资料，共7个文档，全面了解PCI总线-PCI bus more learning materials, a total of seven documents, a comprehensive understanding of PCI bus

一个基于485总线的抢答器系统的设计文档，参加电子竞赛的论文。-based on a 485 bus Responder system design documentation, to participate in the electronic race theses.