USB 芯片的电路及PCB 设计的重要注意事项,对USB可靠性设计有很大帮助.-USB chip circuit and PCB design Important Note on USB reliability design has been inspired by them.

这是我设计的一个图书馆管理系统,请贵站给予指点和评析-This is my design of a library management system, please Guizhan give guidance and assessment

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.

DS9200嵌入式开发平台的原理图，模块化的，大家可以参考-Embedded Development Platform DS9200 schematics, modular, everyone can refer to

GPS应用程序设计,它包括了GPS应用和开发中全部常用的内容. -GPS application design, which includes the GPS application and development of all the commonly used content.

一种利用SPC3实现PROFIBUS-DP和modbus通讯的方法。-Achieved by means of a SPC3 PROFIBUS-DP and modbus communication methods.

这也是一个很不错的技术文档 关于FPGA-This is a very good technical documentation on the FPGA

Ingenic Jz4740 CPU SPEC

本文的电子密码锁利用数字逻辑电路，实现对门的电子控制，并且有各种附加电路保证电路能够安全工作，有极高的安全系数。 -In this paper, the electronic code lock using digital logic circuits, the realization of the electronic door control, and a variety of additional circuitry to ensure the safety circuit can work in very high safety factor.

版权所有2004 Sergiu Dumitriu，Marta Gî rdea，C&ŧ259 t&ŧ259 lin Hri&ţ355 cu根据GNU Free Documentation License 1.2版或自由软件基金会发布的任何更高版本的条款，授予复制、分发和/或修改本文档的许可，不包含固定章节、封面文本，没有封底短信。许可证副本包含在“GNU免费文档许可证”一节中，所有品牌名称、产品名称或商标均属于其各自的持有人。