Included basic embedded concept documents. Its been explained fantastically with simple english. Have read many embedded documents, But the embedded concept explained here is simple, basic and to the point.

some pdf files describing about PLC concepts and components.

关于嵌入式方面的资料，介绍虚拟电路的文档资料，如果有需要的可以下载-On the embedded information, introduce virtual circuit documentation, and if necessary can be downloaded

up-tech公司的arm3000开发板的uclinux配套教程-up-tech companies arm3000 development boards supporting the Basis Guide

ATA（IDE）/ATAPI最初用于智能的设备/工具，称为与主机的串行接口

2005/9 Windriver Linux development tools training-2005/9 Windriver Linux development tools training

stc52单片机红外线的例子，教你如何编程-single-chip infrared stc52 example, teach you how to program

2.4内核的arm2410的dm9000驱动代码，参考革新2410实验箱上的代码改写的！-2.4 kernel arm2410 the dm9000 driver code, refer to the experimental box innovation 2410 rewrite of the code!

《The Art of Designing Embedded Systems(设计嵌入式系统的艺术)》,不可多得的好书，与你分享。-"The Art of Designing Embedded Systems (Embedded System Design Art)," rare books to share with you.