基于usb 芯片net2272的一个loopback的程序，稍加修改，即可移植到你的mcu或者dsp上...

关于usbview的程序-procedures on usbview

ez_loader驱动程序源代码（vc工程文件）-ez_loader driver source code (vc project file)

usb芯片设计原理图，包含有USB_1161、1362、1581、PDIUSBD12-usb chip design schematics, contains USB_1161, 1362,1581, PDIUSBD12

USB_UART串口详细资料，初学者的好材料-Serial USB_UART details of a good material for beginners

非常好的的USB 接口程序 基于pic单片机-Very good procedures for the USB interface pic based on single chip

关于LPC2468的DEMO板上USB部分的源代码，可以研究下-DEMO on the LPC2468 board USB part of the source code, can be studied under

USB Manager(usbmgr) 0.4.8 Shuu Yamaguchi Special Helper: Philipp Thomas When USB devices connect to or disconnect from a USB hub, the usbmgr works as the following according to configuration. a) It loads and unloads files Linux kernel modules. b) It execute file to setup USB devices.-USB Manager(usbmgr) 0.4.8 Shuu Yamaguchi Special Helper: Philipp Thomas When USB devices connect to or disconnect from a USB hub, the usbmgr works as the following according to configuration. a) It loads and unloads files Linux kernel modules. b) It execute file to setup USB devices.

about tds510 reference

WWWcam 是一个从基于视频设备的Webcam中抓图，存档，发布图片的工具。通过 CPiA webcam驱动，支持USB或其他端口。除了一般的通过浏览器连接 wwwcam 的功能外，还支持很多特有功能：自调整标题，自动修正亮度，通过和最新图片计较自动判断是否存储图片等-WWWcam is a video-based equipment from the Labs WebCam which Previously, archiving, publishing pictures of the tools. Through CPiA webcam drive, USB or other ports. Apart from the general browser connecting wwwcam functions, also supports many unique features : Self-adjusting title, automatically corrects brightness, and the latest pictures judgment regardless of whether automatic storage pictures

ubs通信协议规范中文版，设计UBS时参考。-usb protocol specification (chinese Edition) , reference matiarials for design USB.