用vc编写的usb接口编程源代码，可移植性强，

这是51读写U盘源程序和原理图,希望对开发USB的兄弟一些参考.-Source code for USB mass storage read/write with description.

vb控制usb实例,纯vb源代码，该实例需要一定的编程基础。

vb下usb接口通信的实验。-vb under usb interface communications experiment.

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

sl811 Usb驱动-sl811 Usb drives

用ti的dsp2407读写sl811，包括u盘的读写-with the dsp2407 sl811 literacy, including reading and writing u-

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-Net2272 on a usb chip loopback procedure, slightly modified, can be transplanted to your mcu or dsp on

一个毕业生的设计文档，有些经验吸收-graduates of a design documents, to absorb some experience

针对USB 设备或主机开发过程中的调试过程，如果能对协议的过程和细节内容了解地非常清楚，则对于调试过程非常有帮助，就意味着可以预测主机（或设备）下一步应该做什么，此文档目的在于描述控制传输和批量传输的协议细节。-USB device or host

This example firmware is based on Microchip s USB Support Firmware. The purpose of this example is to provide a model for making a USB combination device. This mainly entails having the USB descriptors set up correctly. File usb_ch9.c contains the mouse and keyboard descriptors in the correct configuration. The main routine of this example moves the cursor in a circle and sends keyboard keycodes for the message "Microchip USB" over and over again. Some advice: Before running this firmware open a blank text document. Make sure that when you run the device/emulator that you are able to give focus to the document. The cursor will be moving in a circle so make sure you have plenty of room to click on the editor window. This will allow you to see the message "Microchip USB" without inadvertently having the message type over an existing document.-This example firmware is based on Microchip s USB Support Firmware. The purpose of this exampl