ubs通信协议规范中文版，设计UBS时参考。

ez_usb_drv驱动源码 vc工程 -ez_usb_drv driver source code vc project

u盘文件系统，pdf格式，不知大家看到没有。FAT格式，可以参考哦-u-file system, pdf format, I wonder if we do not see. FAT format, they can refer to, oh

printer usb

High volume USB 2.0 devices will be designed using ASIC technology with embedded USB 2.0 support. For full-speed USB devices the operating frequency was low enough to allow data recovery to be handled in a vendors VHDL code, with the ASIC vendor providing only a simple level translator to meet the USB signaling requirements. Today s gate arrays operate comfortably between 30 and 60 MHz. With USB 2.0 signaling running at hundreds of MHz, the existing design methodology must change.

一个用vb开发的源代码-vb development with a source code

高性能USB转串口（可高达10Mbps）完整的源代码-High-performance USB to Serial (up to 10Mbps) complete source code

我用DELPHI写的一个专为EZUSB（2131）系列芯片的DLL。有例子-I used to write an ad for EZUSB (2131) series chip DLL. Examples are

用CY7C630芯片做USB转串口的汇编原程序,里面有编译生成的hex文件.写入芯片就可使用.最高波特率为24-do with CY7C630 chip USB to Serial compilation of the original procedure, which has compiled documents generated hex. The chips can be used. The highest baud rate for 24

一个用keil编写的usb测速软件，通过启动新线程来接受处理数据-Keil prepared using a usb velocimetry software, through the launch of a new thread to accept data processing

基于omap5912平台的usb设备驱动源程序-Omap5912 platform based on the usb device driver source code