用VC++编写的USB接口通信程序，供大家参考，

yusuf ozturk goı ng a electronik engineering departman of gebze high technology of enstitue. end this fileis c++ decument of pic 18f4550 - yusuf ozturk goı ng a electronik engineering departman of gebze high technology of enstitue. end this fileis c++ decument of pic 18f4550

usb 驱动例子-USB driver sample code.

USB通信协议和U盘固件程序实现与调试-U disk USB communication protocols and procedures for implementation and debugging firmware

usb_232（仅枚举）-usb_232 (only Enumeration)

ERP企业资源管理软件开发知识教育文章， 对于欲要了解ERP知识的同人有所帮助。 -ERP enterprise resource management software development knowledge education article, for wishing to understand ERP knowledge help colleagues.

vb-usb驱动的源代码有需要的就下吧。-vb-ubs

usb驱动程序代码-usb driver code

Delphi USB 访问的单元的源代码。 -visit Delphi USB module source code.

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.

微软的USB开发包 -Microsoft"s USB development kit