一个VFW的视频捕捉系统，适用于标准usb接口的视频流的显示，在Vc中实现，可以很好的进行移植。...

usb芯片访问外设――usb和1553b总线的接口访问时序。-USB chip interfaces peripheral through 1553b bus, interface timing.

PDIUSBD12套件说明及源码-PDIUSBD12 Boards descriptions and source

usb与RS232之间的通信，包括主机程序，固件源程序。采用HID类！我现在需要USB键盘方面的源程序，如果你有请提供crzman@163.com-between USB and RS232 communications, including mainframe procedures, firmware source. Using HID category! I now need a USB keyboard aspects of the source, if you have please provide crzman@163.com

演示CY7C68013如何接受OUT包的源程序-Source code to demo how CY7C68013 to receive OUT packege.

USB d12 驱动-USB Drive

用于ARM7 S3C44B0 CPU的USB C源程序内有使用说明。-USB C source code for ARM7 S3C44B0 CPU, user mahual included.

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.

some examples of LCD dit display via USB

CH375 USB接口协议芯片MSP430平台下的实例程序-CH375 USB interface chip MSP430 platform agreement under the procedure instance

USB上位机驱动的DEMO程序源代码,基于ARM或其它下位机的上位机驱动-USB PC DEMO-driven source code, based on the ARM or other under the upper-bit machine driver