NandFlash 读写程序，ARM的，可以参考，还不错

凌阳61 串口和usb isp在线调试程序-Sunplus 61 serial and usb isp-line debugger

优盘程序,符合USB1.1规范。硬件平台：ATmega162+PDIUSBD12+K9F5608。软件平台：ICCAVR。协议：Bulk-Only Transport,Reduced block command.-Youpan procedures, in line with standard USB 1.1. Hardware platforms : ATmega162 PDIUSBD12 K9F5608. Software platform : ICCAVR. Agreement : Bulk-Only Transport, Reduced block command.

用于查询PC机上的USB端口是否有设备挂接上，并显示挂接的设备PID,UID。-For inquiries PC, whether there is the USB port mounted on the equipment and show equipment articulated PID, UID.

USB的驱动程序源代码,好东西，大家一起来分享,-USB driver source code, good things, everyone will work together to share

对USB的2.0标准和上位机下位机通讯标准，各部分的结构组成和实现情况进行整理。当时做项目涉及到这部分的知识，所以看了大量的资料，这部分的东西蛮多-For USB 2.0 standards and lower PC communication standards, the various parts of the structure of the composition and finishing realize the situation. At that time, to do projects related to this part of the knowledge, so read a lot of information, this part of the East and West蛮多

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.

PowerPac USB使用手册-PowerPac USB manual. . . . . . . .

basic information for usb developers

该USB资料包包含了USB几个版本的中文协议以及USB开发上的一些技巧，对USB开发有兴趣的可以下载-The USB data packet that contains some version of the USB protocol(in Chinese) and some skills in usb exploitation, anyone that is interest in USB exploitation can download and have a referense

USB的LPM spec,详细描述了LPM状态机和ACK-LPM spec for usb