可以检测你开发的USB设备是否OK的一个程序

一个简单的usb键盘驱动-a simple USB Keyboard Driver

USB驱动传输数据握手的例程。还有类似的很多程序，需要的话请留言免费赠送。-USB drive to transfer data handshake routines.

Eypress EZUSB 系列,在PC端下载目标文件,可以不用EEP-ROM了,节省成本,方便调试-Eypress EZUSB series, the PC-download the target file, it is not necessary for EEP-ROM, cost savings, facilitate debugging

USB的协议介绍：包含USB主机协议、USB集线器协议、USB设备协议。-Introduction of the agreement USB: USB host agreement included, USB hub agreement, USB equipment agreement.

USB的具体细节和他的使用方法还有接口电路设计-USB

arm7下面控制D12的程序源码，该源码在s3c44b0下通过测试。-ARM7 below D12 control procedures source, the source code under the s3c44b0 pass the test.

USB终端的设置代码-USB terminal configuration code

USB设备端固件程序,枚举部分是全部程序的基础和重心,只有主机对设备枚举成功后,主机才能和设备进行正常的通信 USB的枚举过程分为4个状态. 1.接入态 v主机检测到USB设备插上,击活端口,并发送复位命令(保持10ms) 2.默认态 v主机使用默认地址读取设备描述符 (GET_DESCRIPTOR) v主机分配给设备一个总在线的唯一地址 (SET_ADDRESS) 3.地址态 v主机从新的地址获取设备描述符(GET_DESCRIPTOR) v主机获取所有设备的配置描述符(GET_DESCRIPTOR) 4.配置态 v主机设置描述符(设备,配置) (SET_CONFIGURATION) v主机读取配置状态(可选) (GET_CONFIGURATION) v主机读取接口状态(可选) (GET_INTERFACE) -USB device-side firmware, enumerate all part of the foundation and focus of the procedure, only the host of equipment after the successful enumeration, the host and equipment in order to engage in normal communication USB enumeration process is divided into four status. 1. Access state v host detected USB devices plug in, hit live ports, and send the reset command (to maintain 10ms) 2. default state v Use the default address of the host to read device descriptor (GET_DESCRIPTOR) v host assigned to the equipment of a total online only Address (SET_ADDRESS) 3. A

PDIUSBD12 常见问题解答-PDIUSBD12 FAQ

ARM7+D12开发U盘的资料(中文)，想用来玩u盘的同志们下载看看吧-ARM7 development of the U-D12 information (Chinese), would like to play for the u-download comrades see it