该文档提供了对基于新华龙的BTF340开发评估板USB通信程序的分析，仅供参考。...

LPC214xLPC_USB,固件程序,周立功的,就不用我评价了吧-LPC214xLPC_USB, firmware, Zhou Li-gong, and I would not have evaluated it

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

Bulk-Only协议及其实现,一份不错的USB资料-Bulk-Only the agreement and its implementation, a USB good information! !

CH375 是一个USB总线的通用接口芯片，支持USB-HOST主机方式和USB-DEVICE/SLAVE 设备方式。-CH375 is a common USB bus interface chip to support USB-HOST host of ways and means USB-DEVICE/SLAVE equipment.

usb通用驱动 驱动通用的usb设备 vc环境下-generic usb driver usb generic device driver vc environment

at91sam9261 usb 功能测试程序。iar工程格式-at91sam9261 usb functional test procedures. iar project format

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

usb通信协议和原代码usb_readers-usb communication protocol and the original code usb_readers

实现从Pc中通过usb口读取数据，能够显示usb设备的相关信息。-From a Pc to read data through usb port, usb device can display the relevant information.

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