CH372 是一个USB 总线的通用设备接口芯片，是CH371的升级产品，是CH375芯片的功能简化版。在本地端，CH372 具有8 位数据总线和读、写、片选控...

USB2_0原理与工程开发超星图书。看了这里还么有。-usb2.0 princple and project development。--SSREADER4

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

some examples of AD DA convertion by EZUSB

开发USB实验系统比较纤细的资料。用的是372，USB从方式。支持IAP功能。-USB experimental system developed relatively slim information. Using a 372, USB from the way. IAP support functions.

这是51读写U盘源程序和原理图,希望对开发USB的兄弟一些参考.-Source code for USB mass storage read/write with description.

监测U盘拔插 可以检测到U盘的插入和拔出动作-U disk monitoring can detect the U-swappable disk insertion and pull-out action

V551 USB Motorola drivers

usb2.0芯片68013的设备驱动程序,可以很可以实现对68013的各种操作，并且很容易修改以满足自己的需求。-68013 chip USB 2.0 device driver, can be achieved for the various operational 68,013, and easily modified to meet their demands.

EZ-USB采集数据的固件程序-EZ-USB data acquisition firmware procedures

ds1620，cy7c63001a芯片usb接口温度控制器-a controler made by ds1620 and cy7c630001a,it is used for control the temperator