一些firmeware EZUSB框架实例

一个可以代替USB插拔的软件的源代码-a USB plug can replace the software source 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

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.

用于AVR的USB，工程，自己看看，怎么这么多废话，不过文件有点长-Interface USB with AVR microcontroller.

这个一个usb接口芯片ch372的，上位机（PC）机程序，用vc编写。-this one usb interface chip ch372, PC (PC) Program, prepared using vc.

USB 项目技术报告，是2002 年12 月 北航 frank所做的关于USB协议和开发过程的报告，非常详细。 -USB project technical report is December 2002 BUAA frank done on the USB protocol and the report of the development process, very detailed.

ERP企业资源管理软件开发知识教育文章， 对于欲要了解ERP知识的同人有所帮助。 -ERP enterprise resource management software development knowledge education article, for wishing to understand ERP knowledge help colleagues.

USB主机端的c语言代码，控制USB的主控器-USB host the c-language code, the master control USB

ActiveX示例

功能为：怎样将从摄像USB发来的像素数据转换为BMP文件-Function is: how will be sent USB camera pixel data into a BMP file