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USB设备
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
- 2022-01-21 17:52:38下载
- 积分：1
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usb HID类设备通讯源程序
usb HID类设备通讯源程序-USB HID source category communications equipment
- 2022-03-03 11:36:14下载
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USB transfer files example
USB传输文件实例-USB transfer files example
- 2022-08-12 22:27:33下载
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USB implement based on FPGA, including program and schematic circuit diagram. Sh...
基于fpga的usb实现，包含简介，程序，原理图，与大家分享！-USB implement based on FPGA, including program and schematic circuit diagram. Share with all you.
- 2022-10-13 09:35:03下载
- 积分：1
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USB接口芯片CY7C68013上位机通信程序，
usb芯片cy7c68013通信上位机程序，-usb chip cy7c68013 PC communications procedures,
- 2022-03-24 14:17:46下载
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windows下识别usb逻辑盘的程序
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- 2022-03-23 11:27:08下载
- 积分：1
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USB 0.4.8经理（usbmgr）shuu山口<；shuu @ wondernetworkresources.com >；……
USB Manager(usbmgr) 0.4.8 Shuu Yamaguchi Special Helper: Philipp Thomas When USB devices connect to or disconnect from a USB hub, the usbmgr works as the following according to configuration. a) It loads and unloads files Linux kernel modules. b) It execute file to setup USB devices.-USB Manager(usbmgr) 0.4.8 Shuu Yamaguchi Special Helper: Philipp Thomas When USB devices connect to or disconnect from a USB hub, the usbmgr works as the following according to configuration. a) It loads and unloads files Linux kernel modules. b) It execute file to setup USB devices.
- 2023-06-07 08:50:03下载
- 积分：1
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Delphi USB 访问的单元的源代码。
Delphi USB 访问的单元的源代码。
-visit Delphi USB module source code.
- 2022-03-19 21:34:50下载
- 积分：1
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usb 驱动例子
usb 驱动例子-USB driver sample code.
- 2022-05-28 03:40:21下载
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USB接口做成动态连接库
USB接口做成动态连接库-USB interface, Dynamic Link Library
- 2022-05-14 22:38:36下载
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