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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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This is the Philips USB D12 driver testing procedures, this version has some of...
这是philips的usb d12的驱动测试程序，本版本部分资源已汉化，并解决英文版不能编译问题-This is the Philips USB D12 driver testing procedures, this version has some of the resources the Manchus, and the English version can solve the problem compiler
- 2022-05-07 19:09:45下载
- 积分：1
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usb通用驱动
驱动通用的usb设备
vc环境下
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
- 2022-03-26 19:27:54下载
- 积分：1
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usb_D12+8051的固件源码.
Keil_C51环境下编译
usb_D12+8051的固件源码.
Keil_C51环境下编译-usb_D12 8051 firmware source. Keil_C51 environment compiler
- 2022-03-18 11:57:47下载
- 积分：1
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基于omap5912平台的usb设备驱动源程序
基于omap5912平台的usb设备驱动源程序-Omap5912 platform based on the usb device driver source code
- 2022-12-16 09:40:03下载
- 积分：1
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CY7C63，64家庭USB芯片的开发工具。cyasm.exe和包括63000…
CY7C63,64系列USB芯片的开发工具.包括CYASM.exe和63000的头文件,对开发者很有用.-CY7C63, 64 family of USB chip development tools. CYASM.exe and including 63,000 in the first document, the developers useful.
- 2023-02-14 08:10:03下载
- 积分：1
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国内翻译的国外的《usb大全》一书。
对usb入门看看还是很好的，适合usb从入门到中级的水平。想要精通就不用看了...
国内翻译的国外的《usb大全》一书。
对usb入门看看还是很好的，适合usb从入门到中级的水平。想要精通就不用看了-Translation of foreign domestic
- 2022-03-19 00:06:32下载
- 积分：1
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PC机的USB源码，你可以下载到单片机
USB上位机源程序, 可以下载程序给单片机-PC USB source, you can download to the single-chip
- 2022-02-12 01:40:58下载
- 积分：1
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ezUSB fireware 的固件
ezUSB fireware 的固件-ezUSB fireware firmware
- 2022-02-02 19:34:19下载
- 积分：1
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themselves prepared a plaything
自己编写的一个小玩意-themselves prepared a plaything
- 2022-05-20 13:19:22下载
- 积分：1
