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usb芯片访问外设――usb和1553b总线的接口访问时序。
usb芯片访问外设――usb和1553b总线的接口访问时序。-USB chip interfaces peripheral through 1553b bus, interface timing.
- 2022-02-15 03:35:20下载
- 积分:1
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usb good use of schematics
usb很好用的原理图-usb good use of schematics
- 2022-07-12 05:24:23下载
- 积分:1
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针对USB 设备或主机开发过程中的调试过程,如果能对协议的过程和细节内容了解地非常清楚,则对于调试过程非常有帮助,就意味着可以预测主机(或设备)下一步应该做什么...
针对USB 设备或主机开发过程中的调试过程,如果能对协议的过程和细节内容了解地非常清楚,则对于调试过程非常有帮助,就意味着可以预测主机(或设备)下一步应该做什么,此文档目的在于描述控制传输和批量传输的协议细节。-USB device or host
- 2022-10-12 22:40:03下载
- 积分:1
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USB的 这次 我这只有两个可以上载 谁能告诉我怎么办
USB的 这次 我这只有两个可以上载 谁能告诉我怎么办-USB of the only two I can upload Can anyone tell me how to do
- 2022-08-11 01:28:20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
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USB_Audio c8051Fxxx
USB_Audio c8051F-USB_Audio c8051Fxxx
- 2022-03-22 23:13:02下载
- 积分:1
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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
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usb温度控制器Target
usb温度控制器Target-usb Target Temperature Controller
- 2023-06-23 18:05:03下载
- 积分:1
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usb with the letter, plus wireless communications, lpc
usb同信,加无线通信,lpc的arm,可以实现一对多通信-usb with the letter, plus wireless communications, lpc
- 2022-07-15 01:33:07下载
- 积分:1
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U disk drives and related documents
U盘与硬盘相关文档-U disk drives and related documents
- 2022-08-09 21:55:38下载
- 积分:1