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- 2023-01-09 23:55:04下载
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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编程器原理手臂
usb programmer schematic for arm
- 2022-04-28 17:02:30下载
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ez_usb通信DLL源码,对柏驱动公众版的使用…
EZ_USB 通信DLL源码,使用EZUSB公版驱动。尹邦坤设计,希望对需要的同仁又帮助。-EZ_USB communications DLL source, the use of the public version of Cypress Drive. Bang-Kun design with the hope of my colleagues also need help.
- 2022-02-03 21:07:17下载
- 积分:1
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使用CY68013USB芯片开发的几个小程序,包含了断点和批量传输,通过实际硬件测试。...
使用CY68013USB芯片开发的几个小程序,包含了断点和批量传输,通过实际硬件测试。-some P using cy68013A
- 2022-02-01 11:03:26下载
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I used to write an ad for EZUSB (2131) series chip DLL. Examples are
我用DELPHI写的一个专为EZUSB(2131)系列芯片的DLL。有例子-I used to write an ad for EZUSB (2131) series chip DLL. Examples are
- 2023-06-17 19:15:04下载
- 积分:1
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USBHOST源
USBhost source
- 2022-03-25 16:16:53下载
- 积分:1
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用HID类型开发USB设备,有兴趣的朋友可以改为VC,BCB代码。
用HID类型开发USB设备,有兴趣的朋友可以改为VC,BCB代码。-Use HID design USB device
- 2022-08-20 16:12:23下载
- 积分:1
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USB通信协议和U盘固件程序实现与调试
USB通信协议和U盘固件程序实现与调试-U disk USB communication protocols and procedures for implementation and debugging firmware
- 2023-04-23 02:25:03下载
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u disk copy source code, available on the market currently supports all the elem...
u盘复制源代码,目前支持市面上流行的所有元素,希望对大家有帮助-u disk copy source code, available on the market currently supports all the elements of pop, in the hope that everyone has to help
- 2023-08-11 15:25:04下载
- 积分:1