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USB通讯若干问题探讨
USB通讯若干问题探讨-USB communication on a number of issues
- 2022-02-09 19:30:10下载
- 积分:1
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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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通过USB通信程序pusbd12
samsung 44b0X通过pusbd12的usb通讯程序-pusbd12 through the USB Communication Program
- 2023-08-12 06:35:03下载
- 积分:1
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用USB控制硬硬盘读写的汇编代码。
用USB控制硬硬盘读写的汇编代码。-control with USB hard drives read and write assembly code.
- 2022-04-27 10:18:34下载
- 积分:1
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PCusb,一个读取串口原程序,VC++6.0
PCusb,一个读取串口原程序,VC++6.0-PCusb, a serial port to read the original procedure, VC++ 6.0
- 2022-03-25 09:45:40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
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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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PIC单片机的USB嵌入式接口程序,用C语言编写
PIC单片机的USB嵌入式接口程序,用C语言编写-PIC MCU embedded USB interface program using C language
- 2022-03-14 11:35:47下载
- 积分:1
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USB转换芯片PL2303无结晶,电路简单,稳定性高
USB转换芯片,pl2303无需晶振,电路简单,稳定性高-USB conversion chip, pl2303 without crystal, a simple circuit, high stability
- 2022-10-17 10:20:03下载
- 积分:1
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本源代码是用vc编写的关于usb接口的编程
本源代码是用vc编写的关于usb接口的编程-source code is used vc prepared on usb interface programming
- 2022-01-23 11:16:22下载
- 积分:1