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通信设备的USB类的定义
USB Class definitions for communication devices
- 2022-03-05 04:11:13下载
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USB主机
usb host
- 2022-07-24 03:37:57下载
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ActiveX控件的示例
ActiveX示例
- 2022-05-23 19:10:01下载
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这个USB 3规范的PDF。
This USB 3.0 Specification pdf.
-This is USB 3.0 Specification pdf.
- 2022-09-02 03:05:04下载
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VC++的USB经典编程源码,本人调试通过,并已经应用于专业工具。...
VC++的USB经典编程源码,本人调试通过,并已经应用于专业工具。-VC++ The USB classical programming source code, I debug through, and has been applied to professional tools.
- 2022-02-21 01:44:59下载
- 积分:1
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rs232到usb的转换器host
rs232到usb的转换器host-RS232-RS232 to USB converter host-RS232
- 2022-02-05 00:31:08下载
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网上收集的利用nios软核,使用isp1362芯片开发的u盘程序,有助于usb开发的理解和ufi协议的理解。已经验证,完全可用xp自带驱动。...
网上收集的利用nios软核,使用isp1362芯片开发的u盘程序,有助于usb开发的理解和ufi协议的理解。已经验证,完全可用xp自带驱动。-Collected online using Nios soft-core, use isp1362 chip development process u disk, usb help develop the understanding and agreement ufi understanding. Has been verified, fully available to bring their own driver xp.
- 2023-06-02 11:10:03下载
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This document describes the minimun capabilities and characteristic that a video...
This document describes the minimun capabilities and characteristic that a video streaming devicemust support to comply eith USB video class specification.
- 2022-03-10 13:34:48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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temperature display, use CYPRESS IC, a driver, source, a VB program.
温度显示器,用CYPRESS IC,有驱动,有源程序,有VB程序。-temperature display, use CYPRESS IC, a driver, source, a VB program.
- 2022-01-28 04:24:11下载
- 积分:1