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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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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
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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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USB2.0开发系统概要；USB开发步骤之标准篇；USB开发步骤之软件篇；USB开发步骤之硬件篇...
USB2.0开发系统概要；USB开发步骤之标准篇；USB开发步骤之软件篇；USB开发步骤之硬件篇-USB2.0 outline development system USB development steps of the standard articles USB steps of software development articles USB hardware development steps of the articles
- 2023-08-01 04:45:02下载
- 积分：1
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CH375 for USB master and slave chips, built
CH375 为USB主从芯片，内置协议，该文件中包含所有涉及到的CH375的用户资料-CH375 for USB master and slave chips, built-in protocol, the file contains all of the user information CH375
- 2023-07-11 05:50:04下载
- 积分：1
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This is the AD collection procedures, and only on the specific acquisition card...
这个是AD采集的程序，只有对特定的采集卡才有用，而且需要采集卡供应商提供采集卡端口USB2.0驱动程序才能用。-This is the AD collection procedures, and only on the specific acquisition card can use, but also acquisition card providers USB2.0 port capture card driver can be used.
- 2022-07-06 12:07:49下载
- 积分：1
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usb通信检测软件，很实用，重要
usb通信检测软件，很实用，重要-usb detection communications software, very useful, important
- 2022-11-28 05:30:03下载
- 积分：1
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Works Introduction: the work and is equipped with a number from the body into a...
作品简介:该作品与配备的多个从机构成一个计分体系,可以通过总机器读取从机器的分值.每个计分员在手上的计分从机器输入分数,则无需人手统计,就能在总机器的液晶屏上看到各位记分员给的分数.
支持多个从机同时通过USB线连接到总机.由于USB连接市场上能方便的购买,所以使用USB连接线构建计分体系.
作品作用:在各种文艺活动中的计分环节上,能方便的为计分员统计分数.
-Works Introduction: the work and is equipped with a number from the body into a scoring system, the machine can read the total scores from the machine. Each scoring in the hands of the points from the machine enter the scores, you do not need manpower statistics can be in the overall machine s LCD screen to see all the scores to the scorekeeper. support multiple machines at the same time from the USB line to connect to the switchboard. USB connection as a result of the market can make it easier to buy, so use the USB cable to build a scoring system. work roles: in a variety of cultural activities in the scoring areas, can make it easier for Members of statistical scores points.
- 2022-02-28 16:34:41下载
- 积分：1
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usb user mode lib
usb user mode lib
- 2022-01-25 17:11:11下载
- 积分：1
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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
