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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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本程序演示了如何利用编写高层应用程序与USB接口通信。读者有必要了解主机是如何识别USB设备以及USB工作的基本原理。...
本程序演示了如何利用编写高层应用程序与USB接口通信。读者有必要了解主机是如何识别USB设备以及USB工作的基本原理。-this program demonstrated how to use the preparation of high-level applications and USB communication. Readers need to understand is how to identify host USB and USB devices to the basic tenets.
- 2022-11-19 06:50:03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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usb hid devices on the site from abroad
usb hid 设备
来自国外网站上的-usb hid devices on the site from abroad
- 2022-03-17 09:01:10下载
- 积分：1
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USB驱动传输数据握手的例程。
USB驱动传输数据握手的例程。还有类似的很多程序，需要的话请留言免费赠送。-USB drive to transfer data handshake routines.
- 2022-02-10 03:28:38下载
- 积分：1
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USB2.0 specification English
USB2.0的技术规范 英文-USB2.0 specification English
- 2022-03-14 12:51:01下载
- 积分：1
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ZLG reader to read and write the source code (delphi7)
周立功读卡器读写源代码（delphi7）-ZLG reader to read and write the source code (delphi7)
- 2022-03-10 05:00:30下载
- 积分：1
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完整的USB中文协议。这本书标准化工业
完整的USB中文协议.本书规范了USB的工业标准。该规范介绍了USB的总线特点、协议内容、事务种类、总线管理、接口编程的设计，以及建立系统、制造外围设备所需的标准。
设计USB的目标就是使不同厂家所生产的设备可以在一个开放的体系下广泛的使用。该规范改进了便携商务或家用电脑的现有体系结构，进而为系统生产商和外设开发商提供了足够的空间来创造多功能的产品和开发广阔的市场，并不必使用陈旧的接口，害怕失去兼容性。-Complete USB Chinese agreement. This book standardized industry-standard USB. Introduction of the normative characteristics of the USB bus, agreement, transaction type, bus management, interface programming, design, and the establishment of systems, peripheral equipment required for manufacturing standards. USB design goal is to be produced by different manufacturers of equipment can be in an open system widely used. Norms to improve the portability of the business or home computer
- 2022-07-26 01:30:40下载
- 积分：1
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USB U 盘 开发的源代码， HOST USB2.0
USB U 盘 开发的源代码， HOST USB2.0-USB U-developed source code, HOST USB2.0
- 2022-03-06 21:37:51下载
- 积分：1
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用于AVR的USB，工程，自己看看，怎么这么多废话，不过文件有点长...
用于AVR的USB，工程，自己看看，怎么这么多废话，不过文件有点长-Interface USB with AVR microcontroller.
- 2022-07-18 22:39:09下载
- 积分：1
