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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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ADC和SRAM存储采集点DMA。通过改变采样时间…
acquisition with ADC and storing in SRAM wuth DMA. change sampling time throught USB and transfer sampling throught usb protocol in terrupt.
- 2022-02-19 21:45:04下载
- 积分：1
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usb海量存储的驱动程序
usb海量存储的驱动程序-usb mass storage driver
- 2022-05-22 00:30:21下载
- 积分：1
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HomePNA的Usb网卡驱动，（Ndis_WDM(USB)）仅提供框架，设备配置部分删除，有注释。...
HomePNA的Usb网卡驱动，（Ndis_WDM(USB)）仅提供框架，设备配置部分删除，有注释。-HomePNA the Usb network adapter driver, (Ndis_WDM (USB)) only provide the framework, part of the deletion of equipment, there are notes.
- 2022-03-18 11:16:43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
本程序演示了如何利用编写高层应用程序与USB接口通信-this program demonstrated how to use the preparation of high-level applications and USB communications
- 2022-03-10 05:22:49下载
- 积分：1
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usb协议的深层剖析,对usb协议的详细解释
usb协议的深层剖析,对usb协议的详细解释-A deep anatomy and detail explanation for USB protocol.
- 2022-04-19 15:22:49下载
- 积分：1
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USB与USB互传文件的软件，能够实现PC机与另外一台PC机的文件传输...
USB与USB互传文件的软件，能够实现PC机与另外一台PC机的文件传输-USB and USB to each other document software, can be achieved with another PC-a PC-File Transfer
- 2023-01-15 17:55:03下载
- 积分：1
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mp3设计程序资料，采用c语言编写。
README file for
yampp
mp3设计程序资料，采用c语言编写。
README file for
yampp-3 source code 2001-05-27
This is the current state of the yampp-3 source code, 2001-05-27.
This code is intended to run on Rev. B of the yampp-3 PCB, but can
ofcourse be used on compatible systems as well.
It still uses the "old" song selection system as the yampp-2.
However, the disk handling routines has improved a lot and the
obviosly, the new VS1001 handling has been put in.
The codesize is almost at it s maximum at 1F40 bytes.
A .ROM file is included if you don t have the compiler set up.
For now, the documentation is in the code- mp3 programming cook book in C. README file for yampp-3 source code 2001-05-27 This is the current state of the yampp-3 source code, 2001-05-27. This code is intended to run on Rev. B of the yampp-3 PCB, but can ofcourse be used on compatible systems as well. It still uses the "old" song selection system as the yampp-2. However, the disk handling routines has impr
- 2022-06-26 07:41:12下载
- 积分：1
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usb与RS232之间的通信，包括主机程序，固件源程序。采用HID类！我现在需要USB键盘方面的源程序，如果你有请提供crzman@163.com...
usb与RS232之间的通信，包括主机程序，固件源程序。采用HID类！我现在需要USB键盘方面的源程序，如果你有请提供crzman@163.com-between USB and RS232 communications, including mainframe procedures, firmware source. Using HID category! I now need a USB keyboard aspects of the source, if you have please provide crzman@163.com
- 2022-04-28 08:30:28下载
- 积分：1
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USB开发工具，MS提供，可以读取所有USB设备的descriptor表。是USB开发者的好帮手。
USB开发工具，MS提供，可以读取所有USB设备的descriptor表。是USB开发者的好帮手。-USB development tools, MS to provide, you can read all the USB device descriptor table. USB developer is a good helper.
- 2022-03-03 09:09:36下载
- 积分：1
