Universal Serial Bus (USB) is a communications architecture that gives a personal computer (PC) the ability to interconnect a variety of devices using a simple four- wire cable. The USB is actually a two-wire serial communication link that runs at either 1.5 or 12 megabits per second (mbs). USB protocols can configure devices at startup or when they are plugged in at run time. These devices are broken into various device classes. Each device class defines the common behavior and protocols for devices that serve similar functions. Some examples of USB device classes are shown in the following table
标签： communications architecture Universal computer
上传时间： 2015-12-08
上传用户：stvnash
本文专门讲解编写成功网络应用程序时所需的基本知识和A P I调用。
上传时间： 2014-01-20
上传用户：rishian
B/S版ERP安装方法 1、安装IIS5.0、Microsoft .NET Framework 1.1及SQL Server2000 2、将目录Copy_of_ERP和webctrl_client复制到C:/Inetpub/wwwroot下，并将Copy_of_ERP目录设置成IIS虚拟目录 3、在SQL Server2000中新建一个Storage用户和LXTXERP数据库，然后将Data目录中的LXTXERP.BAK数据库备份文件还原 4、修改Copy_of_ERP目录下的Web.config文件的连接属性sa用户的密码： <add key="mydns" value="data source=(local) initial catalog=LXTXERP persist security info=False user id=sa pwd=123 workstation id=jl packet size=4096" /> 5、在Windows管理工具中打开Internet 服务管理器，运行Copy_of_ERP中的Login.aspx打开ERP登录页面，默认用户：admin 密码：123 6、OK
标签： webctrl_clie Copy_of_ERP Framework Microsoft
上传时间： 2015-12-09
上传用户：zhuimenghuadie
for wince samsung 2k/b nandflash driver
标签： nandflash samsung driver wince
上传时间： 2014-01-07
上传用户：gaojiao1999
CCS的运行环境下的DSP2812种b部分程序代码，刚刚学习，希望大家有所帮助
上传时间： 2014-01-21
上传用户：zukfu
this C++ programming language,i wish this program will help u a lot,thank you!
标签： this programming language program
上传时间： 2014-01-22
上传用户：chenbhdt
ITU-T G.729语音压缩算法。 description: Fixed-point description of commendation G.729 with ANNEX B Coding of Speech at 8 kbit/s using Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP) with Voice Activity Decision(VAD), Discontinuous Transmission(DTX), and Comfort Noise Generation(CNG).
标签： description commendation Fixed-point 729
上传时间： 2014-11-23
上传用户：thesk123
电子商务网站使用MVC模式B/S结构功能不是很全适合初学者看
上传时间： 2015-12-22
上传用户：6546544
This is a collection of m-files I created to complete a research project into the DC components of various encoding techniques. Eight of the files create random bit sequences that conform to their coding requirements. The others were files I found useful in the scope of the project and supplement the generating m-files.
标签： collection components complete research
上传时间： 2015-12-24
上传用户：lnnn30
This a small hack I wrote to bypass the "No previous installation!" error of Microchip s C18 Upgrade. Simply run C18Fake and select your C18 installation directory (create if necessary) and click Save button. A "fake" file will now be created into that directory, and this will fool the Upgrade into thinking you already have a former legit installation. After that you run the C18 Upgrade setup and select the same directory you created/selected before. Your installation will now begin installing the full C18 package.
标签： installation Microchip previous Upgrade
上传时间： 2014-01-21
上传用户：zhuyibin
