The development of a data acquisition card based on USB bus is introduced in this article.It first describes the configuration and principle of this card in the part of hardware design,and then the application program and device driver in the part of software design.Data acquisition program in firmware is also discussed.Finally,this data acquisition card is tested and evaluated in a program developed by Lab Windows CVI,which shows that this car is stable and reliable
标签： development acquisition introduced article
上传时间： 2015-12-07
上传用户：lijianyu172
使用VB仿QQ界面开发的ICQ程序,采用C/S结架,实现简单文字聊天.
上传时间： 2013-12-10
上传用户：han_zh
eclipse开发的一个b/s车站查询系统.数据库用oracle
上传时间： 2014-12-22
上传用户：Amygdala
The programming port of all the FP PLC’s support OPEN MEWTOCOL-COM. This is very useful when you want to monitor PLC values/bits or to set PLC values or bits via your COMPUTER. You can use any language such as Basic, C, Pascal, Assembler or even if other suppliers of PLCs can send ASCII strings, they can talk to our PLCs to exchange data.
标签： MEWTOCOL-COM programming support useful
上传时间： 2015-12-08
上传用户：youmo81
ucOS_ii,source from disk,Maybe it s useful for you if you would studt ucosii.
上传时间： 2015-12-08
上传用户：阿四AIR
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
seed 的dsp程序s eed 的dsp程序seed 的dsp程序
上传时间： 2015-12-09
上传用户：xsnjzljj
seed 的dsp程序s eed 的dsp程序s eed 的dsp程序
上传时间： 2013-12-21
上传用户：wkchong
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
ASN.1 (抽象语法符号) A Layman s Guide to a Subset of ASN.1, BER, and DER. 对理解报文传输有一定帮助
上传时间： 2015-12-10
上传用户：冇尾飞铊
