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
VC.NET编程讲座,word文件，比较简明，可以作为初学或提高的资料
上传时间： 2015-12-09
上传用户：kr770906
IPCAM Design document based on TI DaVinci
标签： document DaVinci Design IPCAM
上传时间： 2013-12-26
上传用户：songrui
Keil工具Hello word源码，开发平台S3C2440
上传时间： 2015-12-10
上传用户：dsgkjgkjg
In a preemptive priority based RTOS, priority inversion problem is among the major sources of deadline violations. Priority inheritance protocol is one of the approaches to reduce priority inversion. Unfortunately, RTOS like uC/OS can’t support priority inheritance protocol since it does not allow kernel to have multiple tasks at the same priority. Although it has different ways to avoid priority inversion such as priority ceiling protocol, developers still have some difficulties in programming real time applications with it. In this paper, we redesign the uC/OS kernel to provide the ability to support round robin scheduling and implement priority inheritance semaphore on the modified kernel. As result, we port new kernel with priority inheritance semaphore to evaluation board, and evaluate the execution time of each of the kernel service as well as verify the operations of our implementation.
标签： priority preemptive inversion problem
上传时间： 2015-12-14
上传用户：气温达上千万的
word 2000的VBA开发教程,word2000_vba源代码
上传时间： 2015-12-15
上传用户：极客
基于DDS的信号发生器的设计与开发 The Design and Development of Function Generator Based on DDS
标签： Development DDS Generator Function
上传时间： 2014-01-03
上传用户：stewart·
一般使用PC Based Controller 都是当作现场设备的一种，也就是要接受 主系统的命令，做一些操作控制。以Modbus 来看属于Slave 的角色，随 时等待接收Modbus Master 的Query Message，然后依据内容做控制，最后 将控制结果以Response Message 回传。本章将以ICP 7524 及ICP 7188E5 等 两种设备分别设计Modbus RTU、ASCII 及Modbus/TCP 的Slave 应用程序， 读者可以将此两种程序的架构再延伸设计至各种实际应用程序。
标签： Controller Based 现场设备
上传时间： 2015-12-16
上传用户：nanxia
A Comparison of Load-based and Queue-based Active Queue Management Algorithms
标签： Queue-based Comparison Algorithms Load-based
上传时间： 2015-12-16
上传用户：ruixue198909
word版论文，详细论述了信号处理中采样定理的由来、发展以及历史上人们对它称谓的误解，还附录了所有的pdf版参考文献，慢慢读来，一定会对你深刻理解采样定理有帮助！
上传时间： 2015-12-18
上传用户：qunquan
