基于PXI图像采集卡的WDM驱动程序设计

Development of WDM Driver for High-Speed image Acquisition Card

以基于CPCI的高速图像数据采集卡为例,介绍了PXI总线在高速数字通信中的一种应用及在Windows2000下的Com-pact PCI设备WDM驱动程序运行机理及编程要点;针对微软提供的驱动程序开发工具包DDK给出了基于一定实时要求的程序实例;重点介绍了驱动程序中的资源分配、中断响应、DMA聚拢/分散传输及Win32应用程序与驱动程序通信的关键问题;实验表明该驱动程序实现了预期的要求。

Taking the design of Compact PCI High-Speed image acquisition card for example,an application in current High-Speed data communication of PXI,the principle and programming key points for WDM driver design of Compact PCI device based on Windows2000.It demonstrates an instance with a developing and debugging tool DDK based on the real-time requirements to certain extent, and discuss specially some key problems such as resources allocation,interrupt,scatter/gather DMA,the communication between Win32 applicatio...