基于WDF的PXI总线多功能数据采集卡驱动开发

摘要

在自动测试系统中,计算机与硬件板卡之间的高速数据传输是高性能测试系统研发的关键点.为满足海量数据的高速传输,PXI总线是很好的选择.随着对测试系统集成度要求的不断提高,更多的硬件设备需要参与到测试过程之中,这就使得设备的驱动开发与维护变得更加重要.在基于WDF驱动框架下,设计开发了PXI总线多功能数据采集卡的驱动程序.驱动程序的主要功能包括驱动对象与设备对象的创建、I/O请求处理、中断处理和DMA处理,很好的实现了计算机对板卡的功能控制.%In the automatic test system,high speed data transfer between the computer and the hardware board is the key point of high-performance test system development.To meet the high-speed transmission of large amounts of data,PXI bus is a good choice.With the test system integration requirements continue to increase,more hardware devices need to participate in the testing process,which makes the development of device drivers,maintenance becomes more important.WDF drivers based framework,design and development of the PXI bus Multifunction Data Acquisition card driver.The main features include driver and equipment to create a drive object,I/O request processing,interrupt handling and DMA process,to achieve a good function of the control computer on card.