PXI总线测试仪器的驱动程序设计

Design of Device Drivers for Testing Instruments Based on PXI Bus

PXI是一种全新的开放式、模块化的仪器总线规范。PXI设备能被WindowsNT操作系统自动识别。且所有PXI模块都具有共同的软件框架，可以很方便地扩充PXI设备。设备驱动程序给上层应用程序提供了与硬件通信的功能接口。本文详细介绍了PXI总线仪器驱动程序的设计。

PCI eXtensions for Instrumentation are opening and modularizing specifications. PXI devices can be automatically identified by WindowsNT operating system. All PXI modules share a common software frame. And PXI devices can be extended easily. Device drivers provide one functional interface for applications communicating with the hardware. The design of device drivers for PXI modules are discussed in detail.