基于银河麒麟操作系统的PXI仪器控制软件设计

Design of PXI Instrument Control Software Based on Kirin Operating System

摘要:

随着电子测量与自动化技术的不断进步，PXI（PCI extensions for Instrumentation）总线技术以其高性能、模块化和可扩展性在测控领域占据了重要地位。当前PXI仪器控制软件主要基于Windows操作系统开发，通过调用标准VISA I/O库实现仪器驱动控制，这些软件和I/O库通常不能在国产操作系统上运行，在一定程度上限制了PXI系统在国产化进程中的发展。本文设计了一套可在银河麒麟操作系统上运行的PXI仪器控制软件，包括界面程序、驱动程序和底层I/O库等，可通过界面程序完成PXI仪器的参数设置、测量控制和返回测试结果等。核心技术在于通过内存映射向PCI/PCIe总线设备发送和接收数据，实现仪器驱动，解决现有VISA I/O库不支持国产银河麒麟操作系统，导致PXI/PXIe仪器不能使用的问题。

Abstract:

With the continuous advancement of electronic measurement and automation technology, PXI (PCI extensions for Instrumentation) bus technology occupies an important position in the field of measurement and control due to its high performance, modularity, and scalability. The current PXI instrument control software is mainly developed based on the Windows operating system, and instrument driver control is achieved by calling the standard VISA I/O library. These software and I/O libraries usually cannot run on domestic operating systems, which to some extent limits the development of PXI systems in the localization process. This article designs a PXI instrument control software that can run on the Kirin operating system, including interface programs, driver programs, and underlying I/O libraries. The interface program can be used to complete PXI instrument parameter settings, measurement control, and return test results. The core technology lies in sending and receiving data to PCI/PCIe bus devices through memory mapping, implementing instrument drivers, and solving the problem of existing VISA I/O libraries not supporting the domestic Kirin operating system, which leads to the inability to use PXI/PXIe instruments.