节点文献
1394-VXI零槽控制器模件VISA库研究
Research on the VISA Library of 1394-VXI Slot 0 Controller
【作者】 何虎；
【导师】 汪国有；
【作者基本信息】 华中科技大学 ， 模式识别与智能系统， 2007， 硕士
【摘要】 虚拟仪器作为一种新型仪器在综合自动化测试领域得到了广泛应用。VISA是VXI即插即用系统联盟为了实现虚拟仪器系统可扩展性、标准性、模块性、以及互操作性而定义的标准化I/O接口。本文立足于国产化1394-VXI零槽控制器,遵照VPP4.3规范,详细介绍了基于1394接口的零槽控制器模件VISA软件系统的设计。本文首先介绍虚拟仪器测试系统的逻辑模型,明确了设计中的主要任务,接着根据VPP4.3和NI-VISA规范介绍了VISA系统资源及标准,然后详细阐述了VISA软件系统中的资源管理器、VISA动态链接库、底层I/O驱动程序的设计方案,最后介绍了VISA库的测试和应用。本文立足于已有的嵌入式VISA库,给出了基于1394的VISA结构模型,研制了具有我国自主知识产权的1394-VXI零槽控制器VISA软件系统,为我国自主开发的VXI总线自动化测试系统提供了软件平台。
【Abstract】 Virtual Instruments have been widely used as a new kind of instruments in the field of auto measurement.VISA is a standard I/O interface of VXI plug&play systems alliance, with extension, standardization, modularization and inter-operation. This thesis discusses the designing of the VISA software system based on the IEEE1394 interface according to the VPP4.3 regulation.This thesis has four parts.The first part introduces the logic model of the VXI measurement system and presents the main task of the design. The second part describes the resource and standard of the VISA based on the VPP4.3 and the NI-VISA.Then the third part discusses the design of the resource manager, VISA dynamic link library and the bottom I/O device driver. Finally, the last part describes the testing and application of the VISA library.Referring to the existing Embeded VISA library, the thesis defines the VISA architecture model with the 1394 interface and designs the VISA software system, which supplies a software platform for the VXI auto measurement system of our nation.