作者：杨晶菁, 顾亚平, 陈光?

作者单位：电子科技大学自动化工程学院CAT实验室, 四川 成都 610054

关键词：VISA; 事件机制; 回调; 队列

摘要：

虚拟仪器是一种新的仪器模式,是仪器领域的一场革命。VISA是VXI即插即用系统联盟定义的标准化的I/O接口软件,是实现虚拟仪器系统开放性和互换性的关键,而事件机制是VISA机制体系中的重要部分,包括事件捕获、通知机制和事件处理机制。本文在VISA开发工作的基础上,从事件机制的理解和事件函数的实现两个方面对VISA的开发技术进行了讨论。本文不仅较为全面的给出了对VISA的理解,而且较为全面地展示了设计开发VISA事件机制的思想和方法。

Design and realization of VISA events mechanism

YANG Jing-jing, GU Ya-ping, CHEN Guang-ju

School of Automation Engineering, University of Electronic Science and Technology, Chengdu 610054, China

Abstract: Virtual instrument is a new mode of the instrument and causes a revolution in the filed of the instruments.VISA is a standard I O interface software developed by VXI plug & play systems alliance and it is the key to realize an open and interchangeable virtual instrument system.Events mechanism is an important part of VISA mechanism system.It composes of events capture、notice mechanism and events processing mechanism.Based on the development of VISA.This article discussed VISA in two aspects:the ways to understand VISA events mechanism and the realization of it.The article not only discussed the ways to understand VISA,but also indicated the method of developing VISA events mechanism.

Keywords: VISA; Events mechanism; Callback; Queuing

2006, 32(2): 114-116  收稿日期: 2005-6-10;收到修改稿日期: 2005-7-28

基金项目: 

作者简介: 

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