基于GPIB的数字电路自动测试系统设计分析

Design and analysis of digital circuit automatic test system based on GPIB

为了改善传统数字电路测试系统中的问题,提高测试系统自动化程度,实现基于GPIB的数字电路自动测试系统的设计。系统主要包括硬件部分及软件部分,硬件部分设计主要包括USB集线器、主控计算机、USB数字量I/O模块等,主控计算机利用USB接口实现数字量I/O模块测试仪器的控制,实现测试结果的处理及显示。测试系统软件以Lab平台为基础,使用图形化编程方式进行开发。软件包括数据库管理程序及应用程序构成,应用程序使用主模块结合功能插件方式。本文设计系统在雷达接收机数字电路自动测试中实现,具有稳定的性能。

In order to improve the problems of traditional digital circuit test system,improve the automation of test system,and realize the design of digital circuit automatic test system based on GPIB. The system mainly includes hardware and software. The hardware design mainly includes USB hub,main control computer,USB digital I/O module,etc. The main control computer uses USB interface to control the digital I/O module test instrument and realize the processing and display of test results. The software of the test system is based on the Lab platform and is developed by graphical programming. The software consists of database management program and application program. The application program uses main module and function plug- in mode. The design system is implemented in the automatic test of radar receiver digital circuit and has stable performance.