基于虚拟仪器测试环境的自动测试程序设计

Design of Auto Test Program Based on Virtual Instrument Test Environment

摘要:

现代军事装备大量采用了超大规模集成电路,传统功能测试方法难以为继,如何解决超大规模集成电路的测试问题,对现代军事装备的维修保障具有重要意义;针对此类问题,基于虚拟仪器测试环境,以边界扫描测试为主,以少量功能测试为辅,设计开发了某型电路板的测试程序,解决了总线竞争、Flash测试和数/模器件测试等问题,通过多次模拟试验,定位了故障节点,证明了该测试程序故障覆盖率高、测试速度快以及诊断精度高,实现了被测板超大规模集成电路的测试,为同类板件测试程序的开发提供了参考,具有一定的军事和经济效益。

Abstract:

Modern military equipment adopt lots of super large scale integrate circuit. Conventional function test is hard to test. It is significance for equipment maintenance. A test programme is designed for a circuit based on Virtual Instrument Test Environment. This test programme mainly contains boundary scan test and functional test. The bus conflict, FLASH test and digital/analog device test problem are solved. The test programme is reliable , fast and precise by lots of simulation. It is a good reference for designing the similar circuit. There is some military and economic benefits.