基于SCANWORKS的模数混合电路板测试程序集设计  

Development of Test Program System(TPS)for Mixed-signal Circuits Based on SCANWORKS

作　　者：柳颖 蔡永招 Liu Ying;Cai Yongzhao(91114 CPLA Troops,Shanghai 200434,China)

机构地区：[1]中国人民解放军91114部队,上海200434

出　　处：《计算机测量与控制》2021年第3期10-13,共4页Computer Measurement &Control

摘　　要：针对某型指控系统中的模数转换电路板上含有复杂可编程逻辑器件CPLD以及多路模数转换单元的测试与诊断问题;运用边界扫描测试技术及PXI仪器总线技术研制了该指控系统的板件测试设备,介绍了边界扫描测试软件SCANWORKS,详细说明了利用SCANWORKS软件开发该指控系统模数转换电路板的测试程序集(TPS)的测试方案设计、测试过程和测试结果分析等内容;使用设计的测试程序集对该种模数转换板进行测试和诊断,故障覆盖率达到97.1%;该测试与诊断方法的研究同样适用于其他复杂板件的维修测试与诊断,具有非常重要的实用价值。For the testing and diagnose of mixed-signal circuits equipped in command and control system equipment,which has CPLD and multiple A/D conversion circuits;develop the testing equipment by applying boundary-scan and PXI bus technology.SCANWORKS is introduced as an advanced boundary-scan test software.The test solution design and the flow of development of TPS for mixed-signal circuits based on SCANWORKS are explained in detail.The fault coverage achieves 97.1%by using this TPS.The test and diagnose methods provide an example for the test and diagnose of other complex circuit board,and have practical application value.

关 键 词：边界扫描 SCANWORKS BSDL 故障覆盖率 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]