边界扫描在数模混合电路板级测试中的设计与应用

针对飞控系统某数模混合电路板测试需求,在不利用外部信号源、信号采集设备的条件下,利用边界扫描技术进行测试系统设计。介绍了PCI-410边界扫描核心套件和ScanWorks测试软件,对边界扫描测试方法进行研究,详细说明了测试系统方案设计、测试流程开发步骤以及测试程序执行方式,并通过实际测试,验证了设计的可行性,为数字电路板和简单的数模混合电路板的测试提供了实用的测试方法和手段,具有很好的应用价值。

Design and Application of Boundary-scan in Board-level Test of Digital-analog Hybrid Circuit

For the testing requirements of a digital-analog hybrid circuit board of the flight control system, used boundary-scan technology to design the test system without using external signal source and signal acquisition equipment. Introduced the PCI-410 boundary scan core suite and ScanWorks test software, studied the boundary scan test method, described the test system scheme design, test flow development steps and test program execution method in detail, and verified the feasibility of the design through practical testing, which provided practical test methods and means for the test of digital circuit boards and simple digital-analog hybrid circuit boards, and had good application value.