摘要
边界扫描技术是复杂电路板测试和维修的有效手段,但是由于被测试电路板结构的限制,使该技术的应用受到一定程度的制约。如果通过设计适配器,将边缘连接器上的所有数据融合到边界扫描链路中,则能够提高电路板测试的完备性,有效完成故障检测和隔离。文章就上述过程进行了描述并提出了实现方法。
Boundary scanning is an effective measure for the test and maintenance of the complicated circuit board. But the technique is restricted in some degree because of the limitation of the tested circuit board structure.In this paper, a measure is put forward together with the course described. An adapter is designed and all the data on edge connector are mixed into the link circuit of boundary scanning, which can raise the completeness of circuit board testing and achieve fauh testing and segregation effectively.
出处
《中国修船》
2015年第6期15-18,共4页
China Shiprepair
关键词
边界扫描
测试性
故障检测
故障定位
boundary scanning
testability
fault testing
fault position
