JTAG边界扫描技术在高速路由器硬件测试中的应用  

Application of JTAG Boundary Scan Technique in Hardware Test of High-speed Network Router

作　　者：管剑波[1] 崔向东[1] 瞿国平[1] 

机构地区：[1]国防科技大学计算机学院,长沙410073

出　　处：《计算机工程》2001年第8期36-37,52,共3页Computer Engineering

基　　金：国家863高科技项目

摘　　要：硬件系统的规模越来越大，复杂度越来越高，对其进行测试也越来越困难，ＪＴＡＧ边界扫描技术较好地解决了传统测试的不足。但是在高速路由器的体系结构中，应用ＪＴＡＧ边界扫描进行插件导通测试遇到了困难。介绍了ＪＴＡＧ边界扫描的概念及基本协议，针对高速路由器的硬件结构，提出了一种灵活利用ＪＴＡＧ边界扫描进行插件导通测试的方法，并详细介绍了该工作方法的工作原理及实现。As the scale and complexity of hardware systems increase quickly,it is now a more difficult task to test them.The JTAG boundary scan technique can well make up the shortcoming of traditional test techniques.But there are some difficulties in carrying on board-level connection test of the high-speed network router because of its architecture. This article first gives a brief introduction of JTAG boundary scan basic conception and protocol, and then according to the high-speed router hardware architecture, provides a method which can carry on the board-level connection test by using JTAG boundary scan flexibly,at last describes in detail the theory and implementation of this method.

关 键 词：JTAG 边界扫描 导通测试 路由器 硬件 标件导通 

分 类 号：TN915.05[电子电信—通信与信息系统]