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1. 发明申请

WO2009001122A1 EMBEDDED TEST SYSTEM AND METHOD 审中-公开
标题翻译：嵌入式测试系统和方法
公开(公告)号：WO2009001122A1
公开(公告)日：2008-12-31
申请号：PCT/GB2008/050469
申请日：2008-06-20
申请人： ASTRIUM LIMITED , EMAM, Omar , ALI, Mohammed Yaseen
发明人： EMAM, Omar , ALI, Mohammed Yaseen
IPC分类号： G01R31/3185
CPC分类号： G01R31/318536 , G01R31/318558
摘要： An embedded test system is provided where asynchronous communications links are used to pass the boundary scan information by the use of a network router to a boundary scan adapter(54, 60) associated with each component to be tested. This approach enables the system components themselves to facilitate the implementation of a chain-free boundary scan architecture as opposed to a traditional boundary scan bridge approach thus reducing component count and simplifying system design. Thus boundary scan tests can still be performed even after one or more components have been disabled, configured in functional mode or have failed. The same commanding sequence can be applied irrespective of the network topology or the component count since the routing of the boundary scan information is the responsibility of the network routing functionality. This testing method is independent of the underlying functionality of the target hardware or its individual components. The invention also provides for a hybrid solution to adapt boundary scan compatible COTS component so that they can be used within a chainless boundary scan architecture.
摘要翻译：提供嵌入式测试系统，其中使用异步通信链路通过使用网络路由器将边界扫描信息传递到与要测试的每个组件相关联的边界扫描适配器（54,60）。这种方法使得系统组件本身能够促进无链边界扫描架构的实现，而不是传统的边界扫描桥接方法，从而减少组件数量并简化系统设计。因此，即使禁用一个或多个组件，在功能模式下配置或失败，仍然可以执行边界扫描测试。无论网络拓扑或组件数量如何，都可以应用相同的命令顺序，因为边界扫描信息的路由是网络路由功能的责任。该测试方法独立于目标硬件或其各个组件的基本功能。本发明还提供了一种用于适应边界扫描兼容COTS组件的混合解决方案，使得它们可以在无链接边界扫描架构中使用。

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