Enabling Remote Testing: Embedded Test Controller and Mixed-signal Test Architecture
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- 作者：Jari Hannu ; Teuvo Saikkonen ; Juha H盲kkinen ; Juha Karttunen and Markku Moilanen
- 关键词：Remote testing ; Embedded testing ; Test control ; Mixed ; signals
- 刊名：Journal of Electronic Testing
- 出版时间：December 2010
- 出版年：2010
- 期刊代码：18_09238174
- 类别：soc
- 卷：26
- 期：6
- 页码：641-658
- 数据来源：sp
摘要
Remote testing requires embedded test infrastructure, consisting of communication, test control and test access. This article presents an embedded test solution for a low-frequency audio board. Supporting analog testing, the solution consists of a measurement and calculation method for passive component characterization, analog test bus solution and an embedded test controller for controlling embedded tests and providing test stimuli. Moreover, the solution, which supports the presented test plan, was compared to a test plan supporting traditional testing. It was found that the embedded test solution provided a 29%test coverage of the audio board components and substituted flying probe testing included in the traditional test plan. Besides such benefits as improved fault diagnostics and lower manufacturing costs, the paper also discusses the drawbacks of the presented solution, including reduced measurement accuracy. This paper also presents a correction to a previously presented passive component measurement and calculation method.