Debugging mixed-signal circuits via the IEEE1149.4 Std. - analysis of limitations and requirements

• Type: Poster in an International Conference
• Date: 2006

Authors

Manuel C. Felgueiras (Author) Other; Gustavo R. Alves (Author) Other; José Martins Ferreira (Author) FEUP

Conference International

IEEE International Mixed-Signals Testing Workshop (IMSTW'06)

Edimburgo, Escócia, 22 a 23 de Junho de 2006

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Abstract (EN): Debugging mixed-signal circuits is traditionally seen as a complex task due to the presence of an analog part and the necessary interaction with a digital part. The use of debug tools that require physical access suffers from the same restrictions that led to the use of debug tools based on electronic access to digital circuits. While the IEEE1149.4 test infrastructure enables the structural and parametric test of mixed-signal boards, through electronic access, its use for debug purposes is still far from reaching a wide acceptance, namely due to the lack of a debug methodology. This work analyses several access mechanisms for Controllability, Observability and Verification operations via the IEEE1149.4 infrastructure, with an emphasis on the analysis of its limitations and requirements.

Language: English

Type (Professor's evaluation): Scientific