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EnglishTraditionally, the usage of caches and deterministic execution of on-line self-test procedures have been considered two mutually exclusive concepts. At the same time, software executed in a multi-core context suffers of a limited timing predictability due to the higher system bus contention. When dealing with selftest procedures, this higher contention might lead to a fluctuating fault coverage or even the failure of some test programs. This paper presents a cache-based strategy for achieving both deterministic behaviour and stable fault coverage from the execution of self-test procedures in multi-core systems. The proposed strategy is applied to two representative modules negatively affected by a multi-core execution: synchronous imprecise interrupts logic and pipeline hazard detection unit. The experiments illustrate that it is possible to achieve a stable execution while also improving the state-of-the-art approaches for the on-line testing of embedded microprocessors. The effectiveness of the methodology was assessed on all the three cores of a multi-core industrial System- on-Chip intended for automotive ASIL D applications.
Deterministic Cache-based Execution of On-line Self-Test Routines in Multi-core Automotive System-on-Chips / Floridia, Andrea; Carmona, Tzamn Melendez; Piumatti, Davide; Ruospo, Annachiara; Sanchez, Ernesto; Luca, Sergio De; Martorana, Rosario; Pernice, Mose Alessandro. - ELETTRONICO. - (2020), pp. 1235-1240. ((Intervento presentato al convegno 2020 Design, Automation & Test in Europe Conference & Exhibition (DATE) tenutosi a Grenoble, France nel 9-13 March, 2020.
| Titolo: | Deterministic Cache-based Execution of On-line Self-Test Routines in Multi-core Automotive System-on-Chips |
| Autori: | |
| Data di pubblicazione: | 2020 |
| Abstract: | Traditionally, the usage of caches and deterministic execution of on-line self-test procedures ha...ve been considered two mutually exclusive concepts. At the same time, software executed in a multi-core context suffers of a limited timing predictability due to the higher system bus contention. When dealing with selftest procedures, this higher contention might lead to a fluctuating fault coverage or even the failure of some test programs. This paper presents a cache-based strategy for achieving both deterministic behaviour and stable fault coverage from the execution of self-test procedures in multi-core systems. The proposed strategy is applied to two representative modules negatively affected by a multi-core execution: synchronous imprecise interrupts logic and pipeline hazard detection unit. The experiments illustrate that it is possible to achieve a stable execution while also improving the state-of-the-art approaches for the on-line testing of embedded microprocessors. The effectiveness of the methodology was assessed on all the three cores of a multi-core industrial System- on-Chip intended for automotive ASIL D applications. |
| ISBN: | 978-3-9819263-4-7 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| DATE_CACHES.pdf | Post Print version Accepted DATE2020 without IEEE copyright | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
| post_print_IEEE.pdf | Post Print version Accepted DATE 2020 with IEEE copyright | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2837295
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