RT Journal Article
T1 Online test of control flow errors: a new debug interface-based approach
A1 Du, Boyang
A1 Sonza Reorda, Matteo
A1 Sterpone, Luca
A1 Parra Avellaneda, Luis Isaías
A1 Portela García, Marta
A1 Lindoso Muñoz, Almudena
A1 Entrena Arrontes, Luis Alfonso
AB Detecting the effects of transient faults is a key point in many processor-based safety-critical applications. This paper proposes to adopt the debug interface module existing today in several processors/controllers available on the market. In this way, we can achieve a good detection capability and small latency with respect to control flow errors, while the cost for adopting the proposed technique is rather limited and does not involve any change either in the processor hardware or in the application software. The method works even if the processor uses caches and we experimentally evaluated its characteristics demonstrating the advantages and showing the limitations on two pipelined processors. Experimental results performed by fault injection using different software applications demonstrate that the method is able to archieve high fault coverage (more than 95 percent in nearly all the considered cases) with a limited cost in terms of area and performance degradation.
PB IEEE
SN 0018-9340
YR 2016
FD 2016-06-01
LK https://hdl.handle.net/10016/36199
UL https://hdl.handle.net/10016/36199
LA eng
DS e-Archivo
RD 1 sept. 2024