Slightly-off-specification failures in the time-triggered architecture

Authors:
A. Ademaj
Affiliations:
Real-Time Syst. Group, Vienna Univ. of Technol., Austria
Venue:
HLDVT '02 Proceedings of the Seventh IEEE International High-Level Design Validation and Test Workshop
Year:
2002

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Abstract

Slightly-off-specification (SOS) failures can occur at the interface between the analog and the digital world. If an erroneous node in a distributed system produces an output signal (in time or value) slightly outside the specified window, some nodes will correctly receive this signal, while others might fail to receive it. Such a scenario will result in an inconsistent state of the distributed system. We present the observed temporal SOS failures in the time-triggered architecture with the bus interconnection structure during the execution of the software implemented fault injection in the TTP/C communication controller. Solutions to avoid the occurrence of the temporal SOS failures in the time-triggered architecture are analyzed and presented.