EXFI: a low-cost fault injection system for embedded microprocessor-based boards

  • Authors:
  • A. Benso;P. Prinetto;M. Rebaudengo;M. Sonza Reorda

  • Affiliations:
  • Politecnico di Torino, Torino, Italy;Politecnico di Torino, Torino, Italy;Politecnico di Torino, Torino, Italy;Politecnico di Torino, Torino, Italy

  • Venue:
  • ACM Transactions on Design Automation of Electronic Systems (TODAES)
  • Year:
  • 1998

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Abstract

Evaluating the faulty behavior of low-cost embedded microprocessor-based boards is an increasingly important issue, due to their adoption in many safety critical systems. The architecture of a complete Fault Injection environment is proposed, integrating a module for generating a collapsed list of faults, and another for performing their injection and gathering the results. To address this issue, the paper describes a software-implemented Fault Injection approach based on the Trace Exception Mode available in most microprocessors. The authors describe EXFI, a prototypical system implementing the approach, and provide data about some sample benchmark applications. The main advantages of EXFI are the low cost, the good portability, and the high efficiency