A software based approach to eliminate all SEU effects from mission critical programs

Lesage, Laurent;Mejias Candia, Boris César;Lobelle, Marc
(2011) RADECS 2011 PROCEEDINGS [SOFTWARE BASED APPROACH TO ELIMINATE ALL SEU EFFECTS ] — Location: Sevilla, Spain (19.September.2011)

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Authors
  • Lesage, LaurentUCLouvain
    Author
  • Mejias Candia, Boris CésarUCLouvain
    Author
  • Lobelle, MarcUCLouvain
    Author
Abstract
On space missions, software suffers from Single Event Upsets (SEUs), producing bit-flips. A single bitflip can impede the whole program. In this work we present a novel software based approach to tolerate SEUs) by redundant execution and protected memory. This approach can protect specifically designed programs against all SEUs. Our aim is to be able to use of-the-shelf processors and other complex circuits by designing appropriately the software and simple hardened devices (e.g. memory). A Linux based simulator has been developed and implemented: it uses, validates and allowed us to refine our hypotheses. A hardware prototype confirmed these results
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Lesage, L., Mejias Candia, B. C., & Lobelle, M. (2011). A software based approach to eliminate all SEU effects from mission critical programs. RADECS 2011 PROCEEDINGS [SOFTWARE BASED APPROACH TO ELIMINATE ALL SEU EFFECTS ], Sevilla, Spain. https://hdl.handle.net/2078.5/229024