Title

A Self-Configuring Tmr Scheme Utilizing Discrepancy Resolution

Keywords

Evolvable hardware and dynamic reconfiguration; Reconfiguration techniques to improve fault tolerance

Abstract

We employ output-discrepancy consensus to mitigate faulty modules of a Triple Modular Redundant (TMR) arrangement using dynamic partial reconfiguration. Traditionally, the fault-handling resilience of a TMR arrangement is limited to fault(s) in a single TMR instance over the entire mission duration. An additional permanent fault in any of two other TMR instances results in mission's failure. However, in this work, a novel Self-Configuring approach for Discrepancy Resolution (SCDR) is developed and assessed. In SCDR, the occurrence of faults in more than one module initiates the repair mechanism, then upon fault recovery, the system is configured into Concurrent Error Detection (CED) mode. The approach is validated by the complete recovery of a TMR realization of 25 stage Finite Impulse Response (FIR) filter implemented on a reconfigurable platform as a case study. The results show that a self-healing circuit can be realized exploiting the dynamic partial reconfiguration capability of FPGAs while requiring a streamlined operational data path compared to TMR. © 2011 IEEE.

Publication Date

12-1-2011

Publication Title

Proceedings - 2011 International Conference on Reconfigurable Computing and FPGAs, ReConFig 2011

Number of Pages

398-403

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/ReConFig.2011.5

Socpus ID

84856933676 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84856933676

This document is currently not available here.

Share

COinS