A self-adaptive SEU mitigation system for FPGAs with an internal block RAM radiation particle sensor

Robért Glein, Bernhard Schmidt, Florian Rittner, Jürgen Teich, Daniel Ziener

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    25 Citations (Scopus)

    Abstract

    In this paper, we propose a self-adaptive FPGAbased, partially reconfigurable system for space missions in order to mitigate Single Event Upsets in the FPGA configuration and fabric. Dynamic reconfiguration is used here for an on-demand replication of modules in dependence of current and changing radiation levels. More precisely, the idea is to trigger a redundancy scheme such as Dual Modular Redundancy or Triple Modular Redundancy in response to a continuously monitored Single Event Upset rate measured inside the on-chip memories itself, e.g., any subset (even used) internal Block RAMs. Depending on the current radiation level, the minimal number of replicas is determined at runtime under the constraint that a required Safety Integrity Level for a module is ensured and configured accordingly. For signal processing applications it is shown that this autonomous adaption to the different solar conditions realizes a resource efficient mitigation. In our case study, we show that it is possible to triplicate the data throughput at the Solar Maximum condition (no flares) compared to a Triple Modular Redundancy implementation of a single module. We also show the decreasing Probability of Failures Per Hour by 2 × 104 at flare-enhanced conditions compared with a non-redundant system. Our work is a part of the In-Orbit Verification of the Heinrich Hertz communication satellite.

    Original languageEnglish
    Title of host publication2014 IEEE 22nd International Symposium on Field-Programmable Custom Computing Machines (FCCM)
    Place of PublicationPiscataway, NJ
    PublisherIEEE
    Pages251-258
    Number of pages8
    ISBN (Electronic)978-1-4799-5111-6, 978-1-4799-5110-9
    DOIs
    Publication statusPublished - 21 Jul 2014
    Event22nd IEEE International Symposium on Field-Programmable Custom Computing Machines, FCCM 2014 - Boston, United States
    Duration: 11 May 201413 May 2014
    Conference number: 22
    http://www.fccm.org/2014/

    Conference

    Conference22nd IEEE International Symposium on Field-Programmable Custom Computing Machines, FCCM 2014
    Abbreviated titleFCCM
    CountryUnited States
    CityBoston
    Period11/05/1413/05/14
    Internet address

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