A Fault-Tolerant Time-Predictable Processor

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Advancements in commercial space applications have increased interest in deploying FPGA devices with soft processors on satellite systems. Processors are a vital component in all satellite payloads used for control functions and on-board data processing. However, a high integration level within an FPGA causes high sensitivity to ionising radiation-induced errors, requiring mitigation for single event effects to ensure reliable operation. In this paper, a triple-core lock-step processor for radiation-induced soft-errors mitigation is presented that aims to reduce the probability of a processor failure due to soft-errors. Aerospace applications are also defined by strict real-time requirements for processors, thus the design is implemented using Patmos, a time-predictable processor of the T-CREST multicore research platform.
Original languageEnglish
Title of host publicationProceedings of 2019 IEEE Nordic Circuits and Systems Conference
Number of pages6
Publication date2019
ISBN (Print)9781728127699
Publication statusPublished - 2019
Event2019 IEEE Nordic Circuits and Systems Conference - Helsinki, Finland
Duration: 29 Oct 201930 Oct 2019


Conference2019 IEEE Nordic Circuits and Systems Conference
Internet address
Series2019 Ieee Nordic Circuits and Systems Conference (norcas): Norchip and International Symposium of System-on-chip (soc)


  • Fault-tolerance
  • Triple-modular redundancy
  • Lock-step
  • Single event upsets
  • Time-predictable architecture

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