Fine-Grain Circuit Hardening Through VHDL Datatype Substitution
AbstractRadiation effects can induce, amongst other phenomena, logic errors in digital circuits and systems. These logic errors corrupt the states of the internal memory elements of the circuits and can propagate to the primary outputs, affecting other onboard systems. In order to avoid this, Triple Modular Redundancy is typically used when full robustness against these phenomena is needed. When full triplication of the complete design is not required, selective hardening can be applied to the elements in which a radiation-induced upset is more likely to propagate to the main outputs of the circuit. The present paper describes a new approach for selectively hardening digital electronic circuits by design, which can be applied to digital designs described in the VHDL Hardware Description Language. When the designer changes the datatype of a signal or port to a hardened type, the necessary redundancy is automatically inserted. The automatically hardening features have been compiled into a VHDL package, and have been validated both in simulation and by means of fault injection. View Full-Text
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Muñoz-Quijada, M.; Sanchez-Barea, S.; Vela-Calderon, D.; Guzman-Miranda, H. Fine-Grain Circuit Hardening Through VHDL Datatype Substitution. Electronics 2019, 8, 24.
Muñoz-Quijada M, Sanchez-Barea S, Vela-Calderon D, Guzman-Miranda H. Fine-Grain Circuit Hardening Through VHDL Datatype Substitution. Electronics. 2019; 8(1):24.Chicago/Turabian Style
Muñoz-Quijada, Maria; Sanchez-Barea, Samuel; Vela-Calderon, Daniel; Guzman-Miranda, Hipolito. 2019. "Fine-Grain Circuit Hardening Through VHDL Datatype Substitution." Electronics 8, no. 1: 24.
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