SRAM-based FPGAs meet next-generation mission requirements with improved performance, logic density, and flexibility. Nanoscale technology shrinks devices, making them more radiation-sensitive. For fault-tolerant circuits, radiation-induced effects are significant in mission-critical applications like spacecraft and nuclear power plants. Various fault tolerance mechanisms have been presented over time. Triple Modular Redundancy (TMR), a 3-tuple N-modular redundancy with a voting circuit, is used in FPGAs. The word voter in this work offers an advantage over standard TMR systems that employ bit-by-bit voting and an error checking circuit to save time selecting output. This article implements the word voter with matching circuits in Vivado using TMR IPs and LUT primitives. The FIR filter implementation choices are examined for Zynq-7000 FPGA implementation, ensuring 100% error correction and enhanced resource utilization.

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An Area Efficient And Improvised Fault-Tolerant FIR Filter Using Word Voter

  • M. Deepa,
  • P. Augusta Sophy Beulet

摘要

SRAM-based FPGAs meet next-generation mission requirements with improved performance, logic density, and flexibility. Nanoscale technology shrinks devices, making them more radiation-sensitive. For fault-tolerant circuits, radiation-induced effects are significant in mission-critical applications like spacecraft and nuclear power plants. Various fault tolerance mechanisms have been presented over time. Triple Modular Redundancy (TMR), a 3-tuple N-modular redundancy with a voting circuit, is used in FPGAs. The word voter in this work offers an advantage over standard TMR systems that employ bit-by-bit voting and an error checking circuit to save time selecting output. This article implements the word voter with matching circuits in Vivado using TMR IPs and LUT primitives. The FIR filter implementation choices are examined for Zynq-7000 FPGA implementation, ensuring 100% error correction and enhanced resource utilization.