Multi-context scrubbing method

Fujimori, Takahiro; Watanabe, Minora

doi:10.1109/mwscas.2017.8053231

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…In fact, only one earlier report of the related literature [18], [19], [20], [21] describes that such a robust configuration function can be realized. In that conventional work [16], two configuration contexts using a different gate array resource on an optical FPGA were programmed cyclically onto the optical FPGA as a blind multi-context scrubbing operation. By contrast, this paper presents discussion of a non-blind multi-context scrubbing operation exploiting partial reconfiguration.…”

Section: Multi-context Scrubbingmentioning

confidence: 99%

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Sequential Circuit Implementation Method for Multi-Context Scrubbing Operations on FPGAs

Murakami

Watanabe

2021

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

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This paper presents a proposal for a sequential circuit implementation method for multi-context scrubbing operations that can treat soft-error and permanent failure issues simultaneously. Although multi-context scrubbing operations can treat permanent failure issues on field programmable gate arrays (FPGAs), implementing sequential circuits is difficult because the flip-flop location must be changed while maintaining sequential operations. Therefore, no multi-context scrubbing operation including a sequential circuit has been demonstrated to date. As described herein, a multi-context scrubbing operation using a simple 8-bit counter circuit has been demonstrated perfectly on an Artix-7 FPGA (XC7A35TICSG324-1L). This paper presents experimentally obtained results of that demonstration.

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Section: Multi-context Scrubbingmentioning

confidence: 99%

“…Recently, a new multi-context scrubbing operation that can simultaneously treat soft-error and permanent failure issues has been demonstrated [16], [17]. The multi-context scrubbing method implies that future space embedded systems can use a commercial FPGA instead of an expensive space-grade FPGA.…”

Section: Introductionmentioning

confidence: 99%

Sequential Circuit Implementation Method for Multi-Context Scrubbing Operations on FPGAs

Murakami

Watanabe

2021

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

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Optical Multi-Context Blind Scrubbing for Field Programmable Gate Arrays

Takaki

Watanabe

2020

IEEE Photonics J.

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This paper presents a proposal of a new optical multi-context blind scrubbing that can not only increase the soft-error tolerance of the configuration memory of field programmable gate arrays (FPGAs) but also support high-speed dynamic reconfiguration suitable for accelerating FPGA operations. The optical multi-context blind scrubbing operation uses a holographic memory as a soft-error free radiation-hardened external memory. It exploits its two-dimensional large-bandwidth optical bus. Optical multi-context blind scrubbing operation was demonstrated with four configuration contexts. The soft-error tolerance of the scrubbing operation was evaluated using a radiation tolerance experiment using two 4-MBq Americium-241 alpha particle sources. Results show the worst case mean time to repair (MTTR) of the scrubbing operation as 560 ns, which can realize sufficient softerror tolerance in radiation-rich space environments.

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Multi-context scrubbing method

Cited by 2 publications

References 16 publications

Sequential Circuit Implementation Method for Multi-Context Scrubbing Operations on FPGAs

Sequential Circuit Implementation Method for Multi-Context Scrubbing Operations on FPGAs

Optical Multi-Context Blind Scrubbing for Field Programmable Gate Arrays

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