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Altera_Forum
Honored Contributor
18 years agoi think xilinx offers a few families which are being field tested in space right now.
That's possible. I also know of at least one project that's evaluating un-hardened Xilinx chips for space. "Hardening" consists of triple-redundancy of the design, obeying some design restrictions within each replicated module, and using partial reconfiguration to scrub the chip more or less continuously. Scrubbing means disabling one of the three replicas while the other two keep on working, and rewriting it with the same configuration bits so any bit-flips get cleaned out. They don't even look to see whether bits have flipped - they just assume it happens. Actel's antifuse arrays have been in space a lot, but don't have the arithmetic capability of doing much compression.