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My thought was that if it's configuration load being corrupted (Their question was "What if it doesn't load right?"), but no matter how many times you reconfig, it won't un-corrupt that load.
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Correct - if the FPGA does not load due to a corrupt configuration, then a watchdog will not help.
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I think their concern is that if the FPGA "stops working" they didn't know if there was a way to automatically wipe it clean and start fresh.
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Under what conditions are they expecting an FPGA to 'stop working'?
Cheers,
Dave