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There is a valid reason why some components are called 'interface circuits' and others just 'logic'. Going over a cable definitely is an 'interface' job.
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It all depends on electrical specs, and it doesn't seem that builtin Cyclone II's LVDS buffers are so bad after all (except for the too low ESD values).
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You could add a small MAXII to decode configuration messages giving you remote configuration back.
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The MAXII doesn't do LVDS, so I'd need buffers again, besides the MAXII is a considerable extra cost. I still have remote reconfiguration, albeit indirectly by reprogramming the flashrom through the same active/booted FPGAremote.
Honored Contributor
