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Honored Contributor
Honored ContributorDCLK and DATA0 connected to LVDS output instead of floating
The Cyclone II handbook says that after programming, the DCLK and DATA0 inputs should not be left floating and should therefore be connected to a logic high or low. However, it also states that th...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- 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. --- Quote End --- 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). --- Quote Start --- You could add a small MAXII to decode configuration messages giving you remote configuration back. --- Quote End --- 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.
