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OK, that almost makes sense. May I suggest "As inputs with weak pull-up" as the default? It's less likely to damage something than driving ground as well as able to deal with floating inputs. Seems win-win to me...
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Seems reasonable to me too. The follow up argument made is that outputs driving GND will act as programmable grounds to help SSN, although I don't believe unconnected GNDs really helps SSN much. Simply having a tri-stated pin next to aggressors helps just as much as an output driving GND.
So the real case to be made is to ask for a user specified default for all of these items listed above. I don't want to edit my qsf for each project, I want to login into Quartus on my machine have it know what defaults I set the first time I ran a project. Mysupport enhancement request...
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