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Altera_Forum
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16 years ago

Issue with Pin assignment using Quartusii

Hi all, During compiling process of design at I/O analysis stage a critical warning message is coming stating that "No exact pin location assignments for 29 pins of 49 total pins". Please ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

In your pin assignment, you are leaving certain pins unassigned, that is why this warning is coming. If, they are of no use, then you can remove them from entity and make them as signals, else you map them to free I/Os. It might happen that if you havent assigned some pins, then they may drive other things on your board, giving rise to erroneous behavior (this might be the reason for warning being critical)