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Altera_Forum's avatar
Altera_Forum
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17 years ago

Long place and route after adding logic lock regions

In the past, when quartus could not fit designs, it usually bailed on me after about 8 hours of place and route. I added logic lock regions so I could isolate partitions for timing and close ti...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

I've never modified globals as an ECO. Not sure it's possible. Another try might be to copy the project(backup), set the top-level(and only, I assume) partition to post-fit(strict) placement. Make all your assignment changes and rerun. Not sure it will work, but pretty easy since you need to make the assignment changes anyway. And post the info if you want, as Stratix II GX shouldn't have any difficulty fitting a 55% full design.