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Altera_Forum's avatar
Altera_Forum
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10 years ago

Incremental Compilation and SignalTap

Hi all, My understanding is that we cannot preserve the placement & routing if we create a new partition under the top-level design (which is a partition by default). In this case, how does the...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

I was referring to normal devices ( I wasnt aware Arria10 is not able to preserve its routing). That leads me to another question, in order to preserve the P&R of entire design, do I need to also set the other sub-partitions to PostFit or only the Top to Postfit + other partitions under it to SourceFile will just work fine?

Besides source files, what other changes will break the post-fit preservation? I believe SDC file changes will. How about fitter settings (i.e seed sweep, routing/placement effort, physical synthesis). Which will take precedence?