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Altera_Forum's avatar
Altera_Forum
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15 years ago

how to constrain routing in cyclone fpga?

hi... i want my placement and routing in the fpga to be constant whenever i do some change in some code anywhere in the project. please suggest me how to achieve it?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

You can back annotate the results of a fitter run, including LAB and LE placement, and including routing. This works in the web edition of Quartus as well. But in many cases this would result in sub optimal fitting.