Forum Discussion

student8's avatar
student8
Icon for New Contributor rankNew Contributor
2 years ago

Why does fitting fail when there are still resources available?

Layout and routing resources are still available, but layout fails. The Quartus error is as follows: Error (170143): Final fitting attempt was unsuccessful Info (170138): Failed to route the...
Board Debug
Configuration
sstrell's avatar
sstrell
Icon for Super Contributor rankSuper Contributor
2 years ago

You'd have to show some code. Something is making the fitter think the two signals need to use the exact same resource, which is very odd. Show code and any unique assignments you may have in the Assignment Editor or Pin Planner.