Occasional Contributor
Super ContributorJust don't make an assignment for it in the Pin Planner. If you still want to maintain the signal so it doesn't get optimized away, create Virtual Pin assignments in the Assignment Editor for any top-level pins you want to preserve.
Occasional ContributorDear sstrel,
I followed your suggestion, but my fitter just assigns random locations when I leave it blank (see attached picture, yellow marker).
How to prevent?!?
Occasional ContributorUseful link: Pin-Outs Files (PDF, TXT, XLS) for all Intel FPGAs:
https://www.intel.com/content/www/us/en/support/programmable/support-resources/devices/lit-dp.html
Super ContributorAs I mentioned, you have to make Virtual Pin assignments to any top-level signals you want to keep but don't want to connect to a physical pin.
