Article Details

ID: 7000
Case Type: faq
Category:
Related To:
Family: MACHXO5

Search Answer Database

Search Text Image

Lattice Radiant: Why does the constraint coverage did not improve after using set_false_path constraint?

By Default, set_false_paths does not improve constraint coverage, however For Radiant 2023.1 or later, the user can use the Timing Command Line Option "-false_covers" to add in the false paths to the timing coverage. 
This can be applied on the Strategy settings as shown on the image.

Note: This only serves as a workaround, utilizing -false_covers may increase PAR runtime for each false path defined.