Device Family: Intel® Arria® 10, Arria® II, Arria® V, Arria® GX, Intel® Cyclone®, Cyclone® II, Cyclone® III, Cyclone® IV, Cyclone® V, Intel® MAX® 10, Intel® Stratix®, Stratix® II, Stratix® III, Stratix® IV, Stratix® V

Type: Answers

Area: Component

How can I stop the Quartus II software from merging PLLs in my design?


You can disable PLL merging in the Quartus® II software by adding the following assignment to your .qsf file:

set_global_assignment -name AUTO_MERGE_PLLS OFF

This setting can be also be accessed from the Assignments Menu, by clicking on Settings -> Fitter Settings -> More Fitter Settings.