Quartus

Ignored some user assignment because of placement requirements for assigned differential I/O standards


CAUSE: You assigned the nodes listed in the Messages window to custom regions and/or LogicLock regions, but the same nodes also have differential I/O standards assigned to them which require specific placements to function correctly. To ensure the placement requirements of differential I/O standards were met, the Fitter ignored the LogicLock and custom region assignments from these nodes.
ACTION: Refer to the submessage(s) in the Messages window to determine for which nodes the Fitter ignored LogicLock and/or custom region assignments. Remove the custom regions and/or LogicLock assignments from the nodes listed in the Messages window.

See also:

Assigning an Entity or Node to a Location
Changing Assignments
Deleting Assignments in the Assignment Organizer
Overview: Making Assignments
Overview: Working with Assignments in the Floorplan Editor

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