Quartus

Clock pin <name> feeding HSDI <transmitter or receiver> synchronizer must be assigned to a global clock pin


CAUSE: You assigned the specified pin to a non-global clock location, or global clock pins may have been assigned to other logic. The Fitter cannot place the specified pin. For best performance, the clock pin must be assigned to a global clock pin position.
ACTION: To avoid receiving this message in the future, modify the design so a global clock pin feeds the HSDI synchronizer.

See also:

Assigning Pins
Changing Assignments
Deleting Assignments in the Assignment Organizer Dialog Box
Overview: Making Assignments
Overview: Working with Assignments in the Floorplan Editor

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