Quartus

Virtual pin clock <name> for virtual pin <name> does not exist in the design -- auto-selecting clock

CAUSE: You assigned the Virtual Pin Clock logic option to the specified pin. However this pin does not exist in the current design. When this condition occurs, the Compiler automatically selects an appropriate virtual pin clock.
ACTION: No action is required. To avoid receiving this message in the future, assign the Virtual Pin Clock assignment to an existing clock signal in the design.

See also:

Overview: Making Assignments

- PLDWorld -

 
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