Quartus

Can't place logic cells that do not use the <type> signal into <name>. In this device, <type> signals are global to the LAB; all or none of the logic cells must use it.

CAUSE: You used the Assignment Organizer command (Tools menu) to assign logic cells that do not use the specified signal type to the specified LAB, which does use the signal type. This signal type is LAB-wide. Accordingly, the Fitter cannot place logic cells that do not use the specified type of signal in the specified LAB when the LAB uses this signal.
ACTION: Move logic cells that do not use the specified signal to other LABs.

- PLDWorld -

 
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