Quartus

Can't place carry chain that starts with node <name> -- carry chain uses multiple S_LOAD signals


CAUSE: You have assigned multiple S_LOAD signals to the carry chain with the specified node. The Quartus II software cannot place the carry chain in the device, because each LAB can have only one S_LOAD signal, which is shared by all logic cells.
ACTION: Reduce the number of the S_LOAD signals you assign to the carry chain to one or delete the S_LOAD assignments.

- PLDWorld -

 

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