ID:16561 The SignalTap II Logic Analyzer can't tap node "<bus_name>" because it is a bus. The SignalTap II Logic Analyzer only taps individual nodes. Remove the bus node and add each bit of the bus separately and then try to tap the node again.

CAUSE: You attempted to tap a bus node as a single wire.

ACTION: In the SignalTap II Logic Analyzer, on the Setup Tab, remove the bus node and add each bit of the bus separately and then try to tap the node again.