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Hi - I'm using the Xilinx ISIM(13.3) simulator and have a problem when trying to run a post route simulation.
The behavioral simulation runs fine, but when I go to run the post route simulation the design hierarchy does not instantiate a behavioral Ethernet mac model I have in my testbench (I just see that square with orange question marks).
When I try to either "Add file" or "add copy of the file" it says it already exists in the design hierarchy. I have tried running the simulation and it is not invoking the MAC model.
BTW the design hierarchy does instantiate the post route netlist for my design okay - its just not picking up part of the testbench.