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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
7 years ago

Modelsim & VHDL Configuration

Hi,

I have one entity in a file and several architectures in separe files.

Each architecture file have a configuration statement. 


configuration CONFIGURATION_NAME of INSTANTIATING_ENTITY is   
    for INSTANTIATING_ARCH      
       for INSTANCE_NAME : COMPONENT_NAME       
          use entity LIBRARY_NAME.ENTITY_NAME(ARCHITECTURE_NAME);     
       end for;   
    end for; 
end CONFIGURATION_NAME;

and I call vsim like that : vsim -novopt LIBRARY_NAME.CONFIGURATION_NAME

I wanted to speed up simulation so I removed -novopt and the design failed to be loaded.

Can you confirm Modelsim does not support configuration feature in optimized mode ? ( tried on 10.0e and 10.5c)

Best regards

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    7 years ago

    Hi,

    The issue maybe due to the fact that you have earlier compiled and simulated the design using the vopt switch. You could try by recompiling the design and then simulating using it without using the vopt argument. This happens because the earlier compilations and simulations would have produced an optimized simulation database, and when you try and simulate the same deign(database) without the optimization the tool will throw errors.

    All you need to do is to recompile the entire design and simulate it again without using the optimization (vopt).