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Altera_Forum's avatar
Altera_Forum
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13 years ago

Simulation with Altera modelsim Starter edition

Hello everyone,

I am trying to use Altera Modelsim6.6, to simulate my design; it works correctly for seperate files,

but it doesn't when i try to compile top level modules. "the message says component declation missing". the same design is compiled correctly with QuartusII. knowing that i did specify the order of compilation.

did anyone have this problem? how can i correct it?

thank you for you help.

Regards,

1 Reply

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

    what about the top level testbench?

    Quartus is a little more lenient than modelsim. you need xcomponent declarations or direct instantiation for all sub-modules