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Altera_Forum's avatar
Altera_Forum
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13 years ago

How to efficiently construct architecture with large amount of identical components

Say an architecture has got 500 ALUs having exactly the same structure. Even if I use COMPONENT in VHDL still I need to instantiate each one of them which is huge amount of labouring...

So what is the efficient way of instantiating the same component for many times?

Thanks a lot!

1 Reply

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

    Draw yourself a picture and try to figure out an indexing scheme for the nets connecting the components. Once you have that, you can create a 'generate' loop where you instantiate the components.

    As an example, look at the multiplexer posted in this thread:

    http://www.alteraforum.com/forum/showthread.php?t=35540

    There's a PDF showing the indexing scheme and then source showing the implementation. The same concept applies when creating adder-trees, bit-error-rate counters, etc.

    Cheers,

    Dave