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  3. Issue on Running simulation with VerilogA and SystemVerilog...

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Issue on Running simulation with VerilogA and SystemVerilog in virtuoso - Z output

AmirMasnadi
AmirMasnadi 4 months ago

I am trying to run an AMS sim in virtuoso where I do have a systemVerilog block and verilogA block instantiated in schematic view.  Each block works fine stand alone but when I make a testbench together the verilogA output is all Z . Any idea what is wrong ? 

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  • engineer27
    engineer27 2 months ago

    Check your discipline resolution. You may need "detailed" resolution. If you did not set it explicitly, you are likely using "default."

    Here are a couple of articles that address the topic:

    Article (20498260) Title: How are disciplines assigned/resolved in mixed-signal simulation during elaboration?
    URL: https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1O3w000009EqUZEA0

    Article (20485101) Title: Mixed Signal Verification - Connectivity Overview
    URL: https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1O0V000006DfnQUAS

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