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Problem with Co-simulation: Cadence Virtuoso and Matlab

Conhas

When simulate (transient )my design stand alone, it works but when I try to co-simulate it with MATLAB I get the following errors,  please help

Error found by spectre during hierarchy flattening.
    ERROR:  Co-simulation outputs setting error: Unknown error. Check output freqOut.


Time for EDB Visiting: CPU = 6.999 ms, elapsed = 6.19507 ms.
Time accumulated: CPU = 877.866 ms, elapsed = 2.97763 s.
Peak resident memory used = 89.7 Mbytes.

spectre terminated prematurely due to fatal error.

Please Help.

Thank you very very much in advance.

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  • Andrew Beckett

    No idea then, sorry - however, I would suggest trying something newer than a 4-5 year old simulator release (especially in terms of compiler compatibility with Matlab; it's unlikely we "support" such a newer version of Matlab in a release from 2 years or so beforehand).

    Actually, I just took a look at the schematic - and I see that the node is labelled FB, but has a pin on it called freqOut. This is legal, but my guess is that the net in the netlist is called "FB" not "freqOut". So try changing the name on the Matlab/Simulink setup form to "FB" and see if that works instead. I'm assuming you didn't use the "Select" button next to the Cosimulation Outputs button as this should have picked the net name (unless of course you added the label later).

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    No idea then, sorry - however, I would suggest trying something newer than a 4-5 year old simulator release (especially in terms of compiler compatibility with Matlab; it's unlikely we "support" such a newer version of Matlab in a release from 2 years or so beforehand).

    Actually, I just took a look at the schematic - and I see that the node is labelled FB, but has a pin on it called freqOut. This is legal, but my guess is that the net in the netlist is called "FB" not "freqOut". So try changing the name on the Matlab/Simulink setup form to "FB" and see if that works instead. I'm assuming you didn't use the "Select" button next to the Cosimulation Outputs button as this should have picked the net name (unless of course you added the label later).

    Regards,

    Andrew.

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