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saving results with same net names of two different cells

EngrZM

hi

I ran two simulations separately to compare the output of two circuits (Both circuits are in same library with different cells but nodes names are similar). I cannot compare the two results as only the last ended simulation results are available against both net name. 

How can i store the results with same net names of two different cells? (actually its hectic in my test setup to assign different net names)

Thanks

zubair

Parents
  • Andrew Beckett

    Zubair,

    I've read through your post several times, and I don't understand what you're trying to do or what is going wrong. You don't even mention which tools you're using.

    So please clarify your question to stand a chance of getting an answer (I suggest you read the forum guidelines too).

    Regards,

    Andrew.

  • EngrZM
    in reply to Andrew Beckett

    I apologize for the inconvenience. i am using virtuoso IC6.1.5.500.16.2

    let me ask through an example:

    I have two signal and want to subtract them to get difference. 

    Signal 1 is reference signal without noise

    signal 2 is signal with noise.

    Subtracting both will give only noise.

    I have to run transient simulation two times on same circuit. 

    one time without noise (ref signal)

    second time including noise. (signal with noise)

    i appended the two results. but when taking the difference it says "the output xyz does not exist" (xyz is the first transient simulation result). 

    i also tried with both schematics in:

    - same cell view

    -in different cell views 

    -in different libraries

    but issue is same. I want to know how can i hold the previous simulation results?

    kind regards

    zubair

Reply
  • EngrZM
    in reply to Andrew Beckett

    I apologize for the inconvenience. i am using virtuoso IC6.1.5.500.16.2

    let me ask through an example:

    I have two signal and want to subtract them to get difference. 

    Signal 1 is reference signal without noise

    signal 2 is signal with noise.

    Subtracting both will give only noise.

    I have to run transient simulation two times on same circuit. 

    one time without noise (ref signal)

    second time including noise. (signal with noise)

    i appended the two results. but when taking the difference it says "the output xyz does not exist" (xyz is the first transient simulation result). 

    i also tried with both schematics in:

    - same cell view

    -in different cell views 

    -in different libraries

    but issue is same. I want to know how can i hold the previous simulation results?

    kind regards

    zubair

Children
  • Andrew Beckett
    in reply to EngrZM

    Zubair,

    You probably (if you're using ADE L, you didn't say) have to do Results->Save after the first run to save the results under a different name, and then run the second simulation. You can then plot the signal from the second simulation, and use the results browser to navigate to the saved simulation results, and then subtract that. If you do this, the latest run with be picked up by virtue of being "in context", whereas the expression for the saved results will include the directory path for where the simulation data is located.

    Regards,

    Andrew.

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