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Combining multiple calculator outputs into a vector/bus in Virtuoso Assembler

baltaci
baltaci 1 month ago

Hi,

I’m using the Virtuoso Assembler Calculator (IC23.1-64b.43) to define multiple output expressions (e.g., dout_0, dout_1, …, dout_63). These are all analog waveforms created via expressions.

All of these waveforms share the same time axis (same independent variable / time sweep), i.e., they are aligned sample-by-sample in time.

What I would like is to combine these individual calculator outputs into a single vector/bus-like waveform, similar to how one can access a bus using:

VT("/bus<63:0>")

So essentially:

dout_0, dout_1, ..., dout_63  →  dout_bus[63:0]

What I tried:

  • Using vector(...) in the Calculator → did not work

  • Using SKILL function awvCreateBus → works only for digital waveforms

Questions:

  1. Is there a way in the Calculator or Assembler to group multiple analog waveforms (with the same time axis) into a single vector/bus?

  2. Is there any supported function (Calculator or SKILL) for analog waveform grouping?

  3. If not, what is the recommended workflow for handling large numbers of related outputs?

Thanks!

Can

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  • JankoK
    JankoK 1 month ago

    Hi Can,

    Good question that sounds very familiar... I think I was trying to do the same, but can't find anything in my notes.

    I guess you could use this SKILL function from Andrew Beckett  if you want to stay "analog":

    How to create a group of signals in the calculator?

    Or, if it is ok for you to go digital, you can try this one:

    SKILL procedure to create a digital bus from a list of analog signals

    BR

    /Janko

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