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  3. Plot analog bus with non-overlayed traces in ViVa

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Plot analog bus with non-overlayed traces in ViVa

HoWei
HoWei over 5 years ago

Hi,

I do have an analog bus "vout<31:0>" and a output expression "VT("/vout<31:0>")", and I want to plot the transient signals.

In ViVa it plots all signals on top of each other (overlayed).

But I want to see each signal in a seperate trace (e.g. like in a logic analyzer).

The only way I found is to have an extra output expression for each signal, e.g. VT("/vout<0>") VT("/vout<1>") VT("/vout<2>") and so on.

But I stronlgy belief (hope) that there is a better way to plot a analog bus transient signal.

Having 16,32 or 64 bit busses and each signal its own output equation would be really annoying.

Please tell me how to plot the analog bus signals each in a seperate trace -  pleeease ;-)

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  • HoWei
    HoWei over 5 years ago

    i am aware of the Measurements->AnalogtoDigital functionality in ViVa, but how can I use this via an output expression ?

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  • HoWei
    HoWei over 5 years ago in reply to HoWei

    Sorry for bothering - I found the correct expression eventually:

    analog2Digital(VT("/vout<31:0>")  "center" ?vCenter 0.5)

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  • HoWei
    HoWei over 5 years ago in reply to HoWei

    Well actually this is "digitizing" my analog signal - it removes all over/undershoots and amplitude noise.

    Is there a way to keep the signal "analog" and plot it like this ?

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  • Andrew Beckett
    Andrew Beckett over 5 years ago in reply to HoWei

    Well, if you plot them you can then use the Split All Strips icon in ViVA and pick "bit' or "leaf" in the cyclic next to it.

    What ought to be possible if  you're using ADE Explorer or Assembler, and IC618/ICADVM181 is that you should be able to do this once and then save that as a plotting template, then plot using that template. 

    Except it doesn't work for this right now. It plots everything in a single strip again when using the template, and worse it uses the same colour for all bits. I'll file a CCR and report that back here.

    Andrew.

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  • Andrew Beckett
    Andrew Beckett over 5 years ago in reply to Andrew Beckett

    I filed CCR 2206122 - if you want to track this, please contact customer support and ask for a duplicate to be filed.

    Thanks,

    Andrew.

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  • Andrew Beckett
    Andrew Beckett over 5 years ago in reply to Andrew Beckett

    I filed CCR 2206122 - if you want to track this, please contact customer support and ask for a duplicate to be filed.

    Thanks,

    Andrew.

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