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Using ALTER statement in ADEL/XL

AlbertoGS

Hi,


I am trying to modify the width of some devices in a extracted view. The normal flow would be to modify the width in the schematic and then re-extract the cellview. However, as a hack I want to be able to modify the design and test it with a different width. I could manually modify the netlist but this is cumbersome when using ADEL/ADEXL and launching a new job recreate a new netlist without my changes.


I am aware that in Spectre it is possible to use ALTER statements to achieve this. It is possible to do the same in ADEL/XL? where can I add such command?

Many thanks,

Alberto Gomez

  • AlbertoGS
    How will a design variable help me change a parameter (say width) of an already extracted view?
  • Frank Wiedmann
    I was not talking about design variables but about device instance parameters.
  • AlbertoGS
    Thanks for that! I wasn't aware of that possibility.

    However, it doesn't completly solved my problem. I am only able to add a instance parameter in the schematic view not in the extracted (as it appears as a layout with tons of parasitc components). And adding the parameter in the schematic will not have any effect in the extracted view. Any suggestion?
  • Frank Wiedmann

    I must admit that I have not tried it with an extracted view yet. However, in my extracted views, I can select the devices in the layout and view their instance properties like for example the instance name. This might be tool-dependent, however (we are using QRC).

  • Andrew Beckett

    You have to be using QRC and at least IC616 for this to work (that's when support for extracted view parameters was added, if my memory is correct - it might have been an IC616 ISR, so check you're using something recent).

    Andrew

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