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change instance name in schematic

SteveRFIC

It is a very simple question, it seems that I can't change an instance name by "q" it in schematic window. I have to go to the property editor and change it there. For instance, I placed a resistor R1 in the schematic and then later I want to change it to R1<2:0>. Naturally I want to q it and then change it there. however, the instance name field is grey. Instead, I have to change it in the property editor. For some reason, changing things in the property editor can be annoying. I click in the field that I want to change, sometimes when my cursor moves, then immediately the edit mode is gone, I have to click again and again.  I don't know why it is happening.

Is there a way that I can edit the instance name by q it in schematic, or how can I fix the input issue in the property editor? I am using IC617.

Thanks!

  • I've never seen the instance name field disabled like that. Sometimes the lib name or cell name fields (by some customisation) but I'm not sure why the instance name field would get disabled.

    I can't see anything in our code that does this. So it might be some customisation which went wrong - worth contacting customer support to see if you can track it down.

    Probably just typing:

    hiSetFieldEnabled(schObjPropForm->instanceName t)

    in the CIW will re-enable it. Don't know why you're having problems with the property assistant - worth talking that through with support too.

    Regards,

    Andrew.

  • Do you have more than one Instance selected?  At the top of the form you see   Apply to:  all selected   Instances of same master

    While this is possible for most of the parameters, it can't be done for instance names for obvious reasons. The property editor assistance
    only works on one instance, that is the reason you can make the edit there.

    I think I saw that in the past.

    Marc

  • Good spot Marc. In fact, even if you only have a single instance selected, and change the Apply To: to "all selected" or "all" it disables the instance name field. 

    That's not the default, so I think it must have been changed by the user to that.

    Andrew.

  • Thank you Marc and Andrew!

    Both of you are correct. Indeed it is the "Apply to: all selected" that is causing the "issue", even if there is only one instance selected.

    It has been bugging me for a while now. sometimes when I restart cadence, then it is ok, after a while then it becomes disabled. I had no clue what changed, now I know :)

    Thanks!

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