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Cannot add dummy net on No Connection pin

Dinesh K

Hi,

I need to put Dummy net on NC pin of a LED. But when i put Dummy net and try to assign to that pin it is showing "cannot assign dummy net to that pin".

I need to put dummy net on that pin for heat dissipation.

Thanks & Regards,

K.Dinesh

  • Sutha

    hi, dinesh

                   Actually it is possible you mentioned above that?

  • redwire

    You don't need to put "Dummy" net on the pin.  All unassigned pins get an internal definition of "Dummy" automatically.  You can always click and route from a pin or connect with a shape.  Just will have a DRC that needs to be waived.

  • Wild

    What I do (16.6) is add a short net to a pin in the schematic.  Then in the constraint manager I create a dummy CSet and create net properties such as spacing.  Once the CSet is created i assign the short net to the Cset. 

    I do this alot for electric spacing on pins attached to packages that are design as a non bonded (internally) pins that are designed such to meet electrical clearances between to high voltage pins.  This way I don't have to wave DRC's (I don't like any DRC's even waved ones).

  • redwire
    in reply to Wild

    That's actually the best way IMHO to do it -- as you point out you can class these nets appropriately.

  • Dinesh K
    in reply to redwire

    Hi,

    I did it. But still it is not getting connected. I am sharing the screen shot below for your reference.

    .

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