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  3. how to adjust pin to pin distance when create schematic...

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how to adjust pin to pin distance when create schematic by pin list

KC Lee
KC Lee over 2 years ago

I create schematic by pin list. The pin to pin distance is larger than what I need. How can I adjust that pin to pin distance?  I like to put pins side by pin to connect another cell. The distance should match symbol pin distance. 

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  • Andrew Beckett
    Andrew Beckett over 2 years ago

    It appears that the pin spacing is set to 0.25 or if there's a property on the view (in the property bag), then it will use 4 times that (the property being xSnapSpacing). Unfortunately it seems you have to create the schematic first just to keep everything happy:

    cv=dbOpenCellViewByType("opamp090" "testpincreate" "schematic" "schematic" "a")
    bag=dbOpenBag(ddGetObj("opamp090" "testpincreate" "schematic") "a")
    bag~>xSnapSpacing=0.03125
    dbSaveBag(bag)
    dbCloseBag(bag)
    ; do not close the cellView as otherwise it will get deleted - perhaps should just do dbSave(cv) first?
    ;dbClose(cv)

    then you can do the pin creation for the schematic. Not sure this is a particularly sustainable approach, so it might be best to request an enhancement to control the pin spacing default with a cdsenv variable, say.

    Regards,

    Andrew

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