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How to extract MPP cut shapes

Ferdz

Hi,

I have a MPP which is constructed like a co-axial shield.

My problem is, the connectivity of the Subpart->Subrectangle are not extracted.

I heard that in cadence 6.1.6.500.8 / 9 /10 there is an envar to fix this

envSetVal("layoutXL" "_extractIgnoreMPPCutShapes" ‘boolean nil)

But I am using cadence 6.1.6.500.7, the envar mentioned above is not yet registered to this cadence version.

Anyone who has a solution?

Thanks in advance,

Ferdinand

  • Wouldn't the simplest solution be just to move to a later hotfix? (I don't know of a workaround without spending time looking into this in more detail, which I don't have at the moment).

    Regards,

    Andrew.

  • Hi Ferdinand,

    I don't have time to test this, but you have access to all of the constituent parts of an MPP, I think from the top-level ROD object you can look over the subShapes and then investigate or set the connectivity (via the 'net' attribute).  If you have the master selected, try something like this:

    
rodId = rogGetObject(car(geGetSelectedSet()))
;; look at the following 
rodId~>subShapes~>net
;; ... and if they were all nil, try this
rodId~>subShapes~>net = rodId~>dbId~>net

    Hopefully this will work as a short-term workaround until you can move to a new release?

    Regards,

    Lawrence.

  • Hi Andrew and Lawrence,

    Thanks for your response.

    Unfortunately I have no freedom to deviate from our project environment so I can't use later cadence version,

    and indeed I am left with a workaround to assign nets manually(or  by skill).

    regards,

    Ferdinand

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