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create schematic from layout using skill.

151515

I want to create schematic from layout using skill.

i know SKill coding.
I dont know how to start-with and where to start with.
Can someone help me on this?

Thanks & Regards,

  • I copied pmos and nmos from other schematic using these commands.


    pmos = car(setof(i inst i~>cellName == "PCH_1P0V" ))
    nmos = car(setof(i inst i~>cellName == "NCH_1P0V" ))
    schCopy(pmos cv list(0:0 "R0"))
    schCopy(nmos cv list(0:0.01 "R0"))

    but the copied pmos and nmos does'nt have all the properties as that of original one such as width,length and drain/source/gate are not defined in the copied one.

    How to copy the pmos with the properties retained?

    And how to connect a wire using skill say from drain of pmos to drain of nmos?

    Sumone please help me with this issue..

    Thanks & Regards,

  •  Hi,

     

    what you are trying to do is very complex i think using skill - especially if you have a lot of components.  Did you think abouthow you are going to manage flatten pcells? with your approach, it will be very tough using skill.

    anyway, one idea could be: 

    If you have a layout, and if you use a verification tool, why don't you create a netlist from the layout directly (possible with Calibre, i don't know with Assura) 

    Once you have the spice netlist with all the parameters and the connections, just do a cdl in or a spice in in virtuoso.

     

    Then you have a schematic =) 

    good luck.

     

    bruce

     

  • You can use dbCopyProp:

    dbCopyProp(
    g_object1
    g_object2
    )
    => t / nil

    Copies all the properties of one database object to another database object.
     
    Derek

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