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SKILL to modify layout parameter

40Ford

I have written SKILL functions to change or add parameters to a cellView. What I need to do now is grab the value of a parameter from a schematic and copy that value to the corresponding layout.

The parameter is called "connectivity" and I only want to change the value in cell "option". Yes, "option" is the cellName.

I know how to grab and instance and grab the property in SKILL but what I can't understand is how to know I'm getting the corresponding layout view for that instance.

 Any suggestions?

Parents

  •  Something to try is to search through the instHeaders instead of the instances. The instHeader defines the virtual memory master for the instances. It is much quicker becasue there are fewer instHeaders than instances.

    schIh = setof(  ih csv~>instHeaders ih~>cellName == "option" )
    schInsts = foreach( mapcan schIh schIh~>instances )

    ; Check the last line because I don't have Virtuoso access from home

    ; It should return a flattened list of the instances of the cell option

    layIh = setof( ih clv~>instHeaders ih~>cellName == "option" )
    layInsts = foreach( mapcan layIh layIh~>instances )

    I think mapcan is the right mappng function to use but read about them as they are very useful.

    It will greatly speed up your program as you are only sorting a few instHeaders.

     You can also make a DPL or a table which will map the schematic values using the schematic instance name. I would use a table:

    schParamValue = makeTable('values "" )

    ;; Add the pipe to the beginning of the name
    schParamValue[strcat( "|" inst~>name) ] =  dbSearchPropByName( inst "connectivity")~>value

    In the layout processing part you can then get the layout instance name and get the value from the  table directly:

    dbReplaceProp( inst "connectivity" 'string schParamValue[layoutInst~>name]

    Look up the table data structure for more info.

    Ted

     

Reply

  •  Something to try is to search through the instHeaders instead of the instances. The instHeader defines the virtual memory master for the instances. It is much quicker becasue there are fewer instHeaders than instances.

    schIh = setof(  ih csv~>instHeaders ih~>cellName == "option" )
    schInsts = foreach( mapcan schIh schIh~>instances )

    ; Check the last line because I don't have Virtuoso access from home

    ; It should return a flattened list of the instances of the cell option

    layIh = setof( ih clv~>instHeaders ih~>cellName == "option" )
    layInsts = foreach( mapcan layIh layIh~>instances )

    I think mapcan is the right mappng function to use but read about them as they are very useful.

    It will greatly speed up your program as you are only sorting a few instHeaders.

     You can also make a DPL or a table which will map the schematic values using the schematic instance name. I would use a table:

    schParamValue = makeTable('values "" )

    ;; Add the pipe to the beginning of the name
    schParamValue[strcat( "|" inst~>name) ] =  dbSearchPropByName( inst "connectivity")~>value

    In the layout processing part you can then get the layout instance name and get the value from the  table directly:

    dbReplaceProp( inst "connectivity" 'string schParamValue[layoutInst~>name]

    Look up the table data structure for more info.

    Ted

     

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