copy and changing properties

I am converting designs from one pdk to another. I copied the
properties from old symbols to the new symbols in the cellview. However
there are few differences in some properties such as length width and
multiplier. I want to change them selectively. How do I do that.

Thanks,
Sriram

 

Below is some code I put together when I needed to convert 100+
schematics. This is just a subpart on how I handled getting the old
properties and then converting to the new ones. I would loop through
each instance on the schematic, based on type (cap, res, fet) I would
execute a sub procedure. The cap one is below. I would take all the
properties I wanted off the old symbol, sub it for the new symbol, and
then reset the properties accordingly. I am still trying to learn
skill and all the built in functions, so there might be a better
solution but perhaps this will help.

Tamara


procedure(TSSConvertCap(cellName inst objId)
; capture existing props
point=inst~>xy
foreach(prop cdfGetInstCDF(inst)~>parameters
propName=prop~>name
case( propName
("c" c=prop~>value)
("m" m=prop~>value)
) ; end case propName
) ; end foreach prop
; change the inst
masterid=dbOpenCellViewByType("techlibName" "newPdkCap" "symbol" ""
"r")
dbSetq(inst masterid master)
; new PDK cannot handle the value. Make a visable label so the
desiger knows
; that the value did not convert over and then they can make necessary
changes
if( (evalstring(c)>951.6e-15) then
schCreateNoteLabel(objId car(point):car(cdr(point)) "Old PDK C
value too high \nsetting to New Pdk Max" "centerCenter" "R0" "stick"
0.0625 "normalLabel")
) ; end if evalstring
geDeselectAllFig(objId)
geSelectFig(inst)
; taking advantage of the CDF callbacks so any other values out of
range
; will show up in the CIW and I can modify code as needed
; though to enable callbacks, values are set to a temp value
; and then to the final value
schHiObjectProperty()
schObjPropForm->calcParam->value = "C"
schObjPropForm->c->value="123f"
schObjPropForm->c->value=c
schObjPropForm->m->value="123"
schObjPropForm->m->value=m
hiFormApply(schObjPropForm)
hiFormCancel(schObjPropForm)
geDeselectFig(inst)
) ; end proc TSSConvertMim

 

Thanks Tamara,

Sriram