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How to use skill to change PCell parameter like using Edit Instance Properties to change parameter ?

Hi All,

When using Pcell , press q to use "Edit Instance Properties" to change parameter (e.g. length) ,

in cdf , it has callback , everything is right according to callback function . Different length has it different result in Pcell.

Now I have many Pcells needs to changed parameter - length (from 2um to 4um) by "Edit Instance Properties" ,

Is there any approach to do that ? (Not manual use "Edit Instance Properties" to change each Pcell's parameter ?

After changing parameter - length , its result should same as using "Edit Instance Properties" .

Thank you.

Charley

StefanSL over 14 years ago

Hi Charley,
what about the following piece of code:
tc=geGetEditCellView()
foreach(ti tc~>instances if(ti~>PCLENGTH then ti~>PCLENGTH = 4))
i check for existence of the parameter PCLENGTH to avoid to add this as property to
other cells; perhaps you need to modify the if-condition to be sure only to modify the
correct set of cells.
hope this helps
regards
Stefan
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Charley Chen over 14 years ago

Hi Stefan ,
Does it do any CDF callback if length has callback function ?
Thank you,
Charley
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StefanSL over 14 years ago

Hi Charley,
i'm not really sure about that, but the cdfuser-manual states
"Callbacks are triggered whenever a change is made to the parameter value, even if the
change is caused by loading a default value."
This sounds good, but you should check if this applies to your special application too.
Kind regards
Stefan
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Andrew Beckett over 14 years ago
Take a look at solution 11018344 - this has code to call CDF callbacks procedurally.
Regards,
Andrew.
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Charley Chen over 14 years ago

Andrew,

Thank you, but the link is not exist.

Charley
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Austin CAD Guy over 14 years ago

CDF callbacks are only executed during the interactive editing of the parameters through the Edit Property form or the Edit Property Assistant (IC6.1). If you are changing them programmatically, you have to execute the callback. Here is a way to do it:
;; Get the instance
inst = car(selectedSet())
;; Instance CDF
cdfgData = cdfGetInstCDF(inst)
inst->length = newLength
param = cdfFindParamByName( cdfgData "length")
when(param->callback
evalstring(param->callback)
)
Ted (this line is not part of the code)
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StefanSL over 14 years ago

Hi Charley,
there's a small (but nevertheless vital) error in Andrews link:
http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNu mber=11018344
remove the space within "Nu mber", then it works fine...
regards, have a nice weekend
Stefan
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Andrew Beckett over 14 years ago

Apologies - cut and paste error. Did it in too much of a hurry - thanks Stefan for fixing it!
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Charley Chen over 14 years ago

Ted,
It works , thank you.
Charley
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