Standcell layout scaling problem

Hi Andrew,

I've tried your code by run load("abscale.il") in CIW, and returns T.

Then I open the layout I want to scale in CIW and use command cv = geGetEditCellView() to get the cell view ID, 227684396

Then I run: abScaleAllObjects 227684396 0.6

but return *Error* dbGetq: Object is not a db/dd object. - 227684396

So what's the problem? I have the layout .cdb file, this is a layout others done by hand.

Regards

Li

Hi Li,

You can't just pass a number to the function. You have to give it the database ID of the cellView. You can't cut and paste the database ID and re-use it - all you see is the "print representation" when displayed.

You'd have to use:

abScaleAllObjects(cv 0.6)

And cv contains the result of geGetEditCellView() as you typed it above.

Regards,

Andrew.

Thank you so much! Your code works! Great! Just a short question, now I have the scaled layout in 90nm, how can I export them to 65nm? I tried to copy the layout files to 65nm, but a lot of layers missing, thanks, I'm totally a new learner.

You'll probably need to change the layer number of the shapes to the layer number in the new process. So you'd need a bit of code which knew about the mapping of the old layer numbers to new layer numbers. You can access and modify the layer number for a shape using shapeId~>layerNum

Alternatively you could stream it out using the old layer map file, and stream in with the new. But that's a bit clunky.

Or you could contact Cadence about accessing Virtuoso Layout Migrate, which is a tool designed for this purpose (which will do a whole lot more than simplistic scaling of the data and layer translation; it can ensure that the resulting design is DRC clean and handle differing scaling on different layers).

Andrew.

Hi. I am looking for the script  abscale.il. I was not able to find it.  

Thanks, Sakib