Stats

  • Locked Locked
  • Replies 2
  • Subscribers 142
  • Views 13421
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

question about adding a property to y0 drawing

mctang

Hi All,

I would like to draw a polygon/rectangle over a region and attach the property "resistance" to this layer.  Could I attach the property to "y0-8" "drawing" ? I got a SKILL code from Cadence support site, which could display the properties of the layer when I select the polygon in the layout. However, I only see "OD" "drawing" in LSW but not "y0" "drawing". I could select "OD" drawing.   Is "y0" "drawing" selectable ?

cv=geGetEditCellView()
rec_id = dbCreateRect(cv list("y0" "drawing") list(-4.63:0.7 -1.2:3.51))

rec_id->resistance=0.5

Thanks,

ManChak

  • ManChak,

    Not sure which version you're using (looks like IC617), but the essence is that you need to edit the "valid layers" to control what appears in the palette. If a layer isn't marked as valid then it's not valid for drawing on - which is why it doesn't show up. It's the valid layers that controls this in all versions, it's just how you get to change that may vary.

    Anyway, use the right mouse button menu in the palette (e.g. just to the right of the bit where you have the Valid, Used, Routing checkboxes) and pick Edit Valid Layers. You'll then see a "v" (lowercase) and "m" column appear in the main palette and a bunch of layers in red (make sure you turn off the "Used" checkbox too otherwise you may not see it - although if you've created the shape with SKILL, it would be in the cellView so it may be OK). Any of the non-valid layers will be in red - you can turn on the "v" checkbox and then do RMB->Edit Valid Layers again to exit the mode where you're editing the valid layers. It should now show up in the normal palette (you can of course filter for "y0" when in the edit valid layers mode).

    Regards,

    Andrew

  • Hi Andrew,

    Thank you for your help. It works now. The foundry pdk set y0-y8 to invalid layers by default.

    ManChak

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.