Short testing (connect issue)

casper_d

Hi
I have 2 databases, each holding a metal/pad with labels.
I would like to match the labels in the two databases i.e. do the pads have the same label.

I get the 2 layouts by:

cell1= layout("@1").select("top")
cell2= layout("@2").select("top")

Adding the connectivity

pad_A = cell1.input(604,0)
pad_B = cell2.input(604,0)
pan_A_label=cell1.labels(125,0)
pan_B_label=cell2.labels(125,0)
connect(pad_A,pan_A_label)

This generates an error message:

'connect': The layout has multiple top cells in Layout::top_cell in Executable::execute

Any idea to fix

End goal is to mark metal/pads with different labels
Casper

Matthias

Hi Casper,

I assume that @1 or @2 have multiple top cells as the message says.

The problem is actually some kind of bug and should not happen as @1 or @2 already specify a certain cell. I have created a ticket for that: https://github.com/KLayout/klayout/issues/1594

However, even without this bug, you will still not be able to do that, as connectivity cannot be built across different layouts.

Matthias