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Unable to create device cell that uses a 2-level deep device cell

Question asked by chenkk on Dec 6, 2014
Latest reply on Mar 19, 2015 by chenkk

I am using Pyxis Layout Basic  (v10.4_0.0).


I have created 2 device cells :

  • "dev_A0", which draws a rectangle
  • "dev_A1", which makes use of dev_A0



When I create device cell "dev_A2", which makes use of dev_A1, I get an error msg from the $copy function :

"Error : $copy returned error status at line ..."

"Error : Invalid layout relative object ID specified ..."


If I replace dev_A1 by dev_A0, there's no error msg.

In both cases, I am able to get the database ID of the secondary device cell with $get_new_object_handles()[0].

So I am puzzled why the $copy() function failed.


Q. Is there a solution for this problem ?


Thank you.



Debug material

I have reduced the problem as much as possible and zipped up the project :  ABC.tar.gz   (10 KB)


In the $ABC/userware/ample/ic folder are :

  • device generator files for dev_A0, dev_A1, dev_A2
  • a makedevice ample file to convert the above to device cells
  • in the "A2.ample" device generator, the "option" variable (line 26) controls which secondary device cell to call
  • option = 0 calls dev_A0
  • option = 1 calls dev_A1