hierchical LVS

Hi!

Last week I asked if someone could help me to do a LVS in order to
check just the present layers, but not the previous ones. The answer was
that
I had to activate "macro-cell" in the extract options. I have done that,
however it does not work.

My situation is that I have to check the connections between a layout in
full-custom and a layout synthesized in Silicon Ensemble. For that purpose I
have created a symbol from the layout (layout from SE) and a symbol from
schematics (full-custom).

The error that appears on the screen is the following one:

"Cannot find switch master cell I1 in cell view (middle_molecule schematic)
from viewlist: "auLvs schematic ""

I1 refers to the layout synthesized in Silicon Ensemble.

Many thanks.

Moisés Paniagua
Technical University of Catalonia

 

Hi Moisés,

From what you say, your problem is related to netlisting.
When netlisting, the netlister searches for views in the
"switch view list" ("auLvs schematic" in your case) until
it finds a view which is in the "stop view list" (probably "auLvs"
in your case).

From what I see I can also guess that you are using Diva
Verification. Diva uses the SI netlister which is configured
through a .simrc file in your working or home directory.
you have to edit that file and have something like

lvsSchematicViewList = '( "auLvs" "schematic" "symbol" )
lvsLayoutViewList = '( "auLvs" "extracted" "schematic" "symbol")
lvsSchematicStopList = '( "auLvs" "symbol")
lvsLayoutStopList = '( "auLvs" "symbol")

so that the netlister stops at the symbol view and does
not try to go further. try it, hope it works,

Stéphane

NB: I think you can also use a config view.

 

Thanks Stéphane,

You were right! This was the real problem!

Thanks a lot.

Moisés