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Please help me! what is the cdl file format for assura to run lvs?

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cgikun

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Hi ,I have the schematic and layout in cadence ic5141 and we used the schematic and layout to run lvs with assura tools ,it is sucessul.But I want to select the netlist cdl file to run lvs with the layout used assura .But I do not know the cdl file format like res cap bjt diode.So please help me !Thanks a lot!
 

I want to select the netlist cdl file to run lvs with the layout used assura .But I do not know the cdl file format like res cap bjt diode.
I think you want the the LVS comparison between layout and a netlist? This is the normal method if you run an LVS between schematic and layout: from both views, first a (SPICE-like) netlist will be created, then the 2 netlists will be compared.

AFAIR it is possible to tell Assura directly which 2 netlists (via stating their full paths) should be compared.
 

Thanks Erikl,and we can run assura lvs by cadence shematic and virtuoso layout .That is the common way .But usuarally we used ads to run the sumilation and used the virtuoso to layout .So I want to know the assura lvs cdl file format ,I can export the netlist from the ads ,then I will modify it to run assura lvs used the netlist and the virtuoso layout!That is my expection!So thanks a lot!
 

Re: what is the cdl file format for assura to run lvs?

I want to know the assura lvs cdl file format

I already told you above: It's a SPICE-like format. If you want to know it more exactly, just study a netlist which has been produced from any schematic for an LVS comparison!
 

Ok,Thanks ,I know the cdl file is spice-like format .But when I run assura lvs with cdl file and gdsii,so the cdl file is like this:
.subckt BJT_AREA40 C B E
Q1 C B E bjt area=40
.ends BJT_AREA40

.subckt 1 P1 P2 P3
xQ1 _net1 _net2 _net3 BJT_AREA40
.subckt 1
.end
Then I run completely.
But That is a question about when we use different area device ,we will get different subckt.
So I want the cdl file like this :
.subckt BJT_AREA C B E
Q1 C B E bjt area=area $[area]
.ends BJT_AREA
.subckt 1 P1 P2 P3
xQ1 _net1 _net2 _net3 BJT_AREA area=40
xQ2 _net4 _net5 _net6 BJT_AREA area=60
.ends 1
.end
But I can not run the lvs.
when I modify it like this :
.subckt BJT_AREA40 C B E
Q1 C B E bjt area=40
.ends BJT_AREA
.subckt BJT_AREA60 C B E
Q1 C B E bjt area=60
.ends BJT_AREA
.subckt 1 P1 P2 P3
xQ1 _net1 _net2 _net3 BJT_AREA40
xQ2 _net4 _net5 _net6 BJT_AREA60
.ends 1
.end
It is Ok,so I want to know the right cdl format that I can modify the netlist exported for ads ,then I can run assura lvs with virtuoso layout.
So what is wrong for me ?
 

... It is Ok, so I want to know the right cdl format that I can modify the netlist exported for ads ,then I can run assura lvs with virtuoso layout. So what is wrong for me ?

If you already found the correct format yourself, what else do you want? Can't understand your question.
 

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