Netlist including parameters

[ajin]

Hi,

I've confused with hspiceS netlists.
Please, help me.

I use 'pPar', passing parameters, but the extracted netlist is not my
favorite.

I expect a netlist like this.
----------------------------------------------------
..subckt INV in out param1=1 param2=2
............param1.........param2..........
..ends
----------------------------------------------------
But, the netlist is like this.
----------------------------------------------------
..subckt INV in out
.....1.......2......
..ends
----------------------------------------------------
How can I make netlist like the first one?

I don't have 'hspice' view, but 'hspiceS', is there any difference?
And I have another question.

I would like to extract netlist including paramters.
If I include variables in the schematic parameters, there are errors.
I wanna use '.param ' with hspice simulator, but I can't make netlists.

Thanks,
Ajin

 

[Andrew Beckett]

On 13 Nov 2006 18:10:10 -0800, "ajin" <wjin.lee@gmail.com> wrote:

Hi,

I've confused with hspiceS netlists.
Please, help me.

I use 'pPar', passing parameters, but the extracted netlist is not my
favorite.

I expect a netlist like this.
----------------------------------------------------
.subckt INV in out param1=1 param2=2
...........param1.........param2..........
.ends
----------------------------------------------------
But, the netlist is like this.
----------------------------------------------------
.subckt INV in out
....1.......2......
.ends
----------------------------------------------------
How can I make netlist like the first one?

I don't have 'hspice' view, but 'hspiceS', is there any difference?
And I have another question.

I would like to extract netlist including paramters.
If I include variables in the schematic parameters, there are errors.
I wanna use '.param ' with hspice simulator, but I can't make netlists.

Thanks,
Ajin

You really need to move to the newer hspiceD interface (which requires hspiceD
CDF information). There's a toolbox in CIW->Tools->Conversion Toolbox for
setting this up.

The older (obsolete, and now gone in IC610) hspiceS is a "socket" based
interface which assumes that the simulator can't do parameterisation itself,
and uses cdsSpice to do all expression evaluation. So the final netlist you
get is no longer parameterized.

Regards,

Andrew.
--
Andrew Beckett
Principal European Technology Leader
Cadence Design Systems, UK.