FreeLists / si-list / [SI-LIST] Re: Windows-based schematic editors

["Hargin, Bill" <bill_hargin@xxxxxxxxxxx>]

Hi Vadim:

> Can anyone recommend a Windows-based schematic editor
> that can netlist in HSPICE?
>=20
> -Vadim Heyfitch
> Altera Corp.=20

HyperLynx LineSim and BoardSim (with the right options
enabled/purchased) will write out a SPICE netlist, including HSPICE's W
Element.  I've included a data dump from the Help system just below my
signature.

Bill Hargin
Product Manager - HyperLynx
Mentor Graphics Corp.
425-497-5079 - Direct

----- Netlists Generated by the Writer -----

What the SPICE Writer Generates

The SPICE writer generates two files for every net or schematic on which
you run it:

A SPICE sub-circuit, containing the following elements:

All of the interconnect for the net(s) (modeled as SPICE transmission
lines)

Any passive components (resistors, capacitors, inductors) attached to
the interconnect

External nodes for the points on the net(s) at which IC pins are to be
connected (normally, SPICE IC models)

A top-level SPICE "test bench," the use of which is optional; it
contains:

An instantiation of the sub-circuit

Simple voltage-ramp + resistor "stand-in" models for the ICs attached to
the sub-circuit; the voltage ramp switches in a time equal to the IC's
slew time, and the resistance equals the IC's driving impedance

Other control statements that allow the sub-circuit to be simulated,
including probing of all of the sub-circuit's external nodes=20

If a coupled netlist (containing HSPICE "W" elements) is generated, a
series of .RLC files containing the electrical cross-section information
for each W element in the netlist

Two Types of Netlist Output, Uncoupled and Coupled
The files generated by the HyperLynx SPICE writer come in two "flavors",
depending on whether or not crosstalk is enabled in BoardSim/LineSim
when you generate the netlist:

Uncoupled, in which no coupling is modeled, and all transmission lines
are modeled with the standard SPICE lossless "T" element

Coupled, in which coupling is included and all coupled transmission
lines are modeled with the HSPICE coupled, lossy "W" element

Specifically, the choice between uncoupled and coupled output is made
automatically by the SPICE Writer, as follows:

If you are running BoardSim, and you have crosstalk enabled, coupled
output is generated; if crosstalk is disabled, uncoupled output is
generated

If you are running LineSim, and you have coupling anywhere in your
schematic, coupled output is generated; if there is no coupling in your
schematic, uncoupled output is generated

Coupled Netlists and the HyperLynx Field Solver
If you generate a coupled netlist, it includes HSPICE-compatible "W"
elements (see above). These require field solutions which result in
capacitance and inductance matrices that characterize each element's
coupling. The solutions are generated automatically by HyperLynx's field
solver, and output in a series of files with extension ".RLC."

You can correlate each W element to its .RLC file by looking in the
netlist at the "RLGCfile=3D" field in the W element line.=20

Resistance matrices are also output into the .RLC file. Only "diagonal"
DC resistances are included.

=20
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field

List FAQ wiki page is located at:
                http://si-list.org/wiki/wiki.pl?Si-List_FAQ

List technical documents are available at:
                http://www.si-list.org

List archives are viewable at:     
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu