[SI-LIST] Re: SPICE on the cheap
- From: "Scott McMorrow" <scott@xxxxxxxxxxxxx>
- To: arpad.muranyi@xxxxxxxxx
- Date: Mon, 14 Oct 2002 12:21:24 -0700
Arpad,
Unfortunately, Nspice is not free or cheap.
It is exceptionally good software, however. Like Craig, I would
recommend it to anyone who needs to performed mixed simulation with
s-parameters. The accuracy and speed are stunning.
regards,
scotgt
Muranyi, Arpad wrote:
>Is this free software, or inexpensive?
>Since that's what the original question was...
>
>Arpad Muranyi
>Intel Corporation
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
>-----Original Message-----
>From: Yu Liu [mailto:yu_liu@xxxxxxxxxxxxx]
>Sent: Monday, October 14, 2002 11:41 AM
>To: aldavis@xxxxxxxx
>Cc: si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] Re: SPICE on the cheap
>
>
>Al,
>
>You are right on that both H-SPICE and P-SPICE are clones of UCB=20
>Spice2/3. However, we have developed our own spice, called NSPICE, from=20
>scratch. NSPICE can handle much larger circuits, (has run over 1=20
>million devices/elements on a Linux box), and has the same accuracy as=20
>H-SPICE. It has a W-element equivalent coupled lossy transmission line=20
>model (with frequency dependent RLGC), it handles scattering-parameter=20
>networks, and it has BSIM3/BSIM4 device models built-in. (And yes, it=20
>also has the TXL/CPL line model from KSPICE). Take a look at=20
>www.apache-da.com/Products/nspice.htm for more detail about NSPICE.
>
>Regards,
>
>Y. Liu
>=3D=3D=3D=3D=3D=3D
>
>Al Davis wrote:
>
>
>
>>On Sunday 13 October 2002 06:13 pm, Bhupendra Kapoor wrote:
>>
>>
>>
>>>what is the difference between SPICE, P-SPICE and H-SPICE and
>>>now I read J-SPICE. ANY ONE please -feel free to
>>>explain-Regards to every body on the free lists.
>>>
>>>
>>>
>>SPICE refers to a simulator program from the University of=20
>>California at Berkeley, and released under BSD license as=20
>>free/open-source software.
>>
>>To be more specific ....
>>
>>Spice-2 is mostly the work of Larry Nagle, then a grad student=20
>>at Berkeley. It is in Fortran, and is the first one released=20
>>to the public. As I recall, it was around 1980, plus or minus=20
>>a few years.
>>
>>Spice-3 is a later work at Berkeley that rewrote it in C and=20
>>restructured it. It was released in the late 80's.
>>
>>The license basically lets you do anything you want with it,=20
>>provided that you give the appropriate credit to UCB. The=20
>>others are derivative works. Others have picked up the=20
>>original and made enhancements.
>>
>>H-SPICE and P-SPICE are commercial versions. They took the=20
>>original Berkeley code and added enhancements, and they sell it.
>>
>>Some others are free versions. Some come from university=20
>>research. Others are corporate or private efforts. Some are=20
>>open source. Some are closed source.
>>
>>What they all have in common is that they are all derived from=20
>>the Berkeley code.
>>
>>
>>
>
>
>
>
>
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--
Scott McMorrow
Teraspeed Consulting Group LLC
2926 SE Yamhill St.
Portland, OR 97214
(503) 239-5536
http://www.teraspeed.com
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