From: Jim Freeman (email@example.com)
Date: Fri Jan 21 2000 - 14:35:33 PST
Will the apsim SI Spice take all device models that are used in
Hspice without modification.
Fred Balistreri wrote:
> Kim, this is getting pretty old and fustrating. All of the stuff
> plus more is avaliable in our spice. You actually evaluated it
> but obviously missed some important points. I know the weak
> points to our products, GUI and integration are not its strong
> points. And I fully understand why you went with Cadence.
> But to be frank as SI SPICE packages go we got the best
> implimentation and most of the feature you guys have been
> clamering about have been there since 1991. We are a small
> company and don't have the marketing might that Mentor or
> Cadence have but our technology still remains sound and we
> have many technical advantages that some guys of this reflector
> could use. So its getting hard to read this stuff and take it
> seriously. SPICE PLUS was circa 1986. The GUI is still unsurpassed
> for analog applications. But we have added lots of neat stuff in
> our SPICE some of which shows up as a wish list for Hspice on
> the SI reflector. And I fully understand why people use Hspice as
> well but come on guys WAKE UP!
> Best Regards,
> Kim Helliwell wrote:
>> That's pretty much what I thought you meant. I know of
>> a SPICE-like simulator that does most of that (in fact,
>> I worked on it in a former career).
>> Unfortunately it's not an SI-centric simulator (does
>> not have lossy couple transmission lines, for example)
>> and it's not directly available on the market. It's
>> not impossible to get hold of, but there's little current
>> support for it because it's an orphaned part of a larger
>> software package.
>> I don't know why other simulator suppliers haven't tried
>> to duplicate this sort of thing. As far as I'm aware,
>> HSPICE has nothing close to this, and I don't know about
>> PSPICE, but I don't think it does either. Cadence's Spectre
>> has HDL (in various flavors) but, while SpectreHDL is
>> very powerful, there's a fairly steep learning curve to
>> use it effectively. I don't think anyone comes close
>> to the AWB/SpicePlus implementation of behavioral sources
>> for power plus ease of use.
>> Pretty good for an essentially defunct product!
>> "C. Kumar" wrote:
>> > I meant the type mix is too elaborate. You need a
>> > generic voltage and a current source with the
>> > capability to add delay. For describing them very
>> > generally you will need to implement powerfull
>> > expressions and multidimensional tables and event
>> > trigger mechanism. S parameter and Laplace data types
>> > will be usefull pluses.
>> > The expressions should include logical 'if else' and
>> > derivatives.
>> > With this mix you may be able to completely obselate
>> > mega polynomial data typoes and other special key
>> > words like current controlled current source i.e F and
>> > H elements.
>> > With these sources in my kitty it is possible to build
>> > compact, accurate, elegant and powerful behavior
>> > models.
>> Kim Helliwell
>> Senior CAE Engineer
>> Acuson Corporation
>> Phone: 650 694 5030 FAX: 650 943 7260
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> Fred Balistreri
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