[SI-LIST] Re: package SSN model accuracy requirements

So far I only heard ICX can accept AMS model.
And what is the percentage of people are actually
using ICX to design their boards?

guys, if you need accurate model in whatever aspect,
push your IC vendors until you get it, if IBIS isn't
enough, try other modeling approach, if you tools is
no longer suitable for high speed design, spend some
money for tools. Isn't this what we are doing
everyday?

In the end, one need to deliver the product that
works.

P.S: I  mean no offend to the people on the LIST.
Happy Modeling :-)...

Yafei
--- Scott McMorrow <scott@xxxxxxxxxxxxx> wrote:

> Yafei
> Mentor ICX,  has full VHDL-AMS and ELDO Spice
> support, which is why you 
> see Gary Pratt discussing AMS on the list.
> 
> regards,
> 
> scott
> 
> Scott McMorrow
> Teraspeed Consulting Group LLC
> 121 North River Drive
> Narragansett, RI 02882
> (401) 284-1827 Business
> (401) 284-1840 Fax
> 
> http://www.teraspeed.com
> 
> Teraspeed® is the registered service mark of
> Teraspeed Consulting Group LLC
> 
> 
> 
> Yafei Bi wrote:
> 
> >Steve,
> >
> >NOW I understand the problem of AMS acceptance:
> board
> >designer doesn't have access to the simulator which
> >has AMS capability. Tools used by IC designers do.
> >
> >The AMS capability is available for IC Design Tools
> >from Cadance and Mentor for some time now.
> >
> >IC designers have been using it for PLL locking
> >simulation or other timing consuming simulation
> task.
> >There are many success stories in these regard to
> >discuss accuracy of AMS etc.
> >
> >Please tell me as a board designer, which simulator
> >has the capability of accepting AMS model?
> >
> >As for AMS language, here is an example of your own
> >resistor model, this is all it takes to have your
> own
> >model:
> >
> >===========================
> >module resistor (a,b);
> >inout a, b;
> >electrical a,b;
> >parameter resistance;
> >
> >analog begin
> >I(a,b) <+ V(a,b)/resistance
> >end
> >endmodule
> >==========================
> >
> >You can even instantiate Spice primitive inside the
> >module to creat your own "macormodel"
> >
> >Happy Modeling
> >
> >Yafei
> >--- steve weir <weirsi@xxxxxxxxxx> wrote:
> >
> >  
> >
> >>Arpad, personally I really like the possibilities
> >>that AMS offer.  I am 
> >>very concerned on how as a community we turn
> >>potential into reality.  Our 
> >>industry is littered with the bones of different
> >>languages and methods that 
> >>were excellent concepts but failed in the market,
> >>while technically lesser 
> >>solutions prevailed.
> >>
> >>If we poll and find out that AMS is sorely lacking
> >>in the support that it 
> >>needs to succeed, then I think there are only
> three
> >>viable courses of action:
> >>
> >>1) "Educate", ( some might say lobby ) to get
> >>sufficient market support to 
> >>make this direction viable
> >>2) Force by edict such as gov't.  Generally that
> >>kind of thing is a bad idea.
> >>3) Abandon for a path that can succeed in the
> >>market.
> >>
> >>Regards,
> >>
> >>
> >>Steve.
> >>At 02:59 PM 3/24/2005 -0800, Muranyi, Arpad wrote:
> >>    
> >>
> >>>Steve,
> >>>
> >>>Thank you for your excellent suggestion.  I agree
> >>>      
> >>>
> >>with them completely.
> >>    
> >>
> >>>I hope that I don't come across as being blindly
> >>>      
> >>>
> >>biased towards AMS.
> >>    
> >>
> >>>What I write is because of the merits and
> >>>      
> >>>
> >>capabilities of these
> >>    
> >>
> >>>languages and the kinds of things I would like to
> >>>      
> >>>
> >>be able to write
> >>    
> >>
> >>>models for.
> >>>
> >>>However, if and when we do these polls we need to
> >>>      
> >>>
> >>be careful about
> >>    
> >>
> >>>how we do it!  If you ask someone the question
> >>>      
> >>>
> >>which one they would
> >>    
> >>
> >>>prefer, SPICE or AMS, they better know the
> >>>      
> >>>
> >>capabilities and/or
> >>    
> >>
> >>>limitations of both.  Otherwise they may end up
> >>>      
> >>>
> >>choosing the one
> >>    
> >>
> >>>they know, and not the one that is better than
> the
> >>>      
> >>>
> >>other...  Of
> >>    
> >>
> >>>course, a definition for the word better may also
> >>>      
> >>>
> >>be useful when
> >>    
> >>
> >>>trying to make such decisions.  Something that is
> >>>      
> >>>
> >>better for me
> >>    
> >>
> >>>may not be good for you.  I may like the freedom
> in
> >>>      
> >>>
> >>AMS because
> >>    
> >>
> >>>it has a programming language style, others may
> >>>      
> >>>
> >>like canned solutions.
> >>    
> >>
> >>>Who will decide what is good for the industry in
> >>>      
> >>>
> >>general?
> >>    
> >>
> >>>Arpad
> >>>      
> >>>
>
>>-----------------------------------------------------------------------
> >>    
> >>
> >>>-----Original Message-----
> >>>From: steve weir [mailto:weirsi@xxxxxxxxxx]
> >>>Sent: Thursday, March 24, 2005 2:42 PM
> 
=== message truncated ===

------------------------------------------------------------------
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

Other related posts: