[SI-LIST] Re: Hyperlynx vs. Signal Explorer

  • From: agathon <hreidmarkailen@xxxxxxxxx>
  • To: si-list <si-list@xxxxxxxxxxxxx>
  • Date: Wed, 10 Jan 2007 15:43:09 -0800

Weston's is the best response, for which I didn't have the patience to issue
myself.
I'm willing to bet that those saying the tool "is ok" and such have limited
use or employing it a limited way, per Weston.
My postings' "anonymous" comments reflect my own experience.  That's why I
posted them.  I'm a cad user.
Again, make a realistic 'project', get the vendor to come in and work ALL
the way through it, with your prepared use and interface needs prepared
beforehand.
You will find what I offered to be true if it's a serious project.

On 1/10/07, Beal, Weston <weston.beal@xxxxxxxxx> wrote:
>
>
> This discussion comes up at least once a year and the answer is still
> the same. The best description I've seen was a couple of years ago. All
> EDA tools suck if you use them long enough. The deeper you get into it,
> the more bugs you find. Don't go too deep into it and you'll be happy in
> your ignorance :)X=20
>
> Now, the useful answer is that you need to look at features beyond
> functions. Every SI simulator simulates digital nets to some useful
> accuracy. Does it interface well to your PCB layout tool? Do you need it
> to? Does it output results in the way you want to use it? Does it
> support models of the effects that you are concerned with? Does it have
> the post-processing (waveform measurement) that you need? Is the cost
> within your budget? Can you, and do you want to, automate the tool for
> your work flow?
>
> So before you go looking too far for the right tool, you should figure
> out what is the job you need to do. If you just want to simulate a net
> once in a while to show pretty waveforms to your manager then get the
> cheapest tool you can find that makes pretty waveforms and you both will
> be happy for the immediate future. If you want a fully extensible,
> highly accurate, feature rich SI tool then get ready to spend some big
> money and time to get it set up in your environment. Thereafter you will
> find long-term joy. Most users want something in between. That's why
> there are so many SI tools on the market. Decide what is important to
> you and then the choice of tool will be fairly obvious.
>
> Regards,
> Weston
>
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
> On Behalf Of agathon
> Sent: Wednesday, January 10, 2007 12:41 PM
> To: si-list
> Subject: [SI-LIST] Re: Hyperlynx vs Signal Explorer
>
> I recently received a comment about just this from an acquaintance:
> ----
> "Short answer:  anyone trying to make full use of Cadence pcb si tools
> for
> interconnect sim and who, nevertheless, recommends it could make good
> use of
> counseling of some kind... or the receivers of that info could make good
> use
> of a polygraph test on the one recommending.   All this based on 1st
> hand
> experience over time."
>
> ----
> No info on Hyperlynx.
>
>
>
> On 1/9/07, cdomeny <craig.domeny@xxxxxxxx> wrote:
> >
> > We are considering adding a base-model (<GHz) SI tool to our PCB
> design
> > flow and have looked at Mentor Hyperlynx EXT and Cadence Orcad Sig
> > Explorer. In research, it seems the Cadence tool does not actually
> > perform "physical extraction", but is able to do a post-layout
> analysis
> > somehow. Can anyone help?
> >
> > Hyperlynx "seems" more mature, but cost ~2X. However, we are concerned
> > also about post-layout, and if Hyperlynx actually extracts the layout,
> > it seems like a more robust method.
> >
> > Any help, insight, or guidance is appreciated.
> >
> > Thanks, - Craig
> >
> > ------------------------------------------------------------------
> >
> >
>
>
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