Re: gEDA-user: Tools for timing diagrams for digital signals

[steve@spiketech.com]

>-- Original Message --
>Date: Sat, 15 Feb 2003 08:15:52 +0000 (GMT)
>From: Andrew Bardsley <bardslea@cs.man.ac.uk>
>To: geda-user@seul.org
>Subject: Re: gEDA-user: Tools for timing diagrams for digital signals
>Reply-To: geda-user@seul.org
>
>
>On Fri, 14 Feb 2003, Steve Wilson wrote:
>
>> >Actually, from a GTKWave point of view, being able to annotate with
>> >causal-relationship arrows (either by hand or from a textual/graphical
>
>> I see two different applications here - one of which already has some

>> support, the other which is more along the lines similar to the product
>
>> "Timing Designer."  We can already add labels and comments to our traces
>
Andrew,

I don't expect you to go off and write it - I'm just
trying to define what the other tool would be used for
as a point of discussion of the differences.

Again - the free-hand creation of the timing diagram itself
is a more interesting tool because it has a more general
application. I already understand that you wouldn't
personally use such a tool.

Annotation of diagrams in GTKWave would have some
utility for documentation after the fact - while I
would imagine you could use the other tool before the
fact.  The "TimingDesigner" tool can actually be
used to cut test benches that generate the waveforms
that are drawn as one example of tieing to useful
testing needs.

Regards,

Steve Wilson

Thats all.

Regards,

Steve Wilson


>Actually, I was thinking that the annotation could be useful for pointing
>out causal relationships on real simulation output so the viewer can be
>made to chase signals based on their causal relationships.  You could use
>an STG of a circuit or a handshake channel as the input format to such
>an annotator.  As for drawing spec. diagrams, well, that wasn't
>specifically what I had in mind.  Neither really was hand annotation.
>
>- Andrew
>    __________________
>___/Dr Andrew Bardsley\_________________________________________
>University of Manchester Dept. of Computer Science  Amulet Group
>Research Associate bardsleyATcs.man.ac.uk  Tel: +44 161 275 6844
>Snail: Room IT302, Man. Uni., Oxford Rd, Manchester, M13 9PL, UK
>