Re: gEDA-user: Fwd: [Open-graphics] How to get more eyes on OGD1 schematic?

[Eric Blossom <eb@xxxxxxxxxx>]

On Wed, Mar 15, 2006 at 09:01:27AM +1100, John Sheahan wrote:
> Xtian Xultz wrote:
> >Thats the first time I had seen a part in a "U" shape... thats very ugly 
> >to me... 
> >And a lot of capacitors, all in paralell, the ICs withou power pins... how 
> >can somebody deffend that kind of design style? (I am not saying the 
> >schematic is bad, I just dislike a lot that style, but a lot of people 
> >thinks thats the best design style, which I cant understand).
> 
> Xtian
> when you come up with a schematic style that looks good for any chip in 
> a package with lots of balls (here a 672 fpga with its IO banking does 
> not help)  _please_ share it with us.
> 
> Schematics are great for something that fits on a page. Preferably a 
> small page.     Bigger than that, I think HDL wins.      And there is 
> lots of inertia.
> 
> And parts of these things , for example the power supplies, still look 
> best (to my eye anyway) as a schematic.
> john

In the past I've built hybrid systems where we used traditional
schematics for the analog part of a system, and then a lisp based HDL
for the digital stuff.  We created "worm holes" between the two
domains, and glued it all together with the netlister.  Worked out
pretty well, except for techs who didn't grok the HDL.  You specified
what kind of bypassing you wanted on your power pins (cap vs bead and
cap), and all of that was automatically generated.

Eric