On Sep 2, 2011, at 12:45 PM, Colin D Bennett <co...@gibibit.com> wrote:
> On Fri, 02 Sep 2011 10:18:20 -0500
> John Griessen <j...@ecosensory.com> wrote:
>
>> Does the category low end bother you?
>
> Well, I think low-end is not very specific in reality. Does gEDA
> really belong in the category of EAGLE, or is it much more powerful?
>
> Maybe the “low-end” attitude toward gEDA is based on the fact that pcb
> doesn't support important features for large and complex boards such as
>
> - trace length matching,
Important in high speed.
I recall a serpentine plugin for pcb.
+1 to bundling plugins with pcb sources......
> - constraints/routing styles defined at the net level,
Important for high speed and power applications
> - pushing/pulling PCB traces and better support for moving parts with
> traces routed,
Nifty, aids layout but often you can't shove those length matched sets
anyhow.....
> - ability to select a component on the PCB by clicking it in the
> schematic view,
Novice feature.... Layout engineers have paper schematics with notes taken on
them when they met with the EEs who drew the schematics.
> - back-annotation to schematic from the PCB editor.
Again, back annotation comes from yelling at the EE and telling them that they
can't break physics no mater how hard they try!
On the other hand for FPGAs and other high pin count devices I suspect that
this would be more welcome. Though I think that a tool that mapped the ports
and I/Os an stored them in a table. With an option to render to graphical
symbols would be better.
Nets in schematic assigned to layout placement. Then layout is assisted by
assignment tool, kinda like a reverse fanout tool. Then The table in the
design is updated. Then graphics and pinmap file get generated.
This would cut the iterative process from the desiring of large FPGA parts.
>
> Just a few things that sound important to me, a novice PCB designer.
What is really missing is the support contracts from the high end tools. We
need the equivalent of what RedHat is for Linux to be considered a high end
tool.
>
> Regards,
> Colin
>
>
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