Re: gEDA-user: Specifications

[ldoolitt@xxxxxxxxxxxxxxx]

On Wed, Jul 19, 2006 at 02:56:28PM -0700, Art Fore wrote:
> We only need about 18 inches X 18 inches and up to 24 layers. How about
> ground planes? Does it also handle split ground planes?

Heretic!  Ground planes are by definition not split!
Fortunately for you, PCB is agnostic on the subject.  :-)
Yes, it can handle split ground planes.

> What about the schematic capture, does it do hierarchial schematics?
> That is where, for example, you may have 32-channels of identical
> cicuitry and you do a schematic of one channel, then on the upper level,
> you use a symbol to represent that schematic 32 times.

I can't speak for gschem.  I use xcircuit, and it handles
this just fine (admittedly with a little help from perl).
But simple cross-probing between the schematic and layout
is beyond that lashup.  My approach to multichannel design
mandates that the part numbers are coded with channel number.
For example, all resistors for channel 1 have the form R1xx,
and all resistors of the form Rx01 serve the same purpose in
their respective channels.  Not doing this leads to madness.

> DxDatabook also interfaces to your corporate parts
> database and you can link a datasheet to the part so you can have the
> datasheet at the click of a mouse.

If your corporate parts database is publicly documented, we can
arrange to use it.  gEDA tools don't keep secrets.

    - Larry


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