Re: gEDA-user: Specifications

[DJ Delorie <dj@xxxxxxxxxxx>]

> 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?

Yup, what you do is draw the separate polygons, one for each half.
They can overlap if you want, or use traces to connect them.

> 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've got a project with eight I/O filters, I plan on using a perl
script (or refdes_renum if it does what I want) to simple create
sheets 2..N from sheet 1.

Of course, someone might say that gschem supports heirarchies now, I
know they've been discussed in the past.

> The purpose of a DxDatabook application is to prevent "Heavy"
> symbols.  . . .

Again, read the heavy vs light debate.  I've proposed something like
what you describe, but nobody has volunteered to write it.  Maybe you
could?

There's also gattrib, which brings up your schematic's symbols in a
spreadsheet and lets you edit all the attributes at once.

> I have a 64-bit system, a desktop, but my laptop is a 32-bit.

Either works.

> Cross-probing, if you don't know, is where you have both the schematic
> and layout open . . .

Dan is working on this.  PCB has the socket support, it's a matter of
stitching the GUI bits together.


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