Re: gEDA-user: gschem: directly connecting two nets?

[Stephan Boettcher <boettcher@xxxxxxxxxxxxxxxxxx>]

Colin D Bennett <colin@xxxxxxxxxxx> writes:

> Sometimes I would like to directly connect two nets.  There are a
> number of different specific cases in which I would like to do this for
> simplicity in the schematic.  For instance, I might have an "input port"
> component (e.g., input-1.sym) on a connector pin with net "VLCD", and
> then somewhere else in the schematic want to show that "VLCD" is
> connected to "+3.3V".
>
> However, after some investigation as to why I wasn't getting the right
> rats in 'pcb' after a gsch2pcb import, I realized that connecting two
> nets in gschem (using a power symbol and/or an I/O port symbol
> connected with a net line) does not create that connection in the
> netlist!  I think the gnetlist drc did emit a warning due to this, but
> I did not understand the cause...
>
> Is there any correct way to show two nets are directly connected in a
> schematic?  e.g., connecting two I/O ports or two power symbols
> directly.

Hmm, yes.

You need to invent some 2-pin symbol with some special attributes, and
teach the pcb gnetlist backend(s) to interpret those attributes as a
net-unification bridge.  There should also be a convention how that net
should be named in the output.

-- 
Stephan



_______________________________________________
geda-user mailing list
geda-user@xxxxxxxxxxxxxx
http://www.seul.org/cgi-bin/mailman/listinfo/geda-user