kicad-developers team mailing list archive

[Dick Hollenbeck <dick@...>]

Frank,

> I have checked in a better svn version for project XML4PCB
> with a better layer assignments, $GENERAL, $SETUP and pin nets 
> but I don't get any ratsnet or any network in the dsn export. 
> Could you take a quick look to see what I am missing in the brd
> file...examples/txpr.brd is a partially routed, simple example.

Are you putting the Nets into the *.brd file? This is "class EQUIPOT", 
which lists all the nets by name and netcode. There should be a block 
of these in your *.brd file, one for each net. This list establishes an 
association table between a numeric "netcode" (a positive number > 0) 
and each net's name. Netcode 0 is reserved for a disconnected entity 
(track, pad, via).


EQUIPOTs to do this:

Netname Netcode
------------- -------------

Then each entity only has to include the numeric netcode.

See line 38 of pcbnew/class_track.h for example.

You can use a counter to assign netcodes, but start at 1, not zero.


> I also would propose we add a Net Name tag to the $TRACK
> specification...should be backward compatible, might help simplify 
> the ratsnet code and enable an export netlist from pcbnew.

See above.

Dick