kicad-developers team mailing list archive

["Frank Bennett" <bennett78@...>]

--- In kicad-devel@xxxxxxxxxxxxxxx, Dick Hollenbeck <dick@...> wrote:
>
> Frank Bennett wrote:
> > --- In kicad-devel@xxxxxxxxxxxxxxx, Dick Hollenbeck <dick@> wrote:
> >   
> >> 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.
> >>     
> >
> > Yes, I did this, specified the NumNets and put the numeric reference
> > in each $PAD specification for each $MODULE...I don't see what else 
> > might be missing!
> >
> > $EQUIPOT
> > Na 5 "GROUND"
> > St ~
> > Na 4 "VIN"
> > St ~
> > Na 3 "IN"
> > St ~
> > Na 2 "DEF0_1"
> > St ~
> > Na 1 "V"
> > St ~
> > $EndEQUIPOT
> >
> > Off hand do you know what "ST ~" means? (not in the filesformat doc)
> >
> > thanks,
> > Frank
> >   
> 
> Facetiously, it must stand for "spare text" (S t). See line 126 of 
> pcbnew/class_equipot.cpp where it is written, and lines 90-111
where is 
> if faithfully ignored upon reading back in.
> 
> BTW, unless your email has a bug, then your problem is the missing
> 
> $EndEQUIPOT
> 
> 
> required to terminate EACH equipot.

Yes, I guess I was too close to it...that change
and putting "" around the $PAD netname fixed it. The checked
in svn code now produce files that look correct! The
pulldown "Misc/list nets" also works after the change. Now
I can give Specctra a try (if I unroute some stuff).

thanks,
Frank

> 
> This is confirmed by close inspection of any good board file, and by 
> looking at line 92 of class_equipot.cpp.
Ah and one can also force the whole net to a width (missing in 
fileformat doc)
> 
> 
> Use the source Luke, use the source.
Just learning to navigate, not up to wrap speed yet!
> 
> 
> Dick
>