kicad-developers team mailing list archive

["Brian F. G. Bidulock" <bidulock@xxxxxxxxxxx>]

Dick,

I don't see the need for this.  If one wants a track not connected to a
pin in the schematic, add a module to the board with a pad the same diameter
as the track thckness and assign any netname you want to the pad and then
connect your track to it.  I do this with two pads and a gap for laying
out differential pairs all the time in pcbnew.  No coding required.

--brian

On Thu, 09 Feb 2012, Dick Hollenbeck wrote:

> Janis
> 
> 1) This PATCH is going to take some time to process, it will require some discussion.  In
> any case it is not conformant to coding standards as is but it is not a large patch so I
> would not bother resubmitting it yet.
> 
> 2) you will have to join the mailing list to continue posting.
> 
> 
> > Hi!
> >
> > Been using KiCAD and encountered bug.
> >
> > Description of bug:
> > The issue is that tracks that are floating (not connected to any pad) lost netcodes
> > after reloading board file or doing DRC. This was important
> > because I use VIAs to improve impedance, thermal conductivity etc.
> >
> > Solution:
> > My attached patch fixes this.
> >
> > The principle is that all tracks created have netcode so in recalculation function
> > "PCB_BASE_FRAME::RecalculateAllTracksNetcode" I simply mark track netcode with flag bit
> > in MSB. Then one pass trough all tracks creating set of substitution pairs. This is done
> > finding tracks connected to pads and storing this tracks netcode together with pads
> > netcode as substitution pair in a set. Remember that track netcodes are flaged so no
> > chance of equal netcodes. 
> >
> > Then continue with track interconnection generation, as I understand this is not done
> > after file read.
> >
> > Last step, go trough all tracks again and change netcodes according to substitution set
> > data. Difference is that now even tracks not connected can have their netcode updated to
> > correct value. Netcodes that doesn't have substitution data are set to 0. This would be
> > case where some part is deleted and traces left with now non-existing netcode.
> >
> >
> > Janis Skujenieks
> >
> >
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-- 
Brian F. G. Bidulock    � The reasonable man adapts himself to the �
bidulock@xxxxxxxxxxx    � world; the unreasonable one persists in  �
http://www.openss7.org/ � trying  to adapt the  world  to himself. �
                        � Therefore  all  progress  depends on the �
                        � unreasonable man. -- George Bernard Shaw �