kicad-developers team mailing list archive

[Strontium <strntydog@xxxxxxxxx>]

On 10/10/16 19:43, Tomasz Wlostowski wrote:
> On 10.10.2016 07:25, Strontium wrote:
> > On 09/10/16 23:11, Wayne Stambaugh wrote:
> > > On 10/8/2016 1:20 PM, Nox wrote:
> > >
> > > There is nothing here that has not been discussed before.  The reason
> > > that freely assigning nets to vias has not been implemented is that
> > > every implementation is a compromise.  If we allow random net naming of
> > > vias, all manner of bad things can happen that are completely out of the
> > > control of kicad.  Instead of your wtf moment being some tracks and vias
> > > with no associated net being ripped up when you import a new netlist,
> > > your wtf moment is a stack useless pcbs that you just spend money on.  I
> > Wayne, respectfully this is where I believe you have missed the point.
> > If a designer assigns a net to a via, then THEY are responsible for the
> > WTF moment.  IF Kicad rips up the nets the designer assigned to vias
> > then KICAD is responsible for the WTF moment.  In one case the designer
> > screwed up and in the other Kicad screwed the designer over.
> >
> > Its as simple as that.
> >
> > My original patch, posted many moons ago, fixed this problem neatly.  It
> > did not allow a user to assign arbitrary nets, but if you plonked a via
> > on a GND fill, it had a GND net, and that via would ALWAYS have a GND
> > net until you did something explicitly to change it.
> Don't shout man.... What if your board has more than two layers. For
> instance, there's a full VCC plane on one internal layer and another
> full GND plane on another internal layer? Which plane the via you place
> would belong to if vias were to take their nets from copper fills?
>
> Cheers,
> Tom
Hi Tom,

Its very simple, you place the via on the layer you want to stitch.  
Just like when you want to lay a track.

You want a GND Via, place it on the GND plane fill.  You want a VCC Via, 
place it on the VCC plane fill. You can do that now and it works fine.  
Try it.  The problem is you then run DRC and kicad will destroy your 
design.  So KiCad lets you do it with one hand, only to take it away 
with the other.  When it first happens to you its both jarring and 
disconcerting.

Sincere apologies if my post is seen as shouting, I just find the whole 
nonsense revolving around this issue very frustrating.

Steven/Stront