kicad-developers team mailing list archive

[Seth Hillbrand <seth@xxxxxxxxxxxxx>]

Am Mi., 29. Aug. 2018 um 11:04 Uhr schrieb Wayne Stambaugh <
stambaughw@xxxxxxxxx>:

> On 8/29/2018 12:22 PM, Simon Richter wrote:
> > Hi,
> >
> > On 28.08.2018 21:56, Anthony Tonizzo wrote:
> >
> >> Recently during the manual layout of a board with many
> >> differential pairs I noticed that there was no button to add
> >> a diff-pair the way there is a button for regular tracks.
> >> Rather, adding diff-pairs is currently accomplished using
> >> a menu entry.
> >
> > I dimly remember that diff-pair mode should be used automatically if the
> > net name ends in "_P", "_N", "+" or "-", as a substitute for a proper
> > "diff-pair" flag in the netlist.
> >
> >    Simon
> >
>
> I thought this was documented as well but a quick scan of the KiCad
> documentation turned up empty.  AFAIK, this behavior is still in play.
>
> Wayne
>
>
Does this mean we should be expressly dis-allowing single-track routing on
a differential pair?  The current behavior is that differential pair
routing is only allowed on the net pairs named as Simon mentioned but we do
not automatically use differential pair routing in those cases.

I think that this behavior is correct until we have designated differential
pairs in our file formats.

-Seth