[time-nuts] Beaglebone NTP server

[Neil Schroeder]

Graham make sure you read up on dtb and fdt. Many if not most distros don't
have what you might call a default.

On Tuesday, December 9, 2014, Graham / KE9H <ke9h.graham at gmail.com> wrote:

> Dan: Thanks. I don't know where you were quoting from, but it was the
> answer I needed.
>
> Paul: I found BB-BONE-GPS-00A0.dts, so I will start editing/hacking from
> there.
> I plan to run under Debian 7.7 or 8-Testing.
>
> Thanks,
> --- Graham
>
> ==
>
> On Tue, Dec 9, 2014 at 5:33 PM, Paul <tic-toc at bodosom.net <javascript:;>>
> wrote:
>
> > On Tue, Dec 9, 2014 at 12:59 PM, Graham / KE9H <ke9h.graham at gmail.com
> <javascript:;>>
> > wrote:
> >
> > > I guess I am asking if the kernel "pps-gpio" has a specific preferred
> > pin,
> > > or whether it can be mapped to any available gpio pin.
> > >
> >
> > The provided-with-stock-dtb pin is: <0x40> which is P9 pin 15.
> > I use the only "free" pin on P8 or P9: <0x7c> which is P8 pin 26
> >
> > There are various maps/charts/lists around with the pins.  Just decompile
> > /lib/firmware/BB-BONE-GPS-00A0.dtbo and fiddle if you want a different
> > pin.  The Debian relases come with dtc, I don't know about Angstrom.
> >
> > e.g.
> > <
> http://www.embedded-things.com/bbb/beaglebone-black-pin-mux-spreadsheet/>
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