[time-nuts] NTP/PTP to SMPTE

Pete Lancashire pete at petelancashire.com
Wed Jul 4 10:27:36 EDT 2018


I look at all these little projects from two little boards beaglebone black
or the onion 2. I know the beaglebone black is not as cheap but me and how
much is your time worth ? Anyways the clean design one good day. As a home
project easy but as someone else said validation for this guy  200 hours.
With another hundred hours of documentation

On Tue, Jul 3, 2018, 9:41 PM Magnus Danielson <magnus at rubidium.dyndns.org>
wrote:

> Hi,
>
> On 07/04/2018 05:19 AM, Ryan Stasel wrote:
> > Hi All,
> >
> > I see a couple hits in google for this being discussed before, but
> they’re being shown as not found on febo.com<http://febo.com>. =/
> >
> > I’m curious if anyone has done work on getting something like a
> raspberry pi, Arduino, etc running ntp or ptp (possibly sync’d with a 1PPS
> signal) and outputting SMTPE over audio, or some GPIO pins. I have a studio
> clock (Leitch 5225) that can be sync’d over SMPTE (or EBU). I will admit
> I’m still trying to digest all of this, but this seems like it should be
> possible.
> >
> > Basically, I’m trying to make build a DIY master clock similar to one of
> these: https://www.masterclock.com/products/time-code-generators/gps500
> >
> > Thanks!
>
> OK, it is not too hard to code it up. I did it for IRIG-B, and it's
> possible to do for SMPTE 12M LTC code too. Validating it is however
> something that needs care.
>
> Cheers,
> Magnus
>
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