[time-nuts] NTP/PTP to SMPTE

[Magnus Danielson]

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