[time-nuts] Re: pps pulse timestamp device

[Magnus Danielson]

Juan,

If you can make it fit your budget, the TAPR TICC is a strongly 
recommended solution. Feed it a 10 MHz reference, then you can configure 
it to time-stamp two PPS pulses. I wrote code to integrate it to a 
larger system, and that worked and was relatively easy to do. I find 
that most issues I had was really due to me not having enough time to 
clean the pipe, not the device itself. The back end is an USB that you 
just hook up to your computer. On Linux is shows up at /dev/ttyACM0 and 
from there it is fairly simple. It is recommended you learn how to 
configure it on start-up. In a perfect world, I could drop a 
reconfiguration anytime, and I've heard to test code exist to support 
that, but I have not had the time to tinker around on it. As I said, I 
did not have the time to clean the pipe, but my takeaways is never the 
less that it is a great solution, compact and great performance.

Cheers,
Magnus

On 2024-02-11 13:37, juan--- via time-nuts wrote:
> Hi all,
>
> I am looking for a cheap device (e.g. Teansy, micropython board, etc) that would help me measure with ns resolution some pulses at one event per second rate (gps pps).
>
> It would need quite a stable clock such that any jitter would be attributable to the pulse signal.
>
> Any ideas what is the best way around this nowadays?
>
> Thanks,
> Juan.
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