On Thu, Jun 13, 2024 at 08:22:03PM +0000, Sviatoslav Feshchenko wrote:
> - Is the 1PPS signal buffered if "low_latency" is NOT set?

I don't think it is. It should trigger the interrupt immediately.

> - Is it necessary to configure the serial port for "low_latency" if 1PPS 
> signal is available on the DCD pin, when the goal is to maximize the accuracy 
> of the 1PPS signal?
> 

For PPS it shouldn't matter. Easy to verify. Plot the raw offset from
the refclocks log, switch the low_latency flag, and see if there are
any jumps or changes in stability.

-- 
Miroslav Lichvar


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