[time-nuts] Linux PPS clues?

Ilia Platone info at iliaplatone.com
Thu Oct 20 02:15:39 EDT 2016

Hi all,
I need some clues on the Linux PPS subsystem.
I am trying to take some timestamps of events on a GPIO using an ARM 
SBC, and noticed that the kernel linux can be interfaced to a PPS 
signal, wanted to sync another GPIO to a GPS receiver for time 
reference. I need to know how much precise this system can be. How much 
resolution can I obtain with a cheap receiver (maximum quantization 
Formulas are well accepted.


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