Le 6 févr. 2014 à 10:58, [email protected] a écrit :

<snipped>

> 
> Now, when i start the ntp service, i get below output for ntpq -p command:
> 
> 
>     remote           refid      st t when poll reach   delay   offset  jitter
> ==============================================================================
> *GPS_NMEA(0)     .GPS.            0 l    4   16  377    0.000  4526.86 1269.17
> 
> Problem: Though i have configured my ntp.conf file for nmea and 1pps both 
> (using flag1 1), i do not see any entry for PPS in ntpq -p command.
> if kernel has registered pps0 as pps source, why there is not PPS entry. I 
> have connected pps signal of 3.3v level to my dcd pin of ttyO1.

You might check that your pps signal is being detected
watch -n1 "cat /proc/interrupts"
> 
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