[ntp:questions] NTP not syncing

David Taylor david-taylor at blueyonder.co.uk.invalid
Fri Dec 6 15:48:44 UTC 2013

On 06/12/2013 09:42, Jos van de Ven wrote:
> http://www.synclab.org/?tag=raspberry%20pi
> Quote:
> The Raspberry Pi does not ship with a TSC or HPET counter to use as clocksource. Instead it relies on the STC that raspbian presents as a clocksource. Based on the source code, "STC: a free running counter that increments at the rate of 1MHz".

Thanks for that pointer, Jos.  It's easy to add a GPS/PPS board to the 
RPi, and then you get performance (as reported by NTP) such as seen on 
the five RPi cards here:


Web: http://www.satsignal.eu

More information about the questions mailing list