[time-nuts] Soekris without a GPS receiver.
michael.cook at sfr.fr
Sun Dec 28 01:05:10 EST 2014
I have had a look at the NTPns package and I don’t think that you will be able do what you want without something naming the seconds. As you have GPSDO’s to give you UTC aligned seconds you may be able to use the voice time service TIM to help you manually set the system clock to the nearest sec and then just have the 1PPS on gpio to get align the seconds to UTC. I have done this and it works ok. However, you won’t get the upcoming leap second adjustment (my bet is on Jun 30 next year, but it could be pushed out to Dec31 ). If you are not using snmp, you will not be able to do monitoring either.
I would be inclined to use NTP rather than NTPns as per <http://www.febo.com/pages/soekris>. I know that the 4501 has only 128Mb , but that is easily enough.
> Le 27 déc. 2014 à 10:56, David J Taylor <david-taylor at blueyonder.co.uk> a écrit :
> I have a Soekris 4501 running with NanoBSD and have got as far as adding the PPS/DCD/GPIO modifications to the hardware. NTPns itself is working, and the red LED is flashing as expected.
> I would now like to get NTPns working with that more precise timing which is available, but as I don't have an Oncore or a DCF77 receiver I am stuck. Is it possible to use just the PPS/DCD line on its own for the fraction of the seconds, or would I need one or other of those receivers to make it work? If it can be made to work, what are suitable configuration commands?
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