| [chrony-users] Chrony setup on Raspberry Pi with GPS PPS |
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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: [chrony-users] Chrony setup on Raspberry Pi with GPS PPS
- From: Deven Hickingbotham <devenh@xxxxxxxxxxx>
- Date: Tue, 6 Oct 2015 08:07:15 -0700
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I'm looking for guidance on installing Chrony on a Raspberry Pi running
Raspbian. I have the Ultimate GPS Hat installed that provides PPS on
pin 4. I will have only intermittent internet connections, so the PPS
should be the primary time source. I want the time
adjustment/correction to be immediate after boot up. I don't want a
smooth/gradual correction.
Couple of newbie questions (in addition to any general guidance):
1. Does Chrony replace NTP? I assume so, but I haven't found this
explicitly stated. If so, instructions on how to disable NTP autostart
and enabling Chrony autostart would be helpful.
2. Does PPS support require any special instructions when compiling
Chrony? I've seen references to timepps.h. Is this file included with
the Chrony source? If not, where can it be found?
3. Examples of chrony.conf with PPS support?
4. After installation, what commands can be run to confirm that PPS is
enabled?
Thanks,
Deven
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