r8 - 2006-01-26 - 03:12:10 - SteveKosteckeYou are here: NTP >  Dev Web > ConfiguringNTP > ConfiguringRefclocks > ConfiguringJupiterRefclocks > JupiterRefclocks
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Jupiter Refclocks - Development

Development issues concerning Jupiter Refclocks. See ConfiguringJupiterRefclocks for documentaion.


Editing the code to change hardpps is lame. Why not do it like refclock_atom.c or refclock_nmea.c, for example?

-- HarlanStenn - 07 Sep 2004


The jupiter refclock is alleged to require:

  • inline
  • struct timespec
  • timepps.h or sys/timepps.h

Which of these does linux not provide, yet the jupiter refclock will work without it?

-- HarlanStenn - 07 Sep 2004

With ntp-stable-4.2.0a-20040617

checking for inline... inline
checking for struct timespec... yes
checking timepps.h usability... no
checking timepps.h presence... no
checking for timepps.h... no
checking sys/timepps.h usability... yes
checking sys/timepps.h presence... yes
checking for sys/timepps.h... yes

I do not quite understand what you mean. Seems that at least 2.4.21-NANO supplies all three.

-- BjornGabrielsson - 05 Oct 2004

OK, then why does ConfiguringJupiterRefclocks say that the jupiter refclock does not build on linux by default?

If the above condition is met, it will be.

On my Linux 2.4.20 with PPSkit patch on a Redhat 9 system the JUPITER refclock compiles in ntp-4.2.0 by default.

Attached is a patch for refclock_jupiter.c to enable hardpps using flag4 ie adding 'flag4 1' to the server line will enable hardpps

-- IanC - 06 Mar 2005

Please use https://bugzilla.ntp.org and "attach" patches there - one cannot tell if (or when) the refclock maintainer will see anything posted here.

-- HarlanStenn - 13 Apr 2005

Topic attachments
I Attachment Action Size Date Who Comment
elsepatch jupiter.c.patch manage 1.7 K 2005-03-06 - 08:41 IanC patch for ntp-4.2.0 refclock_jupiter.c for hardpps
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Dev.JupiterRefclocks moved from Support.ConfiguringJupiterRefclocksDev on 2004-10-05 - 19:28 by SteveKostecke - put it back
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