[LinuxPPS] ntpd
Folkert van Heusden
folkert at vanheusden.com
Wed Aug 2 13:09:49 CEST 2006
oh hold on, i should've done this:
test/ppstest 1
that works:
keetweej:/usr/src/linuxpps-current# test/ppstest 1
found PPS source #1 "pps_8250_1" on "/dev/ttyS1"
but it doesn't give any events
On Wed, Aug 02, 2006 at 01:04:11PM +0200, Folkert van Heusden wrote:
> > > In the patch for ntpd I found that this code:
> > > [snip]
> > > in ntpd/refclock_nmea.c is not used at all when compiling! As this
> > > seems to be an important part of it I wonder what to do.
> > > configure switches:
> > > ./configure --disable-all-clocks --disable-parse-clocks --enable-linuxcaps --enable-NMEA --enable-LOCAL-CLOCK --enable-ATOM --enable-RAWDCF
> > Verify that the kernel tree you are compiling against is the one
> > patched with LinuxPPS. Maybe "configure" has a switch to define it.
>
> Found it: you need to enable HAVE_PPSAPI in config.h. Then you need to
> include some includefile in a couple of files to get it compile.
>
> But then:
> ntpd is running
> keetweej:/usr/src/linuxpps-current# ntpq -c pe
> keetweej:/usr/src/linuxpps-current# ntpq -c pe
> remote refid st t when poll reach delay offset jitter
> ==============================================================================
> +GENERIC(0) .DCFa. 0 l 16 64 3 0.000 4.703 0.291
> PPS(0) .PPS. 0 l - 64 0 0.000 0.000 0.001
>
> then i run ppstest:
> keetweej:/usr/src/linuxpps-current# test/ppstest
> found PPS source #0 "pps_8250_0" on "/dev/ttyS0"
>
> that is incorrect! the gps is connected to ttyS1
> kernel with latest patch from git
> i also tried with the ktimer client-module instead of ntpd, same result
>
>
> Folkert van Heusden
>
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Folkert van Heusden
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