* [9fans] /n/gps/time ?
@ 2007-04-06 20:22 Matthias Bauer
2007-04-06 20:41 ` Sape Mullender
0 siblings, 1 reply; 2+ messages in thread
From: Matthias Bauer @ 2007-04-06 20:22 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
Hi,
using gpsfs i get the correct position
from an NMEA gps device (Haicom 204); but
aux/timesync -G
resets the clock to 19:xx 31 December 1969.
The valid nanoseconds value in
/n/gps/time
is a 10-digit number. Converted to
seconds it's about 20 seconds after the
start of the epoch.
All other time values are zero.
Anyone had the same problem?
Best regards,
Matthias
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [9fans] /n/gps/time ?
2007-04-06 20:22 [9fans] /n/gps/time ? Matthias Bauer
@ 2007-04-06 20:41 ` Sape Mullender
0 siblings, 0 replies; 2+ messages in thread
From: Sape Mullender @ 2007-04-06 20:41 UTC (permalink / raw)
To: 9fans
> Hi,
> using gpsfs i get the correct position
> from an NMEA gps device (Haicom 204); but
> aux/timesync -G
> resets the clock to 19:xx 31 December 1969.
> The valid nanoseconds value in
> /n/gps/time
> is a 10-digit number. Converted to
> seconds it's about 20 seconds after the
> start of the epoch.
> All other time values are zero.
> Anyone had the same problem?
>
> Best regards,
>
> Matthias
Why not
cat /n/gps/time
This prints three numbers, the time in seconds since the epoch,
the GPS time in nanoseconds since the epoch and the local time
in nanoseconds since the epoch (the local time at which the GPS
time was received). The difference between the 2nd and 3rd number
measures how far your local clock is off.
Without running timesync, try to see if the numbers make sense.
Sape
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2007-04-06 20:41 ` Sape Mullender
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