1.1.6 build fails on FC30

Hal Murray hmurray at megapathdsl.net
Wed Apr 15 22:55:59 UTC 2020

> So no error messages about gps/NMEA.

> NMEA(0)                                 .GPS.            0 l   15   64 377   0.0000   0.0000   0.0019

What's the line for that in your ntp.conf?  Any fudge lines?

What does stty say for the baud rate?
What sort of GPS device ?  What baud rate is it using?

Try stopping ntpd and running cat /dev/whatever
That should show some NMEA sentences.


The 377 reach shows that something is working but the rest of the line shows 
that it isn't.

The NMEA driver is strange in that it tries to merge both the NMEA and PPS.  I 
guess that's good if it works, but it makes debugging things like this 

I run with 2 separate servers.  Here is the chunk from my ntp.conf

server prefer path /dev/ttyAMA0  mode 0x010011
fudge flag1 0            # disable PPS
fudge time2 0.600        # Fixup offset
server                    # PPS signal, needs prefer
fudge flag2 0            # Rising edge

That turns into:
*NMEA(0)         .GPS.            0 l   31   64  377   0.0000  10.9381  27.6977
oPPS(0)          .PPS.            0 l   30   64  377   0.0000   0.0570   0.0004

These are my opinions.  I hate spam.

More information about the devel mailing list