Can't get GPS/PPS to work
halmurray at sonic.net
Thu May 19 01:34:40 UTC 2022
I don't see anything obviously wrong.
If I was chasing this, I would turn on clockstats. You may want to remove the
minpoll/maxpoll, to reduce logging clutter. That will also simplify things
clockstats will give you a line of counters every polling interval. I forget
what they mean, but the details are in the documentation. (and/or code)
On Linux, you can sanity check the PPS with:
One should count, the other should be stopped (ntpd turns it off).
Does the uBlox Neo-7M default to 9600 baud and NMEA?
Is ttyAMA0 tangled up with Bluetooth on the Pi 4? (I forget how to kill Bluetooth.)
These are my opinions. I hate spam.
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