Re: [gpsd-users] 1PPS not working with RPi 3 B+ and Stretch

[Gary E. Miller]

Yo Alan!

On Fri, 20 Jul 2018 20:34:59 -0700
Alan Scott <address@hidden> wrote:

> address@hidden:~ $ sudo su

Say what?  You should either "sudo" (please no), or "su -"

> address@hidden:/home/pi# ./gpsd -n /dev/ttyAMA0 /dev/pps0
> bash: ./gpsd: Is a directory

Then you are not in your gpsd directory.  So use the full path.

> address@hidden:/home/pi/gpsd# ./gpsd -n /dev/ttyAMA0 /dev/pps0

We'll assume that worked for now.

> address@hidden:/home/pi/gpsd# cgps
> bash: cgps: command not found

Then use the full path.

> address@hidden:/home/pi/gpsd# ./cgps
> cgps: caught signal 2

That is just wierd.  Bad install?  Bad libraries??

> address@hidden:/home/pi/gpsd# ntpshmmon
> bash: ntpshmmon: command not found

Bad path.  Use the full path, or fix your PATH.

> address@hidden:/home/pi/gpsd# ./ntpshmmon
> ntpshmmon version 1
> #      Name address@hidden Clock Real                 L Prec
> ^C

I assume you waited a while?  If so, not good.

> address@hidden:/home/pi/gpsd# df | fgrep shm
> tmpfs             474724       0    474724   0% /dev/shm

Good.

> address@hidden:/home/pi/gpsd# gpsd -nND 4 /dev/ttyS0 |& fgrep SHM 
> (nothing)

Very bad.  Are you sure no other gpsd was running?

> address@hidden:/home/pi/gpsd# gpsd -nND 4 /dev/ttyS0 |& fgrep PPS 
> (nothing)

Very bad.  Are you sure no other gpsd waa running?

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can’t measure it, you can’t improve it." - Lord Kelvin

pgpGqKpLQPAj8.pgp
Description: OpenPGP digital signature