No GPS c++ example Ublox test not passed

Navio / Edge Hardware
1

Hi guys,

Seems my gps is not working…

I have updated image and build APM on the pi APMrover2 works but no GPS

When I test the GPS as per example on the site I get:

pi@navio ~/Navio/C++/Examples/GPS $ make gps
g++ -I …/… -c -Wall gps.cpp
g++ -I …/… -c -Wall …/…/Navio/Ublox.cpp
g++ gps.o Ublox.o -o gps
rm -rf *.o
pi@navio ~/Navio/C++/Examples/GPS $ ./gps
Ublox test not passed
Abort program!

Any thoughts?

hugo

2

@hugokoopmans

Can you please make:

uname -a

And copypaste here.

3

pi@navio ~/Navio/Python/GPS $ uname -a
Linux navio 3.12.26-rt40+ #1 PREEMPT RT Fri Sep 19 23:59:27 MSK 2014 armv6l GNU/Linux

4

the python example gives:
pi@navio ~/Navio/Python/GPS $ python u-blox.py
Traceback (most recent call last):
File “u-blox.py”, line 3, in
import spidev
ImportError: No module named spidev

5

This looks like very old image. What do you mean by updated?

Can you please install latest image http://docs.emlid.com/Downloads/Real-time-Linux/ and try again?

6

ja image is old but thought a upgrade update would get me up to date again …?

ok I will get the newer image from jan 15 right?

7

Hugo, update upgrade might break stuff currently. It would be better to get updated images from our website.
After you install Jan 15 everything should be fine.

8

ok now I am on the new image, build apm planner from sources…

pi@navio-rpi ~/git/Navio/C++/Examples/GPS $ uname -a
Linux navio-rpi 3.12.36-rt50+ #1 PREEMPT RT Tue Jan 20 02:28:06 MSK 2015 armv6l GNU/Linux

gps example works…! great…

but no coordinates… possibly because inside the house…

Current GPS status:
gpsFixOk: 0
gps Fix status: no fix

Current location data:
iTOW: 502772.400000
Latitude: 0.000000
Longitude: 0.000000
Height: 0.000000

There is also no led light on
what is the best way to position the GPS antenna?

thx so far

hugo