pvt channel has no longtitude and latitude data but correct data

[smauelGIS]

Hello,

I am using the this sample;

https://github.com/Rallare/fw-nrfconnect-nrf/tree/nrf9160_samples/samples/nrf9160/udp_gps

I want pvt data instead of nmea data from the gps.

I therefore changed the chennel from GPS_CHAN_NMEA, to GPS_CHAN_PVT in the gps_control_init function of the gps_controller.c file.

I also change the changed the chennel from GPS_CHAN_NMEA, to GPS_CHAN_PVT in the gps_channel_get function of the main.c file.

i however do not obtain longitude and latitude data, but i get the correct date.

I want to know if there is something i am not doing right or there exists another configuration i need to set to get this data.

Thanks and Regards

Samuel

[Hakon]

Hey,

please provide the code and any log output that could be helpful. Have you checked for error codes?

[smauelGIS]

Please find attached the code and yes i have checked but i dont have any error.

Thanks and Regards.udp_gps.zip 

[Hakon]

I suggest you set the option

CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y

in prj.conf, and see if that solves it.

[smauelGIS]

Hello,

I tried with this config option, and i got the longitute and latitute values. Thank you.

But i have a new problem.

I get gps and send to my webserver, periodically.

This works for some time then the system blocks! Nothing works anymore.

At first it was for 47 times, then 58 then 116 times.

Kindly let me know if there is something I'm doing wrong.

I read from one of the tickets on devzone; https://devzone.nordicsemi.com/f/nordic-q-a/48753/gps-lte_m-nb-iot-nrf91, that there is a problem with the back and forth switching.

I will kindly like to know if this issue is resolved.

Thanks and Regards

[Hakon]

You should open a separate ticket for this. What I can tell you is that the switching bug has been fixed, but there is still a restriction for how often you can turn the modem and off. If you turn the modem on and off more than 60 times within an hour, the modem will block.

[smauelGIS]

Thanks for the info, 

I will open a new ticket for this.

Thanks