Asset_tracker with simulated GPS

RE: Asset_tracker with simulated GPS

Heidi — Fri, 11 Sep 2020 12:43:05 GMT

So I took a further look at the GPS simple and it doesn't look like this sample has support for using simulated GPS data, just by enabling this configuration. You will have to re-write the sample to use simulated GPS data.

However, the asset tracker should have support for enabling simulated GPS. Just enable this config here.

Best regards,

Heidi

RE: Asset_tracker with simulated GPS

Ivan Loncar — Fri, 11 Sep 2020 08:16:11 GMT

It isn't an error it just doesn't produce simulated GPS data it behaves the same when I use real GPS data.

Yes, I am using the LTE link Monitor.

And I am using nrf9160 DK.

devzone.nordicsemi.com/.../2020_2D00_09_2D00_11T08_5F00_10_5F00_10.247Z_2D00_log.txt

RE: Asset_tracker with simulated GPS

Heidi — Fri, 11 Sep 2020 08:00:56 GMT

Okay, so when you do it correctly you are able to build and flash the program to the device and then you get a new error, which is that you don't see any serial information from the device, correct?

Then I will need to see the log file from the application? Are you using LTE Link Monitor? Are you using nRF9160 DK or Thingy:91?

RE: Asset_tracker with simulated GPS

Ivan Loncar — Thu, 10 Sep 2020 13:56:59 GMT

I was only going there in the hope it will work since when I enable simulated GPS trough menuconfig and look at what am I getting on the serial communication nothing happens. It is always searching a fix and that is it... What should I do to make the simulated GPS work?

RE: Asset_tracker with simulated GPS

Heidi — Thu, 10 Sep 2020 13:48:10 GMT

[quote user="Heidi"]Do not disable simulated GPS in SPM, just in your non-secure application.[/quote]

Do not go into spm_menuconfig and enable GPS simulator. You only enable this in the menuconfig for your application.

RE: Asset_tracker with simulated GPS

Ivan Loncar — Thu, 10 Sep 2020 13:34:24 GMT

NCS v1.3.0

No, I didn't add CONFIG_GPS_SIM=y. I opened in Segger Embedded Studio Project->Configure nRF connect SDK project and selected spm_menuconfig navigated to GPS drivers and checked GPS simulator and pressing configure. After i build the project I see that the FLASH has overflowed and that:

SPM and app are sharing an SPU region. Cannot partition flash correctly into secure and non-secure. Adjust partitions sizes so they are placed in separate regions.

I am reading this tab (https://devzone.nordicsemi.com/f/nordic-q-a/50155/nrf9160-memory-partition )with memory partition problem to see if that helps.

But I was hoping since it is an SDK version that it would work without me messing with partitioning etc.

Am I going in the right direction or os the problem in the beginning with how I try to enable GPS simulator in the first place?

P.S. True GPS readings with provided MOLEX GPS antenna are working in this example and I have no problems with it.

RE: Asset_tracker with simulated GPS

Heidi — Thu, 10 Sep 2020 13:07:54 GMT

Okay, I see. Which NCS version are you using?

So you're building nrf9160/gps sample out of the box but adding CONFIG_GPS_SIM=y in the prj.conf file in the sample? And SPM is untouched, correct?

RE: Asset_tracker with simulated GPS

Ivan Loncar — Thu, 10 Sep 2020 12:00:28 GMT

The flash is overflowed again, I have tried the simulated GPS from .../nrf/samples/nrf9160/gps example where the flash is also overflowing when I use simulated GPS in just SPM.

RE: Asset_tracker with simulated GPS

Heidi — Thu, 10 Sep 2020 11:48:45 GMT

Hi!

Do not disable simulated GPS in SPM, just in your non-secure application. Let me know if that solves this issue for you!

Best regards,

Heidi