Asset_tracker with simulated GPS

[Ivan Loncar]

Hello, 

I have a problem building Asset tracker from SDK application example with simulated GPS data. After building an error message shows. 

B 48 KB 132.29%
B 64 KB 13.10%
B 2 KB 1.95c:/gnuarmemb/bin/../lib/gcc/arm-none-eabi/8.3.1/../../../../arm-none-eabi/bin/ld.exe: zephyr\zephyr_prebuilt.elf section `.gnu.sgstubs' will not fit in region `FLASH'
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.
region `FLASH' overflowed by 15872 bytes
ld returned 1 exit status
build stopped: subcommand failed.
Build failed

I have selected simulated GPS on both spm_menucofing and in menuconfig. 

[Heidi]

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

[Ivan Loncar]

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. 

[Heidi]

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? 

[Ivan Loncar]

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.

[Heidi]

Heidi said:

Do not disable simulated GPS in SPM, just in your non-secure application.

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