RE: segger and nrf 9160 DK, how to download code to board?

Marte Myrvold — Thu, 17 Dec 2020 07:33:47 GMT

Hi Julio,

Great to hear that you got it to work. Good luck developing!

Best regards,

Marte

RE: segger and nrf 9160 DK, how to download code to board?

tracking — Wed, 16 Dec 2020 15:45:45 GMT

Hi Marte

Thank you very much for response quickly, now its working! I doesn’t have installed the Cmake, that’s was the problem, and I already have run gps example without problems, your answer was very useful to me, thank you.

Kind Regards

Julio

RE: segger and nrf 9160 DK, how to download code to board?

Marte Myrvold — Wed, 16 Dec 2020 12:29:24 GMT

Hi Julio,

You can find the guide for building and programming a sample application here, but I'll also some of it here for you.

Could you try opening another sample, like one in the nrf folder instead and see if the error persists? Since you're already interested in testing GPS, you could try the GPS sample for nRF9160. This sample will print GPS data, so then you'll also be able to see whether you get a GPS fix or not.

I don't know what configurations you chose when opening the project, but for the nRF9160 DK you must remember to choose non-secure when you're building samples that run in the non-secure domain (you can read more about secure vs non-secure here if you're interested). By that, I mean that you have to choose "nrf9160dk_nrf9160ns" as your build target, with "ns" for non-secure. Below you can see a picture of how to open the project:

After you've opened the project in SES, you can see the main.c file by opening "Solution 'build'" -> "Project 'app/libapp.a'" -> "C_COMPILER__app" in the project window on the left side, see picture below:

In order to download the code to your nRF9160 DK, you first have to build it, which you do by going to "Build" -> "Build Solution". After you've successfully built it, you can program your board by going to "Target" -> "Download zephyr/merged.hex" or "Target" -> "Download zephyr/zephyr.elf".

As for your problem with not transmitting GPS data, I would recommend seeing if you get a fix with the GPS sample. However, it might take some time to get the first fix, as you have to get a signal from the satellites, and then the DK has to download quite a lot of data. In addition, you need a clear enough view to the satellites in order to get a signal from them, and things like buildings, trees, etc. will affect the GPS signal. How are your testing conditions when testing GPS? If you're testing indoors, you're unlikely to get a good GPS signal, especially without using an external antenna.

Best regards,

Marte