Thingy:91 usage without nRF9160 DK?

RE: Thingy:91 usage without nRF9160 DK?

Achim Kraus — Tue, 25 Feb 2020 18:40:24 GMT

Thanks! I found the answer in

Using nrf9160 as a proper GPS tracker

RE: Thingy:91 usage without nRF9160 DK?

Sigurd — Tue, 25 Feb 2020 15:26:11 GMT

Please create a new case for this new question.

RE: Thingy:91 usage without nRF9160 DK?

Achim Kraus — Mon, 24 Feb 2020 11:12:27 GMT

Thank you for your answer.

I got the "thingy91_nbiot_dfu_2019-11-29_d3130d77" now running and conected it to the nordic cloud using a vodafone sim card.

But my irritation doesn't end. GPS seems to be tricky. There are comments, telling that it requires PSM. PSM with MQTT makes me wondering. AFAIK, PSM works with UDP, the vodafone sim card, I use, successfuly supports PSM/UDP on an other modem.

So:

- is PSM required for GPS?

- can PSM be used together with MQTT?

Or, which protocol is used by that app "thingy91_nbiot_dfu_2019-11-29_d3130d77"?

RE: Thingy:91 usage without nRF9160 DK?

Sigurd — Fri, 21 Feb 2020 14:12:34 GMT

Hi,

[quote user=""]Any experience with that? Is it possible to generate just a hex with SES and apply that with MCUboot?[/quote]

Yes, it possible. See this link.

Try adding these changes to the prj.conf file, so that it generates the app image(app_signed.hex) needed for mcuboot:

# MCUBOOT
CONFIG_BOOTLOADER_MCUBOOT=y
CONFIG_IMG_MANAGER=y
CONFIG_MCUBOOT_IMG_MANAGER=y

# Flash
CONFIG_FLASH=y
CONFIG_IMG_ERASE_PROGRESSIVELY=y

But, you won't be able to debug, set breakpoints, step through the code, etc without a programmer/debugger. So as mentioned in the post you linked to, for development you want to have a debugger. If you have a 10-pin cable, then you can use the debugger on the nRF91-DK to debug the Thingy:91. See Figure 1 at this page.