nRF52840 Custom board needs restart its time I upload new firmware

RE: nRF52840 Custom board needs restart its time I upload new firmware

Amanda Hsieh — Tue, 29 Sep 2020 06:40:00 GMT

Hi Nick,

Not sure what causes the issue. You could try to duplicate the SDK example as the base and modify it with your code.

-Amanda H.

RE: nRF52840 Custom board needs restart its time I upload new firmware

Nikosant03 — Mon, 28 Sep 2020 13:54:21 GMT

Hi Amanda,

I confirm that using the cmd I can program the module with the command

nrfjprog -f NRF52 --program file.hex --chiperase -r

Also, what I've noticed is that when I flash the board using SES with any of the exampleS provided in SDK, I do not need to reset the module. But when I flash using my firmware I have to reset the module.

So I suppose that this is software related issue? Does Nordic's examples somehow performs a soft reset after flashing?

Nick

RE: nRF52840 Custom board needs restart its time I upload new firmware

Amanda Hsieh — Mon, 28 Sep 2020 11:21:38 GMT

Hi Nick,

Would you need extra reset if you use the command line tool to program as this post?

Are you able to use Segger to debug and perform reset?

-Amanda H.

RE: nRF52840 Custom board needs restart its time I upload new firmware

Nikosant03 — Fri, 25 Sep 2020 13:30:40 GMT

Hi Amanda,

I build and run the firmware directly from Segger IDE.

Nick

RE: nRF52840 Custom board needs restart its time I upload new firmware

Amanda Hsieh — Fri, 25 Sep 2020 13:24:51 GMT

Hi Nick,

How do you program the file? If you program with the command tool, you should perform reset with "nrfjprog --reset" after the programing as this post.

-Amanda H.