nRF52840, DFU issue

[swna3708]

Hi All.

SDK15.3.0 / DK / nRF52840

I've been testing DFU on nRF52840 with DK.

When i tested it on nRF52832 all works fine. i followed this (https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/getting-started-with-nordics-secure-dfu-bootloader)

e.x) flasing merged image (secure_bootloader + bootloader_setting + SoftDevice + Application)

But when i did the same thing to the nRF52840, it didn't work

The nRF studio said "This hex file has data in SoftDevice region" which happend on nRF52832 too. but case of nRF52832, it was solved with merging images. 

but in case of 52840, it was not solved.

and when i flashed on IDE which is segger, Secure_bootloader_example, it worked. but whether merging images(softdevice, secure_bootloader) or not , on nRFgo, it didn't

what's difference between flashing on IDE and nRFgo?

please let me know how i solve this problem.

p.s) it din't work on SDK v15.2.0 too 

thanks.

regard.

[Amanda Hsieh]

Hi, 

Did you follow the note for nRF52840 while generating the bootloader setting as the following?

Note: For nRF52840, you use --family NRF52840.
--family: Device family, match with your chip. If you have nRF52840 you have to use NRF52840 instead of NRF52.

 

what's difference between flashing on IDE and nRFgo?

As mentioned here and here, nRFgo Studio is outdated and we are not working on the app anymore. Does it work to program the bootloader with nRF Connect for desktop and the programmer app?

-Amanda H. 

[swna3708]

Hi, thanks for your reply :)

1) no, i didn't realize that. you mean when generating the bootloader setting, use --family NRF52840 not the --family NRF52? and where i can see the note related with generating bootloader setting?

2)  yes i tried it with nRF Connect but it didn't work either.

regard.

[Amanda Hsieh]

Hi, 

swna3708 said:

you mean when generating the bootloader setting, use --family NRF52840 not the --family NRF52?

Yes.  

 

swna3708 said:

where i can see the note related with generating bootloader setting?

You could search "52840" in the https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/getting-started-with-nordics-secure-dfu-bootloader

-Amanda H.

[swna3708]

It works ! 

I changed nrf52 to nrf52840

and used nRF_Connect

thank you !! 

[Amanda Hsieh]

Please kindly verify the answer to benefit other users. Thanks.