Different behaviour with same program and boards

RE: Different behaviour with same program and boards

Awais — Mon, 15 Jun 2020 09:56:13 GMT

Thanks Paul,

I have checked it already , it also worked for me 🙂

Cheers,
Awais

RE: Different behaviour with same program and boards

PaulGui — Mon, 15 Jun 2020 06:52:27 GMT

I post a ticket about that, here : https://devzone.nordicsemi.com/f/nordic-q-a/62449/do-an-erase-all-like-segger-for-dk-but-for-dongle-on-nrfconnect
Amanda Hsieh told me that you could erase the flash memory between 0x2000 and 0xE0000 (beginning of the bootloader).
Then, Jørgen Holmefjord give me a code to erase the flash and it works well for me (named flasherase_nrf52840_dongle_sdk16).
Sincerely
PG

RE: Different behaviour with same program and boards

Awais — Sat, 13 Jun 2020 13:40:33 GMT

Hi Paul & community,

Thanks for asking this question, I am facing the same issue. and in addition if I have used the dongle as zigbee bulb I am also unable to reset it. when I make them a mesh light they get stuck with all the LED's on. Any ideas about that?

RE: Different behaviour with same program and boards

PaulGui — Thu, 11 Jun 2020 11:46:52 GMT

Here : https://devzone.nordicsemi.com/f/nordic-q-a/44727/nrf52840-dongle-erase-provisioning-data
You talk about a way without solder solution.

Could you explain more precisely or if you have this type of program, could you share it ?
Sincerely
PG

RE: Different behaviour with same program and boards

Hung Bui — Thu, 11 Jun 2020 11:29:55 GMT

Hi Paul,

The bootloader for the nRF52840 dongle is the same bootloader you find in \SDKv16.0\examples\dfu\open_bootloader\pca10059_usb

If you plan to do development using the dongle, its better to solder the header on P1 port and program the firmware directly via SWD cable by a Development Kit (Remove the bootloader). The reason is that the bootloader doesn't offer an option to erase all data on the board, you can only replace the old image with the new image. This may leave the old provisioning data on the board and the application may crash.

RE: Different behaviour with same program and boards

PaulGui — Thu, 11 Jun 2020 08:29:20 GMT

I tried with a new dongle it's works ! So i pressume that it's the bootloader on the non-working dongle which is the problem.
Do you have the hex file of default bootloader on dongle nRF52840 v1.2 ?

RE: Different behaviour with same program and boards

PaulGui — Thu, 11 Jun 2020 06:25:53 GMT

I don't have any clues to discover why i got this problem

RE: Different behaviour with same program and boards

PaulGui — Wed, 10 Jun 2020 17:13:07 GMT

Yes, exactly .

RE: Different behaviour with same program and boards

Jay Tyzzer — Wed, 10 Jun 2020 16:20:06 GMT

Even when you swap them out as to which one you program first?