How can I implement the Buttonless DFU feature? (SDK12.3, nRF52832)

RE: How can I implement the Buttonless DFU feature? (SDK12.3, nRF52832)

bjorn-spockeli — Wed, 28 Aug 2019 13:33:30 GMT

[quote user="Momora"]SDK 12.3 shows that the Buttonless DFU has added the fstorage header file. Is the source implemented using fstorage command correct?[/quote]

The SDK v12.3.0 bootloader uses fstorage to write the new application and/or SoftDevice to the correct sections of flash after receiving the new firmware image.

RE: How can I implement the Buttonless DFU feature? (SDK12.3, nRF52832)

Aser — Wed, 28 Aug 2019 01:54:08 GMT

Hi bjorn-spockelli!
Did you have a good vacation?
Thank you for remembering me and replying even late.

SDK 12.3 shows that the Buttonless DFU has added the fstorage header file. Is the source implemented using fstorage command correct?

RE: How can I implement the Buttonless DFU feature? (SDK12.3, nRF52832)

bjorn-spockeli — Tue, 27 Aug 2019 12:34:53 GMT

HI Aser,

I apologize for the late reply, I have been on vacation.

How much data are you trying to write to a specific location and where in flash is this specific location. FDS might not be the best choice if its something you do once. If this is a one-time operation, then I would recommend looking into using fstorage or the NVMC directly.

Best

Bjørn

RE: How can I implement the Buttonless DFU feature? (SDK12.3, nRF52832)

Aser — Wed, 14 Aug 2019 03:18:01 GMT

The scenario of the function that I want to do right now is that I can run DFU by booting in bootloader mode if it meets certain conditions while operating in normal application mode.

Considering this scenario, we tried to add specific data to a specific address in the flash memory (FDS) inside the MCU and add it to Bootloader Source as a condition that the data is executed in Bootloader mode.
However, when adding fds to the bootlaoder source, the implementation failed due to an unknown error.

RE: How can I implement the Buttonless DFU feature? (SDK12.3, nRF52832)

Aser — Wed, 14 Aug 2019 02:22:23 GMT

I'm so grateful and pleased with your advice.
But I'm sorry, but my Project Source is already trying to add an update function with the SDK almost complete with 12.3.
I think my project will be delayed a lot if I change SDK now.

RE: How can I implement the Buttonless DFU feature? (SDK12.3, nRF52832)

bjorn-spockeli — Tue, 13 Aug 2019 11:21:27 GMT

Hi Aser,

the buttonless DFU support in SDK v12.x.x is experimental, hence I strongly recommend that you move to SDK v14.2.0 as we have fixed several bugs in the DFU implementation.

Best regards

Bjørn