Bootloader upgrade with SPI flash (XIP) address

[DM]

I am developing a bootloader that upgrade the bootloader/software/application from SPI flash. I think I can use memcpy from XIP address directly. However, bootloader upgrade is using nrf_dfu_mbr_copy_bl function.

So my question is: Will the MBR able to recover (reprogram) the bootloader area from XIP address if the power loss during the upgrade process?

Thank.

[AndreasF]

Hi.

The MBR does not support his behavior, unfortunately.

Best regards,

Andreas

[DM]

So if I reserved an area in internal flash for the new bootloader image and start the nrf_dfu_mbr_copy_bl, will the recovery work?

Thank you for the quick reply.

[AndreasF]

Hi.

That should work.

Best regards,

Andreas