Hi,
I am using nrf5340, NCS v2.1.2.
My software arch is s0 + MCUboot + application, and i want to add an upgradable bootloader named MCUboot, of course an upgradable application(appcore + netcore).
I know the mcumgr can do this, but i want application to get the new upgradable packet by BLE or other wireless communications mode, then put them to their upgradable flash area.
After this, the b0 will boot new MCUboot or the MCUboot will boot new application.
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I read some doc about this more than once at nordic NCS doc.
Now i can upgrade the appcore and netcore by MCUboot, and adding an upgradable MCUboot i only need to do.
I try to add B0 in my project, and flash all of them in my nrf5340dk. I see all of them in my board by nrf connect for desktop.
I modify CONFIG_FW_INFO_FIRMWARE_VERSION in mcuboot.conf, and build again. Then i flash 'signed_by_mcuboot_and_b0_s1_image_test_update.hex' using nrfjprog tools.
In my debug tool, i see B0 boot the new MCUboot, and the new MCUboot boot applicaton.
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At this point, i think i only need to write new MCUboot upgradable packet to flash area s0 or s1 in my application. After reset board, the new MCUboot will booting.
But i can not erase flash area s1 by flash_area_erase() and img_mgmt_impl_erase_slot().
Using flash_area_erase() i got bus falut and img_mgmt_impl_erase_slot() is not erase flash area s1 actually.
bus falut:
r14/r15: nrf_nvmc.h:line:306:*(volatile uint32_t *)page_addr = 0xFFFFFFFF;
I hope i can describe the problem clearly.
Thanks for any suggestion.
Regards,
Yang Hu
