sysbuild: Add bootconf image #493
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Adds a semi-zephyr project which will lock the bootconf area on supported devices. Generates and flashes a seprate hex file which is also added into the production hex file. Some issues with CMake have also been tidied up to improve readability Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no> Signed-off-by: Mateusz Michalek <mateusz.michalek@nordicsemi.no>
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michalek-no
approved these changes
Nov 19, 2025
nvlsianpu
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Nov 19, 2025
anhmolt
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Nov 20, 2025
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anhmolt
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Could use some documentation, and changelog(?).
Maybe mention here that the boot partition will be protected when CONFIG_BM_BOOT_BOOTCONF_LOCK_WRITES is set, and that recover or erase needs to be used to be able to flash the mcuboot+softdevice image again.
In any case, west flash will fail without --recover or --erase options after having programmed the bootconf "image". As intended. Could be good to explain why, and what to do, when seeing
-- west flash: using runner nrfutil
Using board 0123456789
-- runners.nrfutil: Flashing file: /ncs/nrf-bm/samples/bluetooth/ble_hids_keyboard/build/mcuboot/zephyr/zephyr_signed_softdevice_flash_metadata.hex
-- runners.nrfutil: Connecting to probe
-- runners.nrfutil: Programming image
Error: One or more batch tasks failed:
* 0123456789: Device error: Address 0x00000000 is in a protected RRAMC region (Generic)
FATAL ERROR: command exited with status 1: nrfutil --json device x-execute-batch --batch-path /ncs/nrf-bm/samples/bluetooth/ble_hids_keyboard/build/mcuboot/zephyr/generated_nrfutil_batch.json --serial-number 0123456789
| # Create the runners_yaml_props_target that flash system expects | ||
| add_custom_target(runners_yaml_props_target) | ||
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| # Set hex_file property to point to zephyr.hex in this directory |
| ) | ||
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| # Override the runners.yaml path to use CMAKE_CURRENT_BINARY_DIR/zephyr instead of | ||
| # PROJECT_BINARY_DIR, this ensures runners.yaml is generated at <build>/softdevice/zephyr where |
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Needs updating. softdevice is not correct here.
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| set(BYPRODUCT_HEX_NAME | ||
| "${CMAKE_BINARY_DIR}/bootconf.hex" | ||
| CACHE FILEPATH "MCUboot with signed softdevice and flash metadata hex file" FORCE |
anhmolt
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Nov 25, 2025
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The incorrect comments can be fixed later. Let's get this merged.
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Adds a semi-zephyr project which will lock the bootconf area on supported devices. Generates and flashes a seprate hex file which is also added into the production hex file. Some issues with CMake have also been tidied up to improve readability