nRF Connect SDK + MCUBoot fails to load the application

[yosmoc]

Hi,

I'm struggling with running the MCUBoot with nRF Connect SDK.

MCUBoot fails reading image header primary image.

nRF Connect SDK version: 1.7.1(1.7.0 also)

CPU: nrf52832

First I have this problem in our private project, but I can reproduce this in the hello_world project.

Here is the procedure.

I add CONFIG_BOOTLOADER_MCUBOOT=y in prj.conf and run west build.

west -v build ../../nRF_Connect_SDK/zephyr/samples/hello_world \
  -b nrf52832 \
  -p -t partition_manager_report \
  -- --trace \
  -DBOARD_ROOT=${top_dir}/xxxxxx/hello_with_bootloader/ \
  -DCONFIG_SERIAL=y \
  -DCONFIG_BOOTLOADER_MCUBOOT=y \
  > build.log

nrf52832 is my custom board, just for printing debug messages in uart line.

Here is the build log.

ZEPHYR_BASE=/workspaces/xxxxxx/nRF_Connect_SDK/zephyr (origin: env)
-- west build: generating a build system
cmake version 3.21.3 is OK; minimum version is 3.13.1
Running CMake: /usr/bin/cmake -DWEST_PYTHON=/usr/bin/python3 -B/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build -S/workspaces/xxxxxx/nRF_Connect_SDK/zephyr/samples/hello_world -GNinja -DBOARD=nrf52832 --trace -DBOARD_ROOT=/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/ -DCONFIG_SERIAL=y -DCONFIG_BOOTLOADER_MCUBOOT=y
Running with trace output on.
-- Application: /workspaces/xxxxxx/nRF_Connect_SDK/zephyr/samples/hello_world
-- Zephyr version: 2.6.99 (/workspaces/xxxxxx/nRF_Connect_SDK/zephyr), build: v2.6.99-ncs1-1
-- Found Python3: /usr/bin/python3.8 (found suitable exact version "3.8.10") found components: Interpreter
-- Found west (found suitable version "0.11.1", minimum required is "0.7.1")
-- Board: nrf52832
-- Cache files will be written to: /home/yosmoc/.cache/zephyr
-- Found dtc: /usr/bin/dtc (found suitable version "1.5.0", minimum required is "1.4.6")
-- Found toolchain: gnuarmemb (/usr/local/gcc)
-- Found BOARD.dts: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/boards/arm/nrf52832/nrf52832.dts
-- Generated zephyr.dts: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/include/generated/devicetree_unfixed.h
-- Generated device_extern.h: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/include/generated/device_extern.h
-- Including generated dts.cmake file: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/dts.cmake
Parsing /workspaces/xxxxxx/nRF_Connect_SDK/zephyr/Kconfig
Loaded configuration '/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/boards/arm/nrf52832/nrf52832_defconfig'
Merged configuration '/workspaces/xxxxxx/nRF_Connect_SDK/zephyr/samples/hello_world/prj.conf'
Merged configuration '/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/misc/generated/extra_kconfig_options.conf'
Configuration saved to '/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/.config'
Kconfig header saved to '/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/include/generated/autoconf.h'
-- The C compiler identification is GNU 10.2.1
-- The CXX compiler identification is GNU 10.2.1
-- The ASM compiler identification is GNU
-- Found assembler: /usr/local/gcc/bin/arm-none-eabi-gcc
-- Application: /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/boot/zephyr
-- Zephyr version: 2.6.99 (/workspaces/xxxxxx/nRF_Connect_SDK/zephyr), build: v2.6.99-ncs1-1
-- Found Python3: /usr/bin/python3.8 (found suitable exact version "3.8.10") found components: Interpreter
-- Found west (found suitable version "0.11.1", minimum required is "0.7.1")
-- Board: nrf52832
-- Cache files will be written to: /home/yosmoc/.cache/zephyr
-- Found dtc: /usr/bin/dtc (found suitable version "1.5.0", minimum required is "1.4.6")
-- Found toolchain: gnuarmemb (/usr/local/gcc)
-- Found BOARD.dts: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/boards/arm/nrf52832/nrf52832.dts
-- Found devicetree overlay: /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/boot/zephyr/dts.overlay
-- Generated zephyr.dts: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot/zephyr/include/generated/devicetree_unfixed.h
-- Generated device_extern.h: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot/zephyr/include/generated/device_extern.h
-- Including generated dts.cmake file: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot/zephyr/dts.cmake
Parsing /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/boot/zephyr/Kconfig
Loaded configuration '/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/boards/arm/nrf52832/nrf52832_defconfig'
Merged configuration '/workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/boot/zephyr/prj.conf'
Merged configuration '/workspaces/xxxxxx/nRF_Connect_SDK/nrf/subsys/partition_manager/partition_manager_enabled.conf'
Configuration saved to '/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot/zephyr/.config'
Kconfig header saved to '/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot/zephyr/include/generated/autoconf.h'
-- The C compiler identification is GNU 10.2.1
-- The CXX compiler identification is GNU 10.2.1
-- The ASM compiler identification is GNU
-- Found assembler: /usr/local/gcc/bin/arm-none-eabi-gcc
-- Configuring done
-- Generating done
-- Build files have been written to: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot
-- Configuring done
-- Generating done
-- Build files have been written to: /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build
-- west build: running target partition_manager_report
cmake version 3.21.3 is OK; minimum version is 3.13.1
Running CMake: /usr/bin/cmake --build /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build --target partition_manager_report -- -v
[1/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E echo

[2/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E make_directory /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/boot/zephyr && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E make_directory /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E make_directory /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E make_directory /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/tmp && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E make_directory /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src/mcuboot_subimage-stamp && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E make_directory /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E make_directory /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src/mcuboot_subimage-stamp && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E touch /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src/mcuboot_subimage-stamp/mcuboot_subimage-mkdir
[3/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E echo_append && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E touch /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src/mcuboot_subimage-stamp/mcuboot_subimage-download
[4/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E echo_append && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E touch /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src/mcuboot_subimage-stamp/mcuboot_subimage-update
[5/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E echo_append && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E touch /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src/mcuboot_subimage-stamp/mcuboot_subimage-patch
[6/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E echo_append && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E touch /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src/mcuboot_subimage-stamp/mcuboot_subimage-configure
[6/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot && /opt/cmake-3.21.3-linux-x86_64/bin/cmake --build . --
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        IDT_LIST:          0 GB         2 KB      0.00%
[140/155] : && ccache /usr/local/gcc/bin/arm-none-eabi-gcc   zephyr/CMakeFiles/zephyr_prebuilt.dir/misc/empty_file.c.obj -o zephyr/zephyr_prebuilt.elf  zephyr/CMakeFiles/offsets.dir/./arch/arm/core/offsets/offsets.c.obj  -fuse-ld=bfd  -Wl,-T  zephyr/linker_zephyr_prebuilt.cmd  -Wl,-Map=/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/zephyr_prebuilt.map  -Wl,--whole-archive  app/libapp.a  zephyr/libzephyr.a  zephyr/arch/common/libarch__common.a  zephyr/arch/arch/arm/core/aarch32/libarch__arm__core__aarch32.a  zephyr/arch/arch/arm/core/aarch32/cortex_m/libarch__arm__core__aarch32__cortex_m.a  zephyr/arch/arch/arm/core/aarch32/mpu/libarch__arm__core__aarch32__mpu.a  zephyr/lib/libc/minimal/liblib__libc__minimal.a  zephyr/lib/posix/liblib__posix.a  zephyr/soc/arm/common/cortex_m/libsoc__arm__common__cortex_m.a  zephyr/soc/arm/nordic_nrf/nrf52/libsoc__arm__nordic_nrf__nrf52.a  zephyr/drivers/serial/libdrivers__serial.a  modules/nrf/lib/fatal_error/lib..__nrf__lib__fatal_error.a  modules/hal_nordic/nrfx/libmodules__hal_nordic__nrfx.a  -Wl,--no-whole-archive  zephyr/kernel/libkernel.a  -L"/usr/local/gcc/bin/../lib/gcc/arm-none-eabi/10.2.1/thumb/v7e-m/nofp"  -L/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr  -lgcc  zephyr/arch/common/libisr_tables.a  -mcpu=cortex-m4  -mthumb  -mabi=aapcs  -Wl,--gc-sections  -Wl,--build-id=none  -Wl,--sort-common=descending  -Wl,--sort-section=alignment  -Wl,-u,_OffsetAbsSyms  -Wl,-u,_ConfigAbsSyms  -nostdlib  -static  -no-pie  -Wl,-X  -Wl,-N  -Wl,--orphan-handling=warn && cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E echo

[147/155] : && ccache /usr/local/gcc/bin/arm-none-eabi-gcc   zephyr/CMakeFiles/zephyr_final.dir/misc/empty_file.c.obj zephyr/CMakeFiles/zephyr_final.dir/isr_tables.c.obj zephyr/CMakeFiles/zephyr_final.dir/dev_handles.c.obj -o zephyr/zephyr.elf  zephyr/CMakeFiles/offsets.dir/./arch/arm/core/offsets/offsets.c.obj  -fuse-ld=bfd  -Wl,-T  zephyr/linker.cmd  -Wl,-Map=/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/zephyr_final.map  -Wl,--whole-archive  app/libapp.a  zephyr/libzephyr.a  zephyr/arch/common/libarch__common.a  zephyr/arch/arch/arm/core/aarch32/libarch__arm__core__aarch32.a  zephyr/arch/arch/arm/core/aarch32/cortex_m/libarch__arm__core__aarch32__cortex_m.a  zephyr/arch/arch/arm/core/aarch32/mpu/libarch__arm__core__aarch32__mpu.a  zephyr/lib/libc/minimal/liblib__libc__minimal.a  zephyr/lib/posix/liblib__posix.a  zephyr/soc/arm/common/cortex_m/libsoc__arm__common__cortex_m.a  zephyr/soc/arm/nordic_nrf/nrf52/libsoc__arm__nordic_nrf__nrf52.a  zephyr/drivers/serial/libdrivers__serial.a  modules/nrf/lib/fatal_error/lib..__nrf__lib__fatal_error.a  modules/hal_nordic/nrfx/libmodules__hal_nordic__nrfx.a  -Wl,--no-whole-archive  zephyr/kernel/libkernel.a  -L"/usr/local/gcc/bin/../lib/gcc/arm-none-eabi/10.2.1/thumb/v7e-m/nofp"  -L/workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr  -lgcc  -Wl,--print-memory-usage  zephyr/arch/common/libisr_tables.a  -mcpu=cortex-m4  -mthumb  -mabi=aapcs  -Wl,--gc-sections  -Wl,--build-id=none  -Wl,--sort-common=descending  -Wl,--sort-section=alignment  -Wl,-u,_OffsetAbsSyms  -Wl,-u,_ConfigAbsSyms  -nostdlib  -static  -no-pie  -Wl,-X  -Wl,-N  -Wl,--orphan-handling=warn && cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E rename zephyr_final.map zephyr.map && /usr/local/gcc/bin/arm-none-eabi-objcopy --gap-fill 0xff --output-target=ihex --remove-section=.comment --remove-section=COMMON --remove-section=.eh_frame zephyr.elf zephyr.hex && /usr/local/gcc/bin/arm-none-eabi-objcopy --gap-fill 0xff --output-target=binary --remove-section=.comment --remove-section=COMMON --remove-section=.eh_frame zephyr.elf zephyr.bin && /usr/local/gcc/bin/arm-none-eabi-objdump -d -S zephyr.elf > zephyr.lst && /usr/local/gcc/bin/arm-none-eabi-readelf -e zephyr.elf > zephyr.stat
Memory region         Used Size  Region Size  %age Used
           FLASH:       14472 B     237056 B      6.10%
            SRAM:        4032 B        64 KB      6.15%
        IDT_LIST:          0 GB         2 KB      0.00%
[149/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build && /usr/bin/python3.8 /workspaces/xxxxxx/nRF_Connect_SDK/zephyr/scripts/mergehex.py -o /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/mcuboot_primary_app.hex /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/zephyr.hex
[151/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E echo_append && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E touch /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src/mcuboot_subimage-stamp/mcuboot_subimage-install
[152/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E make_directory /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/CMakeFiles && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E touch /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/CMakeFiles/mcuboot_subimage-complete && /opt/cmake-3.21.3-linux-x86_64/bin/cmake -E touch /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot/mcuboot_subimage-prefix/src/mcuboot_subimage-stamp/mcuboot_subimage-done
[153/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/mcuboot && /usr/bin/python3.8 /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/scripts/imgtool.py sign --key /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/root-rsa-2048.pem --header-size 0x200 --align 4 --version 0.0.0+0 --pad-header --slot-size 0x3a000 /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/mcuboot_primary_app.hex /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/app_signed.hex && /usr/local/gcc/bin/arm-none-eabi-objcopy --input-target=ihex --output-target=binary --gap-fill=0xff /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/mcuboot_primary_app.hex /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/app_to_sign.bin && /usr/bin/python3.8 /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/scripts/imgtool.py sign --key /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/root-rsa-2048.pem --header-size 0x200 --align 4 --version 0.0.0+0 --pad-header --slot-size 0x3a000 /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/app_to_sign.bin /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/app_update.bin && /usr/bin/python3.8 /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/scripts/imgtool.py sign --key /workspaces/xxxxxx/nRF_Connect_SDK/bootloader/mcuboot/root-rsa-2048.pem --header-size 0x200 --align 4 --version 0.0.0+0 --pad-header --slot-size 0x3a000 --pad /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/mcuboot_primary_app.hex /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/app_test_update.hex && /usr/local/gcc/bin/arm-none-eabi-objcopy --input-target=ihex --output-target=ihex --change-address=237568 --gap-fill=0xff /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/app_test_update.hex /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/app_moved_test_update.hex
[154/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build && /usr/bin/python3.8 /workspaces/xxxxxx/nRF_Connect_SDK/zephyr/scripts/mergehex.py -o /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/merged.hex --overlap=replace /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/mcuboot/zephyr/zephyr.hex /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/mcuboot_primary.hex /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/zephyr.hex /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/zephyr/app_signed.hex
[155/155] cd /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/modules/nrf && /usr/bin/python3.8 /workspaces/xxxxxx/nRF_Connect_SDK/zephyr/../nrf/scripts/partition_manager_report.py --input /workspaces/xxxxxx/xxxxxx/hello_with_bootloader/build/partitions.yml
  flash_primary (0x80000 - 512kB):
+-------------------------------------------------+
| 0x0: mcuboot (0xc000 - 48kB)                    |
+---0xc000: mcuboot_primary (0x3a000 - 232kB)-----+
| 0xc000: mcuboot_pad (0x200 - 512B)              |
+---0xc200: mcuboot_primary_app (0x39e00 - 231kB)-+
| 0xc200: app (0x39e00 - 231kB)                   |
+-------------------------------------------------+
| 0x46000: mcuboot_secondary (0x3a000 - 232kB)    |
+-------------------------------------------------+

  sram_primary (0x10000 - 64kB):
+-------------------------------------------+
| 0x20000000: sram_primary (0x10000 - 64kB) |
+-------------------------------------------+

And then I flash the image to the target and reboot, nothing happened.

west flash -- --hex-file build/zephyr/merged.hex
-- west flash: rebuilding
[0/4] Performing build step for 'mcuboot_subimage'
ninja: no work to do.
-- west flash: using runner blackmagicprobe
Remote debugging using /dev/ttyACM0
Target voltage: 0.00V
Available Targets:
No. Att Driver
 1      Nordic nRF52 M3/M4
 2      Nordic nRF52 Access Port
Attaching to Remote target
warning: No executable has been specified and target does not support
determining executable automatically.  Try using the "file" command.
0xfffffffe in ?? ()
Loading section rom_start, size 0xdc lma 0xc200
Loading section text, size 0x3498 lma 0xc2dc
Loading section .ARM.exidx, size 0x8 lma 0xf774
Loading section initlevel, size 0x28 lma 0xf77c
Loading section devices, size 0x48 lma 0xf7a4
Loading section sw_isr_table, size 0x138 lma 0xf7ec
Loading section device_handles, size 0x1a lma 0xf924
Loading section rodata, size 0x128 lma 0xf940
Loading section datas, size 0x20 lma 0xfa68
Start address 0x0000d54c, load size 14470
Transfer rate: 36 KB/sec, 657 bytes/write.
[Inferior 1 (Remote target) killed]

I supposed merged.hex includes the bootloader. Is it correct?

Anyway, I manually flash the bootloader.

west flash -d build/mcuboot and then the bootloader starts.

[16:59:34:903] *** Booting Zephyr OS build v2.6.99-ncs1-1  ***
[16:59:34:903] I: Starting bootloader
[16:59:34:903] I: Primary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
[16:59:34:903] I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
[16:59:34:903] I: Boot source: none
[16:59:34:903] W: Failed reading image headers; Image=0
[16:59:34:903] E: Unable to find bootable image

The problem is that bootloader cannot find the primary image. Did I miss something?

I found the issue here. https://github.com/mcu-tools/mcuboot/issues/1164

Something this related?

Thanks

[ovrebekk]

Hi

You mention that you use a custom board based on the nRF52832?

Do you have a standard nRF52DK available so you can compare?
If so, is the issue the same?

Best regards
Torbjørn

[yosmoc]

Hi,

Yes, I use the custom board based on nRF52832 QFAA, but I don't think this is due to the custom board. Unfortunately, I don't have a standard board now.

The procedure I create the custom board are

1. Create the custom board in VSCode + nRF Connect for VS Code version v2021.11.109

2. modify nrf52832.dts. I just add uart0 for debugging.

// Copyright (c) 2021 Nordic Semiconductor ASA
// SPDX-License-Identifier: Apache-2.0

/dts-v1/;
#include <nordic/nrf52832_ciaa.dtsi>

/ {
	model = "nrf52832";
	compatible = "nrf52832";

	chosen {
		zephyr,console = &uart0;
		zephyr,shell-uart = &uart0;
		zephyr,uart-mcumgr = &uart0;
		zephyr,bt-mon-uart = &uart0;
		zephyr,bt-c2h-uart = &uart0;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,code-partition = &slot0_partition;
	};
};

&uart0 {
	status = "okay";
	compatible = "nordic,nrf-uart";
	current-speed = <115200>;
	tx-pin = <12>;
	rx-pin = <11>;
	rts-pin = <14>;
	cts-pin = <13>;
};

&flash0 {
	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		boot_partition: partition@0 {
			label = "mcuboot";
			reg = <0x0 0xc000>;
		};
		slot0_partition: partition@c000 {
			label = "image-0";
			reg = <0xc000 0x32000>;
		};
		slot1_partition: partition@3e000 {
			label = "image-1";
			reg = <0x3e000 0x32000>;
		};
		scratch_partition: partition@70000 {
			label = "image-scratch";
			reg = <0x70000 0xa000>;
		};
		storage_partition: partition@7a000 {
			label = "storage";
			reg = <0x7a000 0x6000>;
		};
	};
};

I can run the application without a MCUBoot bootloader with this board.

Here is my custom board configuration.

nrf52832.tar.gz

Thanks,

[ovrebekk]

Hi

I would strongly recommend getting an nRF52DK in case you are planning to do extended development for the nRF52832. 

I assume you have been able to run some standard examples without MCUBoot running?

I will try to reproduce the issue you are seeing tomorrow and get back to you. 

And as a side note, if you haven't checked out Jimmy Wong's blog on MCUBoot already, I would highly recommend it. 

supposed merged.hex includes the bootloader. Is it correct?

That is correct. 

Best regards
Torbjørn

[yosmoc]

I would strongly recommend getting an nRF52DK in case you are planning to do extended development for the nRF52832. 

I assume you have been able to run some standard examples without MCUBoot running?

Yes, we have already had production-ready firmware without MCUBoot. I have also tested some standard examples (hello, dtm, NFC and so on) and works well. 

I will try to reproduce the issue you are seeing tomorrow and get back to you. 

Thanks. I will wait your answer.

And as a side note, if you haven't checked out Jimmy Wong's blog on MCUBoot already, I would highly recommend it. 

I will check, thanks.

[ovrebekk]

Hi 

I tried to reproduce the issue here, but for me it works fine. 

I simply copied the blinky sample from Zephyr, and set CONFIG_BOOTLOADER_MCUBOOT=y. After flashing the nRF52DK I can see that the program starts as expected, and I see the standard output from mcuboot (the "Example started" message I added to the example myself, just to make it clear that the application was running):

*** Booting Zephyr OS build v2.6.99-ncs1-1  ***
I: Starting bootloader
I: Primary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
I: Boot source: none
I: Swap type: none
I: Bootloader chainload address offset: 0xc000
ÿ*** Booting Zephyr OS build v2.6.99-ncs1-1  ***
Example started...

Could you try to flash the board using nrfjprog instead?

To do so simply run the following commands from the command line:

nrfjprog --recover
nrfjprog -e
nrfjprog --program merged.hex
nrfjprog -r

Best regards
Torbjørn

[yosmoc]

Hi,

Thanks for your answer.

I switch to using the nrfjprog (jLink), it starts working.

I didn't dig into what is the problem in the black magic probe, but it seems to skip to write the bootloader area in the merged.hex file.

Thanks for your support.

[ovrebekk]

Hi 

Good to hear you figured it out. We test with JLink only, so that is what I would recommend (if you buy a DK it comes with a built in JLink programmer that you can also use to flash your external board). 

Best regards
Torbjørn