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  • Case ID: 279726
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mcuboot on nRF9160 custom board

MayurKumar

I have written simple hello world code on nRF9160 custom board and enables the MCUBoot as bootloader using CONFIG_BOOTLOADER_MCUBOOT=y in prj.conf file.

Also, made some bootloader related configuration at mcuboot.conf file.

I have kept the break point on loader.c file but my program execution is not halting there.

my question is that. How to debug the mcuboot a bootloader code on nRF9160 custom board?

I am using Segger Embedded Studio IDE.

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  • 0

    Hi,

    In my hello world application i have added the below prj.conf

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    # Bootloader
    CONFIG_BOOTLOADER_MCUBOOT=y
    CONFIG_SECURE_BOOT=y
    #CONFIG_BUILD_S1_VARIANT=y
    CONFIG_IMG_MANAGER=y
    CONFIG_MCUBOOT_IMG_MANAGER=y
    # External Falsh for secondary storage
    CONFIG_FLASH=y
    CONFIG_FLASH_MAP=y
    CONFIG_FLASH_PAGE_LAYOUT=y
    CONFIG_PM_EXTERNAL_FLASH=y
    CONFIG_PM_EXTERNAL_FLASH_DEV_NAME="MX25R64"
    CONFIG_PM_EXTERNAL_FLASH_BASE=0x0
    CONFIG_PM_EXTERNAL_FLASH_SIZE=0x800000
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

    mcuboot.conf as below

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    #
    CONFIG_SPI=y
    #CONFIG_SPI_1=y
    CONFIG_SPI_NOR=y
    CONFIG_SPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096
    #CONFIG_SPI_NOR_STACK_WRITE_BUFFER_SIZE=16
    CONFIG_MULTITHREADING=y
    CONFIG_BOOT_MAX_IMG_SECTORS=512
    # Enable these for serial recovery
    CONFIG_LOG=y
    CONFIG_LOG_DEFAULT_LEVEL=4
    CONFIG_LOG_OVERRIDE_LEVEL=4
    CONFIG_PM_EXTERNAL_FLASH=y
    CONFIG_PM_EXTERNAL_FLASH_DEV_NAME="MX25R64"
    CONFIG_PM_EXTERNAL_FLASH_BASE=0x0
    CONFIG_PM_EXTERNAL_FLASH_SIZE=0x800000
    CONFIG_PM_EXTERNAL_FLASH_SUPPORT_LEGACY=y
    #secondary image
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
     

    pm_static.yml as below

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    mcuboot:
    address: 0x0
    end_address: 0xc000
    placement:
    before:
    - mcuboot_primary
    region: flash_primary
    size: 0xc000
    EMPTY_0:
    address: 0xC000
    end_address: 0x10000
    placement:
    before:
    - mcuboot_pad
    region: flash_primary
    size: 0x4000
    mcuboot_primary:
    address: 0x10000
    end_address: 0x100000
    orig_span: &id001
    - mcuboot_pad
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

    Thank You,

    MayurKumar

  • 0 in reply to MayurKumar

    Hey Mayur!

    Yes, this is possible. This is what you need to do:

    - Program the sample to the chip

    - Start an Ozone-session, and when you choose an elf file, then choose <sample>/<build folder>/mcuboot/zephyr/zephyr.elf.

    - Then you drag the file /bootloader/mcuboot/boot/bootutil/src/loader.c into the Ozone window.

    - Then choose debug --> start debug session --> Attach to running program

    - Then set a breakpoint in loader.c and press Debug --> reset

    This should work.

    Best regards,

    Elfving

Reply
  • 0 in reply to MayurKumar

    Hey Mayur!

    Yes, this is possible. This is what you need to do:

    - Program the sample to the chip

    - Start an Ozone-session, and when you choose an elf file, then choose <sample>/<build folder>/mcuboot/zephyr/zephyr.elf.

    - Then you drag the file /bootloader/mcuboot/boot/bootutil/src/loader.c into the Ozone window.

    - Then choose debug --> start debug session --> Attach to running program

    - Then set a breakpoint in loader.c and press Debug --> reset

    This should work.

    Best regards,

    Elfving

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