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  • Case ID: 328553
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NRF52840 Secure DFU Over UART

Dillibabu

Hi All,

I want to do dfu over uart with secure bootloader, am using nrf52840-DK, nRF5_SDK_17.1.0_ddde560 SDK   and segger embedded studio V8.10.

compiled and flashed secure_bootloader_uart_mbr_pca10056_debug project which is working fine find log below,

After that I have created dfu zip file by executing below command. have used led blink project hex file in below command. 

nrfutil pkg generate --hw-version 52 --sd-req 0x00 --application nrf52840_xxaa.hex --application-version 2 --key-file priv.pem dfu_uart_package.zip

I am able to dfu over UART but after bootloader execution it isn't switch to user application it is stuck in boot loader itself, find log below,

don't want soft device feature,

not sure which place I made mistake, kindly guide me how to fix this issue or please provide step to do this. 

Parents Reply Children
  • 0 in reply to Sigurd

    Hi Sigurd,

    Thanks for your reply,

    as per your reply I have used SES 5.42a but still getting same error, Here attached logfile,

    Fullscreen 3386.Nrf_Log.txt Download 
    <info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> nrf_dfu_settings: Using settings page.
<debug> nrf_dfu_settings: Copying forbidden parts from backup page.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<debug> app: Enter nrf_bootloader_fw_activate
<info> app: No firmware to activate.
<info> app: Boot validation failed. No valid app to boot.
<debug> app: DFU mode because app is not valid.
<info> nrf_bootloader_wdt: WDT is not enabled
<debug> app: in weak nrf_dfu_init_user
<debug> app: timer_stop (0x20000038)
<debug> app: timer_activate (0x20000038)
<info> app: Entering DFU mode.
<debug> app: Initializing transports (found: 1)
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init()
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init() completed
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> app: Enter main loop
<debug> nrf_dfu_serial: Received ping 1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_PING
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x9, 0x1]
<debug> nrf_dfu_serial: Set receipt notif target: 0
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_RECEIPT_NOTIF_SET
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x2, 0x1]
<debug> nrf_dfu_serial: Received serial mtu
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_MTU_GET
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x7, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_SELECT (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x6, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (command)
<debug> app: timer_stop (0x20000038)
<debug> app: timer_activate (0x20000038)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x1, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (command)
<debug> nrf_dfu_validation: PB: Init packet data len: 62
<info> nrf_dfu_validation: Signature required. Checking signature.
<info> nrf_dfu_validation: Calculating hash (len: 62)
<info> nrf_dfu_validation: Verify signature
<info> nrf_dfu_validation: Image verified
<debug> app: Enter nrf_dfu_cache_prepare()
<debug> app: required_size: 0x708.
<debug> app: single_bank: false.
<debug> app: keep_app: false.
<debug> app: keep_softdevice: false.
<debug> app: SD_PRESENT: false.
<debug> app: Bank contents:
<debug> app: Bank 0 code: 0x00: Size: 0x0
<debug> app: Bank 1 code: 0x00: Size: 0x0
<debug> app: pass: 0.
<debug> app: cache_address: 0x1000.
<debug> app: cache_too_small: false.
<debug> app: keep_firmware: false.
<debug> app: delete_more: false.
<debug> nrf_dfu_validation: Write address set to 0x00001000
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x000FF000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x000FF000, len=1 pages), queue usage: 0
<debug> nrf_dfu_flash: Flash erase success: addr=0x000FF000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000FF000, src=0x20003D6C, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000FF000, pending 0
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x000FE000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x000FE000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x000FE000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000FE000, src=0x200039EC, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000FE000, pending 0
<debug> nrf_dfu_req_handler: Writing valid init command to flash.
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x4, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_SELECT (data)
<debug> nrf_dfu_req_handler: crc = 0x0, offset = 0x0, max_size = 0x1000
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x6, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (data)
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x00001000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x00001000, pending 0
<debug> nrf_dfu_req_handler: Creating object with size: 1800. Offset: 0x00000000, CRC: 0x00000000
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x1, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001000, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001000, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001040, src=0x20003804, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001040, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001080, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001080, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000010C0, src=0x20003804, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000010C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001100, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001100, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001140, src=0x20003804, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001140, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001180, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001180, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000011C0, src=0x20003804, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000011C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001200, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001200, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001240, src=0x20003804, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001240, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001280, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001280, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<info> nrf_dfu_serial_uart: Allocated buffer 20003908
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000012C0, src=0x20003804, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000012C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001300, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001300, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001340, src=0x2000390C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001340, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003908
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001380, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001380, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000013C0, src=0x2000390C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000013C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003908
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001400, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001400, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001440, src=0x2000390C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001440, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003908
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001480, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001480, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000014C0, src=0x2000390C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000014C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003908
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001500, src=0x20003888, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001500, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001540, src=0x2000390C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001540, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003908
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001580, src=0x20003804, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001580, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000015C0, src=0x2000390C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000015C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003908
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001600, src=0x20003804, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001600, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001640, src=0x2000390C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001640, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003908
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001680, src=0x20003804, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001680, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20003800
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000016C0, src=0x2000390C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000016C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00001700, src=0x20003804, len=8 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00001700, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (data)
<debug> nrf_dfu_req_handler: Offset:1800, CRC:0x5BC0EBCA
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20003884
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (data)
<debug> nrf_dfu_req_handler: Whole firmware image received. Postvalidating.
<debug> nrf_dfu_validation: Hash verification. start address: 0x1000, size: 0x708
<debug> nrf_dfu_validation: Invalidating old application in bank 0.
<debug> nrf_dfu_serial: Sending Response: [0x4, 0x1]
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x000FF000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x000FF000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x000FF000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000FF000, src=0x20003D6C, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000FF000, pending 0
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x000FE000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x000FE000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x000FE000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000FE000, src=0x200039EC, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000FE000, pending 0
<debug> nrf_dfu_req_handler: All flash operations have completed. DFU completed.
<debug> app: Shutting down transports (found: 1)
<debug> app: Resetting bootloader.
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> nrf_dfu_settings: Using settings page.
<debug> nrf_dfu_settings: Copying forbidden parts from backup page.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<debug> app: Enter nrf_bootloader_fw_activate
<debug> app: Valid App
<debug> app: Enter nrf_dfu_app_continue
<debug> app: No copy needed
<debug> app: Setting app as valid
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x000FF000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x000FF000, len=1 pages), queue usage: 0
<debug> nrf_dfu_flash: Flash erase success: addr=0x000FF000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000FF000, src=0x20003D6C, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000FF000, pending 0
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x000FE000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x000FE000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x000FE000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000FE000, src=0x200039EC, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000FE000, pending 0
<debug> app: Resetting bootloader.
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> app: Inside main

    I took LED blink project as application and configured placement macros like below,

    FLASH_PH_START=0x0

    FLASH_PH_SIZE=0x100000

    RAM_PH_START=0x20000000

    RAM_PH_SIZE=0x40000

    FLASH_START=0x1000

    FLASH_SIZE=0x10000

    RAM_START=0x20000008

    RAM_SIZE=0x40000

    After flash application over UART I am getting log message up to "Inside main" it is not entering into the "nrf_bootloader_init" function, 

    Used below command to create the ZIP file,

    nrfutil pkg generate --hw-version 52 --sd-req 0x00 --application blinky_pca10056.hex --application-version 1 --key-file private.pem dfu_uart_package.zip

    Used below command to flash the application,

    dfu serial -pkg dfu_uart_package.zip -p COM5 -b 115200 -fc 0

    above command was taking 20-30 sec to start the flashing

    kindly correct me if I made any mistake and help to fix this issue.

    Thanks

  • 0 in reply to Dillibabu

    Hi,

    I think some more debugging is needed here. Looks like it goes back to DFU mode after the update.

    Could you check if dfu_enter_check() is returning true?

  • 0 in reply to Sigurd

    Hi Sigurd,

    After DFU update it is not enter into the "nrf_bootloader_init()" function.

    Thanks

  • 0 in reply to Dillibabu

    Are you able to debug, and see what the code the CPU is executing? Is it stuck in some loop somewhere, etc ?

  • 0 in reply to Sigurd

    Hi Sigurd,

    it was stuck at below line 

     

    After remove NRF_LOG_FLUSH() function calling it is switching to application properly.

    Thanks

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