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few questions about bootloader settings

ziv123

hello Nordic

i am working with nrf52832 soc with SDK 16.0, S132 V7.0.1

following this path:

https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/getting-started-with-nordics-secure-dfu-bootloader

and this : https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrfutil%2FUG%2Fnrfutil%2Fnrfutil_settings_generate_display.html

1. when trying to read current setting of existing bootloader in the examples i get this:

C:\Nordik SDK\examples\dfu\secure_bootloader>nrfutil settings display pca10040_uart\ses\Output\Release\Exe\secure_bootloader_uart_mbr_pca10040.hex
Bad access at 0x7F000: not enough data to read 4 contiguous bytes
Usage: nrfutil settings display [OPTIONS] HEX_FILE

Error: Failed to parse .hex file: Bad access at 0xFF000: not enough data to read 4 contiguous bytes

why is that ?

2. if i generate a setting for the bootloader and i include the softdevice in the "nrf settings generate command (like so:  --softdevice FILE s132_nrf52_7.0.1_softdevice.hex)

do i still need to mergehex the bootloader with the s132 hex file ? considering that when i flash my application (using SEGGER) after erasing the nrf52832 i do not need to flash the softdevice separately

3. the settings generate command refers to application version, do i need to change the setting each time i change application version or it's name (considering the version is in the name) ?

4. if i mergehex the bootloader settings hex file with the bootloader hex file and i flash the bootloader without having an application flashed on the device, what will happen ? would i be able to flash the application via SEGGER normally or must i have the application hex flashed before the flashing of the bootloader or mergehex with the bootloader ?

that it for now

p.s. 5. in the dfu examples, what's the difference between pca10040_uart to pca10040_uart_debug can both be used for production also can they be used for a PCB not an nrf52832DK ? 

hope to read from you soon

best regards

Ziv

 

Parents
  • 0

    Hi Ziv,

    1. when trying to read current setting of existing bootloader in the examples i get this:

    The bootloader settings page is not part of the hex file you get when you build the bootloader. This is why parsing it with nrfutil fails (as expected).

    2. if i generate a setting for the bootloader and i include the softdevice in the "nrf settings generate command (like so:  --softdevice FILE s132_nrf52_7.0.1_softdevice.hex)

    do i still need to mergehex the bootloader with the s132 hex file ? considering that when i flash my application (using SEGGER) after erasing the nrf52832 i do not need to flash the softdevice separately

    Yes you still need to merge all hex files you want to program, including the bootloader settings page.

    3. the settings generate command refers to application version, do i need to change the setting each time i change application version or it's name (considering the version is in the name) ?

    The application version and bootloader version needs to be incremented each time you make a new version. This is because the bootloader prevents downgrades and (optionally) also prevents upgrading to the same version. It is the number (integer) that matters here, the string is more for user-friendliness.

    4. if i mergehex the bootloader settings hex file with the bootloader hex file and i flash the bootloader without having an application flashed on the device, what will happen ? would i be able to flash the application via SEGGER normally or must i have the application hex flashed before the flashing of the bootloader or mergehex with the bootloader ?

    If the application is not present, the bootloader will enter DFU mode. If you subsequently flash the application and this is the exact application hex that was used to generate the hex file, the app will be started. If the application has changes in any way, the bootloader will not be able to validate the application (as the CRC has changed), and the bootloader will enter DFU mode.

    p.s. 5. in the dfu examples, what's the difference between pca10040_uart to pca10040_uart_debug can both be used for production also can they be used for a PCB not an nrf52832DK ? 

    Both can be used for custom HW as well as for the DK. The debug version includes RTT logging, which increases the size of the bootloader. It is only usable from a debugger.

    Regarding using it for release you can do it, though it often does not make sense as you will typically not have RTT access in the field anyway. If you do it, you should do some adaptations. For instance, the error handler behaves differently depending on the build type:

    static void on_error(void)
{
    NRF_LOG_FINAL_FLUSH();

#if NRF_MODULE_ENABLED(NRF_LOG_BACKEND_RTT)
    // To allow the buffer to be flushed by the host.
    nrf_delay_ms(100);
#endif
#ifdef NRF_DFU_DEBUG_VERSION
    NRF_BREAKPOINT_COND;
#endif
    NVIC_SystemReset();
}

    Einar

  • 0 in reply to Einar Thorsrud
    Einar Thorsrud said:
    The application version and bootloader version needs to be incremented each time you make a new version. This is because the bootloader prevents downgrades and (optionally) also prevents upgrading to the same version. It is the number (integer) that matters here, the string is more for user-friendliness.

    i think i am missing something.. one of the reasons as i see it to create a bootloader setting file is so i can have a bootloader on my board and still be able to flash some changes to the application via SEGGER. since i am still on development stage it will take to long to do a whole DFU procedure every time i want to check a motor speed or any other small change.

    if i understood you correct then i will have to create a new bootloader setting file, merge it with bootloader, softdevice and application each time i want to make even a small change. so how does it save me time and effort 

    1. is there is some other simpler way to achieve that? or is there a way to do this automatically with SEGGER 

    2. when some products our out on the market, what if i want to return to a previous version if i found some problem with the new release, but the bootloader wont allow downgrading ?

    hope to read from you soon

    best regards

    Ziv

  • 0 in reply to ziv123

    Hi,

    ziv123 said:
    1. if i understand correctly, i don't always have to use the bl settings hex, but just when i want to flash it all together? or i can flash the bootloader, softdevice and app in one merged hex file without bl setting at all and it should work as well, correct ?

    Let me explain in more detail what the bootloader settings hex file is. The bootloader has a settings page, which is the last page in flash. That is used for storing the state of the system in a wide sense. Most importantly for this discussion, bootloader settings include a flag that indicates if an application is present or not and a checksum (or cryptographic hash or signature depending on configuration) of the application so that the bootloader can check it's integrity.

    When the bootloader runs at every boot it checks if it should enter DFU mode, based on a number of factors. One of these is that it will always enter DFU mode instead of try to start the application if there is no flag indicating that an application is present and/or the checksum of the application does not match the checksum in the settings page. So if you do not program a valid bootloader settings page the bootloader will always enter DFU mode instead of starting the application.

    Note that when upgrading via DFU, the bootloader will update the bootloader settings page, as it gets the required information from the DFU process. So the bootloader settings is only needed when you do initial programing from a debugger and not when you program via DFU. It is also not needed if you do not program the application but only bootloader and SoftDevice, and intend to DFU in the application later. In that case the settings page will be updated for you by the bootloader.

    ziv123 said:
     2. if i am not doing it in one file, then when i take an erased device, i first flash the softdevice hex, then the bootloader hex and then i can flash the app and it should work ?

    No. The bootloader will enter DFU mod then. You also need to flash the bootloader settings if you want the bootloader to start the application. (Note that tit is irrelevant if you merge the files or not when you program via a debugger).

    ziv123 said:
    3. if first i flash the softdevice and the app and then flash the bootloader then the app should work correct ?

    No. You also need to program the bootloader settings so that the bootloader can know that there is a valid app present and start it.

    ziv123 said:
    4. having a bootloader with bl setting and softdevice on the device enables me to flash the application via segger ide, or i need to change the bl setting with every change that i make to the app ?

    You do not need to change the BL settings if you upgrade via DFU as then the bootloader updated the bootloader settings for you as part of the process.. If you flash a different application form a debugger  you need to update the bootloader settings page and program that again. You can modify the bootloader to skip this check if you like though, by for instance making crc_on_valid_app_required() in <SDK>\components\libraries\bootloader\nrf_bootloader.c always return false.

    ziv123 said:
    5. when using segger ide to flash an app on an erased device, there is no need to flash the softdevice separately, so i guess it is doing it by itself, how does it work when wanting to use segger to flash app when a bootloader is on the device ?

    The example SES projects we provide include the SoftDevice as an additional load file, so it is programmed together with the application when you program from SES:

    SES will program the SoftDevice and application without any problem when you have a bootloader. But the bootloader cannot start the app so you will not be able to run it unless you program a valid settings page for every time you change the app, or alternatively modify the bootloader as I mentioned earlier in this post.

    ziv123 said:

    6. if i want to update only the softdevice (though i guess app will also require an update in that case) via dfu then in the packet generate command i put write: 

    " ... --application softdevice.hex --application-version 7.01 (in case of s132 v7.01) ... " ??

    sorry for being a little tidies but i am trying to understand it fully and be able to repeat and understand when things don't work as expected 

    No, you cannot provide a softdevice with the --application option. There is a separate option for providing a SoftDevice (--softdevice). Please see "nrfutil pkg generate --help" for more details about this. I recommend you also go though this tutorial if you have not done so allready.

    ziv123 said:
    does it mean something with the bootloader is not working as it should or is it something to do with the physical connection ?

    It means that UART communication is not working, which could have a number of explanations. It could be an issue with the physical connection, or it could be a mismatch of parameters (baud rate, flow control, etc.)

  • 0 in reply to Einar Thorsrud

    ok

    going back to basic since things don't work i i don't get why

    flashed the softdevice hex and the bootloader from this example

    \examples\dfu\secure_bootloader\pca10040_uart\ses

    (untouched, beside the micro ecc issue) 

    then generated a pkg and dfu it and all is well .. so far

    in my app when i get a dfu command i do this:

    case SYS_OP_MODE_DFU_INIT:
{
    NRF_POWER->GPREGRET = 0xB1;
    NVIC_SystemReset();
    break;
}

    then i try to dfu with a second generated pkg of the same app with only minor change (version change)

    it takes some time and then i get 

    File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\dfu\dfu_transport_serial.py", line 214, in open
    raise NordicSemiException("No ping response after opening COM port")
pc_ble_driver_py.exceptions.NordicSemiException: No ping response after opening COM port

    and after i get that the old app loads (i see it by the version in the sttus message from the app)

    what am i missing ? 

  • 0 in reply to ziv123

    Hi,

    It seems the UART communication between the PC (nrfutil) and nRF is not working properly for some reason, so we need to digg into that.

    • Are you using a DK or custom board?
      • If DK, which DK?
      • If custom board, which pins do you use for UART and have you configured the bootloader to use the correct pins? Do you use flow control?
    • Have you used a logic analyzer to check the data on the UART lines? Is there any data exchange at all?
  • 0 in reply to Einar Thorsrud

    i don't think its the uart 

    look at that:

    D:\Ziv\projects\Redent-Nova-FW>nrfutil dfu serial -pkg Redent_0.zip -p COM12 
  [####################################]  100%
Device programmed.

D:\Ziv\projects\Redent-Nova-FW>nrfutil dfu serial -pkg Redent_1.zip -p COM12 

Traceback (most recent call last):
  File "C:\Program Files (x86)\Python383\Scripts\nrfutil-script.py", line 11, in <module>
    load_entry_point('nrfutil==6.1.0', 'console_scripts', 'nrfutil')()
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 782, in main
    rv = self.invoke(ctx)
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\__main__.py", line 1055, in serial
    do_serial(package, port, connect_delay, flow_control, packet_receipt_notification, baud_rate, serial_number, True,
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\__main__.py", line 970, in do_serial
    dfu.dfu_send_images()
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\dfu\dfu.py", line 127, in dfu_send_images
    self._dfu_send_image(self.manifest.application)
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\dfu\dfu.py", line 88, in _dfu_send_image
    self.dfu_transport.open()
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\dfu\dfu_transport_serial.py", line 214, in open
    raise NordicSemiException("No ping response after opening COM port")
pc_ble_driver_py.exceptions.NordicSemiException: No ping response after opening COM port

D:\Ziv\projects\Redent-Nova-FW>

    you can see that when there is no application yet, just softdevice and bootloader then the dfu on serial works and i check the application it is working and i am communicating with the application on the same serial.. next i give the application this command 


    NRF_POWER->GPREGRET = 0xB1;
    NVIC_SystemReset();

    and then i close the comm on which i was communicating with the app so it will be free to preform the dfu

    and then i go to the terminal and try to dfu as can be seen above

    the generate pkg commands:

    nrfutil pkg generate --application Output\Pca10040_Debug\Exe\Redent_Nova.hex --application-version 1 --hw-version 52 --sd-req 0xCB --key-file bootloader\src\private.key Redent_1.zip
Zip created at Redent_1.zip


nrfutil pkg generate --application Output\Pca10040_Debug\Exe\Redent_Nova.hex --application-version 0 --hw-version 52 --sd-req 0xCB --key-file bootloader\src\private.key Redent_0.zip
Zip created at Redent_0.zip

  • 0 in reply to ziv123

    Hi,

    I see you use the _debug bootloader, so it would be very interesting to see the RTT log. That way we could see if the device enters DFU mode after  you write to GPREGRET and reset or not. Does it? If not, what state is the bootloader in, seen from the log?

    By the way, please provide full logs and contexts going forward so I get the full picture when trying to understand what is going on.

Reply
  • 0 in reply to ziv123

    Hi,

    I see you use the _debug bootloader, so it would be very interesting to see the RTT log. That way we could see if the device enters DFU mode after  you write to GPREGRET and reset or not. Does it? If not, what state is the bootloader in, seen from the log?

    By the way, please provide full logs and contexts going forward so I get the full picture when trying to understand what is going on.

Children
  • 0 in reply to Einar Thorsrud

    i am not using _debug bootloader

    what you might look at "Pca10040_Debug" is a configuration of the app itself

    <configuration
    Name="Debug"
    c_preprocessor_definitions="DEBUG;DEBUG_NRF"
    gcc_optimization_level="None"
    hidden="Yes" />
  <configuration
    Name="Pca10040"
    c_preprocessor_definitions="BOARD_PCA10040"
    hidden="Yes" />
  <configuration
    Name="RedentPCB"
    c_preprocessor_definitions="REDENT_NOVA_BOARD;BOARD_CUSTOM=REDENT_NOVA_BOARD"
    hidden="Yes" />

  <configuration
    Name="Pca10040_Release"
    inherited_configurations="Pca10040;Release" />
  <configuration
    Name="Pca10040_Debug"
    inherited_configurations="Pca10040;Debug" />

    but i can try to so the same with the debug bootloader.. what do i need to configure to get the full log ?

  • 0 in reply to ziv123

    You should definitely use the pca10040_uart_debug project in this case. That will be very useful. You do not need to do any configuration, just use the debug bootloader project instead of the non-debug project, and if you have made any changes in the "normal" bootloader, do the same in the _debug bootloader. Then simply use it. It has RTT logging enabled by default which will give a lot of information during boot and DFU upgrade.

  • 0 in reply to Einar Thorsrud

    for some reason also the first dfu does not work.. some issue with valisation, but lets say it will work.. like before, after i dfu once how can i enter the debug mode in the bootloader when entering to it after application initiates restart ? 

    also, when trying to change linker section placement (to match that in the non debug version, that works, i assume that was part of the error i got with first dfu)

    then i get this error on build:

    1> Generating linker script ‘secure_bootloader_uart_mbr_pca10040_debug.ld’
1> Linking secure_bootloader_uart_mbr_pca10040_debug.elf
1> C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 5.40c/gcc/arm-none-eabi/bin/ld: error: .rodata is too large to fit in FLASH memory segment
1> C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 5.40c/gcc/arm-none-eabi/bin/ld: error: .data is too large to fit in FLASH memory segment
Build failed

    the data is:

    linker_section_placement_macros="FLASH_PH_START=0x0;FLASH_PH_SIZE=0x80000;RAM_PH_START=0x20000000;RAM_PH_SIZE=0x10000;FLASH_START=0x78000;FLASH_SIZE=0x6000;RAM_START=0x20000008;RAM_SIZE=0xfff8"
      
linker_section_placements_segments="FLASH RX 0x0 0x80000;RAM RWX 0x20000000 0x10000;uicr_bootloader_start_address RX 0x10001014 0x4;bootloader_settings_page RX 0x0007F000 0x1000;uicr_mbr_params_page RX 0x10001018 0x4;mbr_params_page RX 0x0007E000 0x1000"

    my app is:

    linker_section_placement_macros="FLASH_PH_START=0x0;FLASH_PH_SIZE=0x80000;RAM_PH_START=0x20000000;RAM_PH_SIZE=0x10000;FLASH_START=0x26000;FLASH_SIZE=0x4a000;RAM_START=0x20001db8;RAM_SIZE=0xe248"
      linker_section_placements_segments="FLASH RX 0x0 0x80000;RAM RWX 0x20000000 0x10000"

  • 0 in reply to ziv123

    Hi,

    ziv123 said:
    for some reason also the first dfu does not work..

    I forgot to specify that you need to use your own public key also for debug builds if you do not allready in examples\dfu\dfu_public_key.c, so that could be the problem if validation fails.

    ziv123 said:
    like before, after i dfu once how can i enter the debug mode in the bootloader when entering to it after application initiates restart ? 

    That would be in the exact same way. The debug bootloader is essentially the same just that it has RTT logging.

    ziv123 said:

    also, when trying to change linker section placement (to match that in the non debug version, that works, i assume that was part of the error i got with first dfu)

    then i get this error on build:

    That is expected. The debug bootloader is much larger, so it has to start lower. There is no need to modify this. Note that this means that you cannot DFU in a debug bootloader when you have a release bootloader from before, as the bootloader start address cannot change. Bu there we just want to use the debug bootloader now to see what happens so that is no problem.

    ziv123 said:
    my app is:

    It makes sense to reduce the specified size of the app so that the app start address + size is less than the bootloader start address. In practice it may not matter much as the linker will typically place things at low addresses first so I would perhaps not bother for this simple test.

  • 0 in reply to Einar Thorsrud
    Einar Thorsrud said:
    That is expected. The debug bootloader is much larger, so it has to start lower. There is no need to modify this.

    in the memory layout in the below link, the bootloader should be between the address 0x78000 - 0x7E000

    in the debug example the memory starts at 0x64000 and its size is 0x1a000 which does not fit the memory range from datasheet and actually takes place of the application memory range, how come ???

    https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v16.0.0%2Flib_bootloader.html&anchor=lib_bootloader_memory

    Einar Thorsrud said:
    Note that this means that you cannot DFU in a debug bootloader when you have a release bootloader from before

    i always erase device before flashing with a new bootloader and off course i will not flash a different bootloader each time without clearing the previous

    Einar Thorsrud said:
    I forgot to specify that you need to use your own public key also for debug builds if you do not allready in examples\dfu\dfu_public_key.c, so that could be the problem if validation fails.

    i have created my own public key (i think if i would not it would also not work for the release bootloader)

    if i have to generate another key, for the debug bootloader, which is different from the release bootloader please clarify on that matter.

    Einar Thorsrud said:
    That would be in the exact same way. The debug bootloader is essentially the same just that it has RTT logging.

    i feel that we might have some misunderstandings by your answer to my question, my question was that once i flash the debug bootloader and preform one successful dfu (which i was expecting to work like in the release bootloader), then i want to debug the second dfu from the application that failed, so i am not sure it is possible to run the bootloader via the debugger and stay in debug mode of bootloader after application is running and when application is resetting the system ?

    after changing the app size so it will work though all the above mentioned mismatching, which i would still like to understand,  there is the log .. the app does not seem to work , it looks to me like it activates and then can't find it .. here is the log :

    <debug> nrf_dfu_flash: Flash write success: addr=0x0004A9C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AAC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AAC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ABC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ABC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ACC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ACC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ADC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ADC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AEC0, src=0ding 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AFC0, src=0x200016F8, len=64 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AFC0, 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:73728, CRC:0x4E1CCAD9
<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 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (data)
<debug> nrf_dfu_serial: Sending Response: [0x4, 0x1]
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (data)
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0004B000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0004B000, pending 0
<debug> nrf_dfu_req_handler: Creating object with size: 3632. Offset: 0x00012000, CRC: 0x4E1CCAD9
<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 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B000, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B000, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B040, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B040, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B080, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B080, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B0C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B0C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B100, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B100, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B140, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B140, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B180, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B180, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B1C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B1C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B200, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B200, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B240, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B240, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B280, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B280, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B2C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B2C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B300, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B300, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B340, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B340, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B380, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B380, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B3C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B3C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B400, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B400, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B440, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B440, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B480, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B480, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B4C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B4C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B500, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B500, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B540, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B540, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B580, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B580, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B5C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B5C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B600, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B600, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B640, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B640, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B680, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B680, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B6C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B6C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B700, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B700, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B740, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B740, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B780, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B780, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B7C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B7C0, pending 0
0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B800, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B800, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B840, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B880, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B8C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B8C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B900, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B940, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B980, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B9C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B9C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BAC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BAC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BBC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BBC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BCC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BCC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BDC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BDC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BE00, src=0x2000177C, len=48 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BE00, 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:77360, CRC:0x9224D8F7
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<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 0x7E000.
<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
<info> nrf_bootloader_wdt: WDT is not enabled
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x00026000, len=8 pages), queue usage: 0
<debug> nrf_dfu_flash: Flash erase success: addr=0x00026000, pending 0
<debug> app: Copying 0x39000 to 0x26000, size: 0x8000
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00026000, src=0x00039000, len=32768 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00026000, pending 0
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x0007F000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007F000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0007F000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007F000, src=0x20001C60, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0007F000, pending 0
<info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x0007E000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007E000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0007E000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007E000, src=0x200018E0, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0007E000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0002E000, len=8 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0002E000, pending 0
<debug> app: Copying 0x41000 to 0x2E000, size: 0x8000
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0002E000, src=0x00041000, len=32768 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0002E000, pending 0
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x0007F000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007F000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0007F000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007F000, src=0x20001C60, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0007F000, pending 0
<info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x0007E000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007E000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0007E000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007E000, src=0x200018E0, len=896 bytes), queue usage: 1
<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 0x7E000.
<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.
<debug> app: App is valid
<debug> app: DFU mode requested via button.
<info> nrf_bootloader_wdt: WDT is not enabled
<debug> app: in weak nrf_dfu_init_user
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<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

    if i try to dfu again though the app does not work this time which is a difference, then it seems the bootloader flashed the new app after the first one which is very unclear why it would do it, also the softdevice (becoming green like application) shifts from address 0x1000 to 0xff8 which is out of its written range .. what is that about ????

    this is the log of the second dfu:

    <debug> nrf_dfu_flash: Flash write success: addr=0x0004A800, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A840, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A880, src=0x2000177C, len=64 bytes), queue usage: 1
ding 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A8C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A8C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A900, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A940, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A980, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A9C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A9C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA80, 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=0x0004AAC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AAC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ABC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ABC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ACC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ACC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ADC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ADC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AEC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AEC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AFC0, src=0x200016F8, len=64 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AFC0, 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:73728, CRC:0xE36519E8
<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 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (data)
<debug> nrf_dfu_serial: Sending Response: [0x4, 0x1]
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (data)
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0004B000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0004B000, pending 0
<debug> nrf_dfu_req_handler: Creating object with size: 3632. Offset: 0x00012000, CRC: 0xE36519E8
<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 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B000, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B000, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B040, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B040, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B080, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B080, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B0C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B0C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B100, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B100, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B140, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B140, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B180, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B180, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B1C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B1C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B200, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B200, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B240, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B240, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B280, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B280, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B2C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B2C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B300, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B300, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B340, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B340, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B380, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B380, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B3C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B3C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B400, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B400, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B440, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B440, pending 0
0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B480, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B480, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B4C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B4C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B500, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B500, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B540, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B540, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B580, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B580, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B5C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B5C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B600, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B600, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B640, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B640, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B680, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B680, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B6C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B6C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B700, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B700, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B740, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B740, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B780, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B780, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B7C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B7C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B800, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B800, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B840, pending 0
0x1
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B880, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B8C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B8C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B900, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B940, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B980, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B9C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B9C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BAC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BAC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BBC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BBC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BCC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BCC0, pending 0
0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BDC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BDC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BE00, src=0x2000177C, len=48 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BE00, 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:77360, CRC:0x72AA4C29
<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 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (data)
<debug> nrf_dfu_req_handler: Whole firmware image receive<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 0x7E000.
<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
<info> nrf_bootloader_wdt:<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 0x7E000.
<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.
<debug> app: App is valid
<debug> app: DFU mode requested via button.
<info> nrf_bootloader_wdt: WDT is not enabled
<debug> app: in weak nrf_dfu_init_user
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<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

    eventually it might just end up to some sdk_config configurations but so far nothing makes sense.. hope you will help me understand and learn

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