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

 

[Einar Thorsrud]

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

[ziv123]

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

[Einar Thorsrud]

Hi,

ziv123 said:

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 ???

This is just an example of what it typically looks like in the default configuration. The debug bootloader is larger and therefor needs to start lower. It does not matter as the MBR knows the bootloader start address because it is written to a specific address (in the end of the MBR page or UICR depending on SDK version, but principle is the same). 

ziv123 said:

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

The dfu_public_key.c separates between the keys as the DEBUG bootloader by default use the public key for the key that signed the test images. In your case you must ensure to use your own key in both cases. Simply remove the whole #if/else/endif handling for DEBUG in that file and just provide your key.

ziv123 said:

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

You do not need more than one keypair, it only confuses. Just make sure you use your public key in both build variants as explained above.

ziv123 said:

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 ?

This is not a problem. The debug session is not terminated by a soft reset. Just make sure you don not use RTT logging in the application, as that can confuse the RTT viewer.

ziv123 said:

it looks to me like it activates and then can't find it .. here is the log :

Reading the log you see this closed to the end "DFU mode requested via button.", and that leads naturally to "DFU mode requested via button.". So even if DFU is performed, the bootloader enters DFU mode because a pin is configured as a DFU enter method and that pin is asserted. If you do not want to use this as a DFU enter method, you should set NRF_BL_DFU_ENTER_METHOD_BUTTON in sdk_config.h for the bootloader you now use to 0. That way this pin will not trigger DFU mode.

ziv123 said:

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 ????

You cannot put any emphasis on the graphical representation in nRF Connect Programmer. That is unfortunately more confusing than sensible. The colored area has data and the other does not. But the splits and types it assigns is based on a very simplistic approach that typically is incorrect. Also, where it looks like two apps it is just because there happen to be a sequence of ff's in there, and the nRF Connect Programmer will interpret that as two images. But it is not the case.

[ziv123]

ok so the config of " NRF_BL_DFU_ENTER_METHOD_BUTTON  " to 0 solved the first dfu issue, and the app works after the first one

just to be clear, i erased the device, then flashed the softdevice then run the bootloader in debug mode and dfu the app .. the app then worked and i sent it the command to go to set the register flag and restart and then i tried to dfu another version of the app and i got this like before:

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

the log for the first and second dfu is this:

<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000376C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000376C0, 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=0x00037700, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037700, 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=0x00037740, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037740, 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)
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=0x000377C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000377C0, 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=0x00037800, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037800, 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=0x00037840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037840, 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=0x00037880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037880, 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=0x000378C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000378C0, 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=0x00037900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037900, 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=0x00037940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037940, 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=0x00037980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037980, 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)
ding 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=0x00037A00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037A00, 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=0x00037A40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037A40, 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=0x00037A80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037A80, 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=0x00037AC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037AC0, 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=0x00037B00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037B00, 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=0x00037B40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037B40, 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=0x00037B80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037B80, 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=0x00037BC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037BC0, 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=0x00037C00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037C00, 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=0x00037C40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037C40, 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=0x00037C80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037C80, 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=0x00037CC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037CC0, 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=0x00037D00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037D00, 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=0x00037D40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037D40, 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=0x00037D80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037D80, 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=0x00037DC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037DC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037E00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037E00, 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=0x00037E40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037E40, 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=0x00037E80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037E80, 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=0x00037EC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037EC0, 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=0x00037F00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037F00, 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=0x00037F40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037F40, 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=0x00037F80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037F80, 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=0x00037FC0, src=0x200016F8, len=64 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_flash: Flash write success: addr=0x00037FC0, 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=0x0x00038000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x00038000, 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=0x00038000, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038000, 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=0x00038040, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038040, 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=0x00038080, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038080, 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=0x000380C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000380C0, 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=0x00038100, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038100, 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=0x00038140, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038140, 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=0x00038180, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038180, 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=0x000381C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000381C0, 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=0x00038200, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038200, 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=0x00038240, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038240, 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=0x00038280, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038280, 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=0x000382C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000382C0, 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=0x00038300, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038300, 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=0x00038340, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038340, 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=0x00038380, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038380, 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=0x000383C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000383C0, 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=0x00038400, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038400, 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=0x00038440, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038440, 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=0x00038480, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038480, 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=0x000384C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000384C0, 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=0x00038500, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038500, 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=0x00038540, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038540, 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=0x00038580, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038580, 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=0x000385C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000385C0, 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=0x00038600, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038600, 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=0x00038640, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038640, 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=0x00038680, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038680, 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=0x000386C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000386C0, 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=0x00038700, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038700, pending 0
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=0x00038740, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038740, 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=0x00038780, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038780, 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=0x000387C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000387C0, 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=0x00038800, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038800, 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=0x00038840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038840, 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=0x00038880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038880, 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=0x000388C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000388C0, 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=0x00038900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038900, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038940, 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=0x00038980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038980, 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=0x000389C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000389C0, 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=0x00038A00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038A00, 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=0x00038A40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038A40, 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=0x00038A80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038A80, 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=0x00038AC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038AC0, 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=0x00038B00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038B00, 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=0x00038B40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038B40, 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=0x00038B80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038B80, 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=0x00038BC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038BC0, 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=0x00038C00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038C00, 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=0x00038C40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038C40, 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=0x00038C80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038C80, 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=0x00038CC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038CC0, 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=0x00038D00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038D00, 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=0x00038D40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038D40, 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=0x00038D80, 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=0x00038DC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038DC0, 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=0x00038E00, src=0x2000177C, len=48 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_flash: Flash write success: addr=0x00038E00, 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 setting<info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<

hope this log will help to identify the problem

p.s. afte sometime the app first app is running again though dfu did not finish successfully 

[Einar Thorsrud]

Hi, 

ziv123 said:

ok so the config of " NRF_BL_DFU_ENTER_METHOD_BUTTON  " to 0 solved the first dfu issue, and the app works after the first one

Good to hear.

ziv123 said:

the log for the first and second dfu is this:

The log does not go far enough back, only start in the middle of the second DFU. Perhaps  Can you make a log that covers everything as intended? (sometimes it is easier to use the Logging feature of the RTT viewer if the amount of data becomes too much:

[ziv123]

the dfu in the log that you see is of the first dfu

there is nothing in the log regarding second dfu

after i send the application the commend to set the register and restart

it halts at Unknown function at address 0x275FC which is actually not in the bootloader address scope:

when i press F5 then the application returns to run.. if i send the command for dfu again the jlink informs me that the register is already set

any ideas ?

i think the problem is this: i have tried some things but what i get after the command to start dfu from my application which is that to remind,

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

i am stopped by a vector catch 

it is the same if i run only the application in debug mode without the bootloader flashed and command the app to start the dfu 

or if i debug in the bootlader after flashed and give the dfud application and then commend the running application to start the dfu i don't even send the next nrf defu serial command from terminal .. so i think the problem has something to do with the app or the command to the register 

what do you say ?

[Einar Thorsrud]

Hi,

I did not think about this before as you do not use the SoftDevice for serial DFU. However, if the SoftDevice is enabled when you call this code snippet:

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

that will not work. The reason is that writing to GPREGRET directly is not allowed. You need to write via the SoftDevice API instead when that is enabled, using sd_power_gpregret_set(). 

[ziv123]

ok .. maybe that will explain that i found out that i get asserted before even reaching the bootloader 

the address 0x275FC is the assertion of NRF_BREACK_COND or something like that which i compare to the blue screen of death.. any way i will try to change and see how it goes

[Einar Thorsrud]

Yes, you will get a SoftDevice fault with reason NRF_FAULT_ID_APP_MEMACC in this case. (A god tip is to enable logging when testing the app as well. If you tested the app with debug logging enabled you should have seen "SOFTDEVICE: INVALID MEMORY ACCESS" in the log.)

[ziv123]

still does not work for the second time though no nothing crashes and i do get into the bootloader

here is the log

<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037880, 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=0x000378C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000378C0, 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=0x00037900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037900, 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=0x00037940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037940, 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=0x00037980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037980, 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=0x000379C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000379C0, 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=0x00037A00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037A00, 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=0x00037A40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037A40, pending 0
0x1
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037A80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037A80, 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=0x00037AC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037AC0, 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=0x00037B00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037B00, 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=0x00037B40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037B40, 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=0x00037B80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037B80, 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=0x00037BC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037BC0, 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=0x00037C00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037C00, 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=0x00037C40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037C40, 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=0x00037C80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037C80, 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)
x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037CC0, 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=0x00037D00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037D00, 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=0x00037D40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037D40, 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=0x00037D80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037D80, 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=0x00037DC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037DC0, 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=0x00037E00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037E00, 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=0x00037E40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037E40, 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=0x00037E80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037E80, 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=0x00037EC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037EC0, 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=0x00037F00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037F00, 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=0x00037F40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037F40, 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=0x00037F80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037F80, 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=0x00037FC0, src=0x200016F8, len=64 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_flash: Flash write success: addr=0x00037FC0, 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:0x9A18F8FD
<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=0x0x00038000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x00038000, pending 0
<debug> nrf_dfu_req_handler: Creating object with size: 3632. Offset: 0x00012000, CRC: 0x9A18F8FD
<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=0x00038000, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038000, 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=0x00038040, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038040, 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=0x00038080, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038080, 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=0x000380C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000380C0, 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=0x00038100, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038100, 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=0x00038140, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038140, 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=0x00038180, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038180, 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=0x000381C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000381C0, 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=0x00038200, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038200, 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=0x00038240, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038240, 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=0x00038280, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038280, 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=0x000382C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000382C0, 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=0x00038300, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038300, 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=0x00038340, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038340, 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=0x00038380, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038380, 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=0x000383C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000383C0, 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=0x00038400, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038400, 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=0x00038440, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038440, 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=0x00038480, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038480, 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=0x000384C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000384C0, 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=0x00038500, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038500, 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=0x00038540, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038540, 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=0x00038580, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038580, 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=0x000385C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000385C0, 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=0x00038600, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038600, 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=0x00038640, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038640, 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=0x00038680, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038680, 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=0x000386C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000386C0, 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=0x00038700, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038700, 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=0x00038740, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038740, 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=0x00038780, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038780, pending 0
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=0x000387C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000387C0, 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=0x00038800, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038800, 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=0x00038840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038840, 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=0x00038880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038880, 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=0x000388C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000388C0, 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=0x00038900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038900, 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=0x00038940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038940, 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=0x00038980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038980, 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=0x000389C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000389C0, 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=0x00038A00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038A00, 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=0x00038A40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038A40, 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=0x00038A80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038A80, 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=0x00038AC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038AC0, 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=0x00038B00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038B00, 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=0x00038B40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038B40, 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=0x00038B80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038B80, 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=0x00038BC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038BC0, 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=0x00038C00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038C00, 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=0x00038C40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038C40, 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=0x00038C80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038C80, 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=0x00038CC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038CC0, 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=0x00038D00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038D00, 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=0x00038D40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038D40, 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=0x00038D80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038D80, 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=0x00038DC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038DC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
a)
x2000177C, len=48 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_flash: Flash write success: addr=0x00038E00, 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:0x6783725B
<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 received. Postvalidating.
<debug> nrf_dfu_validation: Hash verification. start address: 0x26000, size: 0x12E30
<debug> nrf_dfu_validation: Invalidating old application in bank 0.
<debug> nrf_dfu_serial: Sending Response: [0x4, 0x1]
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x0007F000
<debug> nrf_dfu_flash: nrf_<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 sou<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.
<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 GPREGRET.
<info> nrf_bootloader_wdt: WDT enabled CRV:491520 ticks
<info> nrf_bootloader_wdt: Starting a timer (488320 ticks) for feeding watchdog.
<debug> app: timer_activate (0x20000034)
<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
<info> app: Inside main
<debug> app: In nr

 

[Einar Thorsrud]

Hi,

After "Initializing nrf_fstorage_nvmc backend." the next line is "Enter main loop" which is the first line that is logged by the bootloader. So apparently here has been a reset for some reason. There is nothing in the log indicating why, though. Do you have a watchdog active or could it be another reason for the reset?

[ziv123]

the app has a watch dog but i thought that if i reset the app then the watchdog is gone .. or do i need to stop the watchdog before the soft reset before going to dfu ?

maybe bootloader has a watchdog ?