DFU

[zwf]

I want to make a burn file, but I get an error when merging hex files. ： “The hex files cannot be merged since there are conflicts.”，When I cancel the compilation of the nrf_dfu_settings.c, the resulting hex can be merged smoothly. So what is the reason? What is the use of this  nrf_dfu_settings.c ？

sdk 12.2

Thanks！！！

[tesc]

Hi,

nrf_dfu_settings.c is part of the bootloader, and it is needed for the bootloader to function correctly.

What hex files are you merging?

Regards,
Terje

[zwf]

CMD ：

nrfutil settings generate --family NRF52 --application app.hex --application-version 1 --bootloader-version 1 --bl-settings-version 1 bootloader_settings.hex
mergehex --merge bootloader.hex softdevice.hex --output production_final1.hex
mergehex --merge production_final1.hex app.hex --output production_final2.hex
mergehex --merge production_final2.hex bootloader_settings.hex --output final.hex

LOGO ：

nrfutil settings generate --family NRF52 --application C003S_nRF52_PG000.hex --application-version 1 --bootloader-version 1 --bl-settings-version 1 bootloader_settings.hex

Generated Bootloader DFU settings .hex file and stored it in: bootloader_settings.hex

Bootloader DFU Settings:
* File:                 bootloader_settings.hex
* Family:               nRF52
* CRC:                  0xA74D6B78
* Settings Version:     0x00000001 (1)
* App Version:          0x00000001 (1)
* Bootloader Version:   0x00000001 (1)
* Bank Layout:          0x00000000
* Current Bank:         0x00000000
* Application Size:     0x00018264 (98916 bytes)
* Application CRC:      0xB07BABE6
* Bank0 Bank Code:      0x00000001


mergehex --merge bootloader.hex softdevice.hex --output production_final1.hex
Parsing input hex files.
Merging files.
Storing merged file.

mergehex --merge production_final1.hex app.hex --output production_final2.hex
Parsing input hex files.
Merging files.
ERROR: The hex files cannot be merged since there are conflicts.

mergehex --merge production_final2.hex bootloader_settings.hex --output C003S_NOBTN_DFU_PG000_V0.0.0.hex
Parsing input hex files.
ERROR: One of the files to merge cannot be found.