RE: Conflict error with mergehex command

youssefchei — Thu, 25 Apr 2019 14:12:42 GMT

Hi Bjorn

The nrfutil version I'm using is V:5.0.0

According to nrfutil web site: https://libraries.io/pypi/nrfutil

"In order to generate firmware images, compatible with nRF SDK 12.0 to nRF SDK 15.0, use --no-backup switch during the generation of DFU settings."

So , the new generating setting command is :

nrfutil settings generate --family NRF51 --application APP\nRF51_x_x_x.hex --application-version 111 --bootloader-version 10 --bl-settings-version 1 BL_Settings\BL_settings.hex --no-backup

When the new command is executing, the orange part in the BL_settings.hex is no longer there and the merge command is executed with success

--> --no-backup solve the problem

Best regards

Youssef

RE: Conflict error with mergehex command

bjorn-spockeli — Thu, 25 Apr 2019 08:36:13 GMT

HI Yossef,

which version of nrfutil are you using? You need to make sure that you're using version between 1.5.0 and 4.0.0

The DFU package format transitioned from legacy to modern in SDK 12.0. Depending on the SDK version that you are using you will need to select a release of this tool compatible with it:
- Version 0.5.2 generates legacy firmware packages compatible with nRF SDK 11.0 and older
- Versions 1.5.0 and later generate modern firmware packages compatible with nRF SDK 12.0 and newer
- Versions 4.0.0 and later generate modern firmware packages compatible with nRF SDK 15.1 and newer
- Versions 5.0.0 and later generate modern firmware packages compatible with nRF SDK 15.3 and newer

Also there is a known issue with the MBR params page being included in the application, which is not needed.

https://devzone.nordicsemi.com/f/nordic-q-a/17358/sdk-12-bootloader-erased-after-programming/66735#66735