DFU CRC Check Clarification

[snoopy20]

Hi, quick question.

I do not require signed checking but do require CRC check of the app and so have set NRF_BL_APP_SIGNATURE_CHECK_REQUIRED = 0

Now when I generate the DFU without --app-boot-validation VALIDATE_GENERATED_CRC, it works.

If I generate the DFU with --app-boot-validation VALIDATE_GENERATED_CRC, it works.

So I can't tell whether the DFU is generating a CRC automatically when it decrypts the payload successfully (and so  --app-boot-validation VALIDATE_GENERATED_CRC is pointless) or whether CRC checking isn't occurring on boot.

Cheers!

Andrew

[Sigurd Hellesvik]

Hi,

Could it be that VALIDATE_GENERATED_CRC is the default validation type?

See https://github.com/NordicSemiconductor/pc-nrfutil/blob/16cb5a3d352bcc7a3ddbbf541426e3cca0f34671/nordicsemi/__main__.py#L204

Regards,
Sigurd Hellesvik

[snoopy20]

Surely could be. :)