nrf52810 not enough flash

RE: nrf52810 not enough flash

hsc — Wed, 20 May 2020 14:13:31 GMT

thank you very much，I'll try

RE: nrf52810 not enough flash

Einar Thorsrud — Wed, 20 May 2020 14:08:57 GMT

Hi,

[quote user="hsc"]Do Android and IOS apps need to be modified?[/quote]

I have not tested this, but I would assume that the nRF Connect Android app would handle a non-signed image, as it is all "encapsulated" in the init packet.

[quote user="hsc"]Do you need to modify the way to generate the firmware upgrade package[/quote]

No, just use the same nrfutil command as you would normally do, but omit to specify a private key with --key-file. When that option is missing the package is generated as normal, but not signed.

RE: nrf52810 not enough flash

hsc — Wed, 20 May 2020 13:33:08 GMT

Do Android and IOS apps need to be modified?

Do you need to modify the way to generate the firmware upgrade package

RE: nrf52810 not enough flash

Einar Thorsrud — Wed, 20 May 2020 13:20:26 GMT

Hi,

I am not sure how much flash you will save by removing the signature verification code, but it will definitely be some. You can start by making signature_required() in components\libraries\bootloader\dfu\nrf_dfu_validation.c always return false, and remove all signature verification related and nrf_crypto related code.