RE: NRF9160: TF-M and FOTA (firmware update)

Håkon Alseth — Mon, 24 Oct 2022 12:44:00 GMT

Hi,

[quote user=""]Does it mean that in case if TF-M is used e.g. firmware over-the-air update will not be possible? [/quote]

No, DFU will be possible, just not with the TF-M's "Firmware update services" feature.

We handle firmware upgrade in a bit of a different fashion, compared to how TF-M offers it.

What we do is that we take the "mcuboot primary" and replace this. Within this image, you have the secure and non-secure parts, ie. TF-M + your application.

Kind regards,

Håkon