NRF9160: TF-M and FOTA (firmware update)

[Andrey Dodonov]

Hi,

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.1.0/nrf/ug_tfm.html#limitations states that "Firmware Update Services" are not supported.

Does it mean that in case if TF-M is used e.g. firmware over-the-air update will not be possible? 

[Håkon Alseth]

Hi,

 

Does it mean that in case if TF-M is used e.g. firmware over-the-air update will not be possible? 

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