DFU using external flash(NRF7002DK) when TFM is enabled

[Arjun-Prasad]

Hi,

I followed the instructions for enabling mcuboot and OTA using DFU target APIs using the instructions here -> https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-9-bootloaders-and-dfu-fota/topic/exercise-3-dfu-with-external-flash/

But I could only manage to build it and verify it for nrf7002dk/nrf5340/cpuapp target. I am not able to compile it for nrf7002dk/nrf5340/cpuapp/ns. I see the following error

error: #error "TF-M non-secure start address is not aligned to SPU/MPC HW requirements"
29 | #error "TF-M non-secure start address is not aligned to SPU/MPC HW requirements"

We are using the latest sdk v3.1.1 with nrf7002dk dev kit and https client sample as the base. Could you please give us an example of how to use mcuboot with tfm enabled using external flash as secondary slot?

Thanks & Best Regards,

Arjun

[Amanda Hsieh]

Hi, 

Try to modify CONFIG_PM_PARTITION_SIZE_TFM to 0x1fe00 in the nrf7002dk_nrf5340_cpuapp_ns.conf. 

Regards,
Amanda H.