Run MQTT_simple sample in secure environment

[AscherA]

Hello everyone,

I am new to the Zephyr RTOS and this is my first project with the nrf9160, although i already worked with the nrf52832. 

I am using a nrf9160_DK and for simplification in the project I would run everything in the secure environment. 

Unfortunately I encountered a problem in this process because the MQTT_simple sample given in the nRF SDK v1.7.1 is configured to run only in the none-secure-environment and therefore also includes the Secure Partition Manager. 

Up until now i was not able to change the sample to work in the secure environment, because of this I wanted to ask if it is even possible accessing the Modem partition via the secure-environment and if possible which changes would be necessary to port the MQTT-simple sample  to the secure environment.

[Hakon]

Hello,

I wanted to ask if it is even possible accessing the Modem partition via the secure-environment and if possible which changes would be necessary to port the MQTT-simple sample  to the secure environment.

No, it's not possible. And it is also not the point of the SPM. It is used to protect against unauthorized code running on the device.

[AscherA]

Thank you Hakon,

In this case i will have to implement a none-secure partition and implement the MQTT software there.

Best regards

Andreas