Hey,
after playing around with the nRF9160 DK and its TrustZone features i want to share my blog post:
https://www.lobaro.com/using-the-armv8-m-trustzone-with-gcc/
This may be useful to others who also want to know the internals of the nRF9160 Cortex-M33 memory separation features.
Any comments are appreciated.
Greetings
Theo