Cortex M33 Return to Non Secure Thread from Secure SVC

Hello, Is there any limitation on returning back from Secure SVC Handler mode to Non-Secure Thread Mode? The EXC_RETURN value should be 0xFFFFFFBC (Non-Secure, PSP, Thread Mode) after the exit Secure...
Cortex M33 Return to Non Secure Thread from Secure SVC

Hello, Is there any limitation on returning back from Secure SVC Handler mode to Non-Secure Thread Mode? The EXC_RETURN value should be 0xFFFFFFBC (Non-Secure, PSP, Thread Mode) after the exit Secure...
Cortex M33 non secure wifi

Hello, I am using an NXP LPC55S69 with a Cortex M33 and Arm trustzone. The application I try to develop does some calculations in secure world and then pass the result to non-secure world where the...
Cortex M33 non secure wifi

Hello, I am using an NXP LPC55S69 with a Cortex M33 and Arm trustzone. The application I try to develop does some calculations in secure world and then pass the result to non-secure world where the...
cpsid from non-secure triggers SecureFault

Hello, I am using TrustZone together with Trusted Firmware-M and Zephyr on the AN521 board in QEMU. After setting SAU and MPC memory regions, during Zephyr setup, "cpsid i" is called using inline assembly...