Hi
Sorry, there is no dedicated HW feature that would monitor the stack.
I recommend you to take a look at the discussion in Failure reaction in case of Stack overflow or underflow - S32K1
Safety manual for S32K1 suggest to use DWT. There are SW examples in the above discussion.
Safety manual for S32K3 does not explicitly talk about stack monitoring but the same method could be used.
Another option is to use MPU(memory protection unit) when you can configure small area bellow the stack as write-protected, so an exception is triggered in case of underflow. The MCU then detects a MemManage Fault exception when the stack overflows.
Also, the application can also monitor the stack pointer by reading it.
Best Regards,
Robin
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