One of the biggest fears of embedded systems developers are stack overflows. FreeRTOS includes a cool feature to monitor and catch task stack overflows. But what about the MSP (Main Stack Pointer) on ARM, or the interrupt stack? What if not using an RTOS and running a bare-metal application?

There is a simple way monitoring stack usage at runtime, and for this I want to share the routines and what is now available inside the McuArm module.