Is there a way to view the actually used stack and heap size in runtime?

[cpeng]

Hi Devzone:

I would like to shrink heap and stack size to save some RAM space.

I can see in the memory usage page of currently allocated heap and stack:

As you can see it's allocated with 8KB for heap and stack respectively.

If I want to shrink the size, I need to determine how much heap and stack are actually used.

How to view the actually used stack and heap in runtime?

Thanks.

[Vidar Berg]

Hello,

Heap is generally not used in our SDK examples, you can probably remove this section unless you are using malloc/free in your code. Stack usage can be a bit harder to estimate. You may want to look at the wiki page here if you want to perform a static stack usage analysis: https://wiki.segger.com/Static_code_analysis_in_Embedded_Studio. You can also use our Stack guard library to detect stack overflows at runtime (remember to enable MPU before enabling this library like in the perhiperal CLI example).

Best regards,

Vidar