Measuring stack depth of function cause hardfault, inside the first for loop when ii > 4 the IMPRECISERR bit is set in the Configurable Fault Status Register (CFSR)

[MOhamed_Mehery]

[KnarfB]

> inside for loop when i > 4

which loop? which i?

What type has stack_pointer? You cast it to uint8_t in the second loop, but not in the first?

ST uses the gcc idiom

register char * stack_ptr asm("sp");

to get the stack pointer

.

hth

KnarfB

[MOhamed_Mehery]

I made edit

[KnarfB]

what type? What + 4 does depends on the type (size).

[MOhamed_Mehery]

unit32_t, I guess I'm increament the pointer in wrong direction

[KnarfB · Accepted solution]

the stack goes down, not up?

[MOhamed_Mehery]

So, I have to decreament the pointer, not increamenting it