https://devzone.nordicsemi.com/f/nordic-q-a/45490/stack-violation-stack-pointer-outside-stack-areaHi, i get hardfault for some reason. This is RTT output: and this is the output of GDB: and backtrace gives this: is there a nice way to find out where the hardfault happend and what could cause it? I am using nrf52840 and SDK 15.2 en-USTelligent Community 13Thu, 28 Mar 2019 15:29:49 GMThttps://devzone.nordicsemi.com/thread/179010?ContentTypeID=1Thu, 28 Mar 2019 15:29:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e068da8e-b444-48c9-b899-638ddcf204b2Cyril<p>Hello,<br /><br />p_stack_address = 0 which might be due to the&nbsp;<span>__StackTop and&nbsp;</span><span>__StackLimit definitions.<br />Take a look at hardfault_handler_gcc.c which calls&nbsp;</span>HardFault_c_handler. The parameter to&nbsp;HardFault_c_handler is set to 0 if the SP is not located into the Stack limit.&nbsp;<br />I would advise setting&nbsp;__STACK_SIZE in your Makefile (or increasing to the max possible value it if already defined) to &quot;allocate&quot; a larger size than the default one which is 2048.&nbsp;<br /><br /></p> <p>Then, you&#39;ll be able to get the PC where the hardfault occured in&nbsp;HardFault_c_handler using ((<span>HardFault_stack_t </span>*)p_stack_address)-&gt;<span>pc.<br /><br />Good luck</span></p><div style="clear:both;"></div>