https://devzone.nordicsemi.com/f/nordic-q-a/51435/implementing-application-level-z_sysfatalerrorhandlerHi, I&#39;d like to implement my own application level z_SysFatalErrorHandler so have declared it in main.c and removed the __weak qualifier, however when I force a fault it always ends up in the original one in sys_fatal_error_handler.c. Any pointersen-USTelligent Community 13Fri, 30 Aug 2019 03:14:48 GMThttps://devzone.nordicsemi.com/thread/206967?ContentTypeID=1Fri, 30 Aug 2019 03:14:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:264e7586-3f8b-456b-a424-6f7001a30809GJSea<p>Thanks, I managed to get this to work after all, not sure why my copy paste of the function declaration didn&#39;t work before.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/206401?ContentTypeID=1Tue, 27 Aug 2019 13:15:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4b7ee6c5-be4b-42c9-92cf-f31cecdb8485Didrik Rokhaug<p>Hi.</p> <p>I am unable to reproduce this error. Can you provide a minimal sample that produces this behavior?</p> <p>Attached you can find my implementation of a custom error handler, based on Zephyr&#39;s &quot;Hello, World&quot; sample. It works both for secure and non-secure applications.</p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-8bcb3968e58646ef831ac648f48cbd9a/custom_2D00_error_2D00_handler.zip">devzone.nordicsemi.com/.../custom_2D00_error_2D00_handler.zip</a></p> <p>Pre-compiled hex files are included.</p> <p>Best regards,</p> <p>Didrik</p><div style="clear:both;"></div>