https://devzone.nordicsemi.com/f/nordic-q-a/40558/release-build-doesn-t-run-debug-build-runs-fine-sdk15-2-ses-3-52aI am using SES 3.52a with SDK 15.0. ( I have a program based upon SDK14.1 from a year ago that was my starting point.) In my current environment, my Debug config builds and runs just great. (Even when debugger is not attached!) When I build the veryen-USTelligent Community 13Mon, 19 Nov 2018 14:24:33 GMThttps://devzone.nordicsemi.com/thread/158000?ContentTypeID=1Mon, 19 Nov 2018 14:24:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d3e73489-9420-4295-9215-d0a7f71c125fhaakonsh<p><span>NVIC_SystemReset should only be present if it&#39;s used. It might be that it is only used in the error handler when the debug flag is set.&nbsp;<br /><br />What happens if you turn off optimization? I guess&nbsp;SystemCoreClockUpdate&nbsp;is removed because it is not actually used for anything.&nbsp;<br /></span></p> <p><span></span></p> <p><span>&nbsp;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/157791?ContentTypeID=1Fri, 16 Nov 2018 17:36:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bed7224b-f150-4192-a692-2ea59c33f4ceW9<p>An update:</p> <p>Last night I found that Anomally_109 was not checked in my SDK_config.h file. I enabled that particular item and the Release Build now seems to work just like the Debug Build version.</p> <p>However, I am still concerned that the maps for the Release build show that the NVIC_SystemReset and SystemCoreClockUpdate modules are not loaded in the Release build.</p> <p>W</p><div style="clear:both;"></div>