https://devzone.nordicsemi.com/f/nordic-q-a/36962/local-variables-didn-t-changeHi all. I wondered why the variables( trig and echo) didn&#39;t change the value when I debugged. Help me.en-USTelligent Community 13Mon, 30 Jul 2018 06:24:23 GMThttps://devzone.nordicsemi.com/thread/141808?ContentTypeID=1Mon, 30 Jul 2018 06:24:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e591000a-398e-4136-b081-939db1b63881Nor_Kim<p>Thank you !!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/141804?ContentTypeID=1Mon, 30 Jul 2018 05:29:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d6d99dbe-1e2b-42c9-8cb5-36942ae894bbEugene Yu<p>Hi,</p> <p></p> <p>You might have release setting for your project.</p> <p>The release mode&nbsp;has level 3 for optimization and it can be changed local variable by compiler.</p> <p><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/8233.Untitled.png" /></p> <p>Change the project to debug mode and try it again</p> <p></p> <p>Thanks,</p> <p>Eugene</p><div style="clear:both;"></div>