https://devzone.nordicsemi.com/f/nordic-q-a/6182/configuration-keil-projectI&#39;m still having a bit of trouble getting my board to receive Heart Rate information from the demo example provided in the 7.2.0 SDK. I&#39;ve configured the network key correctly (using the ANT+ network key), and the code downloads perfectly fine to theen-USTelligent Community 13Tue, 24 Mar 2015 21:37:05 GMThttps://devzone.nordicsemi.com/thread/21652?ContentTypeID=1Tue, 24 Mar 2015 21:37:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4a6e9408-184d-4ab4-8949-075b602052e2Nkrause<p>Thanks Asbjorn, I had set the breakpoints in the wrong place. However I&#39;ve disabled optimization on this project and there&#39;s no change in the behaviour of the program. I seem to get stuck in some sort of infinite loop, it says there&#39;s an unknown function at 0xFFFFFFFE and all it does it repeat the same instructions in the disassembly view movs r0, r0. EDIT: Figured part of it out, had my debugger entering at the wrong point</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/21651?ContentTypeID=1Mon, 23 Mar 2015 10:11:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d26ebb8b-6e45-40ae-8df4-07580f9e190cAsbj&#248;rn<p>As @Krzysztof suggests, check the optimization settings on your project. Secondly, are you sure you&#39;ve set the breakpoint in a location it will actually reach during normal operation?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/21650?ContentTypeID=1Mon, 23 Mar 2015 06:10:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:18f2e579-8811-4759-9bf5-7a040f586db2Krzysztof Chruscinski<p>Is it a project compiled and run in Crossworks but only imported from Keil? You can try to turn off optimization - should help with debugging.</p><div style="clear:both;"></div>