https://devzone.nordicsemi.com/f/nordic-q-a/10007/example-heart-rate-service-from-sdk-9-0-0-trouble-inserting-breakpoint-on-line-923-instruction-app_error_check-err_codeDear all, I had debugged example Heart Rate Service from SDK 9.0.0 without problems but I think we have a exception, when I insert a breakpoint on line 923 instruction APP_ERROR_CHECK(err_code) the debugger stops there, correct, but when entering Runen-USTelligent Community 13Wed, 04 Nov 2015 18:47:40 GMThttps://devzone.nordicsemi.com/thread/37076?ContentTypeID=1Wed, 04 Nov 2015 18:47:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4a639aa1-31c0-4306-b3a9-f15770723f09tenedorio<p>Hello Achim, thanks for the help, in fact there are some concernings when debugging with softedevice, now I know that one of best techniques is that of reported by Aryan, Nordic employee. There are also some people talking about using UART for ble applications debug but I think is tedious so I will continue using debugger and looking forward use trace data. Can you comment? Regards. Luis Tenedorio</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/37075?ContentTypeID=1Fri, 30 Oct 2015 20:35:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:246661b9-9fbd-4ca9-8f99-9d13fe048e9fAchim Kraus<p>Is the &quot;softdevice&quot; running? If yes, have you tried</p> <p><a href="https://devzone.nordicsemi.com/question/53488/application-debug-with-softdevice/">devzone.nordicsemi.com/.../</a></p> <p>?</p><div style="clear:both;"></div>