https://devzone.nordicsemi.com/f/nordic-q-a/36745/i-can-not-debug-my-app-with-freertos-and-ble-if-the-ble-is-connected-but-i-can-debug-the-app-if-the-ble-is-disconnectedI can not debug my app with freertos and BLE if the ble is connected, but I can debug the app id the ble is disconnected, i want to debug inside the xqueue recieve and send while the BLE is connected. If the BLE is disconnected I can debug just fineen-USTelligent Community 13Mon, 23 Jul 2018 17:01:24 GMThttps://devzone.nordicsemi.com/thread/141032?ContentTypeID=1Mon, 23 Jul 2018 17:01:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:86cdffd4-4a6e-4b93-bb7f-5590c6b081c9WestCoastDaz<p><a href="https://devzone.nordicsemi.com/members/fmbi1984">Francisco Betancourt</a> Have you tried looking at the call stack when you hit the breakpoint to see where you are in your code?&nbsp;&nbsp; You may be in the hard fault handler which uses <pre class="ui-code" data-mode="c_cpp">NRF_BREAKPOINT_COND;</pre> .</p> <p>Also, in your above example queue receive you don&#39;t seem to be checking the return type.&nbsp; Without checking the return type from the&nbsp; call to xQueueReceve you won&#39;t know if your queue timed out our if you received a message.</p><div style="clear:both;"></div>