BLE runs only while debugging offhttps://devzone.nordicsemi.com/f/nordic-q-a/69927/ble-runs-only-while-debugging-offI have problems with my custom board. I developed the firmware with the nrf52832-dk custom and there the firmware runs standalone (with RTT logs on and without) . but now the firmware work well but when I want to see debug terminal the ble is off, anden-USTelligent Community 13Tue, 05 Jan 2021 11:59:49 GMTRE: BLE runs only while debugging offhttps://devzone.nordicsemi.com/thread/287493?ContentTypeID=1Tue, 05 Jan 2021 11:59:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a4286386-7294-474d-a49e-da4e369ea63aVidar Berg<p>Can you check if the program enters the app error fault handler (<span><a title="Error module" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_error.html?cp=7_1_3_13">Error module</a></span>) when you debug with <span>NRF_LOG_BACKEND_RTT_ENABLED</span>=1? Also, is printf used with RTT in your app?</p><div style="clear:both;"></div>RE: BLE runs only while debugging offhttps://devzone.nordicsemi.com/thread/286756?ContentTypeID=1Mon, 28 Dec 2020 15:27:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ad23812a-d9b2-4240-ba66-8c450e4784acachraf<p>hello,<br />thank you for the answer :I did SEGGER_RTT_CONFIG_DEFAULT_MODE to 0 or 1 :-(, it seems still the probleme ,the BLE is&nbsp;OFF when I debug, unless the&nbsp;<span>NRF_LOG_BACKEND_RTT_ENABLED is 0 and no printf in my code. otherwise the ble doesnt work if I debug</span></p><div style="clear:both;"></div>RE: BLE runs only while debugging offhttps://devzone.nordicsemi.com/thread/286729?ContentTypeID=1Mon, 28 Dec 2020 14:06:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:539290af-2b8a-4827-b300-42fb4b5e20a7Vidar Berg<p>Hello,</p> <p>Please make sure the SEGGER_RTT_CONFIG_DEFAULT_MODE config option is set to either 0 or 1 in your sdk_config header. Otherwise, the RTT backend will become blocking when you don&#39;t have a debugger reading the RTT messages connected.</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>