https://devzone.nordicsemi.com/f/nordic-q-a/22425/configuring-leds-for-bootloader_secure-example-on-custom-boardHello, I am using the bootloader_secure-Example on a custom-board and I want to configure a LED as status-indication. Since I am on a custom-board I disabled the functions leds_init() and buttons_init(), that would provide some functionality whenen-USTelligent Community 13Wed, 31 May 2017 09:42:54 GMThttps://devzone.nordicsemi.com/thread/88179?ContentTypeID=1Wed, 31 May 2017 09:42:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d6b496cb-e801-450f-91ed-9aee2387edd0Ray Breslin<p>For an easy test it just needs the bootloader_secure-example being flashed and you are already in bootloader-mode! During normal operation I use some imported code-lines from the buttonless_dfu-example that work like a charm!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/88182?ContentTypeID=1Wed, 31 May 2017 09:41:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c5ec55d7-dd70-4ae5-9cf2-d2ee57df04cfRay Breslin<p>That was it thank you! I thought I could skip it, but it seems that the transition 0-&gt;1 is only possible with giving a defined 0 before...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/88180?ContentTypeID=1Wed, 31 May 2017 09:28:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9bd74db8-3c95-4d0f-a198-a48d54a8c5a8Hung Bui<p>You don&#39;t need to enable GPIOTE to toggle the LED. I don&#39;t see any problem with your code. Do you see the pin turned high ?</p> <p>If you disable buttons_init() , how would you enter bootloader mode ? (Hold bootloader button when reset to enter bootloader mode)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/88181?ContentTypeID=1Tue, 30 May 2017 17:25:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c35d5b81-b488-4eaf-9ea3-1b0dbb819265Daniel Wang<p>Maybe the LED is active low? try nrf_gpio_pin_clear(27); instead</p><div style="clear:both;"></div>