Using fds write in GPIOTE interrupt handlerhttps://devzone.nordicsemi.com/f/nordic-q-a/66656/using-fds-write-in-gpiote-interrupt-handlerHi, Is it possible to write/read the flash memory, from within the interrupt handler of GPIO? I used an push button connected to a GPIO to wake up the ble chip, then read flash memory, add its counter by one and update it. All done within the handleren-USTelligent Community 13Mon, 05 Oct 2020 17:45:10 GMTRE: Using fds write in GPIOTE interrupt handlerhttps://devzone.nordicsemi.com/thread/273044?ContentTypeID=1Mon, 05 Oct 2020 17:45:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cf866a1d-0ea5-4e54-89c7-969055ef9539ref<p>You&#39;re right. That was the issue. I used a flag and do the read/write in the main().&nbsp;</p> <p>Thanks for the help.</p><div style="clear:both;"></div>RE: Using fds write in GPIOTE interrupt handlerhttps://devzone.nordicsemi.com/thread/272988?ContentTypeID=1Mon, 05 Oct 2020 13:02:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b4cd5cbc-4c55-41b9-bfe0-325a490252b7Einar Thorsrud<p>Hi,</p> <p>What are you interrupt priorities? You cannot make FDS calls from a too high interrupt priority, as described in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/57067/calling-fds_record_update-in-isr/231362#231362">this post</a>.</p><div style="clear:both;"></div>