https://devzone.nordicsemi.com/f/nordic-q-a/106118/custom-developed-board-is-extremely-slowI developed a custom board which included a nrf52840. As development board I had the BMD340 eval. There my code works fine. Now I have developed a custom including this cheep. The chip is programmable and debugable. However everything is extremely slowen-USTelligent Community 13Tue, 28 Nov 2023 19:48:43 GMThttps://devzone.nordicsemi.com/thread/457966?ContentTypeID=1Tue, 28 Nov 2023 19:48:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:854f5858-bfcb-4081-91eb-c9342f6c73cfHorstvanGrass<p>Worked for me. Thx a lot!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/457842?ContentTypeID=1Tue, 28 Nov 2023 12:52:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4d10cdda-e3c4-4bdb-9081-fb3d8a6adc6eKenneth<p>Seems to be related to the clock in some way, maybe the 32kHz source. Does using the internal RC make it more stable?</p> <p>CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y</p> <p>Kenneth</p> <div></div><div style="clear:both;"></div>