https://devzone.nordicsemi.com/f/nordic-q-a/73918/spim3-issue-on-mosi-using-nrf52840Hello, I&#39;m currently using SDK v17.0.2 with the NRF52840 on nRF52840-DK Board. After going through the example code of &quot;nrfx_spim&quot; I was able to get up and running. I&#39;m using the SPIM3 instance (for the D/CX pin), attempting to talk to an E-Ink displayen-USTelligent Community 13Fri, 16 Apr 2021 16:45:37 GMThttps://devzone.nordicsemi.com/thread/305340?ContentTypeID=1Fri, 16 Apr 2021 16:45:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:066ac888-978a-40c3-a1a0-7ca6af81d1b6Sami<p>I changed pins from a low frequency pin to a standard GPIO and MOSI is correctly working, thanks.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/304530?ContentTypeID=1Tue, 13 Apr 2021 12:26:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9d3a868a-6e9d-41e6-bdcb-90b6cd754a4fKenneth<p>Which pin is&nbsp;E_INK_DISPLAY_MOSI_PIN? Does it work if you use a different pin (for test or if e-display is not connected)?</p> <p>Kenneth</p><div style="clear:both;"></div>