https://devzone.nordicsemi.com/f/nordic-q-a/60301/enabling-spi-in-nrf9160-using-overlay-fileHello, I have followed the tutorial series of nRF Connect SDK Tutorial and now I have basic understanding on how the ncs works. I&#39;m trying to enable SPI0 in the nRF9160 DK using overlay file (project attached in the end) My overlay file: nrf9160_pca10090nsen-USTelligent Community 13Tue, 21 Apr 2020 13:47:39 GMThttps://devzone.nordicsemi.com/thread/245862?ContentTypeID=1Tue, 21 Apr 2020 13:47:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3a81edac-476b-473d-8169-79ef555629a5Heidi<p>Hi!</p> <p>Thank you for your patience, it took longer than I expected to figure that out.&nbsp;</p> <p></p> <p>There are a few minor errors with your code that I have cleared up, an incorrect GPIO definition and the name for SPI_0 is just &quot;SPI_0&quot;. The main issue was that SPI0 and UART0 use the same resources so you have to disable UART0 for SPI0 to work, so I removed&nbsp;CONFIG_UART_0_NRF_UARTE=y. Since Zephyr&#39;s logging uses UART 0, you have to disable logging in your sample (CONFIG_SERIAL=n) as well. And since you&#39;re building for the non-secure board and therefore using SPM, you need to add this to the SPM sample too.&nbsp;</p> <p>So when trying out the .zip, make sure to go into ncs/nrf/samples/nrf9160/spm/prj.conf and add CONFIG_SERIAL=n first.</p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-91ee8d88e6b64017a2b9ceff899a72dd/hello_5F00_world_5F00_248016_5F00_DZ.zip">devzone.nordicsemi.com/.../hello_5F00_world_5F00_248016_5F00_DZ.zip</a></p> <p>Best regards,</p> <p>Heidi</p><div style="clear:both;"></div>