https://devzone.nordicsemi.com/f/nordic-q-a/80966/does-the-uart-driver-in-nrf-connect-sdk-use-dmaIn the nRF5 SDK there are two uart drivers, UART and UARTE. The UARTE driver makes use of the DMA whilts the UART driver uses interupts. This is what I understood when I used the driver in the nRF5 SDK. In the Zephyr implementation, does the driveren-USTelligent Community 13Mon, 25 Oct 2021 09:58:19 GMThttps://devzone.nordicsemi.com/thread/335678?ContentTypeID=1Mon, 25 Oct 2021 09:58:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:660a0c98-a78e-4c79-b3b8-1dc514929656Kenneth<p>Hello,</p> <p>You can make an BOARDNAME.overlay file in your project folder where you have either of these options:</p> <p>&amp;uart0 {<br /> compatible = &quot;nordic,nrf-uart&quot;;<br />};</p> <p>OR</p> <p>&amp;uart0 {<br /> compatible = &quot;nordic,nrf-uarte&quot;; //This is typically default, as seen in the .dts file for your board.<br />};</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>