https://devzone.nordicsemi.com/f/nordic-q-a/127286/nrf54l15--------i2c-in-mcubootHi Team, We would like to communicate with I2C slave in mcuboot, is it possible to access I2C driver in mcuboot? Regards, Sravan Rikkaen-USTelligent Community 13Mon, 09 Mar 2026 07:41:12 GMThttps://devzone.nordicsemi.com/thread/562780?ContentTypeID=1Mon, 09 Mar 2026 07:41:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f106be70-0ee7-4720-b917-4ba27e54f5aaSusheel Nuguru<p>Their initialization and transactions on those serial peripherals can cause delays in the system boot up time, but apart from that , I do not see why you cannot access those peripherals in mcuboot.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/562766?ContentTypeID=1Sun, 08 Mar 2026 12:13:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ee959bb4-fbfb-4cbb-88d8-844db42423bfsravan.rikka<p>Ok, I am using 3.1.0 SDK...... I want to access I2C and SPI drivers in mcuboot, I can be able access right without any issues?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/562700?ContentTypeID=1Fri, 06 Mar 2026 06:29:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:69bdf93d-657e-4b7b-995f-3b55533edfcaSusheel Nuguru<p>Hi Sravan,</p> <p>Yes, MCUboot can use/access Zephyr drivers, but please note that&nbsp;MCUboot serial recovery in NCS v3.2.1 supports only UART/USB CDC ACM. If you have other requirements with I2C in MCUboot that you want to implement yourself accessing the drivers, then you should be able to do that.</p><div style="clear:both;"></div>