https://devzone.nordicsemi.com/f/nordic-q-a/116961/using-nrf52840-to-serial-flash-a-stm-chipHello! I have a complex issue that I am trying to brainstorm. The task is that I am trying to receive a file over the air and be able to serial flash my STM32U575xx. The two questions I have to start with (Will be more, but I am trying to gatheren-USTelligent Community 13Wed, 04 Dec 2024 12:22:20 GMThttps://devzone.nordicsemi.com/thread/513412?ContentTypeID=1Wed, 04 Dec 2024 12:22:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4599022f-db31-4ca2-a222-7d14ad81b450runsiv<p>Hi</p> <p>1. I would check out the&nbsp;<a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/zephyr/services/device_mgmt/ota.html">OtA documentation</a>&nbsp;and use the <a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/zephyr/samples/subsys/mgmt/mcumgr/smp_svr/README.html">SMP server sample</a>&nbsp; to download the image and transport it to next device. I would suggest checking out Sigurds reply <a href="https://devzone.nordicsemi.com/f/nordic-q-a/114572/assistance-needed-for-ble-dfu-of-device-b-using-device-a-as-central/501687">here</a>. How do you plan to get the image from the air?&nbsp;</p> <p>2. On the STM side i can&#39;t really say to much as I&#39;m not familiar with it. But if you are using Zephyr I would use the smp_cliemt sample and send the data over uart</p> <p>Regards</p> <p>Runar</p><div style="clear:both;"></div>