https://devzone.nordicsemi.com/f/nordic-q-a/107579/nrf5340-ncs-switch-between-dtm-and-normal-ble-stack-with-the-same-firmwareWe are using an nRF5340. Looking at the nRF Connect SDK direct_test_mode sample, it appears that the network core is flashed with DTM only firmware. In our application we want to be able to flash our device with once with our application firmware anden-USTelligent Community 13Mon, 22 Jan 2024 15:02:14 GMThttps://devzone.nordicsemi.com/thread/465384?ContentTypeID=1Mon, 22 Jan 2024 15:02:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3f234671-6738-41b7-be20-239699fde6ebdenis<p>It would be great if this capability could be added to the nRF5340 BLE stack and available using Zephyr APIs. &nbsp;It is pretty important for RF testing to go into production.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/465344?ContentTypeID=1Mon, 22 Jan 2024 13:45:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1b8f24e3-fe7c-48bf-a185-f43fb3cd7abdEinar Thorsrud<p>Hi,</p> <p>The SoftDevice controller does not support DTM, so using that, you need to use separate binaries for DTM and when you use the Bluetooth stack. (The Zephyr controller on the other hand support DTM over HCI when built with&nbsp;<code>CONFIG_BT_CTLR_DTM_HCI=y</code>, but I would not recomend that you use the Zephyr controller in your end product).</p><div style="clear:both;"></div>