https://devzone.nordicsemi.com/f/nordic-q-a/83031/unable-to-configure-hci-uart-project-in-segger-embeddedUnable to configure hCI Uart project in Segger Embedded I need to configure the HCI_UART project to support DTM testing, but I cannot enable the configuration parameters when I configure it. The diagram below. How to configure to enable the grayen-USTelligent Community 13Thu, 23 Dec 2021 12:48:20 GMThttps://devzone.nordicsemi.com/thread/344949?ContentTypeID=1Thu, 23 Dec 2021 12:48:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:82af77eb-38ef-423c-8da0-8a55c384ea0aHung Bui<p>Hi Derek,&nbsp;<br />I&#39;m afraid that the Nordic Softdevice controller doesn&#39;t support DTM directly. If you define&nbsp;<a href="https://docs.zephyrproject.org/latest/reference/kconfig/CONFIG_BT_LL_SW_SPLIT.html#std-kconfig-CONFIG_BT_LL_SW_SPLIT"><code><span>BT_LL_SW_SPLIT</span></code></a><span>&nbsp;=y (use Zephyr controller instead of Nordic Controller) you will see that the option will be available.&nbsp;<br />So for Nordic controller, you would need to use the \nrf\samples\bluetooth\direct_test_mode example that we provided.&nbsp;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/344712?ContentTypeID=1Wed, 22 Dec 2021 02:48:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:42346556-ffe2-4c26-b176-913d18633b95Derek Chen<p><a href="https://devzone.nordicsemi.com/f/nordic-q-a/38958/does-zephyr-support-dtm-test-directly">Does Zephyr support DTM test directly? - Nordic Q&amp;A - Nordic DevZone - Nordic DevZone (nordicsemi.com)</a></p> <p><span>I see similar problems with the link above, but I don&#39;t know how to configure it. &nbsp;</span></p><div style="clear:both;"></div>