https://devzone.nordicsemi.com/f/nordic-q-a/34883/device-addresshi The Peripheral HRS Example has device address in nRF52 SDK de:ae:dc:9b:cb I would like to know where in the Code this address is Set ? Not able to finden-USTelligent Community 13Tue, 29 May 2018 12:50:45 GMThttps://devzone.nordicsemi.com/thread/133819?ContentTypeID=1Tue, 29 May 2018 12:50:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c103b450-da12-4524-9917-81e057d1cfb7Sigurd<p><span>Hi,</span></p> <p><span>It is set by the SoftDevice.&nbsp;</span><span>The SoftDevice is the BLE protocol stack, it is delivered as a pre-qualified binary file, so you will not be able to see the code where this is set. The&nbsp;device address</span><span>&nbsp;is derived from the FICR DEVICEADDR registers. See <a href="https://devzone.nordicsemi.com/f/nordic-q-a/2112/how-to-get-6-byte-mac-address-at-nrf51822">this post</a> for more information about that.</span></p><div style="clear:both;"></div>