https://devzone.nordicsemi.com/f/nordic-q-a/66911/how-to-get-the-chip-mac-without-sdhi im try to get the 52840&#39;s mac address,but i needn&#39;t the ble funcation,so i want to get the mac without softdevice,and there is any api to get it?en-USTelligent Community 13Fri, 09 Oct 2020 06:15:27 GMThttps://devzone.nordicsemi.com/thread/273907?ContentTypeID=1Fri, 09 Oct 2020 06:15:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7fabee96-ab5c-461c-b6c1-ee52606e0a1cNikosant03<p>Hi pipixia_8_8</p> <p>Yes, you can read the MAC address directly be reading NRF_FICR-&gt;<a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/ficr.html?cp=4_2_0_12_0_13#register.DEVICEADDR-0">DEVICEADDR[0]</a> and NRF_<span>FICR-&gt;<a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/ficr.html?cp=4_2_0_12_0_14#register.DEVICEADDR-1">DEVICEADDR[1]</a></span>&nbsp;registers</p> <p>These registers are 4byte in size. MAC address is 6byte in size,&nbsp;<a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/ficr.html?cp=4_2_0_12_0_13#register.DEVICEADDR-0">DEVICEADDR[0]</a>&nbsp;contains the&nbsp;least significant bits of the device address (4bytes) while the&nbsp;<span><a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/ficr.html?cp=4_2_0_12_0_14#register.DEVICEADDR-1">DEVICEADDR[1]</a></span><span>&nbsp;the rest of the two bytes (most significant bytes)</span></p> <p><span>Hope that helps</span></p> <p><span>Nick</span></p><div style="clear:both;"></div>