Read board MAC address in Zephyr

[Hiihtaja]

Hello !

nrf5340 have unique chip number what as usually used for compose BT MAC address for example.

I can read it by nrfjprog

$ nrfjprog --memrd 0x01FF02A4 --n 8 --coprocessor CP_NETWORK
0x01FF02A4: F662CF1F 65F529D7 |..b..).e|

Do you have any API for composed MAC address in Zephyr environment on app and network core sides ?

I have own radio driver and can't use any BT and IEEE APIs for read it.

Regards,

Eugene

[dejans]

Hi,

This discussion might be helpful if you are looking for BLE MAC address.

Best regards,
Dejan

[Hiihtaja]

Hi !

In my case I have own radio and can't include those BLE frameworks.

I can see some drivers read NRF_FICR->DEVICEADDR[0/1] directly.

But I can't do it , no idea what headers to include in NET_DEVICE driver for be able to support nRF52840 and nRF5340 devices.

May be some low level nordic API what can read and compose 8 byte link address ?

Regards,

Eugene

[dejans]

Hi Eugene,

You should be able to read the FICR DEVICEADDR register directly from the network core as it is accessible only from there.

Best regards,
Dejan