BLE BD address generation

[pangya]

The BD address is generated according to the radio RADIO_CTRL->UID_LSB and random numbers, but why do I access the RADIO_CTRL->UID_LSB register with 0xff, what is the IFR address mapped by this register? Is the UID provided by the chip factory?

[pangya]

Hello 

1.KW45B41
2.adv_ext_peripheral,   SDK_24_12_00_KW45B41Z-EVK.
Does the K45 chip currently have a public SIG-assigned address? I need each device's BD_ADDR to be immutable. Alternatively, can a unique and permanent BD_ADDR be generated from the chip's unique ID?

[luis_maravilla]

Hello

The KW45B41 is the EVK, LOC or a Custom Board? I need to confirm this as NXP boards have some configuration predetermined.

[pangya]

Hello

EVK

[luis_maravilla]

Hello

The SDK uses a public device address by default and has a fixed OUI

I would recommend checking this application note as I believe it might solve your doubts regarding BD Address

Chapter 2 - Why do we need random static device address

AN14645: How to Use Random Static Device Address for Bluetooth Application | NXP Semiconductors

Best Regards

Luis

[luis_maravilla]

Hello

Could you help us confirm the following question to have more context, please:

What NXP chip are you using?

What example are you using? What SDK version are you using?

Best Regards

Luis

[pangya]

Hello

      Are there any updates on the issue?

Best Regards

pangya