CC2564: Modified public address cause bonding fail

kevin lin1

Part Number: CC2564

Hi,
I can use HCI_VS_Write_BD_Addr to change the public BDADDR of a CC2564 slave device. But I found that when I bond the CC2564 to a master, CC2564 will report SMP fail with
Code: Pairing Failed
Reason: Confirm Value Failed
I figured out that it's because the stack use the default public BDADDR to validate the Mconfirm received from the master. I don't think it's a expected behavior. the master and slave(CC2564) use different BDADDR for Confirm value calculation.

I have try CC2564B and CC2564C, they act the same.
Could you help?
Thanks,
Kevin.

over 7 years ago

0 Hari Nagalla over 7 years ago

TI__Mastermind 27470 points

When are you issuing the HCI_VS_Write_BD_Addr? Can, you also provide the FW logs?

Thanks

0 kevin lin1 over 7 years ago in reply to Hari Nagalla

Prodigy 30 points

I issue the HCI_VS_Write_BD_Addr when FW is running, not at startup. I want to set the public address at any time I want. Is there any restriction?

I have my own log where I can see all the HCI message, and I catch the packet on the air. I am sure it's because the confirm value mismatch that cause this issue.

Thanks,

Kevin.

0 Vincent Rodriguez over 7 years ago in reply to kevin lin1

TI__Mastermind 28285 points

Kevin,

Are you still having issues with this problem?

BR,

Vince

0 kevin lin1 over 7 years ago in reply to Vincent Rodriguez

Prodigy 30 points

Yes, I have no way to figure it out. The stack is close source, nothing I can do.

0 Vihang Parmar over 7 years ago in reply to kevin lin1

TI__Mastermind 29361 points

kevin lin1 said:
I issue the HCI_VS_Write_BD_Addr when FW is running, not at startup. I want to set the public address at any time I want. Is there any restriction?

Yes, the public address of the controller is not supposed to change during the normal operation according to the Bluetooth core specification. You cannot change the public address at any time. If your implementation requires changing the advertised address, please use the resolvable private addresses.

Best regards,

Vihang

Bluetooth®︎

Bluetooth forum

CC2564: Modified public address cause bonding fail