Mac Address of nRF51 on nRF Connect and get in the code

[lamdo]

I have a confusion about mac address of nrf51822, I run example ble_app_uart.

When I use nRF Connect on Android, I can see the mac address of nRF51822 is CB:16:04:4A:10:56,

But when I try to run command sd_ble_gap_address_get(&mac), I got this: 00:00:00:c4:21:00. I did not set any address.

Can anyone explain why there is the different in Mac addresses, and how to get the same MacAddress.

Thank you.

[Håkon Alseth]

Hi,

 

The bluetooth address is derived from the registers NRF_FICR->DEVICEADDR[0] and NRF_FICR->DEVICEADDR[1].

Could you post the content of these two registers?

 

Also, do you check the return code of the sd_ble_gap_address_get() call? It might be that this is failing for some reason.

 

Best regards,

Håkon