RE: advertisement with random address

Joakim Jakobsen — Fri, 19 Jan 2018 14:23:01 GMT

Hi Anuja!

If you take a look at the sd_ble_gap_address_set() function, you can see that;

NOTE:
If the address cycle mode is BLE_GAP_ADDR_CYCLE_MODE_AUTO, the address type is required to be BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_RESOLVABLE or BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_NON_RESOLVABLE. The given address is ignored and the SoftDevice will generate a new private address automatically every BLE_GAP_DEFAULT_PRIVATE_ADDR_CYCLE_INTERVAL_S seconds.
If this API call is used again with the same parameters, the SoftDevice will immediately generate a new private address to replace the current address. If the application wishes to use a BLE_GAP_ADDR_TYPE_PUBLIC or BLE_GAP_ADDR_TYPE_RANDOM_STATIC address, the cycle mode must be BLE_GAP_ADDR_CYCLE_MODE_NONE.

In short, to use the BLE_GAP_ADDR_CYCLE_MODE_AUTO, the address type must be either BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_RESOLVABLE or BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_NON_RESOLVABLE.

Best regards,
Joakim.