Is there a way to update the mac address after enabling Bluetooth?

RE: Is there a way to update the mac address after enabling Bluetooth?

Sigurd — Thu, 16 Sep 2021 11:04:41 GMT

[quote user="Gray_"]Can I generate a mac address defined by myself?[/quote]

Yes. Snippet:

static bt_addr_le_t addr = {
	.type = BT_ADDR_LE_RANDOM,
	/* fixed MAC addres */
	.a = {
		.val = {0x01,0x02,0x03,0x04,0x05,0xc6},
	},
};

...
...

int err;
err =  bt_id_create(&addr,NULL);

RE: Is there a way to update the mac address after enabling Bluetooth?

Palmer Huang — Tue, 14 Sep 2021 09:41:32 GMT

Hi, Sigurd

This seems to be generating a completely random mac address. Can I generate a mac address defined by myself?

RE: Is there a way to update the mac address after enabling Bluetooth?

Sigurd — Mon, 13 Sep 2021 16:11:36 GMT

Hi,

Just call bt_id_create(NULL, NULL);

You can see how its used e.g. here: https://github.com/nrfconnect/sdk-zephyr/blob/v2.6.99-ncs1-snapshot1/samples/bluetooth/peripheral_identity/src/peripheral_identity.c#L44