Advertisement not started when ble_adv_fast_timeout > 180s

[sboudaud]

Hello,

Conf: custom board, custom firmware, SDK16, SD 7.0.1, NRF 52832

When I configure connectivity advertisement with ble_adv_fast_timeout set to <= 180s the advertisement start without issues.

But when I configure ble_adv_fast_timeout to >180s the advertisement don't start and ble_advertising_init(&mm_advertising, &init) return SUCCESS and ble_advertising_start(&mm_advertising, BLE_ADV_MODE_FAST) return also SUCCESS

there is no indication of error and the advertisement is not started when ble_adv_fast_timeout to is greater than 180s.

Can you please explain this limitation?

Thanks

[Simonr]

Hi

What advertising flag is used in your application. If you've set BLE_GAP_ADV_FLAG_LE_LIMITED_DISC_MODE the maximum advertising timeout allowed will be 180 seconds.

If you change this to BLE_GAP_ADV_FLAG_LE_GENERAL_DISC_MODE it will be unlimited, and you can set the ble_adv_fast_timeout_set to 0 to let it advertise without a timeout.

Best regards,

Simon

[sboudaud]

Hello, it's set to BLE_GAP_ADV_FLAG_LE_LIMITED_DISC_MODE if not bonded, so that's why the max is 180s.
Thanks alot for the help.