Advertisement not started when ble_adv_fast_timeout 180s

Question

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 · Accepted Answer

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

Advertisement not started when ble_adv_fast_timeout > 180s

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