记录下NRF52832断开连接后自动开始广播的方法

1、在advertising_init函数里关闭断开连接后开记广播标志：init.config.ble_adv_on_disconnect_disabled = false;    // 自动广播

static void advertising_init(void)
{
    ret_code_t             err_code;
    ble_advertising_init_t init;

    memset(&init, 0, sizeof(init));

    init.advdata.name_type               = BLE_ADVDATA_FULL_NAME;//广播名称
    init.advdata.include_appearance      = true;
    init.advdata.flags                   = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;//有限广播模式，不支持传统蓝牙
    
    //init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);    // 广播UUID设置
    //init.advdata.uuids_complete.p_uuids  = m_adv_uuids;

    init.srdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);    // 广播UUID设置
    init.srdata.uuids_complete.p_uuids  = m_adv_uuids;

    init.config.ble_adv_fast_enabled  = true;//
    init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
    init.config.ble_adv_fast_timeout  = APP_ADV_DURATION;

//    init.config.ble_adv_slow_enabled  = true;//
//    init.config.ble_adv_slow_interval = APP_ADV_INTERVAL;
//    init.config.ble_adv_slow_timeout  = APP_ADV_DURATION;

    init.config.ble_adv_on_disconnect_disabled = true;    // 禁止自动广播

    init.evt_handler = on_adv_evt;    // 广播事件回调函数

    err_code = ble_advertising_init(&m_advertising, &init);
    APP_ERROR_CHECK(err_code);

    ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}
 

2.实现断开连接后自动广播的代码：ret = ble_advertising_start(p_advertising, BLE_ADV_MODE_DIRECTED_HIGH_DUTY);

static void on_disconnected(ble_advertising_t * const p_advertising, ble_evt_t const * p_ble_evt)
{
    uint32_t ret;

    p_advertising->whitelist_temporarily_disabled = false;

    if (p_ble_evt->evt.gap_evt.conn_handle == p_advertising->current_slave_link_conn_handle &&
        p_advertising->adv_modes_config.ble_adv_on_disconnect_disabled == false)
    {
       ret = ble_advertising_start(p_advertising, BLE_ADV_MODE_DIRECTED_HIGH_DUTY);
       if ((ret != NRF_SUCCESS) && (p_advertising->error_handler != NULL))
       {
           p_advertising->error_handler(ret);
       }
    }
}