每次启动广播前，都尝试停止广播

src/zble_module.c

@@ -145,6 +145,7 @@ static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
 
 void zble_module_start_adv()
 {
+  sd_ble_gap_adv_stop(m_advertising.adv_handle);
   uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
   ZERROR_CHECK(err_code);
 }