Errorcode 13313 at sd_ble_gatts_hvx()

[matthk]

Hello, I would like to send an int32 value every 500ms and use for this the same procedure as it is shown in the heart-rate-example. The code for sending is:

// Send value if connected and notifying

if ((p_ad->conn_handle != BLE_CONN_HANDLE_INVALID) 
&& (p_ad->is_notification_supported))

    {
        uint8_t                encoded_adValue[10];
        uint16_t               hvx_len;
        ble_gatts_hvx_params_t hvx_params;

        hvx_len = uint32_encode(SActualValue.i32Value, encoded_adValue);

        memset(&hvx_params, 0, sizeof(hvx_params));

        hvx_params.handle = p_ad->ad_actualValue_handles.value_handle;
        hvx_params.type   = BLE_GATT_HVX_NOTIFICATION;
        hvx_params.offset = 0;
        hvx_params.p_len  = &hvx_len;
        hvx_params.p_data = encoded_adValue;

        err_code = sd_ble_gatts_hvx(p_ad->conn_handle, &hvx_params);
        if (err_code == NRF_SUCCESS)
        {
            err_code = NRF_ERROR_DATA_SIZE;
        }
    }
    else
    {
        err_code = NRF_ERROR_INVALID_STATE;
    }

    return err_code;

I suppose having initialized correctly everything (also in services_init()); looking at this forum I tried already the inclusion of

case BLE_GATTS_EVT_SYS_ATTR_MISSING:
       err_code = sd_ble_gatts_sys_attr_set(p_ble_evt->evt.gatts_evt.conn_handle, NULL, 0, 0);
       APP_ERROR_CHECK(err_code);
       break;

in the function on_ble_event() but when debugging with a breakpoint I see that this part of code is never reached... What can I do next?

[Petter Myhre]

First you are talking about an error code, and then about a part that is not reached. Which part is not reached? The sending part? I don't understand. Which SDK and SoftDevice version are you using? Error code 13313 is 0x3401 which is BLE_ERROR_GATTS_SYS_ATTR_MISSING. For how to handle it, see this.