3.28 Update Firmware

The UpdateFirmware message in OCPP 1.6J is sent by the central system to instruct the charge point to update its firmware. The message includes the firmware URL and a checksum to verify the file integrity and may specify an install date and retry parameters. The charge point responds to confirm if the update was successfully started or if an error occurred, ensuring the device is running the latest software.

Example:

  case UPDATE_FIRMWARE:
  {
    if (responsecode == UPDATEFIRMWARE_LOCATION_RECEIVED)
    {
      RX_UPDATEFIRMWARE_T params;
      GetUpdateFirmwareParms(&params);
      LogDebug("APP_LOG", " UpdateFirmware Params location: %s retrieveDate: %s retryInterval: %d retries: %d\n", params.location, params.retrieveDate, params.retryInterval, params.retries);
    }
    else if (responsecode == UPDATEFIRMWARE_LOCATION_MISSING)
    {
      LogDebug("APP_LOG", " UpdateFirmware Missing Location Parameter");
    }
  }
  break;