Problems with the size of the payload with STM32WBA55

[ledi001]

Hi,

I use the example BLE_p2pServer_ota and want to transfer 20 bytes of data to UART2 within a characteristic. But i only get the value 1 for sizeof(p_Notification->DataTransfered.Length). 

 case P2P_SERVER_UART_C_WRITE_NO_RESP_EVT:
      /* USER CODE BEGIN Service1Char3_WRITE_NO_RESP_EVT */
      sizeOfPayload = sizeof(p_Notification->DataTransfered.p_Payload);
  	  if(HAL_UART_Transmit_DMA(&huart2, p_Notification->DataTransfered.p_Payload, sizeof(p_Notification->DataTransfered.Length)) != HAL_OK)
  	  {
  		Error_Handler();
  	  }