UART IT + FreeRTOS Queue

/**
  * @brief This function handles USART1 global interrupt.
  */
void USART1_IRQHandler(void)
{
  /* USER CODE BEGIN USART1_IRQn 0 */
  UART_IRQHandler(&huart1);
  /* USER CODE END USART1_IRQn 0 */
  HAL_UART_IRQHandler(&huart1);
  /* USER CODE BEGIN USART1_IRQn 1 */

  /* USER CODE END USART1_IRQn 1 */
}


/*----------------------------------------------------------------------------
  UART_IRQHandler
  Handles UART global interrupt request.
 *----------------------------------------------------------------------------*/
void UART_IRQHandler(UART_HandleTypeDef* uartHandle)
{
    uint8_t data;
    BaseType_t xHigherPriorityTaskWoken = pdFALSE;

    if (__HAL_UART_GET_IT(uartHandle, UART_IT_RXNE)) { // read interrupt
        __HAL_UART_CLEAR_IT(uartHandle, UART_IT_RXNE);  // clear interrupt

        data = uartHandle->Instance->RDR & 0x0FF;
        xQueueSendToBackFromISR(uartInQueueHandle, &data, &xHigherPriorityTaskWoken);

        xTaskNotifyFromISR(uartTaskHandle, 1, eSetBits, NULL);
    }

    if (__HAL_UART_GET_IT(uartHandle, UART_IT_TXE)) {
        __HAL_UART_CLEAR_IT(uartHandle, UART_IT_TXE); // clear interrupt

      if (uxQueueMessagesWaitingFromISR(uartOutQueueHandle)) {
          xQueueReceiveFromISR(uartOutQueueHandle, &data, &xHigherPriorityTaskWoken);
          uartHandle->Instance->TDR = data;
          tx_restart = 0;
      }
      else {
        tx_restart = 1;
        __HAL_UART_DISABLE_IT(uartHandle, UART_IT_TXE); // disable TX interrupt if nothing to send

      }
    }
}