STM32F723ZG, FreeRTOS Hardfault, after Enable DCache

[Sany]

Hello,

I have a problem with my default code (generated by Stm32CubeIDE), I use a STM32F723ZG with Ethernet.

I started a new project, with default settings, this works fine, now I enable ETH and LWIP with DCache, it works fine... now, I enable FreeRTOS.. and here comes the problem.

When I compile the code an run it, the init routines working fine, now the osKernelStart jumps in a HardFault Error:

osThreadId_t defaultTaskHandle;
const osThreadAttr_t defaultTask_attributes = {
  .name = "defaultTask",
  .priority = (osPriority_t) osPriorityNormal,
  .stack_size = 128 * 4
};
 
void StartDefaultTask(void *argument);
 
int main(void)
{
  /* USER CODE BEGIN 1 */
 
  /* USER CODE END 1 */
 
  /* Enable I-Cache---------------------------------------------------------*/
  SCB_EnableICache();
 
  /* Enable D-Cache---------------------------------------------------------*/
  SCB_EnableDCache();
 
  /* MCU Configuration--------------------------------------------------------*/
 
  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();
 
  /* USER CODE BEGIN Init */
 
  /* USER CODE END Init */
 
  /* Configure the system clock */
  SystemClock_Config();
 
  /* USER CODE BEGIN SysInit */
 
  /* USER CODE END SysInit */
 
  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_I2C1_Init();
  MX_I2C2_Init();
  MX_I2C3_Init();
  MX_I2C4_Init();
  MX_I2C5_Init();
  MX_UART4_Init();
  MX_USART1_UART_Init();
  MX_USART3_UART_Init();
  MX_USART6_UART_Init();
  MX_USART10_UART_Init();
  /* USER CODE BEGIN 2 */
 
  /* USER CODE END 2 */
 
  /* Init scheduler */
  osKernelInitialize();
 
  /* USER CODE BEGIN RTOS_MUTEX */
  /* add mutexes, ... */
  /* USER CODE END RTOS_MUTEX */
 
  /* USER CODE BEGIN RTOS_SEMAPHORES */
  /* add semaphores, ... */
  /* USER CODE END RTOS_SEMAPHORES */
 
  /* USER CODE BEGIN RTOS_TIMERS */
  /* start timers, add new ones, ... */
  /* USER CODE END RTOS_TIMERS */
 
  /* USER CODE BEGIN RTOS_QUEUES */
  /* add queues, ... */
  /* USER CODE END RTOS_QUEUES */
 
  /* Create the thread(s) */
  /* creation of defaultTask */
  defaultTaskHandle = osThreadNew(StartDefaultTask, NULL, &defaultTask_attributes);
 
  /* USER CODE BEGIN RTOS_THREADS */
  /* add threads, ... */
  /* USER CODE END RTOS_THREADS */
 
  /* USER CODE BEGIN RTOS_EVENTS */
  /* add events, ... */
  /* USER CODE END RTOS_EVENTS */
 
  /* Start scheduler */
  osKernelStart();
 
  /* We should never get here as control is now taken by the scheduler */
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */
 
    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}
 
void StartDefaultTask(void *argument)
{
  /* init code for USB_DEVICE */
  MX_USB_DEVICE_Init();
 
  /* init code for LWIP */
  MX_LWIP_Init();
  /* USER CODE BEGIN 5 */
  /* Infinite loop */
  for(;;)
  {
    osDelay(1);
  }
  /* USER CODE END 5 */
}
 
 

This takes the Error in vTaskStartsScheduler():

		xNextTaskUnblockTime = portMAX_DELAY;
		xSchedulerRunning = pdTRUE;
		xTickCount = ( TickType_t ) configINITIAL_TICK_COUNT;
 
		/* If configGENERATE_RUN_TIME_STATS is defined then the following
		macro must be defined to configure the timer/counter used to generate
		the run time counter time base.   NOTE:  If configGENERATE_RUN_TIME_STATS
		is set to 0 and the following line fails to build then ensure you do not
		have portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() defined in your
		FreeRTOSConfig.h file. */
		portCONFIGURE_TIMER_FOR_RUN_TIME_STATS();
 
		traceTASK_SWITCHED_IN();
 
		/* Setting up the timer tick is hardware specific and thus in the
		portable interface. */
		if( xPortStartScheduler() != pdFALSE )
		{
			/* Should not reach here as if the scheduler is running the
			function will not return. */
		}
		else
		{
			/* Should only reach here if a task calls xTaskEndScheduler(). */
		}

This Lines goes to the HardFault Handler:

if( xPortStartScheduler() != pdFALSE )

MPU Function are disabled, how must I configure?

Thanks

Daniel

[Piranha]

There is no such MCU...

And ST is incapable of providing a working network stack solution:

https://community.st.com/s/question/0D50X0000C6eNNSSQ2/bug-fixes-stm32h7-ethernet

https://community.st.com/s/question/0D50X0000BOtfhnSQB/how-to-make-ethernet-and-lwip-working-on-stm32