My Board keeps rebooting continuously without any tasks


I am using FreeRTOS on STM32F4 MCU. And I am new to FreeRTOS, I have generated the configurations from STM32Cube IDE. Without any tasks, My board keeps rebooting, I don’t know what I am missing. Please help me to overcome this issue or is it normal behavior? Please explain.

Thanks in advance.

Did you start the scheduler?

How did you verify that the board is rebooting?

Can you share your code?


/* configSUPPORT_STATIC_ALLOCATION and configUSE_TIMERS are both set to 1, so the
application must provide an implementation of vApplicationGetTimerTaskMemory()
to provide the memory that is used by the Timer service task. */
void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer,
		StackType_t **ppxTimerTaskStackBuffer,
		uint32_t *pulTimerTaskStackSize )
	/* If the buffers to be provided to the Timer task are declared inside this
function then they must be declared static – otherwise they will be allocated on
the stack and so not exists after this function exits. */
	static StaticTask_t xTimerTaskTCB;
	static StackType_t uxTimerTaskStack[ configTIMER_TASK_STACK_DEPTH ];

	/* Pass out a pointer to the StaticTask_t structure in which the Timer
    task’s state will be stored. */
	*ppxTimerTaskTCBBuffer = &xTimerTaskTCB;

	/* Pass out the array that will be used as the Timer task’s stack. */
	*ppxTimerTaskStackBuffer = uxTimerTaskStack;

	/* Pass out the size of the array pointed to by *ppxTimerTaskStackBuffer.
    Note that, as the array is necessarily of type StackType_t,
    configTIMER_TASK_STACK_DEPTH is specified in words, not bytes. */
	*pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
int main(void)
  printf("Board Initialized\r\n");
  osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 128);
  defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);



When running in debug mode, I am getting “Board Initialized” text continuously in serial monitor. I used a global variable and incremented it within main(), printed and checked, I am getting variable as 0 continuously.

Is this the default code generated by the IDE or did you make any change? Can you share the complete code - may be put it in GitHub and share link?
Are you using custom hardware or a dev board? Can you step through the code of osKernelStart and see where it fails?