Esempio n. 1
0
static void prvCheckTimerCallback( xTimerHandle xTimer )
{
static long lChangedTimerPeriodAlready = pdFALSE;
static unsigned long ulLastRegTest1Value = 0, ulLastRegTest2Value = 0;
unsigned long ulErrorFound = pdFALSE;

	/* Check all the demo tasks (other than the flash tasks) to ensure
	that they are all still running, and that none have detected an error. */

	if( xAreMathsTaskStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}

	if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}

	if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}

	if( xAreBlockingQueuesStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}

	if ( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}

	if ( xAreGenericQueueTasksStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}

	if ( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}

	if( xIsCreateTaskStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}

	if( xArePollingQueuesStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}

	if( xAreSemaphoreTasksStillRunning() != pdTRUE )
	{
		ulErrorFound = pdTRUE;
	}
	
	/* Check that the register test 1 task is still running. */
	if( ulLastRegTest1Value == ulRegTest1LoopCounter )
	{
		ulErrorFound = pdTRUE;
	}
	ulLastRegTest1Value = ulRegTest1LoopCounter;

	/* Check that the register test 2 task is still running. */
	if( ulLastRegTest2Value == ulRegTest2LoopCounter )
	{
		ulErrorFound = pdTRUE;
	}
	ulLastRegTest2Value = ulRegTest2LoopCounter;

	/* Toggle the check LED to give an indication of the system status.  If
	the LED toggles every mainCHECK_TIMER_PERIOD_MS milliseconds then
	everything is ok.  A faster toggle indicates an error. */
	mainTOGGLE_LED();	
	
	/* Have any errors been latch in ulErrorFound?  If so, shorten the
	period of the check timer to mainERROR_CHECK_TIMER_PERIOD_MS milliseconds.
	This will result in an increase in the rate at which mainCHECK_LED
	toggles. */
	if( ulErrorFound != pdFALSE )
	{
		if( lChangedTimerPeriodAlready == pdFALSE )
		{
			lChangedTimerPeriodAlready = pdTRUE;
			
			/* This call to xTimerChangePeriod() uses a zero block time.
			Functions called from inside of a timer callback function must
			*never* attempt	to block. */
			xTimerChangePeriod( xTimer, ( mainERROR_CHECK_TIMER_PERIOD_MS ), mainDONT_BLOCK );
		}
	}
}
Esempio n. 2
0
static void vCheckTask( void *pvParameters )
{
/* Used to wake the task at the correct frequency. */
TickType_t xLastExecutionTime;

/* The maximum jitter time measured by the fast interrupt test. */
extern unsigned short usMaxJitter ;

/* Buffer into which the maximum jitter time is written as a string. */
static char cStringBuffer[ mainMAX_STRING_LENGTH ];

/* The message that is sent on the queue to the LCD task.  The first
parameter is the minimum time (in ticks) that the message should be
left on the LCD without being overwritten.  The second parameter is a pointer
to the message to display itself. */
xLCDMessage xMessage = { 0, cStringBuffer };

/* Set to pdTRUE should an error be detected in any of the standard demo tasks. */
unsigned short usErrorDetected = pdFALSE;

	/* Initialise xLastExecutionTime so the first call to vTaskDelayUntil()
	works correctly. */
	xLastExecutionTime = xTaskGetTickCount();

	for( ;; )
	{
		/* Wait until it is time for the next cycle. */
		vTaskDelayUntil( &xLastExecutionTime, mainCHECK_TASK_PERIOD );

		/* Has an error been found in any of the standard demo tasks? */

		if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
		{
			usErrorDetected = pdTRUE;
			sprintf( cStringBuffer, "FAIL #1" );
		}

		if( xAreComTestTasksStillRunning() != pdTRUE )
		{
			usErrorDetected = pdTRUE;
			sprintf( cStringBuffer, "FAIL #2" );
		}

		if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
		{
			usErrorDetected = pdTRUE;
			sprintf( cStringBuffer, "FAIL #3" );
		}

		if( xAreBlockingQueuesStillRunning() != pdTRUE )
		{
			usErrorDetected = pdTRUE;
			sprintf( cStringBuffer, "FAIL #4" );
		}

		if( usErrorDetected == pdFALSE )
		{
			/* No errors have been discovered, so display the maximum jitter
			timer discovered by the "fast interrupt test". */
			sprintf( cStringBuffer, "%dns max jitter", ( short ) ( usMaxJitter - mainEXPECTED_CLOCKS_BETWEEN_INTERRUPTS ) * mainNS_PER_CLOCK );
		}

		/* Send the message to the LCD gatekeeper for display. */
		xQueueSend( xLCDQueue, &xMessage, portMAX_DELAY );
	}
}
Esempio n. 3
0
File: main.c Progetto: Eclo/FreeRTOS
static long prvCheckOtherTasksAreStillRunning( void )
{
long lReturn = pdPASS;
unsigned long ulHighFrequencyTimerTaskIterations, ulExpectedIncFrequency_ms;

	/* Check all the demo tasks (other than the flash tasks) to ensure
	that they are all still running, and that none have detected an error. */

	if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if( xAreComTestTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if( xAreBlockingQueuesStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if ( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if ( xAreGenericQueueTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if ( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if( prvAreRegTestTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if( xIsCreateTaskStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if( xAreTimerDemoTasksStillRunning( mainNO_ERROR_FLASH_PERIOD_MS ) != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if( xArePollingQueuesStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if( xAreSemaphoreTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	/* Obtain the number of times the task associated with the high frequency
	(interrupt nesting) timer test has increment since the check task last
	executed, and the frequency at which it is expected to execute in ms. */
	ulHighFrequencyTimerTaskIterations = ulInterruptNestingTestGetIterationCount( &ulExpectedIncFrequency_ms );
	if( ( ulHighFrequencyTimerTaskIterations < ( ( mainNO_ERROR_FLASH_PERIOD_MS / ulExpectedIncFrequency_ms ) - 1 ) )
		||
		( ulHighFrequencyTimerTaskIterations > ( ( mainNO_ERROR_FLASH_PERIOD_MS / ulExpectedIncFrequency_ms ) +5 ) )
	  )
	{
		/* Would have expected the high frequency timer task to have
		incremented its execution count more times that reported. */
		lReturn = pdFAIL;
	}

	return lReturn;
}
Esempio n. 4
0
static void prvCheckTask( void *pvParameters )
{
static volatile unsigned long ulLastRegTest1CycleCount = 0UL, ulLastRegTest2CycleCount = 0UL;
TickType_t xNextWakeTime, xCycleFrequency = mainNO_ERROR_CYCLE_TIME;
extern void vSetupHighFrequencyTimer( void );

	/* If this is being executed then the kernel has been started.  Start the high
	frequency timer test as described at the top of this file.  This is only
	included in the optimised build configuration - otherwise it takes up too much
	CPU time. */
	#ifdef INCLUDE_HIGH_FREQUENCY_TIMER_TEST
		vSetupHighFrequencyTimer();
	#endif

	/* Initialise xNextWakeTime - this only needs to be done once. */
	xNextWakeTime = xTaskGetTickCount();

	for( ;; )
	{
		/* Place this task in the blocked state until it is time to run again. */
		vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );

		/* Check the standard demo tasks are running without error. */
		if( xAreGenericQueueTasksStillRunning() != pdTRUE )
		{
			/* Increase the rate at which this task cycles, which will increase the
			rate at which mainCHECK_LED flashes to give visual feedback that an error
			has occurred. */			
			pcStatusMessage = "Error: GenQueue";
			xPrintf( pcStatusMessage );
		}
		
		if( xAreQueuePeekTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: QueuePeek\r\n";
			xPrintf( pcStatusMessage );
		}
		
		if( xAreBlockingQueuesStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: BlockQueue\r\n";
			xPrintf( pcStatusMessage );
		}
		
		if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: BlockTime\r\n";
			xPrintf( pcStatusMessage );
		}
		
		if( xAreSemaphoreTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: SemTest\r\n";
			xPrintf( pcStatusMessage );
		}
		
		if( xArePollingQueuesStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: PollQueue\r\n";
			xPrintf( pcStatusMessage );
		}
		
		if( xIsCreateTaskStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: Death\r\n";
			xPrintf( pcStatusMessage );
		}
		
		if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: IntMath\r\n";
			xPrintf( pcStatusMessage );
		}
		
		if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: RecMutex\r\n";
			xPrintf( pcStatusMessage );
		}
		
		if( xAreIntQueueTasksStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: IntQueue\r\n";
			xPrintf( pcStatusMessage );
		}
		
		if( xAreMathsTaskStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: Flop\r\n";
			xPrintf( pcStatusMessage );
		}

		/* Check the reg test tasks are still cycling.  They will stop incrementing
		their loop counters if they encounter an error. */
		if( ulRegTest1CycleCount == ulLastRegTest1CycleCount )
		{
			pcStatusMessage = "Error: RegTest1\r\n";
			xPrintf( pcStatusMessage );
		}

		if( ulRegTest2CycleCount == ulLastRegTest2CycleCount )
		{
			pcStatusMessage = "Error: RegTest2\r\n";
			xPrintf( pcStatusMessage );
		}

		ulLastRegTest1CycleCount = ulRegTest1CycleCount;
		ulLastRegTest2CycleCount = ulRegTest2CycleCount;

		/* Toggle the check LED to give an indication of the system status.  If
		the LED toggles every 5 seconds then everything is ok.  A faster toggle
		indicates an error. */
		vParTestToggleLED( mainCHECK_LED );
		
		/* Ensure the LED toggles at a faster rate if an error has occurred. */
		if( pcStatusMessage != NULL )
		{
			xCycleFrequency = mainERROR_CYCLE_TIME;
		}
	}
}
Esempio n. 5
0
static void vCheckTask( void *pvParameters )
{
portBASE_TYPE xErrorOccurred = pdFALSE;
TickType_t xLastExecutionTime;
const char * const pcPassMessage = "PASS\n";
const char * const pcFailMessage = "FAIL\n";

	/* Just to remove compiler warnings. */
	( void ) pvParameters;

	/* Initialise xLastExecutionTime so the first call to vTaskDelayUntil()
	works correctly. */
	xLastExecutionTime = xTaskGetTickCount();

	for( ;; )
	{
		/* Perform this check every mainCHECK_DELAY milliseconds. */
		vTaskDelayUntil( &xLastExecutionTime, mainCHECK_DELAY );

		/* Has an error been found in any task? */

		if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
		{
			xErrorOccurred = pdTRUE;
		}

		if( xArePollingQueuesStillRunning() != pdTRUE )
		{
			xErrorOccurred = pdTRUE;
		}

		if( xAreSemaphoreTasksStillRunning() != pdTRUE )
		{
			xErrorOccurred = pdTRUE;
		}

		if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
		{
			xErrorOccurred = pdTRUE;
		}

		if( xAreBlockingQueuesStillRunning() != pdTRUE )
		{
			xErrorOccurred = pdTRUE;
		}

		#if configUSE_PREEMPTION == 1
		{
			/* The timing of console output when not using the preemptive
			scheduler causes the block time tests to detect a timing problem. */
			if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
			{
				xErrorOccurred = pdTRUE;
			}
		}
		#endif

		if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
		{
			xErrorOccurred = pdTRUE;
		}

		/* Send either a pass or fail message.  If an error is found it is
		never cleared again. */
		if( xErrorOccurred == pdTRUE )
		{
			xLED_Delay = mainERROR_LED_DELAY;
			xQueueSend( xPrintQueue, &pcFailMessage, portMAX_DELAY );
		}
		else
		{
			xQueueSend( xPrintQueue, &pcPassMessage, portMAX_DELAY );
		}
	}
}
Esempio n. 6
0
static void prvCheckTask( void *pvParameter )
{
portTickType xNextWakeTime, xCycleFrequency = mainNO_ERROR_CYCLE_TIME;
unsigned long ulLastRegTest1CycleCount = 0UL, ulLastRegTest2CycleCount = 0UL;

	/* Just to remove compiler warning. */
	( void ) pvParameter;

	/* Initialise xNextWakeTime - this only needs to be done once. */
	xNextWakeTime = xTaskGetTickCount();

	for( ;; )
	{
		/* Place this task in the blocked state until it is time to run again. */
		vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );
		
		/* Inspect all the other tasks to ensure none have experienced any errors. */
		if( xAreGenericQueueTasksStillRunning() != pdTRUE )
		{
			/* Increase the rate at which this task cycles, which will increase the
			rate at which mainCHECK_LED flashes to give visual feedback that an error
			has occurred. */
			xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in GenQ test.";
		}
		else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
		{
			xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in Queue Peek test.";
		}
		else if( xAreBlockingQueuesStillRunning() != pdTRUE )
		{
			xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in Blocking Queue test.";
		}
		else if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
		{
			xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in BlockTim test.";
		}
	    else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
	    {
	        xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in Semaphore test.";
	    }
	    else if( xArePollingQueuesStillRunning() != pdTRUE )
	    {
	        xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in Polling Queue test.";
	    }
	    else if( xIsCreateTaskStillRunning() != pdTRUE )
	    {
	        xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in Create test.";
	    }
	    else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
	    {
	        xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in integer Math test.";
	    }
	    else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
	    {
	    	xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in recursive mutex test.";
	    }
		else if( xAreMathsTaskStillRunning() != pdTRUE )
		{
			xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in floating point Math test.";
		}

		/* Check the reg test tasks are still cycling.  They will stop incrementing
		their loop counters if they encounter an error. */
		if( ulRegTest1CycleCount == ulLastRegTest1CycleCount )
		{
			xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in RegTest.";
		}

		if( ulRegTest2CycleCount == ulLastRegTest2CycleCount )
		{
			xCycleFrequency = mainERROR_CYCLE_TIME;
			pcStatusMessage = "Error in RegTest.";
		}
		
		ulLastRegTest1CycleCount = ulRegTest1CycleCount;
		ulLastRegTest2CycleCount = ulRegTest2CycleCount;
		
		/* Toggle the check LED to give an indication of the system status.  If the
		LED toggles every 5 seconds then everything is ok.  A faster toggle indicates
		an error. */
		vParTestToggleLED( mainCHECK_LED );
	}
}
Esempio n. 7
0
void vApplicationTickHook( void )
{
static xOLEDMessage xMessage = { "PASS" };
static unsigned long ulTicksSinceLastDisplay = 0;
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;

	/* Called from every tick interrupt.  Have enough ticks passed to make it
	time to perform our health status check again? */
	ulTicksSinceLastDisplay++;
	if( ulTicksSinceLastDisplay >= mainCHECK_DELAY )
	{
		ulTicksSinceLastDisplay = 0;

		/* Has an error been found in any task? */
		if( xAreGenericQueueTasksStillRunning() != pdTRUE )
		{
			xMessage.pcMessage = "ERROR IN GEN Q";
		}
		else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
		{
			xMessage.pcMessage = "ERROR IN PEEK Q";
		}
		else if( xAreBlockingQueuesStillRunning() != pdTRUE )
		{
			xMessage.pcMessage = "ERROR IN BLOCK Q";
		}
		else if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
		{
			xMessage.pcMessage = "ERROR IN BLOCK TIME";
		}
	    else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
	    {
	        xMessage.pcMessage = "ERROR IN SEMAPHORE";
	    }
	    else if( xArePollingQueuesStillRunning() != pdTRUE )
	    {
	        xMessage.pcMessage = "ERROR IN POLL Q";
	    }
	    else if( xIsCreateTaskStillRunning() != pdTRUE )
	    {
	        xMessage.pcMessage = "ERROR IN CREATE";
	    }
	    else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
	    {
	        xMessage.pcMessage = "ERROR IN MATH";
	    }
	    else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
	    {
	    	xMessage.pcMessage = "ERROR IN REC MUTEX";
	    }
		else if( ulIdleError != pdFALSE )
		{
			xMessage.pcMessage = "ERROR IN HOOK";
		}
		else if( xAreIntQueueTasksStillRunning() != pdTRUE )
		{
			xMessage.pcMessage = "ERROR IN INT QUEUE";
		}


		/* Send the message to the OLED gatekeeper for display. */
		xHigherPriorityTaskWoken = pdFALSE;
		xQueueSendFromISR( xOLEDQueue, &xMessage, &xHigherPriorityTaskWoken );
	}
}
Esempio n. 8
0
File: main.c Progetto: wugsh/wgs
void vCheckTask( void *pvParameters )
{
unsigned long ulRow = 0;
TickType_t xDelay = 0;
unsigned short usErrorCode = 0;
unsigned long ulIteration = 0;
extern unsigned short usMaxJitter;

	/* Intialise the sleeper. */
	xDelay = xTaskGetTickCount();

	for( ;; )
	{
		/* Perform this check every mainCHECK_DELAY milliseconds. */
		vTaskDelayUntil( &xDelay, mainCHECK_DELAY );

		/* Check that all of the Demo tasks are still running. */
		if( pdTRUE != xAreBlockingQueuesStillRunning() )
		{
			usErrorCode |= 0x1;
		}

		if( pdTRUE != xAreBlockTimeTestTasksStillRunning() )
		{
			usErrorCode |= 0x2;
		}

		if( pdTRUE != xAreCountingSemaphoreTasksStillRunning() )
		{
			usErrorCode |= 0x4;
		}

		if( pdTRUE != xIsCreateTaskStillRunning() )
		{
			usErrorCode |= 0x8;
		}

		if( pdTRUE != xAreDynamicPriorityTasksStillRunning() )
		{
			usErrorCode |= 0x10;
		}

		if( pdTRUE != xAreMathsTaskStillRunning() )
		{
			usErrorCode |= 0x20;
		}

		if( pdTRUE != xAreGenericQueueTasksStillRunning() )
		{
			usErrorCode |= 0x40;
		}

		if( pdTRUE != xAreIntegerMathsTaskStillRunning() )
		{
			usErrorCode |= 0x80;
		}

		if( pdTRUE != xArePollingQueuesStillRunning() )
		{
			usErrorCode |= 0x100;
		}

		if( pdTRUE != xAreQueuePeekTasksStillRunning() )
		{
			usErrorCode |= 0x200;
		}

		if( pdTRUE != xAreSemaphoreTasksStillRunning() )
		{
			usErrorCode |= 0x400;
		}

		if( pdTRUE != xAreComTestTasksStillRunning() )
		{
			usErrorCode |= 0x800;
		}

		if( pdTRUE != xAreIntQueueTasksStillRunning() )
		{
			usErrorCode |= 0x1000;
		}

		/* Clear the display. */
		LCD_Character_Display_ClearDisplay();
		if( 0 == usErrorCode )
		{
			LCD_Character_Display_Position( ( ulRow ) & 0x1, 0);
			LCD_Character_Display_PrintString( "Pass: " );
			LCD_Character_Display_PrintNumber( ulIteration++ );
			LCD_Character_Display_Position( ( ++ulRow ) & 0x1, 0 );
			LCD_Character_Display_PrintString( "Jitter(ns):" );
			LCD_Character_Display_PrintNumber( ( usMaxJitter * mainNS_PER_CLOCK ) );
		}
		else
		{
			/* Do something to indicate the failure. */
			LCD_Character_Display_Position( ( ulRow ) & 0x1, 0 );
			LCD_Character_Display_PrintString( "Fail at: " );
			LCD_Character_Display_PrintNumber( ulIteration );
			LCD_Character_Display_Position( ( ++ulRow ) & 0x1, 0 );
			LCD_Character_Display_PrintString( "Error: 0x" );
			LCD_Character_Display_PrintHexUint16( usErrorCode );
		}
	}
}
Esempio n. 9
0
static void prvCheckTask( void * pvParameters )
{
portTickType xNextWakeTime, xPeriod = mainNO_ERROR_PERIOD;
static volatile unsigned long ulErrorCode = 0UL;

	/* Just to remove the compiler warning. */
	( void ) pvParameters;

	/* Initialise xNextWakeTime prior to its first use.  From this point on
	the value of the variable is handled automatically by the kernel. */
	xNextWakeTime = xTaskGetTickCount();
	
	for( ;; )
	{
		/* Delay until it is time for this task to execute again. */
		vTaskDelayUntil( &xNextWakeTime, xPeriod );
		
		/* Check all the other tasks in the system - latch any reported errors
		into the ulErrorCode variable. */
		if( xAreBlockingQueuesStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x01UL;
		}

		if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x02UL;
		}

		if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x04UL;
		}

		if( xIsCreateTaskStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x08UL;
		}

		if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x10UL;
		}

		if( xAreGenericQueueTasksStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x20UL;
		}

		if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x40UL;
		}

		if( xArePollingQueuesStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x80UL;
		}

		if( xAreQueuePeekTasksStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x100UL;
		}

		if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x200UL;
		}

		if( xAreSemaphoreTasksStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x400UL;
		}
		
		if( xAreComTestTasksStillRunning() != pdTRUE )
		{
			ulErrorCode |= 0x800UL;
		}
		
		/* Reduce the block period and in so doing increase the frequency at
		which this task executes if any errors have been latched.  The increased
		frequency causes the LED toggle rate to increase and so gives some
		visual feedback that an error has occurred. */
		if( ulErrorCode != 0x00 )
		{
			xPeriod = mainERROR_PERIOD;
		}
		
		/* Finally toggle the LED. */
		vParTestToggleLED( LED_POWER );
	}
}
Esempio n. 10
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/*
 * See the documentation at the top of this file. 
 */
static void vErrorChecks( void *pvParameters )
{
portBASE_TYPE xErrorHasOccurred = pdFALSE;
	
	/* Just to prevent compiler warnings. */
	( void ) pvParameters;
	
	/* Cycle for ever, delaying then checking all the other tasks are still
	operating without error.   The delay period depends on whether an error
	has ever been detected. */
	for( ;; )
	{
		if( xLatchedError == pdFALSE )
		{		
			/* No errors have been detected so delay for a longer period.  The
			on board LED will get toggled every mainNO_ERROR_FLASH_PERIOD ms. */
			vTaskDelay( mainNO_ERROR_FLASH_PERIOD );
		}
		else
		{
			/* We have at some time recognised an error in one of the demo
			application tasks, delay for a shorter period.  The on board LED
			will get toggled every mainERROR_FLASH_PERIOD ms. */
			vTaskDelay( mainERROR_FLASH_PERIOD );
		}

		
		
		/* Check the demo application tasks for errors. */

		if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
		{
			xErrorHasOccurred = pdTRUE;
		}

		if( xArePollingQueuesStillRunning() != pdTRUE )
		{
			xErrorHasOccurred = pdTRUE;
		}

		if( xAreComTestTasksStillRunning() != pdTRUE )
		{
			xErrorHasOccurred = pdTRUE;
		}

		if( xAreSemaphoreTasksStillRunning() != pdTRUE )
		{
			xErrorHasOccurred = pdTRUE;
		}

		/* If an error has occurred, latch it to cause the LED flash rate to 
		increase. */
		if( xErrorHasOccurred == pdTRUE )
		{
			xLatchedError = pdTRUE;
		}

		/* Toggle the LED to indicate the completion of a check cycle.  The
		frequency of check cycles is dependent on whether or not we have 
		latched an error. */
		prvToggleOnBoardLED();
	}
}
Esempio n. 11
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static void prvCheckTimerCallback( TimerHandle_t xTimer )
{
static long lChangedTimerPeriodAlready = pdFALSE;
unsigned long ulErrorFound = pdFALSE;

	/* Check all the demo tasks (other than the flash tasks) to ensure
	they are all still running, and that none have detected an error. */

	if( xAreIntQueueTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 0UL;
	}

	if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 1UL;
	}

	if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 2UL;
	}

	if( xAreBlockingQueuesStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 3UL;
	}

	if ( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 4UL;
	}

	if ( xAreGenericQueueTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 5UL;
	}

	if ( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 6UL;
	}

	if( xIsCreateTaskStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 7UL;
	}

	if( xArePollingQueuesStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 8UL;
	}

	if( xAreSemaphoreTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 9UL;
	}

	if( xAreComTestTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 10UL;
	}

	if( xAreQueueSetTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 11UL;
	}
	
	if( xAreTaskNotificationTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 12UL;
	}
	
	if( xAreTimerDemoTasksStillRunning( mainCHECK_TIMER_PERIOD_MS ) != pdTRUE )
	{
		ulErrorFound |= 1UL << 13UL;
	}
	
	if( xAreEventGroupTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 14UL;
	}
	
	if( xAreInterruptSemaphoreTasksStillRunning() != pdTRUE )
	{
		ulErrorFound |= 1UL << 15UL;
	}
	

	/* Toggle the check LED to give an indication of the system status.  If
	the LED toggles every mainCHECK_TIMER_PERIOD_MS milliseconds then
	everything is ok.  A faster toggle indicates an error. */
	vParTestToggleLED( mainCHECK_LED );

	/* Have any errors been latch in ulErrorFound?  If so, shorten the
	period of the check timer to mainERROR_CHECK_TIMER_PERIOD_MS milliseconds.
	This will result in an increase in the rate at which mainCHECK_LED
	toggles. */
	if( ulErrorFound != pdFALSE )
	{
		if( lChangedTimerPeriodAlready == pdFALSE )
		{
			lChangedTimerPeriodAlready = pdTRUE;

			/* This call to xTimerChangePeriod() uses a zero block time.
			Functions called from inside of a timer callback function must
			*never* attempt	to block. */
			xTimerChangePeriod( xTimer, ( mainERROR_CHECK_TIMER_PERIOD_MS ), mainDONT_BLOCK );
		}
	}
}
Esempio n. 12
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static void prvCheckTask( void *pvParameters )
{
portTickType xNextWakeTime;
const portTickType xCycleFrequency = 1000 / portTICK_RATE_MS;

	/* Just to remove compiler warning. */
	( void ) pvParameters;

	/* Initialise xNextWakeTime - this only needs to be done once. */
	xNextWakeTime = xTaskGetTickCount();

	for( ;; )
	{
		/* Place this task in the blocked state until it is time to run again. */
		vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );

		/* Check the standard demo tasks are running without error. */
		if( xAreTimerDemoTasksStillRunning( xCycleFrequency ) != pdTRUE )
		{
			pcStatusMessage = "Error: TimerDemo";
		}
	    else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
	    {
			pcStatusMessage = "Error: IntMath";
	    }	
		else if( xAreGenericQueueTasksStillRunning() != pdTRUE )
		{			
			pcStatusMessage = "Error: GenQueue";
		}
		else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: QueuePeek";
		}
		else if( xAreBlockingQueuesStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: BlockQueue";
		}
	    else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
	    {
			pcStatusMessage = "Error: SemTest";
	    }
	    else if( xArePollingQueuesStillRunning() != pdTRUE )
	    {
			pcStatusMessage = "Error: PollQueue";
	    }
		else if( xAreMathsTaskStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: Flop";
		}
	    else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
	    {
			pcStatusMessage = "Error: RecMutex";
		}
		else if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: CountSem";
		}
		else if( xIsCreateTaskStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: Death";
		}
		else if( xAreDynamicPriorityTasksStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: Dynamic\r\n";
		}
		else if( xAreQueueSetTasksStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: Queue set\r\n";
		}
		else if( xIsQueueOverwriteTaskStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: Queue overwrite\r\n";
		}

		/* This is the only task that uses stdout so its ok to call printf() 
		directly. */
		printf( "%s - %d\r\n", pcStatusMessage, xTaskGetTickCount() );
	}
}
Esempio n. 13
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static void vCheckTask( void *pvParameters )
{
static unsigned long ulErrorDetected = pdFALSE;	
portTickType xLastExecutionTime;
unsigned char *ucErrorMessage = ( unsigned char * )"              FAIL";
unsigned char *ucSuccessMessage = ( unsigned char * )"              PASS";
unsigned portBASE_TYPE uxColumn = mainMAX_WRITE_COLUMN;
LCDMessage xMessage;

	/* Initialise xLastExecutionTime so the first call to vTaskDelayUntil()
	works correctly. */
	xLastExecutionTime = xTaskGetTickCount();

	for( ;; )
	{
		/* Wait until it is time for the next cycle. */
		vTaskDelayUntil( &xLastExecutionTime, mainCHECK_TASK_CYCLE_TIME );

		/* Has an error been found in any of the standard demo tasks? */
		
		if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
		{
			ulErrorDetected = pdTRUE;
		}

		if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
		{
			ulErrorDetected = pdTRUE;
		}

		if( xAreBlockingQueuesStillRunning() != pdTRUE )
		{
			ulErrorDetected = pdTRUE;
		}
		
		if( xAreComTestTasksStillRunning() != pdTRUE )
		{
			ulErrorDetected = pdTRUE;
		}		
		
		if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
		{
			ulErrorDetected = pdTRUE;
		}		
	
		/* Calculate the LCD line on which we would like the message to
		be displayed.  The column variable is used for convenience as
		it is incremented each cycle anyway. */
		xMessage.ucLine = ( unsigned char ) ( uxColumn & 0x01 );

		/* The message displayed depends on whether an error was found or
		not.  Any discovered error is latched.  Here the column variable
		is used as an index into the text string as a simple way of moving
		the text from column to column. */		
		if( ulErrorDetected == pdFALSE )
		{
			xMessage.pucString = ucSuccessMessage + uxColumn;
		}
		else
		{
			xMessage.pucString = ucErrorMessage + uxColumn;			
		}		

		/* Send the message to the print task for display. */
		xQueueSend( xLCDQueue, ( void * ) &xMessage, mainNO_DELAY );
		
		/* Make sure the message is printed in a different column the next
		time around. */
		uxColumn--;
		if( uxColumn == 0 )
		{
			uxColumn = mainMAX_WRITE_COLUMN;
		}
	}
}
Esempio n. 14
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static portSHORT prvCheckOtherTasksAreStillRunning( void )
{
portBASE_TYPE lReturn = pdPASS;

	/* The demo tasks maintain a count that increments every cycle of the task
	provided that the task has never encountered an error.  This function 
	checks the counts maintained by the tasks to ensure they are still being
	incremented.  A count remaining at the same value between calls therefore
	indicates that an error has been detected. */

	if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	if( xAreComTestTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}
	
	if( xAreSemaphoreTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}
	
	if( xAreBlockingQueuesStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}
	
	if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}
	
	if( xAreMathsTaskStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}
	
	if( xIsCreateTaskStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}
	
	if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}
	
	if ( xAreGenericQueueTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}
	
	if ( xAreQueuePeekTasksStillRunning() != pdTRUE )
	{
		lReturn = pdFAIL;
	}

	/* Have the register test tasks found any errors? */
	if( ulRegTestError != pdFALSE )
	{
		lReturn = pdFAIL;
	}

	return lReturn;
}
Esempio n. 15
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static void prvCheckTask( void *pvParameters )
{
TickType_t xNextWakeTime;
const TickType_t xCycleFrequency = 2500 / portTICK_PERIOD_MS;

	/* Just to remove compiler warning. */
	( void ) pvParameters;

	/* Initialise xNextWakeTime - this only needs to be done once. */
	xNextWakeTime = xTaskGetTickCount();

	for( ;; )
	{
		/* Place this task in the blocked state until it is time to run again. */
		vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );

		/* Check the standard demo tasks are running without error. */
		#if( configUSE_PREEMPTION != 0 )
		{
			/* These tasks are only created when preemption is used. */
			if( xAreTimerDemoTasksStillRunning( xCycleFrequency ) != pdTRUE )
			{
				pcStatusMessage = "Error: TimerDemo";
			}
		}
		#endif

		if( xAreEventGroupTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: EventGroup";
		}
	    else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
	    {
			pcStatusMessage = "Error: IntMath";
	    }
		else if( xAreGenericQueueTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: GenQueue";
		}
		else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: QueuePeek";
		}
		else if( xAreBlockingQueuesStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: BlockQueue";
		}
	    else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
	    {
			pcStatusMessage = "Error: SemTest";
	    }
	    else if( xArePollingQueuesStillRunning() != pdTRUE )
	    {
			pcStatusMessage = "Error: PollQueue";
	    }
		else if( xAreMathsTaskStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: Flop";
		}
	    else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
	    {
			pcStatusMessage = "Error: RecMutex";
		}
		else if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: CountSem";
		}
		else if( xIsCreateTaskStillRunning() != pdTRUE )
		{
			pcStatusMessage = "Error: Death";
		}
		else if( xAreDynamicPriorityTasksStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: Dynamic";
		}
		else if( xAreQueueSetTasksStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: Queue set";
		}
		else if( xIsQueueOverwriteTaskStillRunning() != pdPASS )
		{
			pcStatusMessage = "Error: Queue overwrite";
		}

		/* This is the only task that uses stdout so its ok to call printf()
		directly. */
		printf( ( char * ) "%s - %u\r\n", pcStatusMessage, ( unsigned int ) xTaskGetTickCount() );
		fflush( stdout );
	}
}