static void prvQueueReceiveTask( void *pvParameters )
{
unsigned long ulReceivedValue;
/* Check the task parameter is as expected. */
configASSERT( ( ( unsigned long ) pvParameters ) == mainQUEUE_RECEIVE_PARAMETER );
for( ;; )
{
/* Wait until something arrives in the queue - this task will block
indefinitely provided INCLUDE_vTaskSuspend is set to 1 in
FreeRTOSConfig.h. */
xQueueReceive( xQueue, &ulReceivedValue, portMAX_DELAY );
/* To get here something must have been received from the queue, but
is it the expected value? If it is, toggle the LED. */
if( ulReceivedValue == 100UL )
{
vMainToggleLED();
ulReceivedValue = 0U;
}
}
}
/* See the description at the top of this file. */
static void prvCheckTimerCallback( xTimerHandle xTimer )
{
static long lChangedTimerPeriodAlready = pdFALSE;
static unsigned long ulLastRegTest1Value = 0, ulLastRegTest2Value = 0;
unsigned long ulErrorFound = pdFALSE;
/* Check all the demo and test tasks to ensure that they are all still
running, and that none have detected an error. */
if( xAreIntQueueTasksStillRunning() != pdPASS )
{
ulErrorFound |= ( 0x01UL << 0UL );
}
if( xAreBlockTimeTestTasksStillRunning() != pdPASS )
{
ulErrorFound |= ( 0x01UL << 1UL );
}
if( xAreCountingSemaphoreTasksStillRunning() != pdPASS )
{
ulErrorFound |= ( 0x01UL << 2UL );
}
if( xAreRecursiveMutexTasksStillRunning() != pdPASS )
{
ulErrorFound |= ( 0x01UL << 3UL );
}
/* Check that the register test 1 task is still running. */
if( ulLastRegTest1Value == ulRegTest1LoopCounter )
{
ulErrorFound |= ( 0x01UL << 4UL );
}
ulLastRegTest1Value = ulRegTest1LoopCounter;
/* Check that the register test 2 task is still running. */
if( ulLastRegTest2Value == ulRegTest2LoopCounter )
{
ulErrorFound |= ( 0x01UL << 5UL );
}
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. */
vMainToggleLED();
/* Have any errors been latched 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 );
}
}
}
