@ -69,13 +69,20 @@
/* Standard demo includes. */
# include "dynamic.h"
# include "PollQ.h"
# include " semtest .h"
# include " blocktim .h"
/* The period at which the check timer will expire, in ms, provided no errors
have been reported by any of the standard demo tasks . ms are converted to the
equivalent in ticks using the portTICK_RATE_MS constant . */
# define mainCHECK_TIMER_PERIOD_MS ( 3000UL / portTICK_RATE_MS )
/* These are used to set the period of the demo timer. The demo timer period
is always relative to the check timer period , so the check timer can determine
if the demo timer has expired the expected number of times between its own
executions . */
# define mainDEMO_TIMER_INCREMENTS_PER_CHECK_TIMER_TIMEROUT ( 100UL )
# define mainDEMO_TIMER_PERIOD_MS ( mainCHECK_TIMER_PERIOD_MS / mainDEMO_TIMER_INCREMENTS_PER_CHECK_TIMER_TIMEROUT )
/* The period at which the check timer will expire, in ms, if an error has been
reported in one of the standard demo tasks . ms are converted to the equivalent
in ticks using the portTICK_RATE_MS constant . */
@ -94,6 +101,11 @@ in ticks using the portTICK_RATE_MS constant. */
*/
static void prvCheckTimerCallback ( xTimerHandle xTimer ) ;
/*
* The ' demo ' timer callback function , as described at the top of this file .
*/
static void prvDemoTimerCallback ( xTimerHandle xTimer ) ;
/*
* This function is called from the C startup routine to setup the processor -
* in particular the clock source .
@ -118,6 +130,12 @@ static short sRegTestStatus = pdPASS;
function . */
static xTimerHandle xCheckTimer = NULL ;
/* This time is just for demo purposes. */
static xTimerHandle xDemoTimer = NULL ;
/* This variable is incremented each time the demo timer expires. */
static volatile unsigned long ulDemoTimerCounter = 0UL ;
/* RL78/G13 Option Byte Definition. Watchdog disabled, LVI enabled, OCD interface
enabled . */
__root __far const unsigned char OptionByte [ ] @ 0x00C0 =
@ -142,7 +160,7 @@ short main( void )
is provided on the FreeRTOS . org WEB site . */
vStartDynamicPriorityTasks ( ) ;
vStartPolledQueueTasks ( tskIDLE_PRIORITY ) ;
v StartSemaphoreTasks( tskIDLE_PRIORITY + 1U ) ;
v CreateBlockTimeTasks( ) ;
/* Create the RegTest tasks as described at the top of this file. */
xTaskCreate ( vRegTest1 , " Reg1 " , configMINIMAL_STACK_SIZE , NULL , 0 , NULL ) ;
@ -157,10 +175,19 @@ short main( void )
prvCheckTimerCallback /* The callback function that inspects the status of all the other tasks. */
) ;
/* Create the software timer that just increments a variable for demo
purposes . */
xDemoTimer = xTimerCreate ( ( const signed char * ) " DemoTimer " , /* A text name, purely to help debugging. */
( mainDEMO_TIMER_PERIOD_MS ) , /* The timer period, in this case it is always calculated relative to the check timer period (see the definition of mainDEMO_TIMER_PERIOD_MS). */
pdTRUE , /* This is an auto-reload timer, so xAutoReload is set to pdTRUE. */
( void * ) 0 , /* The ID is not used, so can be set to anything. */
prvDemoTimerCallback /* The callback function that inspects the status of all the other tasks. */
) ;
/* Send a command to start the check timer. It will not actually start
until the scheduler is running ( when vTaskStartScheduler ( ) is called ) . */
/* S tart both the check timer and the demo timer. The timers won't actually
start until the scheduler is . */
xTimerStart ( xCheckTimer , mainDONT_BLOCK ) ;
xTimerStart ( xDemoTimer , mainDONT_BLOCK ) ;
/* Finally start the scheduler running. */
vTaskStartScheduler ( ) ;
@ -171,9 +198,20 @@ short main( void )
}
/*-----------------------------------------------------------*/
static void prvDemoTimerCallback ( xTimerHandle xTimer )
{
/* The demo timer has expired. All it does is increment a variable. The
period of the demo timer is relative to that of the check timer , so the
check timer knows how many times this variable should have been incremented
between each execution of the check timer ' s own callback . */
ulDemoTimerCounter + + ;
}
/*-----------------------------------------------------------*/
static void prvCheckTimerCallback ( xTimerHandle xTimer )
{
static portBASE_TYPE xChangedTimerPeriodAlready = pdFALSE , xErrorStatus = pdPASS ;
static unsigned long ulLastDemoTimerCounter = 0UL ;
if ( xAreDynamicPriorityTasksStillRunning ( ) ! = pdTRUE )
{
@ -185,7 +223,7 @@ static portBASE_TYPE xChangedTimerPeriodAlready = pdFALSE, xErrorStatus = pdPASS
xErrorStatus = pdFAIL ;
}
if ( xAre Semaphore TasksStillRunning( ) ! = pdTRUE )
if ( xAre BlockTimeTest TasksStillRunning( ) ! = pdTRUE )
{
xErrorStatus = pdFAIL ;
}
@ -195,6 +233,16 @@ static portBASE_TYPE xChangedTimerPeriodAlready = pdFALSE, xErrorStatus = pdPASS
xErrorStatus = pdFAIL ;
}
/* Ensure that the demo timer has expired at
mainDEMO_TIMER_INCREMENTS_PER_CHECK_TIMER_TIMEROUT times in between
each call of this function . */
if ( ( ulDemoTimerCounter - ulLastDemoTimerCounter ) < ( mainDEMO_TIMER_INCREMENTS_PER_CHECK_TIMER_TIMEROUT - 1 ) )
{
xErrorStatus = pdFAIL ;
}
ulLastDemoTimerCounter = ulDemoTimerCounter ;
if ( ( xErrorStatus = = pdFAIL ) & & ( xChangedTimerPeriodAlready = = pdFALSE ) )
{
/* An error has occurred, but the timer's period has not yet been changed,
Richard Barry
14 years ago