diff options
Diffstat (limited to 'FreeRTOS/Demo/Common/Minimal/sp_flop.c')
| -rw-r--r-- | FreeRTOS/Demo/Common/Minimal/sp_flop.c | 468 |
1 files changed, 233 insertions, 235 deletions
diff --git a/FreeRTOS/Demo/Common/Minimal/sp_flop.c b/FreeRTOS/Demo/Common/Minimal/sp_flop.c index 725e603ce..faf7b44f4 100644 --- a/FreeRTOS/Demo/Common/Minimal/sp_flop.c +++ b/FreeRTOS/Demo/Common/Minimal/sp_flop.c @@ -48,254 +48,255 @@ /* Demo program include files. */
#include "flop.h"
-#define mathSTACK_SIZE configMINIMAL_STACK_SIZE
-#define mathNUMBER_OF_TASKS ( 8 )
+#define mathSTACK_SIZE configMINIMAL_STACK_SIZE
+#define mathNUMBER_OF_TASKS ( 8 )
/* Four tasks, each of which performs a different floating point calculation.
-Each of the four is created twice. */
+ * Each of the four is created twice. */
static portTASK_FUNCTION_PROTO( vCompetingMathTask1, pvParameters );
static portTASK_FUNCTION_PROTO( vCompetingMathTask2, pvParameters );
static portTASK_FUNCTION_PROTO( vCompetingMathTask3, pvParameters );
static portTASK_FUNCTION_PROTO( vCompetingMathTask4, pvParameters );
/* These variables are used to check that all the tasks are still running. If a
-task gets a calculation wrong it will
-stop incrementing its check variable. */
+ * task gets a calculation wrong it will
+ * stop incrementing its check variable. */
static volatile uint16_t usTaskCheck[ mathNUMBER_OF_TASKS ] = { ( uint16_t ) 0 };
/*-----------------------------------------------------------*/
void vStartMathTasks( UBaseType_t uxPriority )
{
- xTaskCreate( vCompetingMathTask1, "Math1", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 0 ] ), uxPriority, NULL );
- xTaskCreate( vCompetingMathTask2, "Math2", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 1 ] ), uxPriority, NULL );
- xTaskCreate( vCompetingMathTask3, "Math3", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 2 ] ), uxPriority, NULL );
- xTaskCreate( vCompetingMathTask4, "Math4", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 3 ] ), uxPriority, NULL );
- xTaskCreate( vCompetingMathTask1, "Math5", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 4 ] ), uxPriority, NULL );
- xTaskCreate( vCompetingMathTask2, "Math6", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 5 ] ), uxPriority, NULL );
- xTaskCreate( vCompetingMathTask3, "Math7", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 6 ] ), uxPriority, NULL );
- xTaskCreate( vCompetingMathTask4, "Math8", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 7 ] ), uxPriority, NULL );
+ xTaskCreate( vCompetingMathTask1, "Math1", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 0 ] ), uxPriority, NULL );
+ xTaskCreate( vCompetingMathTask2, "Math2", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 1 ] ), uxPriority, NULL );
+ xTaskCreate( vCompetingMathTask3, "Math3", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 2 ] ), uxPriority, NULL );
+ xTaskCreate( vCompetingMathTask4, "Math4", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 3 ] ), uxPriority, NULL );
+ xTaskCreate( vCompetingMathTask1, "Math5", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 4 ] ), uxPriority, NULL );
+ xTaskCreate( vCompetingMathTask2, "Math6", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 5 ] ), uxPriority, NULL );
+ xTaskCreate( vCompetingMathTask3, "Math7", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 6 ] ), uxPriority, NULL );
+ xTaskCreate( vCompetingMathTask4, "Math8", mathSTACK_SIZE, ( void * ) &( usTaskCheck[ 7 ] ), uxPriority, NULL );
}
/*-----------------------------------------------------------*/
static portTASK_FUNCTION( vCompetingMathTask1, pvParameters )
{
-volatile float f1, f2, f3, f4;
-volatile uint16_t *pusTaskCheckVariable;
-volatile float fAnswer;
-short sError = pdFALSE;
-
- f1 = 123.4567F;
- f2 = 2345.6789F;
- f3 = -918.222F;
-
- fAnswer = ( f1 + f2 ) * f3;
-
- /* The variable this task increments to show it is still running is passed in
- as the parameter. */
- pusTaskCheckVariable = ( uint16_t * ) pvParameters;
-
- /* Keep performing a calculation and checking the result against a constant. */
- for(;;)
- {
- f1 = 123.4567F;
- f2 = 2345.6789F;
- f3 = -918.222F;
-
- f4 = ( f1 + f2 ) * f3;
-
- #if configUSE_PREEMPTION == 0
- taskYIELD();
- #endif
-
- /* If the calculation does not match the expected constant, stop the
- increment of the check variable. */
- if( fabs( f4 - fAnswer ) > 0.001F )
- {
- sError = pdTRUE;
- }
-
- if( sError == pdFALSE )
- {
- /* If the calculation has always been correct, increment the check
- variable so we know this task is still running okay. */
- ( *pusTaskCheckVariable )++;
- }
-
- #if configUSE_PREEMPTION == 0
- taskYIELD();
- #endif
-
- }
+ volatile float f1, f2, f3, f4;
+ volatile uint16_t * pusTaskCheckVariable;
+ volatile float fAnswer;
+ short sError = pdFALSE;
+
+ f1 = 123.4567F;
+ f2 = 2345.6789F;
+ f3 = -918.222F;
+
+ fAnswer = ( f1 + f2 ) * f3;
+
+ /* The variable this task increments to show it is still running is passed in
+ * as the parameter. */
+ pusTaskCheckVariable = ( uint16_t * ) pvParameters;
+
+ /* Keep performing a calculation and checking the result against a constant. */
+ for( ; ; )
+ {
+ f1 = 123.4567F;
+ f2 = 2345.6789F;
+ f3 = -918.222F;
+
+ f4 = ( f1 + f2 ) * f3;
+
+ #if configUSE_PREEMPTION == 0
+ taskYIELD();
+ #endif
+
+ /* If the calculation does not match the expected constant, stop the
+ * increment of the check variable. */
+ if( fabs( f4 - fAnswer ) > 0.001F )
+ {
+ sError = pdTRUE;
+ }
+
+ if( sError == pdFALSE )
+ {
+ /* If the calculation has always been correct, increment the check
+ * variable so we know this task is still running okay. */
+ ( *pusTaskCheckVariable )++;
+ }
+
+ #if configUSE_PREEMPTION == 0
+ taskYIELD();
+ #endif
+ }
}
/*-----------------------------------------------------------*/
static portTASK_FUNCTION( vCompetingMathTask2, pvParameters )
{
-volatile float f1, f2, f3, f4;
-volatile uint16_t *pusTaskCheckVariable;
-volatile float fAnswer;
-short sError = pdFALSE;
-
- f1 = -389.38F;
- f2 = 32498.2F;
- f3 = -2.0001F;
-
- fAnswer = ( f1 / f2 ) * f3;
-
-
- /* The variable this task increments to show it is still running is passed in
- as the parameter. */
- pusTaskCheckVariable = ( uint16_t * ) pvParameters;
-
- /* Keep performing a calculation and checking the result against a constant. */
- for( ;; )
- {
- f1 = -389.38F;
- f2 = 32498.2F;
- f3 = -2.0001F;
-
- f4 = ( f1 / f2 ) * f3;
-
- #if configUSE_PREEMPTION == 0
- taskYIELD();
- #endif
-
- /* If the calculation does not match the expected constant, stop the
- increment of the check variable. */
- if( fabs( f4 - fAnswer ) > 0.001F )
- {
- sError = pdTRUE;
- }
-
- if( sError == pdFALSE )
- {
- /* If the calculation has always been correct, increment the check
- variable so we know
- this task is still running okay. */
- ( *pusTaskCheckVariable )++;
- }
-
- #if configUSE_PREEMPTION == 0
- taskYIELD();
- #endif
- }
+ volatile float f1, f2, f3, f4;
+ volatile uint16_t * pusTaskCheckVariable;
+ volatile float fAnswer;
+ short sError = pdFALSE;
+
+ f1 = -389.38F;
+ f2 = 32498.2F;
+ f3 = -2.0001F;
+
+ fAnswer = ( f1 / f2 ) * f3;
+
+
+ /* The variable this task increments to show it is still running is passed in
+ * as the parameter. */
+ pusTaskCheckVariable = ( uint16_t * ) pvParameters;
+
+ /* Keep performing a calculation and checking the result against a constant. */
+ for( ; ; )
+ {
+ f1 = -389.38F;
+ f2 = 32498.2F;
+ f3 = -2.0001F;
+
+ f4 = ( f1 / f2 ) * f3;
+
+ #if configUSE_PREEMPTION == 0
+ taskYIELD();
+ #endif
+
+ /* If the calculation does not match the expected constant, stop the
+ * increment of the check variable. */
+ if( fabs( f4 - fAnswer ) > 0.001F )
+ {
+ sError = pdTRUE;
+ }
+
+ if( sError == pdFALSE )
+ {
+ /* If the calculation has always been correct, increment the check
+ * variable so we know
+ * this task is still running okay. */
+ ( *pusTaskCheckVariable )++;
+ }
+
+ #if configUSE_PREEMPTION == 0
+ taskYIELD();
+ #endif
+ }
}
/*-----------------------------------------------------------*/
static portTASK_FUNCTION( vCompetingMathTask3, pvParameters )
{
-volatile float *pfArray, fTotal1, fTotal2, fDifference, fPosition;
-volatile uint16_t *pusTaskCheckVariable;
-const size_t xArraySize = 10;
-size_t xPosition;
-short sError = pdFALSE;
-
- /* The variable this task increments to show it is still running is passed in
- as the parameter. */
- pusTaskCheckVariable = ( uint16_t * ) pvParameters;
-
- pfArray = ( float * ) pvPortMalloc( xArraySize * sizeof( float ) );
-
- /* Keep filling an array, keeping a running total of the values placed in the
- array. Then run through the array adding up all the values. If the two totals
- do not match, stop the check variable from incrementing. */
- for( ;; )
- {
- fTotal1 = 0.0F;
- fTotal2 = 0.0F;
- fPosition = 0.0F;
-
- for( xPosition = 0; xPosition < xArraySize; xPosition++ )
- {
- pfArray[ xPosition ] = fPosition + 5.5F;
- fTotal1 += fPosition + 5.5F;
- }
-
- #if configUSE_PREEMPTION == 0
- taskYIELD();
- #endif
-
- for( xPosition = 0; xPosition < xArraySize; xPosition++ )
- {
- fTotal2 += pfArray[ xPosition ];
- }
-
- fDifference = fTotal1 - fTotal2;
- if( fabs( fDifference ) > 0.001F )
- {
- sError = pdTRUE;
- }
-
- #if configUSE_PREEMPTION == 0
- taskYIELD();
- #endif
-
- if( sError == pdFALSE )
- {
- /* If the calculation has always been correct, increment the check
- variable so we know this task is still running okay. */
- ( *pusTaskCheckVariable )++;
- }
- }
+ volatile float * pfArray, fTotal1, fTotal2, fDifference, fPosition;
+ volatile uint16_t * pusTaskCheckVariable;
+ const size_t xArraySize = 10;
+ size_t xPosition;
+ short sError = pdFALSE;
+
+ /* The variable this task increments to show it is still running is passed in
+ * as the parameter. */
+ pusTaskCheckVariable = ( uint16_t * ) pvParameters;
+
+ pfArray = ( float * ) pvPortMalloc( xArraySize * sizeof( float ) );
+
+ /* Keep filling an array, keeping a running total of the values placed in the
+ * array. Then run through the array adding up all the values. If the two totals
+ * do not match, stop the check variable from incrementing. */
+ for( ; ; )
+ {
+ fTotal1 = 0.0F;
+ fTotal2 = 0.0F;
+ fPosition = 0.0F;
+
+ for( xPosition = 0; xPosition < xArraySize; xPosition++ )
+ {
+ pfArray[ xPosition ] = fPosition + 5.5F;
+ fTotal1 += fPosition + 5.5F;
+ }
+
+ #if configUSE_PREEMPTION == 0
+ taskYIELD();
+ #endif
+
+ for( xPosition = 0; xPosition < xArraySize; xPosition++ )
+ {
+ fTotal2 += pfArray[ xPosition ];
+ }
+
+ fDifference = fTotal1 - fTotal2;
+
+ if( fabs( fDifference ) > 0.001F )
+ {
+ sError = pdTRUE;
+ }
+
+ #if configUSE_PREEMPTION == 0
+ taskYIELD();
+ #endif
+
+ if( sError == pdFALSE )
+ {
+ /* If the calculation has always been correct, increment the check
+ * variable so we know this task is still running okay. */
+ ( *pusTaskCheckVariable )++;
+ }
+ }
}
/*-----------------------------------------------------------*/
static portTASK_FUNCTION( vCompetingMathTask4, pvParameters )
{
-volatile float *pfArray, fTotal1, fTotal2, fDifference, fPosition;
-volatile uint16_t *pusTaskCheckVariable;
-const size_t xArraySize = 10;
-size_t xPosition;
-short sError = pdFALSE;
-
- /* The variable this task increments to show it is still running is passed in
- as the parameter. */
- pusTaskCheckVariable = ( uint16_t * ) pvParameters;
-
- pfArray = ( float * ) pvPortMalloc( xArraySize * sizeof( float ) );
-
- /* Keep filling an array, keeping a running total of the values placed in the
- array. Then run through the array adding up all the values. If the two totals
- do not match, stop the check variable from incrementing. */
- for( ;; )
- {
- fTotal1 = 0.0F;
- fTotal2 = 0.0F;
- fPosition = 0.0F;
-
- for( xPosition = 0; xPosition < xArraySize; xPosition++ )
- {
- pfArray[ xPosition ] = fPosition * 12.123F;
- fTotal1 += fPosition * 12.123F;
- }
-
- #if configUSE_PREEMPTION == 0
- taskYIELD();
- #endif
-
- for( xPosition = 0; xPosition < xArraySize; xPosition++ )
- {
- fTotal2 += pfArray[ xPosition ];
- }
-
- fDifference = fTotal1 - fTotal2;
- if( fabs( fDifference ) > 0.001F )
- {
- sError = pdTRUE;
- }
-
- #if configUSE_PREEMPTION == 0
- taskYIELD();
- #endif
-
- if( sError == pdFALSE )
- {
- /* If the calculation has always been correct, increment the check
- variable so we know this task is still running okay. */
- ( *pusTaskCheckVariable )++;
- }
- }
+ volatile float * pfArray, fTotal1, fTotal2, fDifference, fPosition;
+ volatile uint16_t * pusTaskCheckVariable;
+ const size_t xArraySize = 10;
+ size_t xPosition;
+ short sError = pdFALSE;
+
+ /* The variable this task increments to show it is still running is passed in
+ * as the parameter. */
+ pusTaskCheckVariable = ( uint16_t * ) pvParameters;
+
+ pfArray = ( float * ) pvPortMalloc( xArraySize * sizeof( float ) );
+
+ /* Keep filling an array, keeping a running total of the values placed in the
+ * array. Then run through the array adding up all the values. If the two totals
+ * do not match, stop the check variable from incrementing. */
+ for( ; ; )
+ {
+ fTotal1 = 0.0F;
+ fTotal2 = 0.0F;
+ fPosition = 0.0F;
+
+ for( xPosition = 0; xPosition < xArraySize; xPosition++ )
+ {
+ pfArray[ xPosition ] = fPosition * 12.123F;
+ fTotal1 += fPosition * 12.123F;
+ }
+
+ #if configUSE_PREEMPTION == 0
+ taskYIELD();
+ #endif
+
+ for( xPosition = 0; xPosition < xArraySize; xPosition++ )
+ {
+ fTotal2 += pfArray[ xPosition ];
+ }
+
+ fDifference = fTotal1 - fTotal2;
+
+ if( fabs( fDifference ) > 0.001F )
+ {
+ sError = pdTRUE;
+ }
+
+ #if configUSE_PREEMPTION == 0
+ taskYIELD();
+ #endif
+
+ if( sError == pdFALSE )
+ {
+ /* If the calculation has always been correct, increment the check
+ * variable so we know this task is still running okay. */
+ ( *pusTaskCheckVariable )++;
+ }
+ }
}
/*-----------------------------------------------------------*/
@@ -303,25 +304,22 @@ short sError = pdFALSE; BaseType_t xAreMathsTaskStillRunning( void )
{
/* Keep a history of the check variables so we know if they have been incremented
-since the last call. */
-static uint16_t usLastTaskCheck[ mathNUMBER_OF_TASKS ] = { ( uint16_t ) 0 };
-BaseType_t xReturn = pdTRUE, xTask;
-
- /* Check the maths tasks are still running by ensuring their check variables
- are still incrementing. */
- for( xTask = 0; xTask < mathNUMBER_OF_TASKS; xTask++ )
- {
- if( usTaskCheck[ xTask ] == usLastTaskCheck[ xTask ] )
- {
- /* The check has not incremented so an error exists. */
- xReturn = pdFALSE;
- }
-
- usLastTaskCheck[ xTask ] = usTaskCheck[ xTask ];
- }
-
- return xReturn;
+ * since the last call. */
+ static uint16_t usLastTaskCheck[ mathNUMBER_OF_TASKS ] = { ( uint16_t ) 0 };
+ BaseType_t xReturn = pdTRUE, xTask;
+
+ /* Check the maths tasks are still running by ensuring their check variables
+ * are still incrementing. */
+ for( xTask = 0; xTask < mathNUMBER_OF_TASKS; xTask++ )
+ {
+ if( usTaskCheck[ xTask ] == usLastTaskCheck[ xTask ] )
+ {
+ /* The check has not incremented so an error exists. */
+ xReturn = pdFALSE;
+ }
+
+ usLastTaskCheck[ xTask ] = usTaskCheck[ xTask ];
+ }
+
+ return xReturn;
}
-
-
-
|