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Add code to the idle hook to test low power mode operation.

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This commit is contained in:
Richard Barry 2008-10-19 18:51:16 +00:00
parent 0463a4814b
commit 549dcfa148
3 changed files with 25 additions and 5 deletions
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2
Demo/msp430_GCC/FreeRTOSConfig.h
View file

@ -65,7 +65,7 @@
*----------------------------------------------------------*/
#define configUSE_PREEMPTION 1
#define configUSE_IDLE_HOOK 0
#define configUSE_IDLE_HOOK 1
#define configUSE_TICK_HOOK 0
#define configCPU_CLOCK_HZ ( ( unsigned portLONG ) 7995392 ) /* Clock setup from main.c in the demo application. */
#define configTICK_RATE_HZ ( ( portTickType ) 1000 )

20
Demo/msp430_GCC/main.c
View file

@ -132,6 +132,9 @@ static portSHORT prvCheckOtherTasksAreStillRunning( void );
*/
static void prvSetupHardware( void );
/* Used to detect the idle hook function stalling. */
static volatile unsigned portLONG ulIdleLoops = 0UL;
/*-----------------------------------------------------------*/
/*
@ -201,6 +204,7 @@ portTickType xDelayPeriod = mainNO_ERROR_CHECK_DELAY;
static portSHORT prvCheckOtherTasksAreStillRunning( void )
{
static portSHORT sNoErrorFound = pdTRUE;
static unsigned portLONG ulLastIdleLoops = 0UL;
/* The demo tasks maintain a count that increments every cycle of the task
provided that the task has never encountered an error. This function
@ -224,6 +228,13 @@ static portSHORT sNoErrorFound = pdTRUE;
sNoErrorFound = pdFALSE;
}
if( ulLastIdleLoops == ulIdleLoops )
{
sNoErrorFound = pdFALSE;
}
ulLastIdleLoops = ulIdleLoops;
return sNoErrorFound;
}
/*-----------------------------------------------------------*/
@ -251,6 +262,15 @@ static void prvSetupHardware( void )
}
/*-----------------------------------------------------------*/
void vApplicationIdleHook( void );
void vApplicationIdleHook( void )
{
/* Simple put the CPU into lowpower mode. */
_BIS_SR( LPM3_bits );
ulIdleLoops++;
}
/*-----------------------------------------------------------*/

8
Demo/msp430_GCC/serial/serial.c
View file

@ -83,8 +83,8 @@ static xQueueHandle xCharsForTx;
static volatile portSHORT sTHREEmpty;
/* Interrupt service routines. */
interrupt (UART1RX_VECTOR) vRxISR( void );
interrupt (UART1TX_VECTOR) vTxISR( void );
interrupt (UART1RX_VECTOR) wakeup vRxISR( void );
interrupt (UART1TX_VECTOR) wakeup vTxISR( void );
/*-----------------------------------------------------------*/
@ -208,7 +208,7 @@ signed portBASE_TYPE xReturn;
/*
* UART RX interrupt service routine.
*/
interrupt (UART1RX_VECTOR) vRxISR( void )
interrupt (UART1RX_VECTOR) wakeup vRxISR( void )
{
signed portCHAR cChar;
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
@ -232,7 +232,7 @@ portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
/*
* UART Tx interrupt service routine.
*/
interrupt (UART1TX_VECTOR) vTxISR( void )
interrupt (UART1TX_VECTOR) wakeup vTxISR( void )
{
signed portCHAR cChar;
portBASE_TYPE xTaskWoken = pdFALSE;