X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=Demo%2FCORTEX_LM3Sxxxx_IAR_Keil%2Ftimertest.c;h=6e46bb4b7105ced95cce0734a503f774de86f518;hb=baa9ed196e2945d39b1487fbd47e7f089a534ee5;hp=1a88989d5cd5fa1ab6ee4045d3473a0fa79e8dbd;hpb=f6abf70e60051c8dc271e329eeef65028ba3126b;p=freertos

diff --git a/Demo/CORTEX_LM3Sxxxx_IAR_Keil/timertest.c b/Demo/CORTEX_LM3Sxxxx_IAR_Keil/timertest.c
index 1a88989d5..6e46bb4b7 100644
--- a/Demo/CORTEX_LM3Sxxxx_IAR_Keil/timertest.c
+++ b/Demo/CORTEX_LM3Sxxxx_IAR_Keil/timertest.c
@@ -68,7 +68,7 @@ zero. */
 void Timer0IntHandler( void );
 
 /* Stores the value of the maximum recorded jitter between interrupts. */
-unsigned portLONG ulMaxJitter = 0;
+volatile unsigned portLONG ulMaxJitter = 0;
 
 /*-----------------------------------------------------------*/
 
@@ -89,6 +89,9 @@ unsigned long ulFrequency;
 	/* Just used to measure time. */
     TimerLoadSet(TIMER1_BASE, TIMER_A, timerMAX_32BIT_VALUE );
 	
+	/* Ensure interrupts do not start until the scheduler is running. */
+	portDISABLE_INTERRUPTS();
+	
 	/* The rate at which the timer will interrupt. */
 	ulFrequency = configCPU_CLOCK_HZ / timerINTERRUPT_FREQUENCY;	
     TimerLoadSet( TIMER0_BASE, TIMER_A, ulFrequency );
@@ -103,7 +106,8 @@ unsigned long ulFrequency;
 
 void Timer0IntHandler( void )
 {
-unsigned portLONG ulDifference, ulCurrentCount;
+unsigned portLONG ulDifference;
+volatile unsigned portLONG ulCurrentCount;
 static portLONG ulMaxDifference = 0, ulLastCount = 0;
 
 	/* We use the timer 1 counter value to measure the clock cycles between