Replace the read back of the software interrupt register with barrier instructions (CCS/RM48/TMS570).

12 years ago · d135e45676
parent 0527099b51
commit d135e45676
1 changed files with 8 additions and 8 deletions
--- a/FreeRTOS/Source/portable/CCS/ARM_Cortex-R4/portmacro.h
+++ b/FreeRTOS/Source/portable/CCS/ARM_Cortex-R4/portmacro.h
@ -122,7 +122,7 @@ extern void vPortYield( void );
 #define portYIELD()             	vPortYield()
 #define portSYS_SSIR1_REG			( * ( ( volatile unsigned long * ) 0xFFFFFFB0 ) )
 #define portSYS_SSIR1_SSKEY			( 0x7500UL )
-#define portYIELD_WITHIN_API()		{ portSYS_SSIR1_REG = portSYS_SSIR1_SSKEY;  ( void ) portSYS_SSIR1_REG; }
+#define portYIELD_WITHIN_API()		{ portSYS_SSIR1_REG = portSYS_SSIR1_SSKEY;  asm( " DSB " ); asm( " ISB " ); }
 #define portYIELD_FROM_ISR( x )		if( x != pdFALSE ){ portSYS_SSIR1_REG = portSYS_SSIR1_SSKEY;  ( void ) portSYS_SSIR1_REG; }

 /* Architecture specific optimisations. */