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Update MPS430X ports so the sleep mode bits are cleared on exit from the tick interrupt.

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Update heap_4.c.
This commit is contained in:
Richard Barry 2012-08-11 20:57:11 +00:00
parent 59c9044de1
commit 054b018d0e
5 changed files with 29 additions and 32 deletions
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1
Source/portable/IAR/MSP430X/port.c
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@ -214,6 +214,7 @@ __interrupt __raw void vTickISREntry( void )
{
extern void vPortTickISR( void );
__bic_SR_register_on_exit( SCG1 + SCG0 + OSCOFF + CPUOFF );
vPortTickISR();
}

38
Source/portable/IAR/MSP430X/portext.s43
View file

@ -95,12 +95,6 @@ portRESTORE_CONTEXT macro
pop_x r15
mov.w r15, &usCriticalNesting
popm_x #12, r15
/* The last thing on the stack will be the status register.
Ensure the power down bits are clear ready for the next
time this power down register is popped from the stack. */
bic.w #0xf0, 0( sp )
pop.w sr
reta
endm
@ -115,23 +109,25 @@ portRESTORE_CONTEXT macro
*
* If the preemptive scheduler is in use a context switch can also occur.
*/
RSEG CODE
EVEN
vPortTickISR:
/* The sr is not saved in portSAVE_CONTEXT() because vPortYield() needs
to save it manually before it gets modified (interrupts get disabled). */
to save it manually before it gets modified (interrupts get disabled).
Entering through this interrupt means the SR is already on the stack, but
this keeps the stack frames identical. */
push.w sr
portSAVE_CONTEXT
calla #vTaskIncrementTick
#if configUSE_PREEMPTION == 1
calla #vTaskSwitchContext
#endif
portRESTORE_CONTEXT
/*-----------------------------------------------------------*/
@ -139,21 +135,21 @@ vPortTickISR:
* Manual context switch called by the portYIELD() macro.
*/
EVEN
vPortYield:
/* The sr needs saving before it is modified. */
push.w sr
/* Now the SR is stacked we can disable interrupts. */
dint
dint
nop
/* Save the context of the current task. */
portSAVE_CONTEXT
portSAVE_CONTEXT
/* Select the next task to run. */
calla #vTaskSwitchContext
calla #vTaskSwitchContext
/* Restore the context of the new task. */
portRESTORE_CONTEXT
@ -165,7 +161,7 @@ vPortYield:
* the context of the first task.
*/
EVEN
xPortStartScheduler:
/* Setup the hardware to generate the tick. Interrupts are disabled
@ -175,6 +171,6 @@ xPortStartScheduler:
/* Restore the context of the first task that is going to run. */
portRESTORE_CONTEXT
/*-----------------------------------------------------------*/
END