Make Cortex-M0 set/clear interrupt flag from ISR functions nestable.

Don't reset the stack location when starting the scheduler in Cortex-M0 ports as the vector offset register is not implemented and XMC1000 devices have their application vector address somewhere other than 0x00.
This commit is contained in:
Richard Barry 2013-09-01 19:53:24 +00:00
parent ed399e801e
commit 73606369c4
9 changed files with 146 additions and 102 deletions

View file

@ -118,12 +118,13 @@ extern void vPortYield( void );
/* Critical section management. */
extern void vPortEnterCritical( void );
extern void vPortExitCritical( void );
#define portSET_INTERRUPT_MASK() __asm volatile ( " cpsid i " )
#define portCLEAR_INTERRUPT_MASK() __asm volatile ( " cpsie i " )
#define portSET_INTERRUPT_MASK_FROM_ISR() 0;portSET_INTERRUPT_MASK()
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) portCLEAR_INTERRUPT_MASK();(void)x
#define portDISABLE_INTERRUPTS() portSET_INTERRUPT_MASK()
#define portENABLE_INTERRUPTS() portCLEAR_INTERRUPT_MASK()
extern unsigned long ulSetInterruptMaskFromISR( void ) __attribute__((naked));
extern void vClearInterruptMaskFromISR( unsigned long ulMask ) __attribute__((naked));
#define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMaskFromISR()
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vClearInterruptMaskFromISR( x )
#define portDISABLE_INTERRUPTS() __asm volatile ( " cpsid i " )
#define portENABLE_INTERRUPTS() __asm volatile ( " cpsie i " )
#define portENTER_CRITICAL() vPortEnterCritical()
#define portEXIT_CRITICAL() vPortExitCritical()