diff options
Diffstat (limited to 'nuttx/arch/arm/src/lm3s/lm3s_irq.c')
| -rw-r--r-- | nuttx/arch/arm/src/lm3s/lm3s_irq.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/nuttx/arch/arm/src/lm3s/lm3s_irq.c b/nuttx/arch/arm/src/lm3s/lm3s_irq.c index 4b3c404e0..80bb33503 100644 --- a/nuttx/arch/arm/src/lm3s/lm3s_irq.c +++ b/nuttx/arch/arm/src/lm3s/lm3s_irq.c @@ -40,7 +40,9 @@ #include <nuttx/config.h> #include <sys/types.h> + #include <nuttx/irq.h> +#include <nuttx/arch.h> #include "up_arch.h" #include "os_internal.h" @@ -173,13 +175,17 @@ void up_irqinitialize(void) current_regs = NULL; - /* Attach the PendSV exception handler. This is used for performing + /* Attach the PendSV exception handler and set it to the minimum + * prioirity. The PendSV exception is used for performing * context switches. */ irq_attach(LMSB_IRQ_PENDSV, lm3s_pendsv); +#ifdef CONFIG_ARCH_IRQPRIO + up_prioritize_irq(LMSB_IRQ_PENDSV, NVIC_SYSH_PRIORITY_MIN); +#endif - /* Attach all processor exceptions (except reset and sys tick) */ + /* Attach all other processor exceptions (except reset and sys tick) */ #ifdef CONFIG_DEBUG irq_attach(LMSB_IRQ_NMI, lm3s_nmi); @@ -285,7 +291,7 @@ int up_prioritize_irq(int irq, int priority) uint32 regval; int shift; - DEBUGASSERT(irq >= LMSB_IRQ_MPU && irq < NR_IRQS && (unsigned)priority <= NVIC_SYSH_PRIORITY_MAX); + DEBUGASSERT(irq >= LMSB_IRQ_MPU && irq < NR_IRQS && (unsigned)priority <= NVIC_SYSH_PRIORITY_MIN); if (irq < LM3S_IRQ_INTERRUPTS) { |