Also add a comment explaining why we use that value.
---
cpukit/score/cpu/arm/rtems/score/armv7m.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/cpukit/score/cpu/arm/rtems/score/armv7m.h
b/cpukit/score/cpu/arm/rtems/score/armv7m.h
index 251ecdc..0a69363 100644
--- a/cpukit/score/cpu/arm/rtems/score/armv7m.h
+++ b/cpukit/score/cpu/arm/rtems/score/armv7m.h
@@ -386,7 +386,8 @@ typedef struct {
static inline bool _ARMV7M_Is_vector_an_irq( int vector )
{
- return vector >= 16;
+ /* External (i.e. non-system) IRQs start after the SysTick vector. */
+ return vector > ARMV7M_VECTOR_SYSTICK;
}
static inline uint32_t _ARMV7M_Get_basepri(void)
--
2.7.1
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