Struct nrf52::NVIC
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pub struct NVIC { /* fields omitted */ }
Nested Vector Interrupt Controller
Methods
impl NVIC
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fn clear_pending<I>(&mut self, interrupt: I) where
I: Nr,
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I: Nr,
Clears interrupt
's pending state
fn disable<I>(&mut self, interrupt: I) where
I: Nr,
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I: Nr,
Disables interrupt
fn enable<I>(&mut self, interrupt: I) where
I: Nr,
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I: Nr,
Enables interrupt
fn get_priority<I>(interrupt: I) -> u8 where
I: Nr,
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I: Nr,
Returns the NVIC priority of interrupt
NOTE NVIC encodes priority in the highest bits of a byte so values like 1
and 2
map
to the same priority. Also for NVIC priorities, a lower value (e.g. 16
) has higher
priority (urgency) than a larger value (e.g. 32
).
fn is_active<I>(interrupt: I) -> bool where
I: Nr,
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I: Nr,
Is interrupt
active or pre-empted and stacked
fn is_enabled<I>(interrupt: I) -> bool where
I: Nr,
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I: Nr,
Checks if interrupt
is enabled
fn is_pending<I>(interrupt: I) -> bool where
I: Nr,
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I: Nr,
Checks if interrupt
is pending
fn set_pending<I>(&mut self, interrupt: I) where
I: Nr,
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I: Nr,
Forces interrupt
into pending state
unsafe fn set_priority<I>(&mut self, interrupt: I, prio: u8) where
I: Nr,
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I: Nr,
Sets the "priority" of interrupt
to prio
NOTE See get_priority
method for an explanation
of how NVIC priorities work.
On ARMv6-M, updating an interrupt priority requires a read-modify-write operation. On ARMv7-M, the operation is performed in a single atomic write operation.
impl NVIC
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fn ptr() -> *const RegisterBlock
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Returns a pointer to the register block