Struct cortex_m::peripheral::NVIC[][src]

pub struct NVIC { /* fields omitted */ }

Nested Vector Interrupt Controller

Implementations

impl NVIC[src]

pub fn request<I>(&mut self, interrupt: I) where
    I: InterruptNumber
[src]

Request an IRQ in software

Writing a value to the INTID field is the same as manually pending an interrupt by setting the corresponding interrupt bit in an Interrupt Set Pending Register. This is similar to NVIC::pend.

This method is not available on ARMv6-M chips.

pub fn mask<I>(interrupt: I) where
    I: InterruptNumber
[src]

Disables interrupt

pub unsafe fn unmask<I>(interrupt: I) where
    I: InterruptNumber
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Enables interrupt

This function is unsafe because it can break mask-based critical sections

pub fn get_priority<I>(interrupt: I) -> u8 where
    I: InterruptNumber
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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).

pub fn is_active<I>(interrupt: I) -> bool where
    I: InterruptNumber
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Is interrupt active or pre-empted and stacked

pub fn is_enabled<I>(interrupt: I) -> bool where
    I: InterruptNumber
[src]

Checks if interrupt is enabled

pub fn is_pending<I>(interrupt: I) -> bool where
    I: InterruptNumber
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Checks if interrupt is pending

pub fn pend<I>(interrupt: I) where
    I: InterruptNumber
[src]

Forces interrupt into pending state

pub unsafe fn set_priority<I>(&mut self, interrupt: I, prio: u8) where
    I: InterruptNumber
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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.

Unsafety

Changing priority levels can break priority-based critical sections (see register::basepri) and compromise memory safety.

pub fn unpend<I>(interrupt: I) where
    I: InterruptNumber
[src]

Clears interrupt’s pending state

impl NVIC[src]

pub const PTR: *const RegisterBlock[src]

Pointer to the register block

pub const fn ptr() -> *const RegisterBlock[src]

Returns a pointer to the register block (to be deprecated in 0.7)

Trait Implementations

impl Deref for NVIC[src]

type Target = RegisterBlock

The resulting type after dereferencing.

impl Send for NVIC[src]

Auto Trait Implementations

impl !Sync for NVIC

impl Unpin for NVIC

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.