Struct msp432p401r::NVIC
source · [−]pub struct NVIC { /* private fields */ }
Expand description
Nested Vector Interrupt Controller
Implementations
sourceimpl NVIC
impl NVIC
sourcepub fn request<I>(&mut self, interrupt: I) where
I: InterruptNumber,
pub fn request<I>(&mut self, interrupt: I) where
I: InterruptNumber,
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.
sourcepub fn mask<I>(interrupt: I) where
I: InterruptNumber,
pub fn mask<I>(interrupt: I) where
I: InterruptNumber,
Disables interrupt
sourcepub unsafe fn unmask<I>(interrupt: I) where
I: InterruptNumber,
pub unsafe fn unmask<I>(interrupt: I) where
I: InterruptNumber,
Enables interrupt
This function is unsafe
because it can break mask-based critical sections
sourcepub fn get_priority<I>(interrupt: I) -> u8 where
I: InterruptNumber,
pub fn get_priority<I>(interrupt: I) -> u8 where
I: InterruptNumber,
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
).
sourcepub fn is_active<I>(interrupt: I) -> bool where
I: InterruptNumber,
pub fn is_active<I>(interrupt: I) -> bool where
I: InterruptNumber,
Is interrupt
active or pre-empted and stacked
sourcepub fn is_enabled<I>(interrupt: I) -> bool where
I: InterruptNumber,
pub fn is_enabled<I>(interrupt: I) -> bool where
I: InterruptNumber,
Checks if interrupt
is enabled
sourcepub fn is_pending<I>(interrupt: I) -> bool where
I: InterruptNumber,
pub fn is_pending<I>(interrupt: I) -> bool where
I: InterruptNumber,
Checks if interrupt
is pending
sourcepub fn pend<I>(interrupt: I) where
I: InterruptNumber,
pub fn pend<I>(interrupt: I) where
I: InterruptNumber,
Forces interrupt
into pending state
sourcepub unsafe fn set_priority<I>(&mut self, interrupt: I, prio: u8) where
I: InterruptNumber,
pub unsafe fn set_priority<I>(&mut self, interrupt: I, prio: u8) where
I: InterruptNumber,
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.
sourcepub fn unpend<I>(interrupt: I) where
I: InterruptNumber,
pub fn unpend<I>(interrupt: I) where
I: InterruptNumber,
Clears interrupt
’s pending state
sourceimpl NVIC
impl NVIC
sourcepub const PTR: *const RegisterBlock = {0xe000e100 as *const cortex_m::peripheral::nvic::RegisterBlock}
pub const PTR: *const RegisterBlock = {0xe000e100 as *const cortex_m::peripheral::nvic::RegisterBlock}
Pointer to the register block
sourcepub const fn ptr() -> *const RegisterBlock
👎 Deprecated since 0.7.5: Use the associated constant PTR
instead
pub const fn ptr() -> *const RegisterBlock
Use the associated constant PTR
instead
Returns a pointer to the register block
Trait Implementations
Auto Trait Implementations
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more