embassy-nrf

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nrf5340-net

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embassy_nrf::rng

Struct Rng

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pub struct Rng<'d, T: Instance> { /* private fields */ }
Expand description

A wrapper around an nRF RNG peripheral.

It has a non-blocking API, and a blocking api through rand.

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impl<'d, T: Instance> Rng<'d, T>

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pub fn new( rng: impl Peripheral<P = T> + 'd, _irq: impl Binding<T::Interrupt, InterruptHandler<T>> + 'd, ) -> Self

Creates a new RNG driver from the RNG peripheral and interrupt.

SAFETY: The future returned from fill_bytes must not have its lifetime end without running its destructor, e.g. using mem::forget.

The synchronous API is safe.

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pub fn set_bias_correction(&self, enable: bool)

Enable or disable the RNG’s bias correction.

Bias correction removes any bias towards a ‘1’ or a ‘0’ in the bits generated. However, this makes the generation of numbers slower.

Defaults to disabled.

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pub async fn fill_bytes(&mut self, dest: &mut [u8])

Fill the buffer with random bytes.

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pub fn blocking_fill_bytes(&mut self, dest: &mut [u8])

Fill the buffer with random bytes, blocking version.

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impl<'d, T: Instance> Drop for Rng<'d, T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<'d, T: Instance> RngCore for Rng<'d, T>

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fn fill_bytes(&mut self, dest: &mut [u8])

Fill dest with random data. Read more
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fn next_u32(&mut self) -> u32

Return the next random u32. Read more
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fn next_u64(&mut self) -> u64

Return the next random u64. Read more
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fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>

Fill dest entirely with random data. Read more
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impl<'d, T: Instance> CryptoRng for Rng<'d, T>

Auto Trait Implementations§

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impl<'d, T> Freeze for Rng<'d, T>
where T: Freeze,

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impl<'d, T> RefUnwindSafe for Rng<'d, T>
where T: RefUnwindSafe,

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impl<'d, T> Send for Rng<'d, T>

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impl<'d, T> Sync for Rng<'d, T>
where T: Sync,

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impl<'d, T> Unpin for Rng<'d, T>
where T: Unpin,

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impl<'d, T> !UnwindSafe for Rng<'d, T>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CryptoRngCore for T
where T: CryptoRng + RngCore,

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fn as_rngcore(&mut self) -> &mut dyn RngCore

Upcast to an RngCore trait object.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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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.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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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.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.