esp_hal::twai

Struct TwaiTx

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pub struct TwaiTx<'d, Dm: DriverMode> { /* private fields */ }
Available on crate feature unstable only.
Expand description

Interface to the TWAI transmitter part.

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impl TwaiTx<'_, Async>

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pub async fn transmit_async( &mut self, frame: &EspTwaiFrame, ) -> Result<(), EspTwaiError>

Transmits an EspTwaiFrame asynchronously over the TWAI bus.

The transmission is aborted if the future is dropped. The technical reference manual does not specifiy if aborting the transmission also stops it, in case it is activly transmitting. Therefor it could be the case that even though the future is dropped, the frame was sent anyways.

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impl<Dm> TwaiTx<'_, Dm>
where Dm: DriverMode,

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pub fn transmit(&mut self, frame: &EspTwaiFrame) -> Result<(), EspTwaiError>

Transmit a frame.

Because of how the TWAI registers are set up, we have to do some assembly of bytes. Note that these registers serve a filter configuration role when the device is in configuration mode so patching the svd files to improve this may be non-trivial.

ESP32C3 Reference Manual

NOTE: TODO: This may not work if using the self reception/self test functionality. See notes 1 and 2 in the “Frame Identifier” section of the reference manual.

Auto Trait Implementations§

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impl<'d, Dm> Freeze for TwaiTx<'d, Dm>

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impl<'d, Dm> RefUnwindSafe for TwaiTx<'d, Dm>
where Dm: RefUnwindSafe,

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impl<'d, Dm> Send for TwaiTx<'d, Dm>
where Dm: Send,

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impl<'d, Dm> Sync for TwaiTx<'d, Dm>
where Dm: Sync,

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impl<'d, Dm> Unpin for TwaiTx<'d, Dm>
where Dm: Unpin,

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impl<'d, Dm> !UnwindSafe for TwaiTx<'d, Dm>

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> 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.