Skip to main content

PresenceCs

m5stack_core::board::spi2

Struct PresenceCs 

Source 
pub struct PresenceCs<CS> { /* private fields */ }
Expand description

Chip-select wrapper that can freeze the card deasserted to force the absent-card path (see CardPresence::ForceAbsent).

SD chip-select is active-low, so set_low selects: when frozen it is suppressed (the card is never selected → MISO idles 0xFF → authentic init failure), while set_high (deselect) is always honoured. It is carried inside PreparedCard because the freeze only bites where the CS is first asserted — downstream in the app’s SdSpi::init() CMD0, not the CS-deasserted 74-clock pre-init. A single runtime-flag type (not a type-level marker) keeps Spi2Parts::finish_sd monomorphic across a runtime CardPresence.

Trait Implementations§

Source§

impl<CS: ErrorType> ErrorType for PresenceCs<CS>

Source§

type Error = <CS as ErrorType>::Error

Error type
Source§

impl<CS: OutputPin> OutputPin for PresenceCs<CS>

Source§

fn set_low(&mut self) -> Result<(), Self::Error>

Drives the pin low. Read more
Source§

fn set_high(&mut self) -> Result<(), Self::Error>

Drives the pin high. Read more
§

fn set_state(&mut self, state: PinState) -> Result<(), Self::Error>

Drives the pin high or low depending on the provided value. Read more

Auto Trait Implementations§

§

impl<CS> Freeze for PresenceCs<CS>
where CS: Freeze,

§

impl<CS> PsramSafe for PresenceCs<CS>
where CS: PsramSafe,

§

impl<CS> RefUnwindSafe for PresenceCs<CS>
where CS: RefUnwindSafe,

§

impl<CS> Send for PresenceCs<CS>
where CS: Send,

§

impl<CS> Sync for PresenceCs<CS>
where CS: Sync,

§

impl<CS> Unpin for PresenceCs<CS>
where CS: Unpin,

§

impl<CS> UnsafeUnpin for PresenceCs<CS>
where CS: UnsafeUnpin,

§

impl<CS> UnwindSafe for PresenceCs<CS>
where CS: UnwindSafe,

Blanket Implementations§

§

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

§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Az for T

Source§

fn az<Dst>(self) -> Dst
where T: Cast<Dst>,

Casts the value.
§

impl<T> Borrow<T> for T
where T: ?Sized,

§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
§

impl<T> BorrowMut<T> for T
where T: ?Sized,

§

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

Mutably borrows from an owned value. Read more
Source§

impl<Src, Dst> CastFrom<Src> for Dst
where Src: Cast<Dst>,

Source§

fn cast_from(src: Src) -> Dst

Casts the value.
Source§

impl<T> CheckedAs for T

Source§

fn checked_as<Dst>(self) -> Option<Dst>
where T: CheckedCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> CheckedCastFrom<Src> for Dst
where Src: CheckedCast<Dst>,

Source§

fn checked_cast_from(src: Src) -> Option<Dst>

Casts the value.
§

impl<T> From<T> for T

§

fn from(t: T) -> T

Returns the argument unchanged.

§

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

§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<Src, Dst> LosslessTryInto<Dst> for Src
where Dst: LosslessTryFrom<Src>,

Source§

fn lossless_try_into(self) -> Option<Dst>

Performs the conversion.
Source§

impl<Src, Dst> LossyInto<Dst> for Src
where Dst: LossyFrom<Src>,

Source§

fn lossy_into(self) -> Dst

Performs the conversion.
Source§

impl<T> OverflowingAs for T

Source§

fn overflowing_as<Dst>(self) -> (Dst, bool)
where T: OverflowingCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> OverflowingCastFrom<Src> for Dst
where Src: OverflowingCast<Dst>,

Source§

fn overflowing_cast_from(src: Src) -> (Dst, bool)

Casts the value.
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T> SaturatingAs for T

Source§

fn saturating_as<Dst>(self) -> Dst
where T: SaturatingCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> SaturatingCastFrom<Src> for Dst
where Src: SaturatingCast<Dst>,

Source§

fn saturating_cast_from(src: Src) -> Dst

Casts the value.
§

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

§

type Error = Infallible

The type returned in the event of a conversion error.
§

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

Performs the conversion.
§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
§

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

Performs the conversion.
Source§

impl<T> UnwrappedAs for T

Source§

fn unwrapped_as<Dst>(self) -> Dst
where T: UnwrappedCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> UnwrappedCastFrom<Src> for Dst
where Src: UnwrappedCast<Dst>,

Source§

fn unwrapped_cast_from(src: Src) -> Dst

Casts the value.
Source§

impl<T> WrappingAs for T

Source§

fn wrapping_as<Dst>(self) -> Dst
where T: WrappingCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> WrappingCastFrom<Src> for Dst
where Src: WrappingCast<Dst>,

Source§

fn wrapping_cast_from(src: Src) -> Dst

Casts the value.
§

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

§

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

§

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,