Struct OutputOpenDrain 

pub struct OutputOpenDrain<'d> { /* private fields */ }

GPIO output open-drain driver.

The pin drives the line low when set low and leaves it floating (disconnected) when set high, so the line can be shared with other open-drain devices (wired-and). The input buffer stays connected, so the actual line level can be read back with is_high and friends.

Implementations

impl<'d> OutputOpenDrain<'d>

pub fn new( pin: Peri<'d, impl Pin>, initial_output: Level, drive: OutputDrive, pull: Pull, ) -> Self

Create GPIO output open-drain driver for a Pin with the provided Level, OutputDrive and Pull configuration.

drive selects the drive strength used when driving the line low. It should be one of the *Disconnect1 variants (typically OutputDrive::Standard0Disconnect1), otherwise the pin will actively drive the line high as well.

pub fn set_high(&mut self)

Set the output as high.

pub fn set_low(&mut self)

Set the output as low.

pub fn toggle(&mut self)

Toggle the output level.

pub fn set_level(&mut self, level: Level)

Set the output level.

pub fn is_set_high(&self) -> bool

Get whether the output level is set to high.

pub fn is_set_low(&self) -> bool

Get whether the output level is set to low.

pub fn output_level(&self) -> Level

Get the current output level.

pub fn is_high(&self) -> bool

Get whether the pin input level is high.

pub fn is_low(&self) -> bool

Get whether the pin input level is low.

pub fn level(&self) -> Level

Get the pin input level.

impl OutputOpenDrain<'static>

pub fn persist(self)

Persist the pin’s configuration for the rest of the program’s lifetime. This method should be preferred over core::mem::forget() because the 'static bound prevents accidental reuse of the underlying peripheral.

impl<'d> OutputOpenDrain<'d>

pub async fn wait_for_high(&mut self)

Wait until the pin is high. If it is already high, return immediately.

pub async fn wait_for_low(&mut self)

Wait until the pin is low. If it is already low, return immediately.

pub async fn wait_for_rising_edge(&mut self)

Wait for the pin to undergo a transition from low to high.

pub async fn wait_for_falling_edge(&mut self)

Wait for the pin to undergo a transition from high to low.

pub async fn wait_for_any_edge(&mut self)

Wait for the pin to undergo any transition, i.e low to high OR high to low.

Trait Implementations

impl<'d> ErrorType for OutputOpenDrain<'d>

type Error = !

Error type

impl<'d> InputPin for OutputOpenDrain<'d>

type Error = !

Error type

fn is_high(&self) -> Result<bool, Self::Error>

Is the input pin high?

fn is_low(&self) -> Result<bool, Self::Error>

Is the input pin low?

impl<'d> InputPin for OutputOpenDrain<'d>

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

Is the input pin high?

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

Is the input pin low?

impl<'d> OutputPin for OutputOpenDrain<'d>

type Error = !

Error type

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

Drives the pin high

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

Drives the pin low

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

Drives the pin high or low depending on the provided value

impl<'d> OutputPin for OutputOpenDrain<'d>

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

Drives the pin high.

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

Drives the pin low.

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

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

impl<'d> StatefulOutputPin for OutputOpenDrain<'d>

fn is_set_high(&self) -> Result<bool, Self::Error>

Is the pin in drive high mode?

fn is_set_low(&self) -> Result<bool, Self::Error>

Is the pin in drive low mode?

impl<'d> StatefulOutputPin for OutputOpenDrain<'d>

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

Is the pin in drive high mode?

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

Is the pin in drive low mode?

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

Toggle pin output.

impl<'d> ToggleableOutputPin for OutputOpenDrain<'d>

type Error = !

Error type

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

Toggle pin output.

impl<'d> Wait for OutputOpenDrain<'d>

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

Wait until the pin is high. If it is already high, return immediately.

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

Wait until the pin is low. If it is already low, return immediately.

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

Wait for the pin to undergo a transition from low to high.

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

Wait for the pin to undergo a transition from high to low.

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

Wait for the pin to undergo any transition, i.e low to high OR high to low.