Struct Flex

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

GPIO flexible pin.

This pin can either be a disconnected, input, or output pin, or both. The level register bit will remain set while not in output mode, so the pin’s level will be ‘remembered’ when it is not in output mode.

Implementations

impl<'d> Flex<'d>

pub fn new(pin: impl Peripheral<P = impl Pin> + 'd) -> Self

Wrap the pin in a Flex.

The pin remains disconnected. The initial output level is unspecified, but can be changed before the pin is put into output mode.

pub fn set_as_input(&mut self, pull: Pull)

Put the pin into input mode.

The internal weak pull-up and pull-down resistors will be enabled according to pull.

pub fn set_as_output(&mut self, speed: Speed)

Put the pin into push-pull output mode.

The pin level will be whatever was set before (or low by default). If you want it to begin at a specific level, call set_high/set_low on the pin first.

The internal weak pull-up and pull-down resistors will be disabled.

pub fn set_as_input_output(&mut self, speed: Speed)

Put the pin into input + open-drain output mode.

The hardware will drive the line low if you set it to low, and will leave it floating if you set it to high, in which case you can read the input to figure out whether another device is driving the line low.

The pin level will be whatever was set before (or low by default). If you want it to begin at a specific level, call set_high/set_low on the pin first.

The internal weak pull-up and pull-down resistors will be disabled.

pub fn set_as_input_output_pull(&mut self, speed: Speed, pull: Pull)

Put the pin into input + open-drain output mode with internal pullup or pulldown.

This works like Self::set_as_input_output(), but it also allows to enable the internal weak pull-up or pull-down resistors.

pub fn set_as_analog(&mut self)

Put the pin into analog mode

This mode is used by ADC and COMP but usually there is no need to set this manually as the mode change is handled by the driver.

pub fn set_as_af_unchecked(&mut self, af_num: u8, af_type: AfType)

Put the pin into AF mode, unchecked.

This puts the pin into the AF mode, with the requested number and AF type. This is completely unchecked, it can attach the pin to literally any peripheral, so use with care.

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 get_level(&self) -> Level

Get the current pin input 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 get_output_level(&self) -> Level

Get the current output level.

pub fn set_high(&mut self)

Set the output as high.

pub fn set_low(&mut self)

Set the output as low.

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

Set the output level.

pub fn toggle(&mut self)

Toggle the output level.

Trait Implementations

impl<'d> Drop for Flex<'d>

fn drop(&mut self)

Executes the destructor for this type.

impl<'d> ErrorType for Flex<'d>

type Error = Infallible

Error type

impl<'d> InputPin for Flex<'d>

type Error = Infallible

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 Flex<'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 Flex<'d>

type Error = Infallible

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 Flex<'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 Flex<'d>

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

Is the output pin set as low?

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

Is the pin in drive high mode?

impl<'d> StatefulOutputPin for Flex<'d>

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

Is the output pin set as low?

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

Is the pin in drive high mode?

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

Toggle pin output.

impl<'d> ToggleableOutputPin for Flex<'d>

type Error = Infallible

Error type

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

Toggle pin output.