Struct embassy_rp::pio::StateMachine

pub struct StateMachine<'d, PIO: Instance, const SM: usize> { /* private fields */ }

A type representing a single PIO state machine.

Implementations

impl<'d, PIO: Instance + 'd, const SM: usize> StateMachine<'d, PIO, SM>

pub fn set_config(&mut self, config: &Config<'d, PIO>)

Set the config for a given PIO state machine.

pub fn set_clock_divider(&mut self, clock_divider: FixedU32<U8>)

Set the clock divider for this state machine.

pub fn restart(&mut self)

Restart this state machine.

pub fn set_enable(&mut self, enable: bool)

Enable state machine.

pub fn is_enabled(&self) -> bool

Check if state machine is enabled.

pub fn clkdiv_restart(&mut self)

Restart a state machine’s clock divider from an initial phase of 0.

pub fn set_pin_dirs(&mut self, dir: Direction, pins: &[&Pin<'d, PIO>])

Sets pin directions. This pauses the current state machine to run SET commands and temporarily unsets the OUT_STICKY bit.

pub fn set_pins(&mut self, level: Level, pins: &[&Pin<'d, PIO>])

Sets pin output values. This pauses the current state machine to run SET commands and temporarily unsets the OUT_STICKY bit.

pub fn clear_fifos(&mut self)

Flush FIFOs for state machine.

pub unsafe fn exec_instr(&mut self, instr: u16)

Instruct state machine to execute a given instructions

SAFETY: The state machine must be in a state where executing an arbitrary instruction does not crash it.

pub fn rx(&mut self) -> &mut StateMachineRx<'d, PIO, SM>

Return a read handle for reading state machine outputs.

pub fn tx(&mut self) -> &mut StateMachineTx<'d, PIO, SM>

Return a handle for writing to inputs.

pub fn rx_tx( &mut self ) -> (&mut StateMachineRx<'d, PIO, SM>, &mut StateMachineTx<'d, PIO, SM>)

Return both read and write handles for the state machine.

Trait Implementations

impl<'d, PIO: Instance, const SM: usize> Drop for StateMachine<'d, PIO, SM>

fn drop(&mut self)

Executes the destructor for this type.