Struct Unit

#[non_exhaustive]
pub struct Unit<'d, const NUM: usize> {
    pub counter: Counter<'d, NUM>,
    pub channel0: Channel<'d, NUM, 0>,
    pub channel1: Channel<'d, NUM, 1>,
    /* private fields */
}

Available on crate feature unstable only.

Represents a pulse counter unit.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

counter: Counter<'d, NUM>

The counter for PCNT unit.

channel0: Channel<'d, NUM, 0>

The first channel in PCNT unit.

channel1: Channel<'d, NUM, 1>

The second channel in PCNT unit.

Implementations

impl<const NUM: usize> Unit<'_, NUM>

pub fn set_low_limit(&self, value: Option<i16>) -> Result<(), InvalidLowLimit>

Configures a lower limit to the count value.

When the count drops to this value:

• A low limit interrupt is triggered.
• The count is reset to 0.

If None is specified, then no interrupt is triggered and the count wraps around after [i16::MIN].

Note: The specified value must be negative.

pub fn set_high_limit(&self, value: Option<i16>) -> Result<(), InvalidHighLimit>

Configures a high limit to the count value.

When the count rises to this value:

• A high limit interrupt is triggered.
• The count is reset to 0.

If None is specified, then no interrupt is triggered and the count wraps around after [i16::MAX].

Note: The specified value must be positive.

pub fn set_threshold0(&self, value: Option<i16>)

Configures a threshold value to trigger an interrupt.

When the count equals this value a threshold0 interrupt is triggered. If None is specified, then no interrupt is triggered.

pub fn set_threshold1(&self, value: Option<i16>)

Configures a threshold value to trigger an interrupt.

When the count equals this value a threshold1 interrupt is triggered. If None is specified, then no interrupt is triggered.

pub fn set_filter( &self, threshold: Option<u16>, ) -> Result<(), InvalidFilterThreshold>

Configures the glitch filter hardware of the unit.

threshold is the minimum number of APB_CLK cycles for a pulse to be considered valid. If it is None, the filter is disabled.

Note: This maximum possible threshold is 1023.

pub fn clear(&self)

Resets the counter value to zero.

pub fn pause(&self)

Pause the counter

pub fn resume(&self)

Resume the counter

pub fn events(&self) -> Events

Get the latest events for this unit.

pub fn zero_mode(&self) -> ZeroMode

Get the mode of the last zero crossing

pub fn listen(&self)

Enable interrupts for this unit.

pub fn unlisten(&self, _cs: CriticalSection<'_>)

Disable interrupts for this unit.

pub fn interrupt_is_set(&self) -> bool

Returns true if an interrupt is active for this unit.

pub fn reset_interrupt(&self)

Clear the interrupt bit for this unit.

pub fn value(&self) -> i16

Get the current counter value.

Trait Implementations

impl<const NUM: usize> Drop for Unit<'_, NUM>

fn drop(&mut self)

Executes the destructor for this type.

impl<const NUM: usize> Send for Unit<'_, NUM>