Struct Config

#[non_exhaustive]
pub struct Config {
    pub invert_a: bool,
    pub invert_b: bool,
    pub phase_correct: bool,
    pub enable: bool,
    pub divider: FixedU16<U4>,
    pub compare_a: u16,
    pub compare_b: u16,
    pub top: u16,
}

The configuration of a PWM slice. Note the period in clock cycles of a slice can be computed as: (top + 1) * (phase_correct ? 1 : 2) * divider

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.

invert_a: bool

Inverts the PWM output signal on channel A.

invert_b: bool

Inverts the PWM output signal on channel B.

phase_correct: bool

Enables phase-correct mode for PWM operation. In phase-correct mode, the PWM signal is generated in such a way that the pulse is always centered regardless of the duty cycle. The output frequency is halved when phase-correct mode is enabled.

enable: bool

Enables the PWM slice, allowing it to generate an output.

divider: FixedU16<U4>

A fractional clock divider, represented as a fixed-point number with 8 integer bits and 4 fractional bits. It allows precise control over the PWM output frequency by gating the PWM counter increment. A higher value will result in a slower output frequency.

compare_a: u16

The output on channel A goes high when compare_a is higher than the counter. A compare of 0 will produce an always low output, while a compare of top + 1 will produce an always high output.

compare_b: u16

The output on channel B goes high when compare_b is higher than the counter. A compare of 0 will produce an always low output, while a compare of top + 1 will produce an always high output.

top: u16

The point at which the counter wraps, representing the maximum possible period. The counter will either wrap to 0 or reverse depending on the setting of phase_correct.

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for Config

fn default() -> Self

Returns the “default value” for a type.