Struct stm32f4xx_hal::dwt::StopWatch

pub struct StopWatch<'l> { /* private fields */ }

Very simple stopwatch which reads from DWT Cycle Counter to record timing.

Since DWT Cycle Counter is a 32-bit counter that wraps around to 0 on overflow, users should be aware that StopWatch cannot correctly measure laps which take longer than u32::MAX cycles

Implementations

impl<'l> StopWatch<'l>

pub fn lap_count(&self) -> usize

Returns the numbers of laps recorded

pub fn reset(&mut self)

Resets recorded laps to 0 and sets 0 offset

pub fn lap(&mut self) -> &mut Self

Record a new lap.

If lap count exceeds maximum, the last lap is updated

pub fn lap_time(&self, n: usize) -> Option<ClockDuration>

Calculate the time of lap n (n starting with 1).

Returns None if n is out of range