esp-idf-hal/examples/timer_async.rs

#![allow(unexpected_cfgs)]

#[cfg(esp_idf_version_at_least_6_0_0)]
fn main() {
    panic!("Timer not yet available when building against ESP-IDF 6.0+")
}

#[cfg(not(esp_idf_version_at_least_6_0_0))]
fn main() -> Result<(), esp_idf_hal::sys::EspError> {
    use esp_idf_hal::peripherals::*;
    use esp_idf_hal::task::*;
    use esp_idf_hal::timer::*;

    // It is necessary to call this function once. Otherwise some patches to the runtime
    // implemented by esp-idf-sys might not link properly. See https://github.com/esp-rs/esp-idf-template/issues/71
    esp_idf_hal::sys::link_patches();

    let per = Peripherals::take()?;

    let mut timer = TimerDriver::new(per.timer00, &TimerConfig::new())?;

    block_on(async {
        loop {
            timer.delay(timer.tick_hz()).await?; // Every second

            println!("Tick");
        }
    })
}