| #![no_std] |
| |
| use futures::future; |
| use libtock::leds::Led; |
| use libtock::result::TockResult; |
| use libtock::timer::Duration; |
| use libtock::timer::ParallelSleepDriver; |
| |
| async fn blink( |
| timer_driver: &ParallelSleepDriver<'_>, |
| duration: Duration<usize>, |
| led: Led<'_>, |
| ) -> TockResult<()> { |
| loop { |
| led.toggle()?; |
| |
| timer_driver.sleep(duration).await?; |
| } |
| } |
| |
| #[libtock::main] |
| async fn main() -> TockResult<()> { |
| let mut drivers = libtock::retrieve_drivers()?; |
| |
| let leds_driver = drivers.leds.init_driver()?; |
| let mut timer_driver = drivers.timer.create_timer_driver(); |
| let timer_driver = timer_driver.activate()?; |
| |
| let mut leds = leds_driver.leds(); |
| |
| let fut_1 = blink(&timer_driver, Duration::from_ms(500), leds.next().unwrap()); |
| let fut_2 = blink(&timer_driver, Duration::from_ms(333), leds.next().unwrap()); |
| let fut_3 = blink(&timer_driver, Duration::from_ms(250), leds.next().unwrap()); |
| |
| future::try_join3(fut_1, fut_2, fut_3).await?; |
| Ok(()) |
| } |