embassy/examples/nrf52840/src/bin/manually_create_executor.rs
2023-01-09 22:30:02 +01:00

50 lines
1.3 KiB
Rust

// This example showcases how to manually create an executor.
// This is what the #[embassy::main] macro does behind the scenes.
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use cortex_m_rt::entry;
use defmt::{info, unwrap};
use embassy_executor::Executor;
use embassy_time::{Duration, Timer};
use static_cell::StaticCell;
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::task]
async fn run1() {
loop {
info!("BIG INFREQUENT TICK");
Timer::after(Duration::from_ticks(64000)).await;
}
}
#[embassy_executor::task]
async fn run2() {
loop {
info!("tick");
Timer::after(Duration::from_ticks(13000)).await;
}
}
static EXECUTOR: StaticCell<Executor> = StaticCell::new();
#[entry]
fn main() -> ! {
info!("Hello World!");
let _p = embassy_nrf::init(Default::default());
// Create the executor and put it in a StaticCell, because `run` needs `&'static mut Executor`.
let executor = EXECUTOR.init(Executor::new());
// Run it.
// `run` calls the closure then runs the executor forever. It never returns.
executor.run(|spawner| {
// Here we get access to a spawner to spawn the initial tasks.
unwrap!(spawner.spawn(run1()));
unwrap!(spawner.spawn(run2()));
});
}