esp-hal-nostd.rs

esp-hal-nostd.rs

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]

use embassy_executor::Spawner;
use embassy_time::{Duration, Timer};
use embedded_hal_async::digital::Wait;
use esp_backtrace as _;
use hal::{
    clock::ClockControl,
    embassy::{self},
    gpio::*,
    peripherals::Peripherals,
    prelude::*,
    IO,
};

#[main]
async fn main(spawner: Spawner) -> ! {
    esp_println::println!("Init!");
    let peripherals = Peripherals::take();
    let system = peripherals.SYSTEM.split();
    let clocks = ClockControl::boot_defaults(system.clock_control).freeze();

    {
        let timer_group0 = hal::timer::TimerGroup::new(peripherals.TIMG0, &clocks);
        embassy::init(&clocks, timer_group0.timer0);
    }

    let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
    // GPIO 0 as input
    let mut input = io.pins.gpio0.into_pull_up_input().degrade();
    let mut output = io.pins.gpio2.into_push_pull_output().degrade();
    output.set_high().unwrap();
    // Async requires the GPIO interrupt to wake futures
    hal::interrupt::enable(
        hal::peripherals::Interrupt::GPIO,
        hal::interrupt::Priority::Priority1,
    )
    .unwrap();

    spawner.spawn(run(input)).ok();

    loop {
        esp_println::println!("nom");
        Timer::after(Duration::from_millis(1000)).await;
    }
}

#[embassy_executor::task]
async fn run(mut input: AnyPin<Input<PullUp>>) {
    //mut input: AnyPin<Input<PullDown>>) {
    if input.is_low().unwrap() {
        esp_println::println!("init low");
    } else {
        esp_println::println!("init high");
    }
    loop {
        input.wait_for_any_edge().await.unwrap();
        if input.is_high().unwrap() {
            esp_println::println!("hi hi high");
        } else if input.is_low().unwrap() {
            esp_println::println!("low low low")
        } else {
            esp_println::println!("something else")
        }
        //Timer::after(Duration::from_millis(100)).await;
    }
}