mirror of
https://github.com/esp-rs/esp-hal.git
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0064766ef2
* No longer publicly expose the `PeripheralClockControl` struct * Update examples as needed to get things building again * Update CHANGELOG.md * Address review feedback, fix a warning * Use a critical section for all devices other than the ESP32-C6/H2, as they modify multiple registers * Rebase and update `etm` driver to fix build errors
61 lines
1.6 KiB
Rust
61 lines
1.6 KiB
Rust
//! embassy wait
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//!
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//! This is an example of asynchronously `Wait`ing for a pin state to change.
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#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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use embassy_time::{Duration, Timer};
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use embedded_hal_async::digital::Wait;
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use esp32s2_hal::{
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clock::ClockControl,
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embassy::{self, executor::Executor},
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gpio::{Gpio0, Input, PullDown},
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peripherals::Peripherals,
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prelude::*,
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IO,
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};
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use esp_backtrace as _;
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use static_cell::make_static;
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#[embassy_executor::task]
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async fn ping(mut pin: Gpio0<Input<PullDown>>) {
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loop {
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esp_println::println!("Waiting...");
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pin.wait_for_rising_edge().await.unwrap();
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esp_println::println!("Ping!");
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Timer::after(Duration::from_millis(100)).await;
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}
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}
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#[entry]
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fn main() -> ! {
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esp_println::println!("Init!");
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let peripherals = Peripherals::take();
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let system = peripherals.SYSTEM.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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#[cfg(feature = "embassy-time-timg0")]
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{
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let timer_group0 = esp32s2_hal::timer::TimerGroup::new(peripherals.TIMG0, &clocks);
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embassy::init(&clocks, timer_group0.timer0);
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}
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let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
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// GPIO 0 as input
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let input = io.pins.gpio0.into_pull_down_input();
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// Async requires the GPIO interrupt to wake futures
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esp32s2_hal::interrupt::enable(
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esp32s2_hal::peripherals::Interrupt::GPIO,
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esp32s2_hal::interrupt::Priority::Priority1,
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)
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.unwrap();
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let executor = make_static!(Executor::new());
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executor.run(|spawner| {
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spawner.spawn(ping(input)).ok();
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});
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}
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