embassy/embassy-nrf-examples/src/bin/gpiote_port.rs

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#![no_std]
#![no_main]
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#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
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#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::*;
use core::pin::Pin;
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use cortex_m_rt::entry;
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use defmt::panic;
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use embassy::executor::{task, Executor};
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use embassy::traits::gpio::{WaitForHigh, WaitForLow};
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use embassy::util::Forever;
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use embassy_nrf::gpio::{AnyPin, Input, Pin as _, Pull};
use embassy_nrf::gpiote::{self, PortInput};
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use embassy_nrf::interrupt;
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async fn button(n: usize, mut pin: PortInput<AnyPin>) {
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loop {
Pin::new(&mut pin).wait_for_low().await;
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info!("Button {:?} pressed!", n);
Pin::new(&mut pin).wait_for_high().await;
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info!("Button {:?} released!", n);
}
}
#[task]
async fn run() {
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let p = unsafe { embassy_nrf::peripherals::Peripherals::steal() };
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let g = gpiote::initialize(p.gpiote, interrupt::take!(GPIOTE));
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let button1 = button(
1,
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PortInput::new(g, Input::new(p.p0_11.degrade(), Pull::Up)),
);
let button2 = button(
2,
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PortInput::new(g, Input::new(p.p0_12.degrade(), Pull::Up)),
);
let button3 = button(
3,
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PortInput::new(g, Input::new(p.p0_24.degrade(), Pull::Up)),
);
let button4 = button(
4,
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PortInput::new(g, Input::new(p.p0_25.degrade(), Pull::Up)),
);
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futures::join!(button1, button2, button3, button4);
}
static EXECUTOR: Forever<Executor> = Forever::new();
#[entry]
fn main() -> ! {
info!("Hello World!");
let executor = EXECUTOR.put(Executor::new());
executor.run(|spawner| {
unwrap!(spawner.spawn(run()));
});
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}