embassy/examples/stm32f0/src/bin/button_exti.rs
2024-01-22 21:31:06 +01:00

26 lines
744 B
Rust

#![no_std]
#![no_main]
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::exti::ExtiInput;
use embassy_stm32::gpio::Pull;
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
// Initialize and create handle for devicer peripherals
let p = embassy_stm32::init(Default::default());
// Configure the button pin and obtain handler.
// On the Nucleo F091RC there is a button connected to pin PC13.
let mut button = ExtiInput::new(p.PC13, p.EXTI13, Pull::Down);
info!("Press the USER button...");
loop {
button.wait_for_falling_edge().await;
info!("Pressed!");
button.wait_for_rising_edge().await;
info!("Released!");
}
}