embassy/examples/stm32f4/src/bin/pwm_input.rs
2024-05-29 00:28:26 -04:00

53 lines
1.3 KiB
Rust

#![no_std]
#![no_main]
use cortex_m::asm;
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::gpio::{Level, Output, Pull, Speed};
use embassy_stm32::time::khz;
use embassy_stm32::timer::{self, pwm_input::PwmInput};
use embassy_stm32::{bind_interrupts, peripherals};
use embassy_time::Timer;
use {defmt_rtt as _, panic_probe as _};
/// Connect PB2 and PB10 with a 1k Ohm resistor
#[embassy_executor::task]
async fn blinky(led: peripherals::PB2) {
let mut led = Output::new(led, Level::High, Speed::Low);
loop {
info!("high");
led.set_high();
Timer::after_millis(300).await;
info!("low");
led.set_low();
Timer::after_millis(300).await;
}
}
bind_interrupts!(struct Irqs {
TIM2 => timer::CaptureCompareInterruptHandler<peripherals::TIM2>;
});
#[embassy_executor::main]
async fn main(spawner: Spawner) {
let p = embassy_stm32::init(Default::default());
info!("Hello World!");
unwrap!(spawner.spawn(blinky(p.PB2)));
let mut pwm_input = PwmInput::new(p.TIM3, p.PA6, Pull::None, khz(10));
pwm_input.enable();
loop {
Timer::after_millis(500).await;
let _per = pwm_input.get_period_ticks();
let _dc = pwm_input.get_duty_ticks();
let _pc = pwm_input.get_duty_cycle();
asm::nop();
}
}