embassy/examples/stm32g4/src/bin/pwm.rs
2023-12-28 20:09:12 +08:00

46 lines
1.2 KiB
Rust

#![no_std]
#![no_main]
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::dma;
use embassy_stm32::gpio::OutputType;
use embassy_stm32::time::khz;
use embassy_stm32::timer::simple_pwm::{PwmPin, SimplePwm};
use embassy_stm32::timer::Channel;
use embassy_time::Timer;
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_stm32::init(Default::default());
info!("Hello World!");
let ch1 = PwmPin::new_ch1(p.PC0, OutputType::PushPull);
let mut pwm = SimplePwm::new(
p.TIM1,
Some(ch1),
None,
None,
None,
khz(10),
Default::default(),
dma::NoDma,
);
let max = pwm.get_max_duty();
pwm.enable(Channel::Ch1);
info!("PWM initialized");
info!("PWM max duty {}", max);
loop {
pwm.set_duty(Channel::Ch1, 0);
Timer::after_millis(300).await;
pwm.set_duty(Channel::Ch1, max / 4);
Timer::after_millis(300).await;
pwm.set_duty(Channel::Ch1, max / 2);
Timer::after_millis(300).await;
pwm.set_duty(Channel::Ch1, max - 1);
Timer::after_millis(300).await;
}
}