embassy/examples/stm32h7/src/bin/pwm.rs
Grant Miller 5ecbe5c918 embassy-stm32: Simplify time
- Remove unused `MilliSeconds`, `MicroSeconds`, and `NanoSeconds` types
- Remove `Bps`, `KiloHertz`, and `MegaHertz` types that were only used
for converting to `Hertz`
- Replace all instances of `impl Into<Hertz>` with `Hertz`
- Add `hz`, `khz`, and `mhz` methods to `Hertz`, as well as
free function shortcuts
- Remove `U32Ext` extension trait
2022-07-10 21:46:45 -05:00

48 lines
1.4 KiB
Rust

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::*;
use embassy::executor::Spawner;
use embassy::time::{Duration, Timer};
use embassy_stm32::pwm::simple_pwm::SimplePwm;
use embassy_stm32::pwm::Channel;
use embassy_stm32::time::{khz, mhz};
use embassy_stm32::{Config, Peripherals};
use {defmt_rtt as _, panic_probe as _};
pub fn config() -> Config {
let mut config = Config::default();
config.rcc.sys_ck = Some(mhz(400));
config.rcc.hclk = Some(mhz(400));
config.rcc.pll1.q_ck = Some(mhz(100));
config.rcc.pclk1 = Some(mhz(100));
config.rcc.pclk2 = Some(mhz(100));
config.rcc.pclk3 = Some(mhz(100));
config.rcc.pclk4 = Some(mhz(100));
config
}
#[embassy::main(config = "config()")]
async fn main(_spawner: Spawner, p: Peripherals) {
info!("Hello World!");
let mut pwm = SimplePwm::new_1ch(p.TIM3, p.PA6, khz(10));
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(Duration::from_millis(300)).await;
pwm.set_duty(Channel::Ch1, max / 4);
Timer::after(Duration::from_millis(300)).await;
pwm.set_duty(Channel::Ch1, max / 2);
Timer::after(Duration::from_millis(300)).await;
pwm.set_duty(Channel::Ch1, max - 1);
Timer::after(Duration::from_millis(300)).await;
}
}