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examples/stm32g4: add pwm example

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This commit is contained in:
Dario Nieuwenhuis 2021-11-27 03:05:26 +01:00
parent d7d1258411
commit e40555e245
2 changed files with 37 additions and 1 deletions
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2
examples/stm32g4/Cargo.toml
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@ -8,7 +8,7 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "time-driver-tim2", "stm32g491re", "memory-x", "unstable-pac"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "time-driver-tim3", "stm32g491re", "memory-x", "unstable-pac"] }
embassy-hal-common = {version = "0.1.0", path = "../../embassy-hal-common" }
defmt = "0.3"

36
examples/stm32g4/src/bin/pwm.rs Normal file
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@ -0,0 +1,36 @@
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use embassy::executor::Spawner;
use embassy::time::{Duration, Timer};
use embassy_stm32::gpio::NoPin;
use embassy_stm32::pwm::{Channel, Pwm};
use embassy_stm32::time::U32Ext;
use embassy_stm32::Peripherals;
use example_common::*;
#[embassy::main]
async fn main(_spawner: Spawner, p: Peripherals) {
info!("Hello World!");
let mut pwm = Pwm::new(p.TIM2, p.PA5, NoPin, NoPin, NoPin, 10000.hz());
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;
}
}