#![no_std] #![no_main] #![feature(type_alias_impl_trait)] use defmt::*; use embassy_executor::Spawner; 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_stm32::Config; use embassy_time::{Duration, Timer}; use {defmt_rtt as _, panic_probe as _}; #[embassy_executor::main] async fn main(_spawner: Spawner) { let mut config = Config::default(); { use embassy_stm32::rcc::*; config.rcc.hsi = Some(Hsi::Mhz64); config.rcc.csi = true; config.rcc.pll_src = PllSource::Hsi; config.rcc.pll1 = Some(Pll { prediv: PllPreDiv::DIV4, mul: PllMul::MUL50, divp: Some(PllDiv::DIV2), divq: None, divr: None, }); config.rcc.sys = Sysclk::Pll1P; // 400 Mhz config.rcc.ahb_pre = AHBPrescaler::DIV2; // 200 Mhz config.rcc.apb1_pre = APBPrescaler::DIV2; // 100 Mhz config.rcc.apb2_pre = APBPrescaler::DIV2; // 100 Mhz config.rcc.apb3_pre = APBPrescaler::DIV2; // 100 Mhz config.rcc.apb4_pre = APBPrescaler::DIV2; // 100 Mhz config.rcc.voltage_scale = VoltageScale::Scale1; } let p = embassy_stm32::init(config); info!("Hello World!"); let ch1 = PwmPin::new_ch1(p.PA6, OutputType::PushPull); let mut pwm = SimplePwm::new(p.TIM3, Some(ch1), None, None, None, 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; } }