58 lines
1.9 KiB
Rust
58 lines
1.9 KiB
Rust
#![no_std]
|
|
#![no_main]
|
|
|
|
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::Config;
|
|
use embassy_time::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(HSIPrescaler::DIV1);
|
|
config.rcc.csi = true;
|
|
config.rcc.pll1 = Some(Pll {
|
|
source: PllSource::HSI,
|
|
prediv: PllPreDiv::DIV4,
|
|
mul: PllMul::MUL50,
|
|
divp: Some(PllDiv::DIV2),
|
|
divq: None,
|
|
divr: None,
|
|
});
|
|
config.rcc.sys = Sysclk::PLL1_P; // 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_pin = PwmPin::new_ch1(p.PA6, OutputType::PushPull);
|
|
let mut pwm = SimplePwm::new(p.TIM3, Some(ch1_pin), None, None, None, khz(10), Default::default());
|
|
let mut ch1 = pwm.ch1();
|
|
ch1.enable();
|
|
|
|
info!("PWM initialized");
|
|
info!("PWM max duty {}", ch1.max_duty_cycle());
|
|
|
|
loop {
|
|
ch1.set_duty_cycle_fully_off();
|
|
Timer::after_millis(300).await;
|
|
ch1.set_duty_cycle_fraction(1, 4);
|
|
Timer::after_millis(300).await;
|
|
ch1.set_duty_cycle_fraction(1, 2);
|
|
Timer::after_millis(300).await;
|
|
ch1.set_duty_cycle(ch1.max_duty_cycle() - 1);
|
|
Timer::after_millis(300).await;
|
|
}
|
|
}
|