#![deny(warnings)]
#![no_main]
#![no_std]
use cortex_m::asm;
use cortex_m_rt::entry;
#[macro_use]
mod utilities;
use stm32h7xx_hal::{pac, prelude::*, rcc::rec};
use log::info;
#[entry]
fn main() -> ! {
utilities::logger::init();
let dp = pac::Peripherals::take().expect("Cannot take peripherals");
info!("Setup PWR... ");
let pwr = dp.PWR.constrain();
let pwrcfg = example_power!(pwr).freeze();
info!("Setup RCC... ");
let rcc = dp.RCC.constrain();
let ccdr = rcc.sys_ck(8.MHz()).freeze(pwrcfg, &dp.SYSCFG);
let gpiob = dp.GPIOB.split(ccdr.peripheral.GPIOB);
info!("");
info!("stm32h7xx-hal example - PWM from LPTIM");
info!("");
let mut pwm = dp.LPTIM2.pwm(
gpiob.pb13.into_alternate(),
1.kHz(),
ccdr.peripheral
.LPTIM2
.kernel_clk_mux(rec::Lptim2ClkSel::Lsi),
&ccdr.clocks,
);
pwm.enable();
let max = pwm.get_max_duty();
pwm.set_duty(max / 2);
info!("50%");
pwm.enable();
asm::bkpt();
info!("25%");
pwm.set_duty(max / 4);
asm::bkpt();
info!("12.5%");
pwm.set_duty(max / 8);
asm::bkpt();
info!("100%");
pwm.set_duty(max);
asm::bkpt();
loop {
cortex_m::asm::nop()
}
}