#![deny(unsafe_code)]
#![allow(clippy::empty_loop)]
#![no_main]
#![no_std]
use panic_halt as _;
use cortex_m::asm;
use stm32f1xx_hal::{pac, prelude::*, timer::Timer};
use cortex_m_rt::entry;
#[entry]
fn main() -> ! {
let p = pac::Peripherals::take().unwrap();
let mut flash = p.FLASH.constrain();
let rcc = p.RCC.constrain();
let clocks = rcc.cfgr.freeze(&mut flash.acr);
let mut afio = p.AFIO.constrain();
let gpioa = p.GPIOA.split();
let mut gpiob = p.GPIOB.split();
let (_pa15, _pb3, pb4) = afio.mapr.disable_jtag(gpioa.pa15, gpiob.pb3, gpiob.pb4);
let p0 = pb4.into_alternate_push_pull(&mut gpiob.crl);
let p1 = gpiob.pb5.into_alternate_push_pull(&mut gpiob.crl);
let pwm = Timer::new(p.TIM3, &clocks).pwm_hz((p0, p1), &mut afio.mapr, 1.kHz());
let max = pwm.get_max_duty();
let mut pwm_channels = pwm.split();
pwm_channels.0.enable();
pwm_channels.1.enable();
pwm_channels.0.set_duty(max);
pwm_channels.1.set_duty(max);
asm::bkpt();
pwm_channels.1.set_duty(max / 4);
asm::bkpt();
pwm_channels.0.set_duty(0);
pwm_channels.1.set_duty(0);
asm::bkpt();
loop {}
}