#![deny(unsafe_code)]
#![no_main]
#![no_std]
use panic_halt as _;
use cortex_m::asm;
use cortex_m_rt::entry;
use gd32f1x0_hal::{
gpio::{gpioa::PA11, OutputMode, PullMode},
pac,
prelude::*,
pwm::Channel,
time::U32Ext,
timer::Timer,
};
#[entry]
fn main() -> ! {
let p = pac::Peripherals::take().unwrap();
let mut rcu = p.RCU.constrain();
let mut flash = p.FMC.constrain();
let clocks = rcu.cfgr.freeze(&mut flash.ws);
let mut gpioa = p.GPIOA.split(&mut rcu.ahb);
let c0 = gpioa
.pa8
.into_alternate(&mut gpioa.config, PullMode::Floating, OutputMode::PushPull);
let c1 = gpioa
.pa9
.into_alternate(&mut gpioa.config, PullMode::Floating, OutputMode::PushPull);
let c2 = gpioa
.pa10
.into_alternate(&mut gpioa.config, PullMode::Floating, OutputMode::PushPull);
let pins = (Some(c0), Some(c1), Some(c2), None::<PA11<_>>);
let mut pwm = Timer::timer0(p.TIMER0, &clocks, &mut rcu.apb2).pwm(pins, 1.khz());
pwm.enable(Channel::C0);
pwm.enable(Channel::C1);
pwm.enable(Channel::C2);
pwm.set_period(500.ms());
asm::bkpt();
pwm.set_period(1.khz());
asm::bkpt();
let max = pwm.get_max_duty();
pwm.set_duty(Channel::C2, max);
asm::bkpt();
pwm.set_duty(Channel::C2, max / 4);
asm::bkpt();
pwm.set_duty(Channel::C2, 0);
asm::bkpt();
let mut pwm_channel = pwm.split().2.unwrap();
pwm_channel.set_duty(max);
asm::bkpt();
pwm_channel.set_duty(max / 4);
asm::bkpt();
pwm_channel.set_duty(0);
asm::bkpt();
#[allow(clippy::empty_loop)]
loop {}
}