#![no_std]
#![no_main]
use esp32c3_hal::{
clock::ClockControl,
gpio::IO,
ledc::{
channel::{self, ChannelIFace},
timer::{self, TimerIFace},
LSGlobalClkSource,
LowSpeed,
LEDC,
},
peripherals::Peripherals,
prelude::*,
timer::TimerGroup,
Rtc,
};
use esp_backtrace as _;
#[entry]
fn main() -> ! {
let peripherals = Peripherals::take();
let mut system = peripherals.SYSTEM.split();
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
let mut rtc = Rtc::new(peripherals.RTC_CNTL);
let timer_group0 = TimerGroup::new(peripherals.TIMG0, &clocks);
let mut wdt0 = timer_group0.wdt;
let timer_group1 = TimerGroup::new(peripherals.TIMG1, &clocks);
let mut wdt1 = timer_group1.wdt;
rtc.swd.disable();
rtc.rwdt.disable();
wdt0.disable();
wdt1.disable();
let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
let led = io.pins.gpio4.into_push_pull_output();
let mut ledc = LEDC::new(
peripherals.LEDC,
&clocks,
&mut system.peripheral_clock_control,
);
ledc.set_global_slow_clock(LSGlobalClkSource::APBClk);
let mut lstimer0 = ledc.get_timer::<LowSpeed>(timer::Number::Timer2);
lstimer0
.configure(timer::config::Config {
duty: timer::config::Duty::Duty5Bit,
clock_source: timer::LSClockSource::APBClk,
frequency: 24u32.kHz(),
})
.unwrap();
let mut channel0 = ledc.get_channel(channel::Number::Channel0, led);
channel0
.configure(channel::config::Config {
timer: &lstimer0,
duty_pct: 10,
})
.unwrap();
loop {}
}