#![no_std]
#![no_main]
use core::time::Duration;
use esp32_hal::{
clock::ClockControl,
entry,
peripherals::Peripherals,
prelude::*,
rtc_cntl::{
get_reset_reason,
get_wakeup_cause,
sleep::{Ext0WakeupSource, TimerWakeupSource, WakeupLevel},
SocResetReason,
},
Cpu,
Delay,
Rtc,
IO,
};
use esp_backtrace as _;
use esp_println::println;
#[entry]
fn main() -> ! {
let peripherals = Peripherals::take();
let system = peripherals.SYSTEM.split();
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
let mut rtc = Rtc::new(peripherals.LPWR);
let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
let mut ext0_pin = io.pins.gpio27;
println!("up and runnning!");
let reason = get_reset_reason(Cpu::ProCpu).unwrap_or(SocResetReason::ChipPowerOn);
println!("reset reason: {:?}", reason);
let wake_reason = get_wakeup_cause();
println!("wake reason: {:?}", wake_reason);
let mut delay = Delay::new(&clocks);
let timer = TimerWakeupSource::new(Duration::from_secs(30));
let ext0 = Ext0WakeupSource::new(&mut ext0_pin, WakeupLevel::High);
println!("sleeping!");
delay.delay_ms(100u32);
rtc.sleep_deep(&[&timer, &ext0], &mut delay);
}