64 lines
1.7 KiB
Rust
64 lines
1.7 KiB
Rust
//! Demonstrates deep sleep with timer, using GPIO2 (low) and GPIO3 (high) as
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//! wakeup.
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//% CHIPS: esp32c3 esp32s3
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#![no_std]
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#![no_main]
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use core::time::Duration;
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use esp_backtrace as _;
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use esp_hal::{
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clock::ClockControl,
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delay::Delay,
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entry,
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gpio,
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gpio::IO,
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peripherals::Peripherals,
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prelude::*,
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rtc_cntl::{
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get_reset_reason,
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get_wakeup_cause,
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sleep::{RtcioWakeupSource, TimerWakeupSource, WakeupLevel},
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Rtc,
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SocResetReason,
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},
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Cpu,
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};
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use esp_println::println;
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#[entry]
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fn main() -> ! {
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let peripherals = Peripherals::take();
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let system = peripherals.SYSTEM.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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let mut io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
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let mut rtc = Rtc::new(peripherals.LPWR);
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println!("up and runnning!");
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let reason = get_reset_reason(Cpu::ProCpu).unwrap_or(SocResetReason::ChipPowerOn);
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println!("reset reason: {:?}", reason);
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let wake_reason = get_wakeup_cause();
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println!("wake reason: {:?}", wake_reason);
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let mut delay = Delay::new(&clocks);
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let timer = TimerWakeupSource::new(Duration::from_secs(10));
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#[cfg(feature = "esp32c3")]
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let wakeup_pins: &mut [(&mut dyn gpio::RTCPinWithResistors, WakeupLevel)] = &mut [
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(&mut io.pins.gpio2, WakeupLevel::Low),
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(&mut io.pins.gpio3, WakeupLevel::High),
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];
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#[cfg(feature = "esp32s3")]
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let mut wakeup_pins: &mut [(&mut dyn gpio::RTCPin, WakeupLevel)] =
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&mut [(&mut io.pins.gpio18, WakeupLevel::Low)];
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let rtcio = RtcioWakeupSource::new(wakeup_pins);
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println!("sleeping!");
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delay.delay_ms(100u32);
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rtc.sleep_deep(&[&timer, &rtcio], &mut delay);
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}
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