447411fb58
* Rework hal initialization * Turn sw interrupt control into a virtual peripheral * Return a tuple instead of a named struct * Fix docs * Remove SystemClockControl * Move software interrupts under interrupt * Re-document what's left in system * Update time docs * Update sw int docs * Introduce Config * Fix tests * Remove redundant inits * Doc * Clean up examples&tests * Update tests * Add changelog entry * Start migration guide * Restore some convenience-imports * Remove Config from prelude
68 lines
1.9 KiB
Rust
68 lines
1.9 KiB
Rust
//! Demonstrates deep sleep with timer, using RTC pins as
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//! wakeup.
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//!
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//! The following wiring is assumed for ESP32C3:
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//! - RTC wakeup pin => GPIO2 (low level)
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//! - RTC wakeup pin => GPIO3 (high level)
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//! The following wiring is assumed for ESP32S3:
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//! - RTC wakeup pin => GPIO18 (low level)
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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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delay::Delay,
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entry,
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gpio,
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gpio::Io,
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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, clocks) = esp_hal::init(esp_hal::Config::default());
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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 delay = Delay::new(&clocks);
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let timer = TimerWakeupSource::new(Duration::from_secs(10));
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cfg_if::cfg_if! {
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if #[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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} else if #[cfg(feature = "esp32s3")] {
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let wakeup_pins: &mut [(&mut dyn gpio::RtcPin, WakeupLevel)] = &mut [
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(&mut io.pins.gpio18, WakeupLevel::Low)
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];
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}
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}
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let rtcio = RtcioWakeupSource::new(wakeup_pins);
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println!("sleeping!");
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delay.delay_millis(100);
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rtc.sleep_deep(&[&timer, &rtcio]);
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}
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