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db409ffe7b
* Unify the system peripheral Whilst the PCR, SYSTEM and DPORT peripherals are different, we currently use them all in the same way. This PR unifies the peripheral name in the hal to `SYSTEM`. The idea is that they all do the same sort of thing, so we can collect them under the same name, and later down the line we can being to expose differences under an extended API. The benifits to this are imo quite big, the examples now are all identical, which makes things easier for esp-wifi, and paves a path towards the multichip hal. Why not do this in the PAC? Imo the pac should be as close to the hardware as possible, and the HAL is where we should abstractions such as this. * changelog
52 lines
1.3 KiB
Rust
52 lines
1.3 KiB
Rust
//! Demonstrates deep sleep with timer and ext0 (using gpio27) wakeup
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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 esp32_hal as hal;
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use esp_backtrace as _;
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use esp_println::println;
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use hal::{
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clock::ClockControl,
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entry,
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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::{Ext0WakeupSource, TimerWakeupSource, WakeupLevel},
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SocResetReason,
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},
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Delay,
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Rtc,
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IO,
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};
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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 rtc = Rtc::new(peripherals.RTC_CNTL);
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let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
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let mut ext0_pin = io.pins.gpio27;
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println!("up and runnning!");
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let reason = get_reset_reason(hal::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(30));
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let ext0 = Ext0WakeupSource::new(&mut ext0_pin, WakeupLevel::High);
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println!("sleeping!");
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delay.delay_ms(100u32);
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rtc.sleep_deep(&[&timer, &ext0], &mut delay);
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}
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