Scott Mabin 248fb356f8
PeripheralRef init: uart (#272)
* Add the peripheral module plus some helper macros in preparation

* peripheral macro

* Add peripheral generation macro

* Fixes after rebase

* Update the signature of Peripherals::take

* syncronise hello world example

* fmt the entire repo

Co-authored-by: Jesse Braham <jesse@beta7.io>
2022-12-12 14:45:33 +00:00

47 lines
1.1 KiB
Rust

//! This demos the watchdog timer.
//! Basically the same as `hello_world` but if you remove the call to
//! `wdt.feed()` the watchdog will reset the system.
#![no_std]
#![no_main]
use esp32c3_hal::{
clock::ClockControl,
peripherals::Peripherals,
prelude::*,
timer::TimerGroup,
Rtc,
};
use esp_backtrace as _;
use esp_println::println;
use nb::block;
use riscv_rt::entry;
#[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.RTC_CNTL);
let timer_group0 = TimerGroup::new(peripherals.TIMG0, &clocks);
let mut timer0 = timer_group0.timer0;
let mut wdt0 = timer_group0.wdt;
let timer_group1 = TimerGroup::new(peripherals.TIMG1, &clocks);
let mut wdt1 = timer_group1.wdt;
// Disable watchdog timers
rtc.swd.disable();
rtc.rwdt.disable();
wdt0.start(2u64.secs());
wdt1.disable();
timer0.start(1u64.secs());
loop {
wdt0.feed();
println!("Hello world!");
block!(timer0.wait()).unwrap();
}
}