liebman 905c0af154
implement fetching the RTC timer value in milliseconds and mircroseconds (#476)
* implement fetching the rtc timer value in miliseconds and mircroseconds

* fmt cleanup

* add rtc_time examples

* get_time_raw/esp32: delay 1us between time update checks like esp-idf

* cargo fmt
2023-05-08 07:59:37 -07:00

43 lines
1.0 KiB
Rust

//! Prints time in milliseconds from the RTC Timer
#![no_std]
#![no_main]
use esp32s2_hal::{
clock::ClockControl,
peripherals::Peripherals,
prelude::*,
timer::TimerGroup,
Delay,
Rtc,
};
use esp_backtrace as _;
#[entry]
fn main() -> ! {
let peripherals = Peripherals::take();
let mut system = peripherals.SYSTEM.split();
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
let timer_group0 = TimerGroup::new(
peripherals.TIMG0,
&clocks,
&mut system.peripheral_clock_control,
);
let mut wdt = timer_group0.wdt;
let mut rtc = Rtc::new(peripherals.RTC_CNTL);
// Disable MWDT and RWDT (Watchdog) flash boot protection
wdt.disable();
rtc.rwdt.disable();
// Initialize the Delay peripheral, and use it to toggle the LED state in a
// loop.
let mut delay = Delay::new(&clocks);
loop {
esp_println::println!("rtc time in milliseconds is {}", rtc.get_time_ms());
delay.delay_ms(1000u32);
}
}