embassy/examples/stm32wl/src/bin/rtc.rs
Phil Markgraf 3bae533066
Enable RTC on STM32WL chips (#1645)
* Add clippy allow to not report if same then branch

* Support enabling RTC clock on STM32WL

* Add clippy allow to not report if same then branch

* Support enabling RTC clock on STM32WL

* Add rtc example for stm32wl

* Address code review feedback
2023-07-15 13:40:23 +02:00

44 lines
1.2 KiB
Rust

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use chrono::{NaiveDate, NaiveDateTime};
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::rcc::{self, ClockSrc};
use embassy_stm32::rtc::{Rtc, RtcConfig};
use embassy_stm32::Config;
use embassy_time::{Duration, Timer};
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = {
let mut config = Config::default();
config.rcc.mux = ClockSrc::HSE32;
config.rcc.rtc_mux = rcc::RtcClockSource::LSE32;
config.rcc.enable_rtc_apb = true;
embassy_stm32::init(config)
};
info!("Hello World!");
let now = NaiveDate::from_ymd_opt(2020, 5, 15)
.unwrap()
.and_hms_opt(10, 30, 15)
.unwrap();
let mut rtc = Rtc::new(
p.RTC,
RtcConfig::default().clock_config(embassy_stm32::rtc::RtcClockSource::LSE),
);
info!("Got RTC! {:?}", now.timestamp());
rtc.set_datetime(now.into()).expect("datetime not set");
// In reality the delay would be much longer
Timer::after(Duration::from_millis(20000)).await;
let then: NaiveDateTime = rtc.now().unwrap().into();
info!("Got RTC! {:?}", then.timestamp());
}