//! Outputs the current time in seconds to hstdout using the real time clock
#![deny(unsafe_code)]
#![no_std]
#![no_main]
use panic_semihosting as _;
use cortex_m_semihosting::hprintln;
use stm32f1xx_hal::{
prelude::*,
pac,
rtc::Rtc,
};
use cortex_m_rt::entry;
#[entry]
fn main() -> ! {
let p = pac::Peripherals::take().unwrap();
let mut pwr = p.PWR;
let mut rcc = p.RCC.constrain();
let mut backup_domain = rcc.bkp.constrain(p.BKP, &mut rcc.apb1, &mut pwr);
let rtc = Rtc::rtc(p.RTC, &mut backup_domain);
loop {
hprintln!("time: {}", rtc.seconds()).unwrap();
}
}