Struct stm32f1xx_hal::rtc::Rtc

pub struct Rtc { /* fields omitted */ }

Interface to the real time clock

Implementations

impl Rtc

pub fn rtc(regs: RTC, bkp: &mut BackupDomain) -> Self

Initialises the RTC. The BackupDomain struct is created by Rcc.bkp.constrain().

pub fn select_frequency(&mut self, timeout: impl Into<Hertz>)

Selects the frequency of the RTC Timer NOTE: Maximum frequency of 16384 Hz using the internal LSE

pub fn set_time(&mut self, counter_value: u32)

Set the current RTC counter value to the specified amount

pub fn set_alarm(&mut self, counter_value: u32)

Sets the time at which an alarm will be triggered

This also clears the alarm flag if it is set

pub fn listen_alarm(&mut self)

Enables the RTCALARM interrupt

pub fn unlisten_alarm(&mut self)

Disables the RTCALARM interrupt

pub fn current_time(&self) -> u32

Reads the current counter

pub fn listen_seconds(&mut self)

Enables the RTC second interrupt

pub fn unlisten_seconds(&mut self)

Disables the RTC second interrupt

pub fn clear_second_flag(&mut self)

Clears the RTC second interrupt flag

pub fn clear_alarm_flag(&mut self)

Clears the RTC alarm interrupt flag

pub fn wait_alarm(&mut self) -> Result<(), Infallible>

Return Ok(()) if the alarm flag is set, Err(nb::WouldBlock) otherwise.

use nb::block;

rtc.set_alarm(rtc.read_counts() + 5);
// NOTE: Safe unwrap because Infallible can't be returned
block!(rtc.wait_alarm()).unwrap();