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Improve LowPowerTimer. #321

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10 changes: 9 additions & 1 deletion src/lptimer.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ use crate::rcc::{Clocks, Enable, RccBus, Reset, CCIPR};
use crate::stm32::{LPTIM1, LPTIM2, RCC};

/// Clock sources available for timers
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum ClockSource {
/// Use PCLK as clock source
PCLK = 0b00,
Expand All @@ -19,6 +20,7 @@ pub enum ClockSource {
///
/// Allow missing docs because the type is self explanatory
#[allow(missing_docs)]
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum PreScaler {
U1 = 0b000,
U2 = 0b001,
Expand All @@ -33,14 +35,15 @@ pub enum PreScaler {
/// Count modes that are available.
///
/// All ClockSources currently supported require the Internal count mode
#[derive(PartialEq)]
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum CountMode {
/// Use an internal clock source (which also includes LSE)
Internal,
// External,
}

/// All currently supported interrupt events
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum Event {
/// Occurs when the compare value is the same as the counter value
CompareMatch,
Expand Down Expand Up @@ -293,6 +296,11 @@ macro_rules! hal {
self.lptim.cnt.read().bits() as u16
}

pub fn count() -> u16 {
let lptim = unsafe { &*<$timer_type>::ptr() };
lptim.cnt.read().bits() as u16
}

/// Get the value of the ARR register for this
/// LowPowerTimer
#[inline]
Expand Down