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stm32: add lp to l0

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This commit is contained in:
xoviat
2023-09-14 18:53:27 -05:00
parent 309c3d6b47
commit 9fb14379c3
5 changed files with 48 additions and 6 deletions
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25
embassy-stm32/src/rtc/v2.rs
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@ -15,7 +15,7 @@ pub(crate) enum WakeupPrescaler {
Div16 = 16,
}
#[cfg(any(stm32wb, stm32f4))]
#[cfg(any(stm32wb, stm32f4, stm32l0))]
impl From<WakeupPrescaler> for crate::pac::rtc::vals::Wucksel {
fn from(val: WakeupPrescaler) -> Self {
use crate::pac::rtc::vals::Wucksel;
@ -29,7 +29,7 @@ impl From<WakeupPrescaler> for crate::pac::rtc::vals::Wucksel {
}
}
#[cfg(any(stm32wb, stm32f4))]
#[cfg(any(stm32wb, stm32f4, stm32l0))]
impl From<crate::pac::rtc::vals::Wucksel> for WakeupPrescaler {
fn from(val: crate::pac::rtc::vals::Wucksel) -> Self {
use crate::pac::rtc::vals::Wucksel;
@ -67,10 +67,15 @@ impl super::Rtc {
pub(crate) fn start_wakeup_alarm(&self, requested_duration: embassy_time::Duration) {
use embassy_time::{Duration, TICK_HZ};
#[cfg(not(stm32l0))]
use crate::rcc::get_freqs;
#[cfg(not(stm32l0))]
let rtc_hz = unsafe { get_freqs() }.rtc.unwrap().0 as u64;
#[cfg(stm32l0)]
let rtc_hz = 32_768u64;
let rtc_ticks = requested_duration.as_ticks() * rtc_hz / TICK_HZ;
let prescaler = WakeupPrescaler::compute_min((rtc_ticks / u16::MAX as u64) as u32);
@ -109,7 +114,14 @@ impl super::Rtc {
pub(crate) fn enable_wakeup_line(&self) {
use crate::pac::EXTI;
#[cfg(stm32l0)]
EXTI.rtsr(0).modify(|w| w.set_line(20, true));
#[cfg(stm32l0)]
EXTI.imr(0).modify(|w| w.set_line(20, true));
#[cfg(not(stm32l0))]
EXTI.rtsr(0).modify(|w| w.set_line(22, true));
#[cfg(not(stm32l0))]
EXTI.imr(0).modify(|w| w.set_line(22, true));
}
@ -126,8 +138,17 @@ impl super::Rtc {
regs.cr().modify(|w| w.set_wute(false));
regs.isr().modify(|w| w.set_wutf(false));
#[cfg(not(stm32l0))]
crate::pac::EXTI.pr(0).modify(|w| w.set_line(22, true));
#[cfg(stm32l0)]
crate::pac::EXTI.pr(0).modify(|w| w.set_line(20, true));
#[cfg(not(stm32l0))]
crate::interrupt::typelevel::RTC_WKUP::unpend();
#[cfg(stm32l0)]
crate::interrupt::typelevel::RTC::unpend();
});
critical_section::with(|cs| {