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Merge pull request #3496 from chrenderle/u5-low-power

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low-power: add support for stm32u5
This commit is contained in:
Dario Nieuwenhuis 2024-11-03 20:08:33 +00:00 committed by GitHub
commit 650f97924a
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4 changed files with 20 additions and 8 deletions
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6
embassy-stm32/src/low_power.rs
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@ -112,10 +112,10 @@ pub enum StopMode {
Stop2,
}
#[cfg(any(stm32l4, stm32l5))]
#[cfg(any(stm32l4, stm32l5, stm32u5))]
use stm32_metapac::pwr::vals::Lpms;
#[cfg(any(stm32l4, stm32l5))]
#[cfg(any(stm32l4, stm32l5, stm32u5))]
impl Into<Lpms> for StopMode {
fn into(self) -> Lpms {
match self {
@ -184,7 +184,7 @@ impl Executor {
#[allow(unused_variables)]
fn configure_stop(&mut self, stop_mode: StopMode) {
#[cfg(any(stm32l4, stm32l5))]
#[cfg(any(stm32l4, stm32l5, stm32u5))]
crate::pac::PWR.cr1().modify(|m| m.set_lpms(stop_mode.into()));
#[cfg(stm32h5)]
crate::pac::PWR.pmcr().modify(|v| {

15
embassy-stm32/src/rtc/low_power.rs
View File

@ -65,7 +65,7 @@ pub(crate) enum WakeupPrescaler {
Div16 = 16,
}
#[cfg(any(stm32f4, stm32l0, stm32g4, stm32l4, stm32l5, stm32wb, stm32h5, stm32g0))]
#[cfg(any(stm32f4, stm32l0, stm32g4, stm32l4, stm32l5, stm32wb, stm32h5, stm32g0, stm32u5))]
impl From<WakeupPrescaler> for crate::pac::rtc::vals::Wucksel {
fn from(val: WakeupPrescaler) -> Self {
use crate::pac::rtc::vals::Wucksel;
@ -79,7 +79,7 @@ impl From<WakeupPrescaler> for crate::pac::rtc::vals::Wucksel {
}
}
#[cfg(any(stm32f4, stm32l0, stm32g4, stm32l4, stm32l5, stm32wb, stm32h5, stm32g0))]
#[cfg(any(stm32f4, stm32l0, stm32g4, stm32l4, stm32l5, stm32wb, stm32h5, stm32g0, stm32u5))]
impl From<crate::pac::rtc::vals::Wucksel> for WakeupPrescaler {
fn from(val: crate::pac::rtc::vals::Wucksel) -> Self {
use crate::pac::rtc::vals::Wucksel;
@ -219,12 +219,21 @@ impl Rtc {
pub(crate) fn enable_wakeup_line(&self) {
use crate::interrupt::typelevel::Interrupt;
use crate::pac::EXTI;
<RTC as crate::rtc::SealedInstance>::WakeupInterrupt::unpend();
unsafe { <RTC as crate::rtc::SealedInstance>::WakeupInterrupt::enable() };
#[cfg(not(stm32u5))]
{
use crate::pac::EXTI;
EXTI.rtsr(0).modify(|w| w.set_line(RTC::EXTI_WAKEUP_LINE, true));
EXTI.imr(0).modify(|w| w.set_line(RTC::EXTI_WAKEUP_LINE, true));
}
#[cfg(stm32u5)]
{
use crate::pac::RCC;
RCC.srdamr().modify(|w| w.set_rtcapbamen(true));
RCC.apb3smenr().modify(|w| w.set_rtcapbsmen(true));
}
}
}

1
embassy-stm32/src/rtc/mod.rs
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@ -285,6 +285,7 @@ trait SealedInstance {
const BACKUP_REGISTER_COUNT: usize;
#[cfg(feature = "low-power")]
#[cfg(not(stm32u5))]
const EXTI_WAKEUP_LINE: usize;
#[cfg(feature = "low-power")]

2
embassy-stm32/src/rtc/v3.rs
View File

@ -140,6 +140,8 @@ impl SealedInstance for crate::peripherals::RTC {
} else if #[cfg(any(stm32l5, stm32h5))] {
const EXTI_WAKEUP_LINE: usize = 17;
type WakeupInterrupt = crate::interrupt::typelevel::RTC;
} else if #[cfg(stm32u5)] {
type WakeupInterrupt = crate::interrupt::typelevel::RTC;
}
);