max/embassy
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

stm32/rtc: restructure

Browse Source
This commit is contained in:
xoviat
2023-08-06 11:58:28 -05:00
parent 66c1712118
commit 28618d12a1
4 changed files with 35 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
embassy-stm32/src/rtc/v3.rs
View File

@ -1,12 +1,10 @@
use stm32_metapac::rtc::vals::{Calp, Calw16, Calw8, Fmt, Init, Key, Osel, Pol, TampalrmPu, TampalrmType};
use super::{sealed, Instance, RtcCalibrationCyclePeriod, RtcConfig};
use super::{sealed, Instance, RtcCalibrationCyclePeriod, RtcClockSource, RtcConfig};
use crate::pac::rtc::Rtc;
impl<'d, T: Instance> super::Rtc<'d, T> {
/// Applies the RTC config
/// It this changes the RTC clock source the time will be reset
pub(super) fn apply_config(&mut self, rtc_config: RtcConfig) {
pub(super) fn enable(clock_source: RtcClockSource) {
// Unlock the backup domain
#[cfg(not(any(rtc_v3u5, rcc_wl5, rcc_wle)))]
{
@ -24,11 +22,10 @@ impl<'d, T: Instance> super::Rtc<'d, T> {
let reg = crate::pac::RCC.bdcr().read();
assert!(!reg.lsecsson(), "RTC is not compatible with LSE CSS, yet.");
let config_rtcsel = rtc_config.clock_config as u8;
#[cfg(not(any(rcc_wl5, rcc_wle)))]
let config_rtcsel = crate::pac::rcc::vals::Rtcsel::from_bits(config_rtcsel);
let config_rtcsel = crate::pac::rcc::vals::Rtcsel::from_bits(clock_source as u8);
if !reg.rtcen() || reg.rtcsel() != config_rtcsel {
if !reg.rtcen() || reg.rtcsel() != clock_source as u8 {
crate::pac::RCC.bdcr().modify(|w| w.set_bdrst(true));
crate::pac::RCC.bdcr().modify(|w| {
@ -36,7 +33,7 @@ impl<'d, T: Instance> super::Rtc<'d, T> {
w.set_bdrst(false);
// Select RTC source
w.set_rtcsel(config_rtcsel);
w.set_rtcsel(clock_source as u8);
w.set_rtcen(true);
@ -49,7 +46,11 @@ impl<'d, T: Instance> super::Rtc<'d, T> {
w.set_lsebyp(reg.lsebyp());
});
}
}
/// Applies the RTC config
/// It this changes the RTC clock source the time will be reset
pub(super) fn configure(&mut self, rtc_config: RtcConfig) {
self.write(true, |rtc| {
rtc.cr().modify(|w| {
w.set_fmt(Fmt::TWENTYFOURHOUR);
@ -69,8 +70,6 @@ impl<'d, T: Instance> super::Rtc<'d, T> {
w.set_tampalrm_pu(TampalrmPu::NOPULLUP);
});
});
self.rtc_config = rtc_config;
}
const RTC_CALR_MIN_PPM: f32 = -487.1;