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stm32/rcc: add LSE/LSI to all chips, add RTC to more chips.

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This commit is contained in:
Dario Nieuwenhuis
2023-10-11 03:53:27 +02:00
parent 5a19d18b9c
commit b91d1eaca0
31 changed files with 267 additions and 403 deletions
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25
embassy-stm32/src/rcc/f4.rs
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@ -1,17 +1,11 @@
use stm32_metapac::rcc::vals::{Pllm, Plln, Pllq, Pllr};
use crate::pac::rcc::vals::{Hpre, Ppre, Sw};
use crate::pac::rcc::vals::{Hpre, Pllm, Plln, Pllq, Pllr, Ppre, Sw};
use crate::pac::{FLASH, PWR, RCC};
use crate::rcc::bd::{BackupDomain, RtcClockSource};
use crate::rcc::{set_freqs, Clocks};
use crate::time::Hertz;
/// HSI speed
pub const HSI_FREQ: Hertz = Hertz(16_000_000);
/// LSI speed
pub const LSI_FREQ: Hertz = Hertz(32_000);
/// Clocks configuration
#[non_exhaustive]
#[derive(Default)]
@ -30,9 +24,7 @@ pub struct Config {
pub pllsai: Option<Hertz>,
pub pll48: bool,
pub rtc: Option<RtcClockSource>,
pub lsi: bool,
pub lse: Option<Hertz>,
pub ls: super::LsConfig,
}
#[cfg(stm32f410)]
@ -344,17 +336,7 @@ pub(crate) unsafe fn init(config: Config) {
})
});
BackupDomain::configure_ls(
config.rtc.unwrap_or(RtcClockSource::NOCLOCK),
config.lsi,
config.lse.map(|_| Default::default()),
);
let rtc = match config.rtc {
Some(RtcClockSource::LSI) => Some(LSI_FREQ),
Some(RtcClockSource::LSE) => Some(config.lse.unwrap()),
_ => None,
};
let rtc = config.ls.init();
set_freqs(Clocks {
sys: Hertz(sysclk),
@ -377,7 +359,6 @@ pub(crate) unsafe fn init(config: Config) {
pllsai: plls.pllsaiclk.map(Hertz),
rtc,
rtc_hse: None,
});
}