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stm32/rcc: use more PLL etc enums from PAC.

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This commit is contained in:
Dario Nieuwenhuis
2023-10-11 00:12:33 +02:00
parent eff73d6dfa
commit 0cfa8d1bb5
20 changed files with 368 additions and 932 deletions
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38
embassy-stm32/src/rcc/g0.rs
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@ -1,6 +1,8 @@
use crate::pac::flash::vals::Latency;
use crate::pac::rcc::vals::{self, Hsidiv, Sw};
pub use crate::pac::rcc::vals::{Hpre as AHBPrescaler, Pllm, Plln, Pllp, Pllq, Pllr, Ppre as APBPrescaler};
use crate::pac::rcc::vals::{self, Sw};
pub use crate::pac::rcc::vals::{
Hpre as AHBPrescaler, Hsidiv as HSI16Prescaler, Pllm, Plln, Pllp, Pllq, Pllr, Ppre as APBPrescaler,
};
use crate::pac::{FLASH, PWR, RCC};
use crate::rcc::{set_freqs, Clocks};
use crate::time::Hertz;
@ -20,33 +22,6 @@ pub enum ClockSrc {
LSI,
}
#[derive(Clone, Copy)]
pub enum HSI16Prescaler {
NotDivided,
Div2,
Div4,
Div8,
Div16,
Div32,
Div64,
Div128,
}
impl Into<Hsidiv> for HSI16Prescaler {
fn into(self) -> Hsidiv {
match self {
HSI16Prescaler::NotDivided => Hsidiv::DIV1,
HSI16Prescaler::Div2 => Hsidiv::DIV2,
HSI16Prescaler::Div4 => Hsidiv::DIV4,
HSI16Prescaler::Div8 => Hsidiv::DIV8,
HSI16Prescaler::Div16 => Hsidiv::DIV16,
HSI16Prescaler::Div32 => Hsidiv::DIV32,
HSI16Prescaler::Div64 => Hsidiv::DIV64,
HSI16Prescaler::Div128 => Hsidiv::DIV128,
}
}
}
/// The PLL configuration.
///
/// * `VCOCLK = source / m * n`
@ -104,7 +79,7 @@ impl Default for Config {
#[inline]
fn default() -> Config {
Config {
mux: ClockSrc::HSI16(HSI16Prescaler::NotDivided),
mux: ClockSrc::HSI16(HSI16Prescaler::DIV1),
ahb_pre: AHBPrescaler::DIV1,
apb_pre: APBPrescaler::DIV1,
low_power_run: false,
@ -195,7 +170,6 @@ pub(crate) unsafe fn init(config: Config) {
let (sys_clk, sw) = match config.mux {
ClockSrc::HSI16(div) => {
// Enable HSI16
let div: Hsidiv = div.into();
RCC.cr().write(|w| {
w.set_hsidiv(div);
w.set_hsion(true)
@ -262,7 +236,7 @@ pub(crate) unsafe fn init(config: Config) {
}
// Configure SYSCLK source, HCLK divisor, and PCLK divisor all at once
let (sw, hpre, ppre) = (sw.into(), config.ahb_pre.into(), config.apb_pre.into());
let (sw, hpre, ppre) = (sw.into(), config.ahb_pre, config.apb_pre);
RCC.cfgr().modify(|w| {
w.set_sw(sw);
w.set_hpre(hpre);