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check PLL settings before set VOS

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This commit is contained in:
eZio Pan 2023-11-06 18:30:59 +08:00
parent 74f70dc7b4
commit 8f543062aa
1 changed files with 8 additions and 10 deletions
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18
embassy-stm32/src/rcc/f4f7.rs
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@ -1,8 +1,9 @@
use crate::pac::pwr::vals::Vos;
pub use crate::pac::rcc::vals::{
Hpre as AHBPrescaler, Pllm as PllPreDiv, Plln as PllMul, Pllp, Pllq, Pllr, Pllsrc as PllSource,
Ppre as APBPrescaler, Sw as Sysclk,
};
use crate::pac::{FLASH, RCC};
use crate::pac::{FLASH, PWR, RCC};
use crate::rcc::{set_freqs, Clocks};
use crate::time::Hertz;
@ -100,12 +101,17 @@ impl Default for Config {
}
pub(crate) unsafe fn init(config: Config) {
// set VOS to SCALE1, if use PLL
// TODO: check real clock speed before set VOS
if config.pll.is_some() {
PWR.cr1().modify(|w| w.set_vos(Vos::SCALE1));
}
// always enable overdrive for now. Make it configurable in the future.
#[cfg(not(any(
stm32f401, stm32f410, stm32f411, stm32f412, stm32f413, stm32f423, stm32f405, stm32f407, stm32f415, stm32f417
)))]
{
use crate::pac::PWR;
PWR.cr1().modify(|w| w.set_oden(true));
while !PWR.csr1().read().odrdy() {}
@ -113,14 +119,6 @@ pub(crate) unsafe fn init(config: Config) {
while !PWR.csr1().read().odswrdy() {}
}
#[cfg(any(stm32f401, stm32f410, stm32f411, stm32f412, stm32f413, stm32f423))]
{
use crate::pac::pwr::vals::Vos;
use crate::pac::PWR;
PWR.cr1().modify(|w| w.set_vos(Vos::SCALE1));
}
// Configure HSI
let hsi = match config.hsi {
false => {