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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::{ pub use crate::pac::rcc::vals::{
Hpre as AHBPrescaler, Pllm as PllPreDiv, Plln as PllMul, Pllp, Pllq, Pllr, Pllsrc as PllSource, Hpre as AHBPrescaler, Pllm as PllPreDiv, Plln as PllMul, Pllp, Pllq, Pllr, Pllsrc as PllSource,
Ppre as APBPrescaler, Sw as Sysclk, 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::rcc::{set_freqs, Clocks};
use crate::time::Hertz; use crate::time::Hertz;
@ -100,12 +101,17 @@ impl Default for Config {
} }
pub(crate) unsafe fn init(config: 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. // always enable overdrive for now. Make it configurable in the future.
#[cfg(not(any( #[cfg(not(any(
stm32f401, stm32f410, stm32f411, stm32f412, stm32f413, stm32f423, stm32f405, stm32f407, stm32f415, stm32f417 stm32f401, stm32f410, stm32f411, stm32f412, stm32f413, stm32f423, stm32f405, stm32f407, stm32f415, stm32f417
)))] )))]
{ {
use crate::pac::PWR;
PWR.cr1().modify(|w| w.set_oden(true)); PWR.cr1().modify(|w| w.set_oden(true));
while !PWR.csr1().read().odrdy() {} while !PWR.csr1().read().odrdy() {}
@ -113,14 +119,6 @@ pub(crate) unsafe fn init(config: Config) {
while !PWR.csr1().read().odswrdy() {} 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 // Configure HSI
let hsi = match config.hsi { let hsi = match config.hsi {
false => { false => {