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stm32g4: PLL: Add support for configuring PLL_P and PLL_Q

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This commit is contained in:
Kevin Lannen 2023-06-14 10:44:51 -06:00
parent c822fd46e5
commit c94ba84892
2 changed files with 184 additions and 38 deletions
examples/stm32g4/src/bin
pll.rs

15
examples/stm32g4/src/bin/pll.rs
View file

@ -4,7 +4,7 @@
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::rcc::{ClockSrc, PllM, PllN, PllR, PllSrc};
use embassy_stm32::rcc::{ClockSrc, Pll, PllM, PllN, PllR, PllSrc};
use embassy_stm32::Config;
use embassy_time::{Duration, Timer};
use {defmt_rtt as _, panic_probe as _};
@ -13,8 +13,17 @@ use {defmt_rtt as _, panic_probe as _};
async fn main(_spawner: Spawner) {
let mut config = Config::default();
// Configure PLL to max frequency of 170 MHz
config.rcc.mux = ClockSrc::PLLCLK(PllSrc::HSI16, PllM::Div4, PllN::Mul85, PllR::Div2);
config.rcc.pll = Some(Pll {
source: PllSrc::HSI16,
prediv_m: PllM::Div4,
mul_n: PllN::Mul85,
div_p: None,
div_q: None,
// Main system clock at 170 MHz
div_r: Some(PllR::Div2),
});
config.rcc.mux = ClockSrc::PLL;
let _p = embassy_stm32::init(config);
info!("Hello World!");