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Fix rng clock

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This commit is contained in:
Dion Dokter 2024-04-16 16:36:10 +02:00
parent a5f754238b
commit 90f1d29c24
1 changed files with 3 additions and 1 deletions
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4
examples/stm32u0/src/bin/rng.rs
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@ -3,6 +3,7 @@
use defmt::*; use defmt::*;
use embassy_executor::Spawner; use embassy_executor::Spawner;
use embassy_stm32::rcc::mux::Clk48sel;
use embassy_stm32::rng::Rng; use embassy_stm32::rng::Rng;
use embassy_stm32::{bind_interrupts, peripherals, rng, Config}; use embassy_stm32::{bind_interrupts, peripherals, rng, Config};
use {defmt_rtt as _, panic_probe as _}; use {defmt_rtt as _, panic_probe as _};
@ -26,6 +27,8 @@ async fn main(_spawner: Spawner) {
divr: Some(PllRDiv::DIV2), // 112 / 2 = 56 MHz divr: Some(PllRDiv::DIV2), // 112 / 2 = 56 MHz
}); });
config.rcc.sys = Sysclk::PLL1_R; config.rcc.sys = Sysclk::PLL1_R;
config.rcc.hsi48 = Some(Hsi48Config { sync_from_usb: false }); // needed for RNG
config.rcc.mux.clk48sel = Clk48sel::HSI48; // needed for RNG (or use MSI or PLLQ if you want)
} }
let p = embassy_stm32::init(config); let p = embassy_stm32::init(config);
@ -33,7 +36,6 @@ async fn main(_spawner: Spawner) {
info!("Hello World!"); info!("Hello World!");
let mut rng = Rng::new(p.RNG, Irqs); let mut rng = Rng::new(p.RNG, Irqs);
info!("Hello World 2!");
let mut buf = [0u8; 16]; let mut buf = [0u8; 16];
unwrap!(rng.async_fill_bytes(&mut buf).await); unwrap!(rng.async_fill_bytes(&mut buf).await);