embassy/examples/stm32h7/src/bin/rng.rs

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]

use defmt::*;
use defmt_rtt as _; // global logger
use embassy::executor::Spawner;
use embassy_stm32::rng::Rng;
use embassy_stm32::Peripherals;
use panic_probe as _;

#[embassy::main]
async fn main(_spawner: Spawner, p: Peripherals) {
    info!("Hello World!");

    let mut rng = Rng::new(p.RNG);

    let mut buf = [0u8; 16];
    unwrap!(rng.async_fill_bytes(&mut buf).await);
    info!("random bytes: {:02x}", buf);
}