2021-10-26 13:45:53 +02:00
|
|
|
#![no_std]
|
|
|
|
#![no_main]
|
|
|
|
#![feature(type_alias_impl_trait)]
|
|
|
|
|
2022-04-02 04:35:06 +02:00
|
|
|
use defmt::*;
|
|
|
|
use defmt_rtt as _; // global logger
|
2021-10-26 13:45:53 +02:00
|
|
|
use embassy::executor::Spawner;
|
|
|
|
use embassy_stm32::rcc::{ClockSrc, PLLClkDiv, PLLMul, PLLSource, PLLSrcDiv};
|
|
|
|
use embassy_stm32::rng::Rng;
|
|
|
|
use embassy_stm32::{Config, Peripherals};
|
2022-04-02 04:35:06 +02:00
|
|
|
use panic_probe as _;
|
2021-10-26 13:45:53 +02:00
|
|
|
|
|
|
|
fn config() -> Config {
|
|
|
|
let mut config = Config::default();
|
2022-04-12 05:06:22 +02:00
|
|
|
// 72Mhz clock (16 / 1 * 18 / 4)
|
2022-01-04 11:18:59 +01:00
|
|
|
config.rcc.mux = ClockSrc::PLL(
|
2021-10-26 13:45:53 +02:00
|
|
|
PLLSource::HSI16,
|
2022-04-12 05:06:22 +02:00
|
|
|
PLLClkDiv::Div4,
|
2021-10-26 13:45:53 +02:00
|
|
|
PLLSrcDiv::Div1,
|
2022-04-12 05:06:22 +02:00
|
|
|
PLLMul::Mul18,
|
|
|
|
Some(PLLClkDiv::Div6), // 48Mhz (16 / 1 * 18 / 6)
|
2022-01-04 11:18:59 +01:00
|
|
|
);
|
2021-10-26 13:45:53 +02:00
|
|
|
config
|
|
|
|
}
|
|
|
|
|
|
|
|
#[embassy::main(config = "config()")]
|
|
|
|
async fn main(_spawner: Spawner, p: Peripherals) {
|
|
|
|
info!("Hello World!");
|
|
|
|
|
2022-01-27 00:08:02 +01:00
|
|
|
let mut rng = Rng::new(p.RNG);
|
2021-10-26 13:45:53 +02:00
|
|
|
|
2022-01-27 00:08:02 +01:00
|
|
|
let mut buf = [0u8; 16];
|
|
|
|
unwrap!(rng.async_fill_bytes(&mut buf).await);
|
|
|
|
info!("random bytes: {:02x}", buf);
|
2021-10-26 13:45:53 +02:00
|
|
|
}
|