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#![no_std]
#![no_main]
use core::mem::MaybeUninit;
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::gpio::{Level, Output, Speed};
use embassy_stm32::SharedData;
use embassy_time::Timer;
use {defmt_rtt as _, panic_probe as _};
#[unsafe(link_section = ".ram_d3.shared_data")]
static SHARED_DATA: MaybeUninit<SharedData> = MaybeUninit::uninit();
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let mut config = embassy_stm32::Config::default();
{
use embassy_stm32::rcc::*;
config.rcc.hsi = Some(HSIPrescaler::DIV1);
config.rcc.csi = true;
config.rcc.pll1 = Some(Pll {
source: PllSource::HSI,
prediv: PllPreDiv::DIV4,
mul: PllMul::MUL50,
divp: Some(PllDiv::DIV2),
divq: Some(PllDiv::DIV8), // 100mhz
divr: None,
});
config.rcc.sys = Sysclk::PLL1_P; // 400 Mhz
config.rcc.ahb_pre = AHBPrescaler::DIV2; // 200 Mhz
config.rcc.apb1_pre = APBPrescaler::DIV2; // 100 Mhz
config.rcc.apb2_pre = APBPrescaler::DIV2; // 100 Mhz
config.rcc.apb3_pre = APBPrescaler::DIV2; // 100 Mhz
config.rcc.apb4_pre = APBPrescaler::DIV2; // 100 Mhz
config.rcc.voltage_scale = VoltageScale::Scale1;
config.rcc.supply_config = SupplyConfig::DirectSMPS;
}
let p = embassy_stm32::init_primary(config, &SHARED_DATA);
info!("Hello World!");
let mut led = Output::new(p.PB14, Level::High, Speed::Low);
loop {
info!("high");
led.set_high();
Timer::after_millis(500).await;
info!("low");
led.set_low();
Timer::after_millis(500).await;
}
}
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