embassy/examples/stm32l4/src/bin/adc.rs

#![no_std]
#![no_main]
#![allow(incomplete_features)]
#![feature(trait_alias)]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#![feature(type_alias_impl_trait)]

#[path = "../example_common.rs"]
mod example_common;

use defmt::panic;
use embassy::executor::Spawner;
use embassy::time::Delay;
use embassy_stm32::adc::{Adc, Resolution};
use embassy_stm32::{pac, Peripherals};
use example_common::*;

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

    unsafe {
        pac::RCC.ccipr().modify(|w| {
            w.set_adcsel(0b11);
        });
        pac::DBGMCU.cr().modify(|w| {
            w.set_dbg_sleep(true);
            w.set_dbg_standby(true);
            w.set_dbg_stop(true);
        });
        pac::RCC.ahb2enr().modify(|w| w.set_adcen(true));
    }

    let mut adc = Adc::new(p.ADC1, &mut Delay);
    //adc.enable_vref();
    adc.set_resolution(Resolution::EightBit);
    let mut channel = p.PC0;

    loop {
        let v = adc.read(&mut channel);
        info!("--> {}", v);
    }
}