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

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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
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use defmt::*;
use embassy_executor::Spawner;
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use embassy_stm32::adc::{Adc, SampleTime};
use embassy_stm32::rcc::AdcClockSource;
use embassy_stm32::time::mhz;
use embassy_stm32::Config;
use embassy_time::{Delay, Duration, Timer};
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use {defmt_rtt as _, panic_probe as _};
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#[embassy_executor::main]
async fn main(_spawner: Spawner) {
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let mut config = Config::default();
config.rcc.sys_ck = Some(mhz(400));
config.rcc.hclk = Some(mhz(200));
config.rcc.per_ck = Some(mhz(64));
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config.rcc.adc_clock_source = AdcClockSource::PerCk;
let mut p = embassy_stm32::init(config);
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info!("Hello World!");
let mut adc = Adc::new(p.ADC3, &mut Delay);
adc.set_sample_time(SampleTime::Cycles32_5);
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let mut vrefint_channel = adc.enable_vrefint();
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loop {
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let vrefint = adc.read_internal(&mut vrefint_channel);
info!("vrefint: {}", vrefint);
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let measured = adc.read(&mut p.PC0);
info!("measured: {}", measured);
Timer::after(Duration::from_millis(500)).await;
}
}