embassy/examples/stm32f4/src/bin/adc.rs

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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
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use cortex_m::prelude::_embedded_hal_blocking_delay_DelayUs;
use defmt::*;
use embassy_executor::Spawner;
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use embassy_stm32::adc::{Adc, Temperature, VrefInt};
use embassy_time::{Delay, Duration, Timer};
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use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_stm32::init(Default::default());
info!("Hello World!");
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let mut delay = Delay;
let mut adc = Adc::new(p.ADC1, &mut delay);
let mut pin = p.PC1;
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let mut vrefint = adc.enable_vrefint();
let mut temp = adc.enable_temperature();
// Startup delay can be combined to the maximum of either
delay.delay_us(Temperature::start_time_us().max(VrefInt::start_time_us()));
loop {
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// Read pin
let v = adc.read(&mut pin);
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info!("PC1: {} ({} mV)", v, adc.to_millivolts(v));
// Read internal temperature
let v = adc.read_internal(&mut temp);
let celcius = Temperature::to_celcius(adc.to_millivolts(v));
info!("Internal temp: {} ({} C)", v, celcius);
// Read internal voltage reference
let v = adc.read_internal(&mut vrefint);
info!("VrefInt: {} ({} mV)", v, adc.to_millivolts(v));
Timer::after(Duration::from_millis(100)).await;
}
}