embassy/examples/stm32g4/src/bin/adc.rs
2023-11-13 00:52:01 +01:00

42 lines
1.1 KiB
Rust

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::adc::{Adc, SampleTime};
use embassy_stm32::rcc::{AdcClockSource, ClockSrc, Pll, PllM, PllN, PllR, PllSource};
use embassy_stm32::Config;
use embassy_time::{Delay, Timer};
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let mut config = Config::default();
config.rcc.pll = Some(Pll {
source: PllSource::HSI,
prediv_m: PllM::DIV4,
mul_n: PllN::MUL85,
div_p: None,
div_q: None,
// Main system clock at 170 MHz
div_r: Some(PllR::DIV2),
});
config.rcc.adc12_clock_source = AdcClockSource::SYS;
config.rcc.mux = ClockSrc::PLL;
let mut p = embassy_stm32::init(config);
info!("Hello World!");
let mut adc = Adc::new(p.ADC2, &mut Delay);
adc.set_sample_time(SampleTime::Cycles32_5);
loop {
let measured = adc.read(&mut p.PA7);
info!("measured: {}", measured);
Timer::after_millis(500).await;
}
}