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#![no_std]
#![no_main]
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::Config;
use embassy_stm32::adc::{Adc, SampleTime};
use embassy_time::Timer;
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let mut config = 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), // SPI1 cksel defaults to pll1_q
divr: None,
});
config.rcc.pll2 = Some(Pll {
source: PllSource::HSI,
prediv: PllPreDiv::DIV4,
mul: PllMul::MUL50,
divp: Some(PllDiv::DIV8), // 100mhz
divq: None,
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.mux.adcsel = mux::Adcsel::PLL2_P;
}
let mut p = embassy_stm32::init(config);
info!("Hello World!");
let mut adc = Adc::new(p.ADC3);
adc.set_sample_time(SampleTime::CYCLES32_5);
let mut vrefint_channel = adc.enable_vrefint();
loop {
let vrefint = adc.blocking_read(&mut vrefint_channel);
info!("vrefint: {}", vrefint);
let measured = adc.blocking_read(&mut p.PC0);
info!("measured: {}", measured);
Timer::after_millis(500).await;
}
}
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