55 lines
1.6 KiB
Rust
55 lines
1.6 KiB
Rust
#![no_std]
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#![no_main]
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use core::mem::MaybeUninit;
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use defmt::*;
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use embassy_executor::Spawner;
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use embassy_stm32::gpio::{Level, Output, Speed};
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use embassy_stm32::SharedData;
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use embassy_time::Timer;
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use {defmt_rtt as _, panic_probe as _};
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#[link_section = ".ram_d3.shared_data"]
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static SHARED_DATA: MaybeUninit<SharedData> = MaybeUninit::uninit();
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#[embassy_executor::main]
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async fn main(_spawner: Spawner) {
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let mut config = embassy_stm32::Config::default();
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{
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use embassy_stm32::rcc::*;
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config.rcc.hsi = Some(HSIPrescaler::DIV1);
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config.rcc.csi = true;
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config.rcc.pll1 = Some(Pll {
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source: PllSource::HSI,
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prediv: PllPreDiv::DIV4,
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mul: PllMul::MUL50,
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divp: Some(PllDiv::DIV2),
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divq: Some(PllDiv::DIV8), // 100mhz
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divr: None,
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});
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config.rcc.sys = Sysclk::PLL1_P; // 400 Mhz
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config.rcc.ahb_pre = AHBPrescaler::DIV2; // 200 Mhz
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config.rcc.apb1_pre = APBPrescaler::DIV2; // 100 Mhz
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config.rcc.apb2_pre = APBPrescaler::DIV2; // 100 Mhz
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config.rcc.apb3_pre = APBPrescaler::DIV2; // 100 Mhz
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config.rcc.apb4_pre = APBPrescaler::DIV2; // 100 Mhz
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config.rcc.voltage_scale = VoltageScale::Scale1;
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config.rcc.supply_config = SupplyConfig::DirectSMPS;
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}
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let p = embassy_stm32::init_primary(config, &SHARED_DATA);
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info!("Hello World!");
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let mut led = Output::new(p.PB14, Level::High, Speed::Low);
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loop {
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info!("high");
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led.set_high();
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Timer::after_millis(500).await;
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info!("low");
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led.set_low();
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Timer::after_millis(500).await;
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}
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}
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