65 lines
1.8 KiB
Rust
65 lines
1.8 KiB
Rust
#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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use defmt::*;
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use embassy_executor::Spawner;
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use embassy_stm32::sdmmc::Sdmmc;
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use embassy_stm32::time::mhz;
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use embassy_stm32::{bind_interrupts, peripherals, sdmmc, Config};
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use {defmt_rtt as _, panic_probe as _};
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bind_interrupts!(struct Irqs {
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SDMMC1 => sdmmc::InterruptHandler<peripherals::SDMMC1>;
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});
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#[embassy_executor::main]
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async fn main(_spawner: Spawner) -> ! {
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let mut config = Config::default();
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{
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use embassy_stm32::rcc::*;
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config.rcc.hsi = Some(Hsi::Mhz64);
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config.rcc.csi = true;
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config.rcc.pll_src = PllSource::Hsi;
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config.rcc.pll1 = Some(Pll {
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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::DIV4), // default clock chosen by SDMMCSEL. 200 Mhz
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divr: None,
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});
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config.rcc.sys = Sysclk::Pll1P; // 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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}
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let p = embassy_stm32::init(config);
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info!("Hello World!");
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let mut sdmmc = Sdmmc::new_4bit(
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p.SDMMC1,
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Irqs,
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p.PC12,
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p.PD2,
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p.PC8,
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p.PC9,
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p.PC10,
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p.PC11,
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Default::default(),
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);
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// Should print 400kHz for initialization
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info!("Configured clock: {}", sdmmc.clock().0);
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unwrap!(sdmmc.init_card(mhz(25)).await);
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let card = unwrap!(sdmmc.card());
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info!("Card: {:#?}", Debug2Format(card));
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loop {}
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}
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