63 lines
1.6 KiB
Rust
63 lines
1.6 KiB
Rust
#![no_std]
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#![no_main]
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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, Hertz};
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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.hse = Some(Hse {
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freq: Hertz(8_000_000),
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mode: HseMode::Bypass,
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});
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config.rcc.pll_src = PllSource::HSE;
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config.rcc.pll = Some(Pll {
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prediv: PllPreDiv::DIV4,
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mul: PllMul::MUL216,
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divp: Some(PllPDiv::DIV2), // 8mhz / 4 * 216 / 2 = 216Mhz
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divq: Some(PllQDiv::DIV9), // 8mhz / 4 * 216 / 9 = 48Mhz
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divr: None,
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});
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config.rcc.ahb_pre = AHBPrescaler::DIV1;
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config.rcc.apb1_pre = APBPrescaler::DIV4;
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config.rcc.apb2_pre = APBPrescaler::DIV2;
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config.rcc.sys = Sysclk::PLL1_P;
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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.DMA2_CH3,
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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_sd_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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}
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