embassy/examples/stm32f4/src/bin/sdmmc.rs

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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt_rtt as _; // global logger
use panic_probe as _;
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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::U32Ext;
use embassy_stm32::{interrupt, Config, Peripherals};
fn config() -> Config {
let mut config = Config::default();
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config.rcc.sys_ck = Some(48.mhz().into());
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config
}
#[embassy::main(config = "config()")]
async fn main(_spawner: Spawner, p: Peripherals) -> ! {
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info!("Hello World!");
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let irq = interrupt::take!(SDIO);
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let mut sdmmc = Sdmmc::new(
p.SDIO,
(p.PC12, p.PD2, p.PC8, p.PC9, p.PC10, p.PC11),
irq,
Default::default(),
p.DMA2_CH3,
);
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// Should print 400kHz for initialization
info!("Configured clock: {}", sdmmc.clock().0);
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unwrap!(sdmmc.init_card(25.mhz()).await);
let card = unwrap!(sdmmc.card());
info!("Card: {:#?}", Debug2Format(card));
loop {}
}