embassy/examples/stm32f7/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;
use embassy_stm32::sdmmc::Sdmmc;
use embassy_stm32::time::U32Ext;
use embassy_stm32::{interrupt, Config, Peripherals};
fn config() -> Config {
let mut config = Config::default();
config.rcc.sys_ck = Some(200.mhz().into());
config
}
#[embassy::main(config = "config()")]
async fn main(_spawner: Spawner, p: Peripherals) -> ! {
info!("Hello World!");
let irq = interrupt::take!(SDMMC1);
let mut sdmmc = Sdmmc::new(
p.SDMMC1,
(p.PC12, p.PD2, p.PC8, p.PC9, p.PC10, p.PC11),
irq,
Default::default(),
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p.DMA2_CH3,
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);
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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 {}
}