3 releases
0.1.3 | Feb 12, 2023 |
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0.1.2 | Jan 25, 2023 |
0.1.1 |
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0.1.0 | Dec 15, 2021 |
#1634 in Embedded development
34KB
947 lines
sdmmc
A sdmmc implementation mainly focusing on embedded system with
no_std
andasync
support
Using this crate
Assuming you already have SPI
struct which implements sdmmc::spi::Transfer
let mut bus = sdmmc::bus::linux::spi(&args.spi, args.cs).map_err(|e| format!("{:?}", e))?;
let card = bus.init(Delay).await.map_err(|e| format!("{:?}", e))?;
debug!("Card: {:?}", card);
let mut sd = SD::init(bus, card).await.map_err(|e| format!("{:?}", e))?;
let size = Size::from_bytes(sd.num_blocks() as u64 * sd.block_size() as u64);
debug!("Size {}", size);
let options = SpidevOptions { max_speed_hz: Some(2_000_000), ..Default::default() };
sd.bus(|bus| bus.spi(|spi| spi.0.configure(&options))).unwrap();
let mut buffer = [0u8; 512];
sd.read(0, slice::from_mut(&mut buffer).iter_mut()).await.map_err(|e| format!("{:?}", e))?;
let mbr = MasterBootRecord::from_bytes(&buffer).map_err(|e| format!("{:?}", e))?;
for partition in mbr.partition_table_entries().iter() {
println!("{:?}", partition);
}
Ok(())
Features
-
async
Enable async support
-
async-trait
Use async-trait, otherwise nightly unstable
async_fn_in_trait
feature is enabled -
embedded-hal-async
Enable embedded-hal-async support
-
std
Use std library
-
linux-spi
Enable linux SPI support
-
log-max-level-off
Disable logging at compile time
Dependencies
~0.4–1.2MB
~25K SLoC