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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::{info, unwrap};
use embassy_executor::Spawner;
use embassy_stm32::flash::Flash;
use embassy_time::{Duration, Timer};
use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_stm32::init(Default::default());
info!("Hello Flash!");
const ADDR: u32 = 0x8_0000;
// wait a bit before accessing the flash
Timer::after(Duration::from_millis(300)).await;
let mut f = Flash::unlock(p.FLASH);
info!("Reading...");
let mut buf = [0u8; 32];
unwrap!(f.read(ADDR, &mut buf));
info!("Read: {=[u8]:x}", buf);
info!("Erasing...");
unwrap!(f.erase(ADDR, ADDR + 256 * 1024));
info!("Reading...");
let mut buf = [0u8; 32];
unwrap!(f.read(ADDR, &mut buf));
info!("Read after erase: {=[u8]:x}", buf);
info!("Writing...");
unwrap!(f.write(
ADDR,
&[
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 31, 32
]
));
info!("Reading...");
let mut buf = [0u8; 32];
unwrap!(f.read(ADDR, &mut buf));
info!("Read: {=[u8]:x}", buf);
assert_eq!(
&buf[..],
&[
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 31, 32
]
);
}
|
