58 lines
1.6 KiB
Rust
58 lines
1.6 KiB
Rust
#![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 = 0; // This is the offset into bank 2, the absolute address is 0x8_0000
|
|
|
|
// wait a bit before accessing the flash
|
|
Timer::after(Duration::from_millis(300)).await;
|
|
|
|
let mut f = Flash::new(p.FLASH).into_regions().bank2_region;
|
|
|
|
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 + 128 * 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
|
|
]
|
|
);
|
|
}
|