embassy/examples/stm32f3/src/bin/flash.rs

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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::{info, unwrap};
use embassy_executor::Spawner;
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use embassy_stm32::flash::Flash;
use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
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use {defmt_rtt as _, panic_probe as _};
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#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_stm32::init(Default::default());
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info!("Hello Flash!");
const ADDR: u32 = 0x26000;
let mut f = Flash::new(p.FLASH);
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info!("Reading...");
let mut buf = [0u8; 8];
unwrap!(f.read(ADDR, &mut buf));
info!("Read: {=[u8]:x}", buf);
info!("Erasing...");
unwrap!(f.erase(ADDR, ADDR + 2048));
info!("Reading...");
let mut buf = [0u8; 8];
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]));
info!("Reading...");
let mut buf = [0u8; 8];
unwrap!(f.read(ADDR, &mut buf));
info!("Read: {=[u8]:x}", buf);
assert_eq!(&buf[..], &[1, 2, 3, 4, 5, 6, 7, 8]);
}