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#![no_std]
#![no_main]
use core::mem::MaybeUninit;
use defmt::{info, unwrap};
use embassy_executor::Spawner;
use embassy_stm32::SharedData;
use embassy_stm32::flash::Flash;
use {defmt_rtt as _, panic_probe as _};
#[unsafe(link_section = ".shared_data")]
static SHARED_DATA: MaybeUninit<SharedData> = MaybeUninit::uninit();
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_stm32::init_primary(Default::default(), &SHARED_DATA);
info!("Hello Flash!");
const ADDR: u32 = 0x36000;
let mut f = Flash::new_blocking(p.FLASH).into_blocking_regions().bank1_region;
info!("Reading...");
let mut buf = [0u8; 8];
unwrap!(f.blocking_read(ADDR, &mut buf));
info!("Read: {=[u8]:x}", buf);
info!("Erasing...");
unwrap!(f.blocking_erase(ADDR, ADDR + 2048));
info!("Reading...");
let mut buf = [0u8; 8];
unwrap!(f.blocking_read(ADDR, &mut buf));
info!("Read: {=[u8]:x}", buf);
info!("Writing...");
unwrap!(f.blocking_write(ADDR, &[1, 2, 3, 4, 5, 6, 7, 8]));
info!("Reading...");
let mut buf = [0u8; 8];
unwrap!(f.blocking_read(ADDR, &mut buf));
info!("Read: {=[u8]:x}", buf);
assert_eq!(&buf[..], &[1, 2, 3, 4, 5, 6, 7, 8]);
}
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