#![no_std] #![no_main] #![feature(type_alias_impl_trait)] use defmt::{info, unwrap}; use embassy::executor::Spawner; use embassy::time::{Duration, Timer}; use embassy_stm32::flash::Flash; use embassy_stm32::Peripherals; use embassy_stm32::gpio::{AnyPin, Level, Speed, Output, Pin}; use embedded_storage_async::nor_flash::{AsyncReadNorFlash, AsyncNorFlash}; use {defmt_rtt as _, panic_probe as _}; #[embassy::task] async fn blinky(p: AnyPin) { let mut led = Output::new(p, Level::High, Speed::Low); loop { info!("high"); led.set_high(); Timer::after(Duration::from_millis(300)).await; info!("low"); led.set_low(); Timer::after(Duration::from_millis(300)).await; } } #[embassy::main] async fn main(spawner: Spawner, p: Peripherals) { info!("Hello Flash!"); let mut f = Flash::unlock(p.FLASH); spawner.spawn(blinky(p.PB7.degrade())).unwrap(); // Sector 5 // test_flash(&mut f, 128 * 1024, 128 * 1024).await; // Sectors 11..=16, across banks (128K, 16K, 16K, 16K, 16K, 64K) // test_flash(&mut f, (1024 - 128) * 1024, 256 * 1024).await; // Sectors 23, last in bank 2 test_flash(&mut f, (2048 - 128) * 1024, 128 * 1024).await; } async fn test_flash<'a>(f: &mut Flash<'a>, offset: u32, size: u32) { info!("Testing offset: {=u32:#X}, size: {=u32:#X}", offset, size); info!("Reading..."); let mut buf = [0u8; 32]; unwrap!(f.read(offset, &mut buf).await); info!("Read: {=[u8]:x}", buf); info!("Erasing..."); unwrap!(f.erase(offset, offset + size).await); info!("Reading..."); let mut buf = [0u8; 32]; unwrap!(f.read(offset, &mut buf).await); info!("Read after erase: {=[u8]:x}", buf); info!("Writing..."); unwrap!(f.write( offset, &[ 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 ] ).await); info!("Reading..."); let mut buf = [0u8; 32]; unwrap!(f.read(offset, &mut buf).await); 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 ] ); }