85 lines
2.2 KiB
Rust
85 lines
2.2 KiB
Rust
#![no_std]
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#![no_main]
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use defmt::{info, unwrap};
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use embassy_executor::Spawner;
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use embassy_stm32::bind_interrupts;
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use embassy_stm32::flash::{Flash, InterruptHandler};
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use embassy_stm32::gpio::{AnyPin, Level, Output, Pin, Speed};
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use embassy_time::Timer;
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use {defmt_rtt as _, panic_probe as _};
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bind_interrupts!(struct Irqs {
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FLASH => InterruptHandler;
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});
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#[embassy_executor::main]
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async fn main(spawner: Spawner) {
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let p = embassy_stm32::init(Default::default());
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info!("Hello Flash!");
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let mut f = Flash::new(p.FLASH, Irqs);
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// Led should blink uninterrupted during ~2sec erase operation
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spawner.spawn(blinky(p.PB7.degrade())).unwrap();
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// Test on bank 2 in order not to stall CPU.
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test_flash(&mut f, 1024 * 1024, 128 * 1024).await;
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}
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#[embassy_executor::task]
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async fn blinky(p: AnyPin) {
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let mut led = Output::new(p, Level::High, Speed::Low);
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loop {
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info!("high");
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led.set_high();
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Timer::after_millis(300).await;
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info!("low");
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led.set_low();
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Timer::after_millis(300).await;
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}
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}
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async fn test_flash<'a>(f: &mut Flash<'a>, offset: u32, size: u32) {
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info!("Testing offset: {=u32:#X}, size: {=u32:#X}", offset, size);
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info!("Reading...");
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let mut buf = [0u8; 32];
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unwrap!(f.blocking_read(offset, &mut buf));
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info!("Read: {=[u8]:x}", buf);
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info!("Erasing...");
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unwrap!(f.erase(offset, offset + size).await);
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info!("Reading...");
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let mut buf = [0u8; 32];
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unwrap!(f.blocking_read(offset, &mut buf));
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info!("Read after erase: {=[u8]:x}", buf);
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info!("Writing...");
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unwrap!(
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f.write(
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offset,
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&[
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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,
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29, 30, 31, 32
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]
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)
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.await
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);
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info!("Reading...");
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let mut buf = [0u8; 32];
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unwrap!(f.blocking_read(offset, &mut buf));
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info!("Read: {=[u8]:x}", buf);
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assert_eq!(
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&buf[..],
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&[
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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,
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30, 31, 32
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]
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);
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}
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