embassy/examples/boot/application/stm32f3/src/bin/a.rs

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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
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#[cfg(feature = "defmt-rtt")]
use defmt_rtt::*;
use embassy_boot_stm32::{AlignedBuffer, FirmwareUpdater};
use embassy_embedded_hal::adapter::BlockingAsync;
use embassy_executor::Spawner;
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use embassy_stm32::exti::ExtiInput;
use embassy_stm32::flash::{Flash, WRITE_SIZE};
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use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
use panic_reset as _;
static APP_B: &[u8] = include_bytes!("../../b.bin");
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_stm32::init(Default::default());
let flash = Flash::new(p.FLASH);
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let mut flash = BlockingAsync::new(flash);
let button = Input::new(p.PC13, Pull::Up);
let mut button = ExtiInput::new(button, p.EXTI13);
let mut led = Output::new(p.PA5, Level::Low, Speed::Low);
led.set_high();
let mut updater = FirmwareUpdater::default();
button.wait_for_falling_edge().await;
let mut offset = 0;
for chunk in APP_B.chunks(2048) {
let mut buf: [u8; 2048] = [0; 2048];
buf[..chunk.len()].copy_from_slice(chunk);
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updater.write_firmware(offset, &buf, &mut flash, 2048).await.unwrap();
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offset += chunk.len();
}
let mut magic = AlignedBuffer([0; WRITE_SIZE]);
updater.mark_updated(&mut flash, magic.as_mut()).await.unwrap();
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led.set_low();
cortex_m::peripheral::SCB::sys_reset();
}