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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#[cfg(feature = "defmt-rtt")]
use defmt_rtt::*;
use embassy_boot_stm32::{AlignedBuffer, FirmwareUpdater};
use embassy_executor::Spawner;
use embassy_stm32::exti::ExtiInput;
use embassy_stm32::flash::{Flash, WRITE_SIZE};
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 mut flash = Flash::unlock(p.FLASH);
let button = Input::new(p.PC13, Pull::Down);
let mut button = ExtiInput::new(button, p.EXTI13);
let mut led = Output::new(p.PB7, Level::Low, Speed::Low);
led.set_high();
let mut updater = FirmwareUpdater::default();
let mut writer = updater.prepare_update_blocking(&mut flash).unwrap();
button.wait_for_rising_edge().await;
let mut offset = 0;
let mut buf = AlignedBuffer([0; 4096]);
for chunk in APP_B.chunks(4096) {
buf.as_mut()[..chunk.len()].copy_from_slice(chunk);
writer
.write_block_blocking(offset, buf.as_ref(), &mut flash, chunk.len())
.unwrap();
offset += chunk.len();
}
let mut magic = AlignedBuffer([0; WRITE_SIZE]);
updater.mark_updated_blocking(&mut flash, magic.as_mut()).unwrap();
led.set_low();
cortex_m::peripheral::SCB::sys_reset();
}
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