49 lines
1.6 KiB
Rust
49 lines
1.6 KiB
Rust
#![no_std]
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#![no_main]
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use core::cell::RefCell;
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#[cfg(feature = "defmt")]
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use defmt_rtt::*;
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use embassy_boot_stm32::{AlignedBuffer, BlockingFirmwareUpdater, FirmwareUpdaterConfig};
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use embassy_executor::Spawner;
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use embassy_stm32::exti::ExtiInput;
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use embassy_stm32::flash::{Flash, WRITE_SIZE};
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use embassy_stm32::gpio::{Level, Output, Pull, Speed};
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use embassy_sync::blocking_mutex::Mutex;
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use embedded_storage::nor_flash::NorFlash;
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use panic_reset as _;
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#[cfg(feature = "skip-include")]
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static APP_B: &[u8] = &[0, 1, 2, 3];
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#[cfg(not(feature = "skip-include"))]
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static APP_B: &[u8] = include_bytes!("../../b.bin");
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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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let flash = Flash::new_blocking(p.FLASH);
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let flash = Mutex::new(RefCell::new(flash));
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let mut button = ExtiInput::new(p.PC13, p.EXTI13, Pull::Down);
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let mut led = Output::new(p.PB7, Level::Low, Speed::Low);
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led.set_high();
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let config = FirmwareUpdaterConfig::from_linkerfile_blocking(&flash, &flash);
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let mut magic = AlignedBuffer([0; WRITE_SIZE]);
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let mut updater = BlockingFirmwareUpdater::new(config, &mut magic.0);
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let writer = updater.prepare_update().unwrap();
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button.wait_for_rising_edge().await;
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let mut offset = 0;
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let mut buf = AlignedBuffer([0; 4096]);
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for chunk in APP_B.chunks(4096) {
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buf.as_mut()[..chunk.len()].copy_from_slice(chunk);
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writer.write(offset, buf.as_ref()).unwrap();
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offset += chunk.len() as u32;
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}
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updater.mark_updated().unwrap();
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led.set_low();
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cortex_m::peripheral::SCB::sys_reset();
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}
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