embassy/examples/boot/stm32l0/src/bin/a.rs
Ulf Lilleengen 484e0acc63 Add stm32 flash + bootloader support
* Add flash drivers for L0, L1, L4, WB and WL. Not tested for WB, but
should be similar to WL.
* Add embassy-boot-stm32 for bootloading on STM32.
* Add flash examples and bootloader examples
* Update stm32-data
2022-04-27 15:17:18 +02:00

49 lines
1.4 KiB
Rust

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use embassy::time::{Duration, Timer};
use embassy_boot_stm32::FirmwareUpdater;
use embassy_stm32::exti::ExtiInput;
use embassy_stm32::flash::Flash;
use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
use embassy_stm32::Peripherals;
use embassy_traits::adapter::BlockingAsync;
use panic_reset as _;
#[cfg(feature = "defmt-rtt")]
use defmt_rtt::*;
static APP_B: &[u8] = include_bytes!("../../b.bin");
#[embassy::main]
async fn main(_s: embassy::executor::Spawner, p: Peripherals) {
let flash = Flash::unlock(p.FLASH);
let mut flash = BlockingAsync::new(flash);
let button = Input::new(p.PB2, Pull::Up);
let mut button = ExtiInput::new(button, p.EXTI2);
let mut led = Output::new(p.PB5, 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(128) {
let mut buf: [u8; 128] = [0; 128];
buf[..chunk.len()].copy_from_slice(chunk);
updater
.write_firmware(offset, &buf, &mut flash, 128)
.await
.unwrap();
offset += chunk.len();
}
updater.mark_update(&mut flash).await.unwrap();
led.set_low();
Timer::after(Duration::from_secs(1)).await;
cortex_m::peripheral::SCB::sys_reset();
}