2332d8cd23
* Add nRF91 as target in CI builds * Add example linker scripts for nrf91 * Make less nRF52 assumptions example config * Add llvm-tools-preview required for cargo objcopy example
69 lines
2.6 KiB
Rust
69 lines
2.6 KiB
Rust
#![no_std]
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#![no_main]
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#![macro_use]
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#![feature(type_alias_impl_trait)]
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use embassy_boot_nrf::FirmwareUpdater;
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use embassy_embedded_hal::adapter::BlockingAsync;
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use embassy_executor::Spawner;
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use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull};
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use embassy_nrf::nvmc::Nvmc;
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use embassy_nrf::wdt::{self, Watchdog};
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use panic_reset as _;
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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_nrf::init(Default::default());
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let mut button = Input::new(p.P0_11, Pull::Up);
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let mut led = Output::new(p.P0_13, Level::Low, OutputDrive::Standard);
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//let mut led = Output::new(p.P1_10, Level::Low, OutputDrive::Standard);
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//let mut button = Input::new(p.P1_02, Pull::Up);
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// nRF91 DK
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// let mut led = Output::new(p.P0_02, Level::Low, OutputDrive::Standard);
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// let mut button = Input::new(p.P0_06, Pull::Up);
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// The following code block illustrates how to obtain a watchdog that is configured
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// as per the existing watchdog. Ordinarily, we'd use the handle returned to "pet" the
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// watchdog periodically. If we don't, and we're not going to for this example, then
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// the watchdog will cause the device to reset as per its configured timeout in the bootloader.
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// This helps is avoid a situation where new firmware might be bad and block our executor.
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// If firmware is bad in this way then the bootloader will revert to any previous version.
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let wdt_config = wdt::Config::try_new(&p.WDT).unwrap();
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let (_wdt, [_wdt_handle]) = match Watchdog::try_new(p.WDT, wdt_config) {
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Ok(x) => x,
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Err(_) => {
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// Watchdog already active with the wrong number of handles, waiting for it to timeout...
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loop {
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cortex_m::asm::wfe();
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}
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}
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};
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let nvmc = Nvmc::new(p.NVMC);
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let mut nvmc = BlockingAsync::new(nvmc);
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let mut updater = FirmwareUpdater::default();
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loop {
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led.set_low();
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button.wait_for_any_edge().await;
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if button.is_low() {
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let mut offset = 0;
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for chunk in APP_B.chunks(4096) {
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let mut buf: [u8; 4096] = [0; 4096];
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buf[..chunk.len()].copy_from_slice(chunk);
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updater.write_firmware(offset, &buf, &mut nvmc, 4096).await.unwrap();
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offset += chunk.len();
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}
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let mut magic = [0; 4];
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updater.mark_updated(&mut nvmc, &mut magic).await.unwrap();
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led.set_high();
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cortex_m::peripheral::SCB::sys_reset();
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}
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}
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}
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