#![no_std]
#![no_main]
use panic_halt as _;
use rp2040_hal as hal;
use hal::pac;
use embedded_hal::digital::v2::OutputPin;
use embedded_hal::watchdog::{Watchdog, WatchdogEnable};
use fugit::ExtU32;
use rp2040_hal::clocks::Clock;
#[link_section = ".boot2"]
#[used]
pub static BOOT2: [u8; 256] = rp2040_boot2::BOOT_LOADER_GENERIC_03H;
const XTAL_FREQ_HZ: u32 = 12_000_000u32;
#[rp2040_hal::entry]
fn main() -> ! {
let mut pac = pac::Peripherals::take().unwrap();
let core = pac::CorePeripherals::take().unwrap();
let mut watchdog = hal::Watchdog::new(pac.WATCHDOG);
let clocks = hal::clocks::init_clocks_and_plls(
XTAL_FREQ_HZ,
pac.XOSC,
pac.CLOCKS,
pac.PLL_SYS,
pac.PLL_USB,
&mut pac.RESETS,
&mut watchdog,
)
.ok()
.unwrap();
let mut delay = cortex_m::delay::Delay::new(core.SYST, clocks.system_clock.freq().to_Hz());
let sio = hal::Sio::new(pac.SIO);
let pins = hal::gpio::Pins::new(
pac.IO_BANK0,
pac.PADS_BANK0,
sio.gpio_bank0,
&mut pac.RESETS,
);
let mut led_pin = pins.gpio25.into_push_pull_output();
led_pin.set_high().unwrap();
delay.delay_ms(2000);
watchdog.start(1_050.millis());
for _ in 1..=5 {
led_pin.set_low().unwrap();
delay.delay_ms(500);
led_pin.set_high().unwrap();
delay.delay_ms(500);
watchdog.feed();
}
loop {
led_pin.set_low().unwrap();
delay.delay_ms(100);
led_pin.set_high().unwrap();
delay.delay_ms(100);
}
}