#![no_std]
#![no_main]
use cortex_m::delay::Delay;
use hal::clocks::Clock;
use hal::gpio::Pins;
use hal::multicore::{Multicore, Stack};
use hal::sio::Sio;
use panic_halt as _;
use rp2040_hal as hal;
use hal::pac;
use embedded_hal::digital::v2::ToggleableOutputPin;
#[link_section = ".boot2"]
#[used]
pub static BOOT2: [u8; 256] = rp2040_boot2::BOOT_LOADER_GENERIC_03H;
const XTAL_FREQ_HZ: u32 = 12_000_000u32;
const CORE0_FREQ: u32 = 3;
const CORE1_FREQ: u32 = 4;
const CORE0_DELAY: u32 = 1_000_000 / CORE0_FREQ;
const CORE1_DELAY: u32 = 1_000_000 / CORE1_FREQ;
static mut CORE1_STACK: Stack<4096> = Stack::new();
#[rp2040_hal::entry]
fn main() -> ! {
let mut pac = pac::Peripherals::take().unwrap();
let core = pac::CorePeripherals::take().unwrap();
let mut watchdog = hal::watchdog::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 sio = Sio::new(pac.SIO);
let pins = Pins::new(
pac.IO_BANK0,
pac.PADS_BANK0,
sio.gpio_bank0,
&mut pac.RESETS,
);
let mut led1 = pins.gpio2.into_push_pull_output();
let mut led2 = pins.gpio3.into_push_pull_output();
let sys_freq = clocks.system_clock.freq().to_Hz();
let mut delay = Delay::new(core.SYST, sys_freq);
let mut mc = Multicore::new(&mut pac.PSM, &mut pac.PPB, &mut sio.fifo);
let cores = mc.cores();
let core1 = &mut cores[1];
core1
.spawn(unsafe { &mut CORE1_STACK.mem }, move || {
let core = unsafe { pac::CorePeripherals::steal() };
let mut delay = Delay::new(core.SYST, sys_freq);
loop {
led2.toggle().unwrap();
delay.delay_us(CORE1_DELAY)
}
})
.unwrap();
loop {
led1.toggle().unwrap();
delay.delay_us(CORE0_DELAY)
}
}