embassy/examples/rp/src/bin/wifi_blinky.rs

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]

use cyw43_pio::PioSpi;
use defmt::*;
use embassy_executor::Spawner;
use embassy_rp::gpio::{Level, Output};
use embassy_rp::peripherals::{DMA_CH0, PIN_23, PIN_25, PIO0};
use embassy_rp::pio::Pio;
use embassy_time::{Duration, Timer};
use static_cell::make_static;
use {defmt_rtt as _, panic_probe as _};

#[embassy_executor::task]
async fn wifi_task(
    runner: cyw43::Runner<'static, Output<'static, PIN_23>, PioSpi<'static, PIN_25, PIO0, 0, DMA_CH0>>,
) -> ! {
    runner.run().await
}

#[embassy_executor::main]
async fn main(spawner: Spawner) {
    let p = embassy_rp::init(Default::default());
    let fw = include_bytes!("../../../../cyw43-firmware/43439A0.bin");
    let clm = include_bytes!("../../../../cyw43-firmware/43439A0_clm.bin");

    // To make flashing faster for development, you may want to flash the firmwares independently
    // at hardcoded addresses, instead of baking them into the program with `include_bytes!`:
    //     probe-rs download 43439A0.bin --format bin --chip RP2040 --base-address 0x10100000
    //     probe-rs download 43439A0_clm.bin --format bin --chip RP2040 --base-address 0x10140000
    //let fw = unsafe { core::slice::from_raw_parts(0x10100000 as *const u8, 224190) };
    //let clm = unsafe { core::slice::from_raw_parts(0x10140000 as *const u8, 4752) };

    let pwr = Output::new(p.PIN_23, Level::Low);
    let cs = Output::new(p.PIN_25, Level::High);
    let mut pio = Pio::new(p.PIO0);
    let spi = PioSpi::new(&mut pio.common, pio.sm0, pio.irq0, cs, p.PIN_24, p.PIN_29, p.DMA_CH0);

    let state = make_static!(cyw43::State::new());
    let (_net_device, mut control, runner) = cyw43::new(state, pwr, spi, fw).await;
    unwrap!(spawner.spawn(wifi_task(runner)));

    control.init(clm).await;
    control
        .set_power_management(cyw43::PowerManagementMode::PowerSave)
        .await;

    let delay = Duration::from_secs(1);
    loop {
        info!("led on!");
        control.gpio_set(0, true).await;
        Timer::after(delay).await;

        info!("led off!");
        control.gpio_set(0, false).await;
        Timer::after(delay).await;
    }
}