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//! This example uses the RP Pico W board Wifi chip (cyw43).
//! Scans Wifi for ssid names.
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#![feature(async_fn_in_trait)]
#![allow(stable_features, unknown_lints, async_fn_in_trait)]
use core::str;
use cyw43_pio::PioSpi;
use defmt::*;
use embassy_executor::Spawner;
use embassy_net::Stack;
use embassy_rp::bind_interrupts;
use embassy_rp::gpio::{Level, Output};
use embassy_rp::peripherals::{DMA_CH0, PIN_23, PIN_25, PIO0};
use embassy_rp::pio::{InterruptHandler, Pio};
use static_cell::make_static;
use {defmt_rtt as _, panic_probe as _};
bind_interrupts!(struct Irqs {
PIO0_IRQ_0 => InterruptHandler<PIO0>;
});
#[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::task]
async fn net_task(stack: &'static Stack<cyw43::NetDriver<'static>>) -> ! {
stack.run().await
}
#[embassy_executor::main]
async fn main(spawner: Spawner) {
info!("Hello World!");
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, 230321) };
//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, Irqs);
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 mut scanner = control.scan().await;
while let Some(bss) = scanner.next().await {
if let Ok(ssid_str) = str::from_utf8(&bss.ssid) {
info!("scanned {} == {:x}", ssid_str, bss.bssid);
}
}
}
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