140 lines
4.2 KiB
Rust
140 lines
4.2 KiB
Rust
#![no_std]
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#![no_main]
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use defmt::{info, unwrap, warn};
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use embassy_executor::Spawner;
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use embassy_net::tcp::TcpSocket;
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use embassy_net::StackResources;
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use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull};
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use embassy_nrf::rng::Rng;
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use embassy_nrf::spim::{self, Spim};
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use embassy_nrf::{bind_interrupts, peripherals};
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use embassy_time::Delay;
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use embedded_hal_bus::spi::ExclusiveDevice;
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use embedded_io_async::Write;
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use static_cell::StaticCell;
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use {defmt_rtt as _, embassy_net_esp_hosted as hosted, panic_probe as _};
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const WIFI_NETWORK: &str = "EmbassyTest";
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const WIFI_PASSWORD: &str = "V8YxhKt5CdIAJFud";
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bind_interrupts!(struct Irqs {
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SPIM3 => spim::InterruptHandler<peripherals::SPI3>;
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RNG => embassy_nrf::rng::InterruptHandler<peripherals::RNG>;
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});
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#[embassy_executor::task]
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async fn wifi_task(
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runner: hosted::Runner<
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'static,
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ExclusiveDevice<Spim<'static, peripherals::SPI3>, Output<'static>, Delay>,
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Input<'static>,
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Output<'static>,
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>,
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) -> ! {
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runner.run().await
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}
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#[embassy_executor::task]
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async fn net_task(mut runner: embassy_net::Runner<'static, hosted::NetDriver<'static>>) -> ! {
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runner.run().await
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}
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#[embassy_executor::main]
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async fn main(spawner: Spawner) {
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info!("Hello World!");
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let p = embassy_nrf::init(Default::default());
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let miso = p.P0_28;
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let sck = p.P0_29;
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let mosi = p.P0_30;
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let cs = Output::new(p.P0_31, Level::High, OutputDrive::HighDrive);
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let handshake = Input::new(p.P1_01, Pull::Up);
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let ready = Input::new(p.P1_04, Pull::None);
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let reset = Output::new(p.P1_05, Level::Low, OutputDrive::Standard);
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let mut config = spim::Config::default();
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config.frequency = spim::Frequency::M32;
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config.mode = spim::MODE_2; // !!!
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let spi = spim::Spim::new(p.SPI3, Irqs, sck, miso, mosi, config);
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let spi = ExclusiveDevice::new(spi, cs, Delay);
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static ESP_STATE: StaticCell<embassy_net_esp_hosted::State> = StaticCell::new();
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let (device, mut control, runner) = embassy_net_esp_hosted::new(
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ESP_STATE.init(embassy_net_esp_hosted::State::new()),
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spi,
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handshake,
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ready,
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reset,
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)
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.await;
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unwrap!(spawner.spawn(wifi_task(runner)));
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unwrap!(control.init().await);
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unwrap!(control.connect(WIFI_NETWORK, WIFI_PASSWORD).await);
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let config = embassy_net::Config::dhcpv4(Default::default());
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// let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
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// address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
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// dns_servers: Vec::new(),
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// gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
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// });
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// Generate random seed
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let mut rng = Rng::new(p.RNG, Irqs);
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let mut seed = [0; 8];
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rng.blocking_fill_bytes(&mut seed);
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let seed = u64::from_le_bytes(seed);
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// Init network stack
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static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
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let (stack, runner) = embassy_net::new(device, config, RESOURCES.init(StackResources::new()), seed);
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unwrap!(spawner.spawn(net_task(runner)));
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// And now we can use it!
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let mut rx_buffer = [0; 4096];
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let mut tx_buffer = [0; 4096];
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let mut buf = [0; 4096];
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loop {
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let mut socket = TcpSocket::new(stack, &mut rx_buffer, &mut tx_buffer);
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socket.set_timeout(Some(embassy_time::Duration::from_secs(10)));
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info!("Listening on TCP:1234...");
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if let Err(e) = socket.accept(1234).await {
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warn!("accept error: {:?}", e);
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continue;
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}
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info!("Received connection from {:?}", socket.remote_endpoint());
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loop {
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let n = match socket.read(&mut buf).await {
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Ok(0) => {
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warn!("read EOF");
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break;
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}
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Ok(n) => n,
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Err(e) => {
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warn!("read error: {:?}", e);
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break;
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}
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};
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info!("rxd {:02x}", &buf[..n]);
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match socket.write_all(&buf[..n]).await {
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Ok(()) => {}
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Err(e) => {
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warn!("write error: {:?}", e);
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break;
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}
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};
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}
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}
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}
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