122 lines
3.2 KiB
Rust
122 lines
3.2 KiB
Rust
#![no_std]
|
|
#![no_main]
|
|
#![feature(type_alias_impl_trait)]
|
|
|
|
use defmt::*;
|
|
use embassy::executor::Spawner;
|
|
use embassy::time::{Duration, Timer};
|
|
use embassy::util::Forever;
|
|
use embassy_net::tcp::TcpSocket;
|
|
use embassy_net::{Ipv4Address, Stack, StackResources};
|
|
use embassy_stm32::eth::generic_smi::GenericSMI;
|
|
use embassy_stm32::eth::{Ethernet, State};
|
|
use embassy_stm32::peripherals::ETH;
|
|
use embassy_stm32::rng::Rng;
|
|
use embassy_stm32::time::U32Ext;
|
|
use embassy_stm32::{interrupt, Config, Peripherals};
|
|
use embedded_io::asynch::Write;
|
|
use rand_core::RngCore;
|
|
use {defmt_rtt as _, panic_probe as _};
|
|
|
|
macro_rules! forever {
|
|
($val:expr) => {{
|
|
type T = impl Sized;
|
|
static FOREVER: Forever<T> = Forever::new();
|
|
FOREVER.put_with(move || $val)
|
|
}};
|
|
}
|
|
|
|
type Device = Ethernet<'static, ETH, GenericSMI, 4, 4>;
|
|
|
|
#[embassy::task]
|
|
async fn net_task(stack: &'static Stack<Device>) -> ! {
|
|
stack.run().await
|
|
}
|
|
|
|
fn config() -> Config {
|
|
let mut config = Config::default();
|
|
config.rcc.sys_ck = Some(200.mhz().into());
|
|
config
|
|
}
|
|
|
|
#[embassy::main(config = "config()")]
|
|
async fn main(spawner: Spawner, p: Peripherals) -> ! {
|
|
info!("Hello World!");
|
|
|
|
// Generate random seed.
|
|
let mut rng = Rng::new(p.RNG);
|
|
let mut seed = [0; 8];
|
|
rng.fill_bytes(&mut seed);
|
|
let seed = u64::from_le_bytes(seed);
|
|
|
|
let eth_int = interrupt::take!(ETH);
|
|
let mac_addr = [0x00, 0x00, 0xDE, 0xAD, 0xBE, 0xEF];
|
|
|
|
let device = unsafe {
|
|
Ethernet::new(
|
|
forever!(State::new()),
|
|
p.ETH,
|
|
eth_int,
|
|
p.PA1,
|
|
p.PA2,
|
|
p.PC1,
|
|
p.PA7,
|
|
p.PC4,
|
|
p.PC5,
|
|
p.PG13,
|
|
p.PB13,
|
|
p.PG11,
|
|
GenericSMI,
|
|
mac_addr,
|
|
0,
|
|
)
|
|
};
|
|
|
|
let config = embassy_net::ConfigStrategy::Dhcp;
|
|
//let config = embassy_net::ConfigStrategy::Static(embassy_net::Config {
|
|
// address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
|
|
// dns_servers: Vec::new(),
|
|
// gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
|
|
//});
|
|
|
|
// Init network stack
|
|
let stack = &*forever!(Stack::new(
|
|
device,
|
|
config,
|
|
forever!(StackResources::<1, 2, 8>::new()),
|
|
seed
|
|
));
|
|
|
|
// Launch network task
|
|
unwrap!(spawner.spawn(net_task(&stack)));
|
|
|
|
info!("Network task initialized");
|
|
|
|
// Then we can use it!
|
|
let mut rx_buffer = [0; 1024];
|
|
let mut tx_buffer = [0; 1024];
|
|
|
|
loop {
|
|
let mut socket = TcpSocket::new(&stack, &mut rx_buffer, &mut tx_buffer);
|
|
|
|
socket.set_timeout(Some(embassy_net::SmolDuration::from_secs(10)));
|
|
|
|
let remote_endpoint = (Ipv4Address::new(10, 42, 0, 1), 8000);
|
|
info!("connecting...");
|
|
let r = socket.connect(remote_endpoint).await;
|
|
if let Err(e) = r {
|
|
info!("connect error: {:?}", e);
|
|
continue;
|
|
}
|
|
info!("connected!");
|
|
loop {
|
|
let r = socket.write_all(b"Hello\n").await;
|
|
if let Err(e) = r {
|
|
info!("write error: {:?}", e);
|
|
return;
|
|
}
|
|
Timer::after(Duration::from_secs(1)).await;
|
|
}
|
|
}
|
|
}
|