135 lines
3.7 KiB
Rust
135 lines
3.7 KiB
Rust
#![no_std]
|
|
#![no_main]
|
|
#![feature(type_alias_impl_trait)]
|
|
|
|
use defmt::*;
|
|
use embassy_executor::Spawner;
|
|
use embassy_net::tcp::TcpSocket;
|
|
use embassy_net::{Ipv4Address, Stack, StackResources};
|
|
use embassy_stm32::eth::generic_smi::GenericSMI;
|
|
use embassy_stm32::eth::{Ethernet, PacketQueue};
|
|
use embassy_stm32::peripherals::ETH;
|
|
use embassy_stm32::rng::Rng;
|
|
use embassy_stm32::time::Hertz;
|
|
use embassy_stm32::{bind_interrupts, eth, peripherals, rng, Config};
|
|
use embassy_time::Timer;
|
|
use embedded_io_async::Write;
|
|
use static_cell::make_static;
|
|
use {defmt_rtt as _, panic_probe as _};
|
|
|
|
bind_interrupts!(struct Irqs {
|
|
ETH => eth::InterruptHandler;
|
|
HASH_RNG => rng::InterruptHandler<peripherals::RNG>;
|
|
});
|
|
|
|
type Device = Ethernet<'static, ETH, GenericSMI>;
|
|
|
|
#[embassy_executor::task]
|
|
async fn net_task(stack: &'static Stack<Device>) -> ! {
|
|
stack.run().await
|
|
}
|
|
|
|
#[embassy_executor::main]
|
|
async fn main(spawner: Spawner) -> ! {
|
|
let mut config = Config::default();
|
|
{
|
|
use embassy_stm32::rcc::*;
|
|
config.rcc.hse = Some(Hse {
|
|
freq: Hertz(8_000_000),
|
|
mode: HseMode::Bypass,
|
|
});
|
|
config.rcc.pll_src = PllSource::HSE;
|
|
config.rcc.pll = Some(Pll {
|
|
prediv: PllPreDiv::DIV4,
|
|
mul: PllMul::MUL180,
|
|
divp: Some(PllPDiv::DIV2), // 8mhz / 4 * 180 / 2 = 180Mhz.
|
|
divq: None,
|
|
divr: None,
|
|
});
|
|
config.rcc.ahb_pre = AHBPrescaler::DIV1;
|
|
config.rcc.apb1_pre = APBPrescaler::DIV4;
|
|
config.rcc.apb2_pre = APBPrescaler::DIV2;
|
|
config.rcc.sys = Sysclk::PLL1_P;
|
|
}
|
|
let p = embassy_stm32::init(config);
|
|
|
|
info!("Hello World!");
|
|
|
|
// Generate random seed.
|
|
let mut rng = Rng::new(p.RNG, Irqs);
|
|
let mut seed = [0; 8];
|
|
let _ = rng.async_fill_bytes(&mut seed).await;
|
|
let seed = u64::from_le_bytes(seed);
|
|
|
|
let mac_addr = [0x00, 0x00, 0xDE, 0xAD, 0xBE, 0xEF];
|
|
|
|
let device = Ethernet::new(
|
|
make_static!(PacketQueue::<16, 16>::new()),
|
|
p.ETH,
|
|
Irqs,
|
|
p.PA1,
|
|
p.PA2,
|
|
p.PC1,
|
|
p.PA7,
|
|
p.PC4,
|
|
p.PC5,
|
|
p.PG13,
|
|
p.PB13,
|
|
p.PG11,
|
|
GenericSMI::new(0),
|
|
mac_addr,
|
|
);
|
|
|
|
let config = embassy_net::Config::dhcpv4(Default::default());
|
|
//let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
|
|
// 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 = &*make_static!(Stack::new(
|
|
device,
|
|
config,
|
|
make_static!(StackResources::<2>::new()),
|
|
seed
|
|
));
|
|
|
|
// Launch network task
|
|
unwrap!(spawner.spawn(net_task(stack)));
|
|
|
|
// Ensure DHCP configuration is up before trying connect
|
|
stack.wait_config_up().await;
|
|
|
|
info!("Network task initialized");
|
|
|
|
// Then we can use it!
|
|
let mut rx_buffer = [0; 4096];
|
|
let mut tx_buffer = [0; 4096];
|
|
|
|
loop {
|
|
let mut socket = TcpSocket::new(&stack, &mut rx_buffer, &mut tx_buffer);
|
|
|
|
socket.set_timeout(Some(embassy_time::Duration::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);
|
|
Timer::after_secs(1).await;
|
|
continue;
|
|
}
|
|
info!("connected!");
|
|
let buf = [0; 1024];
|
|
loop {
|
|
let r = socket.write_all(&buf).await;
|
|
if let Err(e) = r {
|
|
info!("write error: {:?}", e);
|
|
break;
|
|
}
|
|
Timer::after_secs(1).await;
|
|
}
|
|
}
|
|
}
|