wyatt/esp32s3ETH_hello_world
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Finally compiles

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Wyatt Marchand
2026-08-24 19:30:05 -07:00
commit 777c72cbfb
7 changed files with 121 additions and 0 deletions
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.cargo/config.toml
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[build]
target = "xtensa-esp32s3-espidf"
[target.xtensa-esp32s3-espidf]
linker = "ldproxy"
[unstable]
build-std = ["std", "panic_abort"]
[env]
MCU = "esp32s3"
ESP_IDF_VERSION = "v5.3.1"
.gitignore
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/.vscode
/.embuild
/target
/Cargo.lock
Cargo.toml
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[package]
name = "hello-eth"
version = "0.1.0"
edition = "2021"
[[bin]]
name = "hello-eth"
harness = false
[profile.release]
opt-level = "s"
[dependencies]
esp-idf-svc = { version = "0.51", features = ["std"] }
anyhow = "1"
log = "0.4"
[build-dependencies]
embuild = "0.33"
build.rs
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fn main() {
embuild::espidf::sysenv::output();
}
rust-toolchain.toml
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[toolchain]
channel = "esp"
sdkconfig.defaults
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# Rust often needs a bit of an extra main task stack size compared to C (the default is 3K)
# You might have to increase this further if you allocate large stack variables in the main task
CONFIG_ESP_MAIN_TASK_STACK_SIZE=8192
# Increase a bit these stack sizes as they are also a bit too small by default
CONFIG_ESP_SYSTEM_EVENT_TASK_STACK_SIZE=4096
CONFIG_FREERTOS_IDLE_TASK_STACKSIZE=4096
# You might have to increase this further if you spawn your own Rust threads
# that allocate large stack variables; or better yet - use
# `std::thread::Builder::new().stack_size(XXX)` for spawning
CONFIG_PTHREAD_TASK_STACK_SIZE_DEFAULT=4096
CONFIG_ETH_SPI_ETHERNET_W5500=y
CONFIG_ESP_MAIN_TASK_STACK_SIZE=8000
CONFIG_HTTPD_MAX_REQ_HDR_LEN=1024
src/main.rs
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use std::thread;
use std::time::Duration;
use esp_idf_svc::eth::{BlockingEth, EspEth, EthDriver, SpiEthChipset};
use esp_idf_svc::eventloop::EspSystemEventLoop;
use esp_idf_svc::hal::peripherals::Peripherals;
use esp_idf_svc::hal::prelude::*;
use esp_idf_svc::hal::spi::{config::DriverConfig, SpiDriver};
use esp_idf_svc::http::server::{Configuration as HttpServerConfig, EspHttpServer};
use esp_idf_svc::http::Method;
use esp_idf_svc::io::Write;
use log::info;
fn main() -> anyhow::Result<()> {
esp_idf_svc::sys::link_patches();
esp_idf_svc::log::EspLogger::initialize_default();
let peripherals = Peripherals::take()?;
let sysloop = EspSystemEventLoop::take()?;
let pins = peripherals.pins;
let spi_driver = SpiDriver::new(
peripherals.spi2,
pins.gpio13, // SCLK
pins.gpio11, // MOSI (sdo)
Some(pins.gpio12), // MISO (sdi)
&DriverConfig::new(),
)?;
let eth_driver = EthDriver::new_spi(
spi_driver,
pins.gpio10, // INT
Some(pins.gpio14), // CS
Some(pins.gpio9), // RST
SpiEthChipset::W5500,
20.MHz().into(),
Some(&[0x02, 0x00, 0x00, 0x12, 0x34, 0x56]), // locally-administered MAC
None, // phy addr — default
sysloop.clone(),
)?;
let eth = EspEth::wrap(eth_driver)?;
let mut eth = BlockingEth::wrap(eth, sysloop)?;
info!("Starting eth...");
eth.start()?;
info!("Waiting for DHCP lease...");
eth.wait_netif_up()?;
let ip_info = eth.eth().netif().get_ip_info()?;
info!("Got IP: {:?}", ip_info);
let mut server = EspHttpServer::new(&HttpServerConfig::default())?;
server.fn_handler("/", Method::Get, |req| {
let html = "<html><body><h1>Hello World</h1></body></html>";
req.into_ok_response()?.write_all(html.as_bytes())?;
anyhow::Ok(())
})?;
info!("Server up. Browse to http://{}/", ip_info.ip);
loop {
thread::sleep(Duration::from_secs(1));
}
}