Merge branch 'master' into stm32g4-pll

24 files changed, 156 insertions, 42 deletions

diff --git a/examples/nrf52840-rtic/.cargo/config.toml b/examples/nrf52840-rtic/.cargo/config.toml
new file mode 100644
index 000000000..3872e7189
--- /dev/null
+++ b/examples/nrf52840-rtic/.cargo/config.toml
@@ -0,0 +1,9 @@
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+# replace nRF82840_xxAA with your chip as listed in `probe-rs-cli chip list`
+runner = "probe-rs-cli run --chip nRF52840_xxAA"
+
+[build]
+target = "thumbv7em-none-eabi"
+
+[env]
+DEFMT_LOG = "trace"
diff --git a/examples/nrf52840-rtic/Cargo.toml b/examples/nrf52840-rtic/Cargo.toml
new file mode 100644
index 000000000..0f9048b0f
--- /dev/null
+++ b/examples/nrf52840-rtic/Cargo.toml
@@ -0,0 +1,21 @@
+[package]
+edition = "2021"
+name = "embassy-nrf52840-rtic-examples"
+version = "0.1.0"
+license = "MIT OR Apache-2.0"
+
+[dependencies]
+rtic = { version = "2", features = ["thumbv7-backend"] }
+
+embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
+embassy-sync = { version = "0.2.0", path = "../../embassy-sync", features = ["defmt"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["nightly", "unstable-traits", "defmt", "defmt-timestamp-uptime", "generic-queue"] }
+embassy-nrf = { version = "0.1.0", path = "../../embassy-nrf", features = ["nightly", "unstable-traits", "defmt", "nrf52840", "time-driver-rtc1", "gpiote", "unstable-pac", "time"] }
+
+defmt = "0.3"
+defmt-rtt = "0.4"
+
+cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
+cortex-m-rt = "0.7.0"
+panic-probe = { version = "0.3", features = ["print-defmt"] }
+futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
diff --git a/examples/nrf52840-rtic/build.rs b/examples/nrf52840-rtic/build.rs
new file mode 100644
index 000000000..30691aa97
--- /dev/null
+++ b/examples/nrf52840-rtic/build.rs
@@ -0,0 +1,35 @@
+//! This build script copies the `memory.x` file from the crate root into
+//! a directory where the linker can always find it at build time.
+//! For many projects this is optional, as the linker always searches the
+//! project root directory -- wherever `Cargo.toml` is. However, if you
+//! are using a workspace or have a more complicated build setup, this
+//! build script becomes required. Additionally, by requesting that
+//! Cargo re-run the build script whenever `memory.x` is changed,
+//! updating `memory.x` ensures a rebuild of the application with the
+//! new memory settings.
+
+use std::env;
+use std::fs::File;
+use std::io::Write;
+use std::path::PathBuf;
+
+fn main() {
+    // Put `memory.x` in our output directory and ensure it's
+    // on the linker search path.
+    let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
+    File::create(out.join("memory.x"))
+        .unwrap()
+        .write_all(include_bytes!("memory.x"))
+        .unwrap();
+    println!("cargo:rustc-link-search={}", out.display());
+
+    // By default, Cargo will re-run a build script whenever
+    // any file in the project changes. By specifying `memory.x`
+    // here, we ensure the build script is only re-run when
+    // `memory.x` is changed.
+    println!("cargo:rerun-if-changed=memory.x");
+
+    println!("cargo:rustc-link-arg-bins=--nmagic");
+    println!("cargo:rustc-link-arg-bins=-Tlink.x");
+    println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
+}
diff --git a/examples/nrf52840-rtic/memory.x b/examples/nrf52840-rtic/memory.x
new file mode 100644
index 000000000..9b04edec0
--- /dev/null
+++ b/examples/nrf52840-rtic/memory.x
@@ -0,0 +1,7 @@
+MEMORY
+{
+  /* NOTE 1 K = 1 KiBi = 1024 bytes */
+  /* These values correspond to the NRF52840 with Softdevices S140 7.0.1 */
+  FLASH : ORIGIN = 0x00000000, LENGTH = 1024K
+  RAM : ORIGIN = 0x20000000, LENGTH = 256K
+}
diff --git a/examples/nrf52840-rtic/src/bin/blinky.rs b/examples/nrf52840-rtic/src/bin/blinky.rs
new file mode 100644
index 000000000..a682c1932
--- /dev/null
+++ b/examples/nrf52840-rtic/src/bin/blinky.rs
@@ -0,0 +1,43 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use {defmt_rtt as _, panic_probe as _};
+
+#[rtic::app(device = embassy_nrf, peripherals = false, dispatchers = [SWI0_EGU0, SWI1_EGU1])]
+mod app {
+    use defmt::info;
+    use embassy_nrf::gpio::{Level, Output, OutputDrive};
+    use embassy_nrf::peripherals;
+    use embassy_time::{Duration, Timer};
+
+    #[shared]
+    struct Shared {}
+
+    #[local]
+    struct Local {}
+
+    #[init]
+    fn init(_: init::Context) -> (Shared, Local) {
+        info!("Hello World!");
+
+        let p = embassy_nrf::init(Default::default());
+        blink::spawn(p.P0_13).map_err(|_| ()).unwrap();
+
+        (Shared {}, Local {})
+    }
+
+    #[task(priority = 1)]
+    async fn blink(_cx: blink::Context, pin: peripherals::P0_13) {
+        let mut led = Output::new(pin, Level::Low, OutputDrive::Standard);
+
+        loop {
+            info!("off!");
+            led.set_high();
+            Timer::after(Duration::from_millis(300)).await;
+            info!("on!");
+            led.set_low();
+            Timer::after(Duration::from_millis(300)).await;
+        }
+    }
+}
diff --git a/examples/nrf52840/src/bin/usb_ethernet.rs b/examples/nrf52840/src/bin/usb_ethernet.rs
index 1065f5b5d..f527c0d7f 100644
--- a/examples/nrf52840/src/bin/usb_ethernet.rs
+++ b/examples/nrf52840/src/bin/usb_ethernet.rs
@@ -97,12 +97,12 @@ async fn main(spawner: Spawner) {
     let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
     unwrap!(spawner.spawn(usb_ncm_task(runner)));
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::Static(embassy_net::StaticConfig {
+    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)),
-    //});
+    // });
 
     // Generate random seed
     let mut rng = Rng::new(p.RNG, Irqs);
diff --git a/examples/rp/src/bin/ethernet_w5500_multisocket.rs b/examples/rp/src/bin/ethernet_w5500_multisocket.rs
index 63e142e7d..82568254a 100644
--- a/examples/rp/src/bin/ethernet_w5500_multisocket.rs
+++ b/examples/rp/src/bin/ethernet_w5500_multisocket.rs
@@ -64,7 +64,7 @@ async fn main(spawner: Spawner) {
     // Init network stack
     let stack = &*make_static!(Stack::new(
         device,
-        embassy_net::Config::Dhcp(Default::default()),
+        embassy_net::Config::dhcpv4(Default::default()),
         make_static!(StackResources::<3>::new()),
         seed
     ));
@@ -120,9 +120,9 @@ async fn listen_task(stack: &'static Stack<Device<'static>>, id: u8, port: u16)
     }
 }
 
-async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfig {
+async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfigV4 {
     loop {
-        if let Some(config) = stack.config() {
+        if let Some(config) = stack.config_v4() {
             return config.clone();
         }
         yield_now().await;
diff --git a/examples/rp/src/bin/ethernet_w5500_tcp_client.rs b/examples/rp/src/bin/ethernet_w5500_tcp_client.rs
index a532de00d..d562defad 100644
--- a/examples/rp/src/bin/ethernet_w5500_tcp_client.rs
+++ b/examples/rp/src/bin/ethernet_w5500_tcp_client.rs
@@ -67,7 +67,7 @@ async fn main(spawner: Spawner) {
     // Init network stack
     let stack = &*make_static!(Stack::new(
         device,
-        embassy_net::Config::Dhcp(Default::default()),
+        embassy_net::Config::dhcpv4(Default::default()),
         make_static!(StackResources::<2>::new()),
         seed
     ));
@@ -108,9 +108,9 @@ async fn main(spawner: Spawner) {
     }
 }
 
-async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfig {
+async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfigV4 {
     loop {
-        if let Some(config) = stack.config() {
+        if let Some(config) = stack.config_v4() {
             return config.clone();
         }
         yield_now().await;
diff --git a/examples/rp/src/bin/ethernet_w5500_tcp_server.rs b/examples/rp/src/bin/ethernet_w5500_tcp_server.rs
index 599f6b1e9..7f521cdb4 100644
--- a/examples/rp/src/bin/ethernet_w5500_tcp_server.rs
+++ b/examples/rp/src/bin/ethernet_w5500_tcp_server.rs
@@ -65,7 +65,7 @@ async fn main(spawner: Spawner) {
     // Init network stack
     let stack = &*make_static!(Stack::new(
         device,
-        embassy_net::Config::Dhcp(Default::default()),
+        embassy_net::Config::dhcpv4(Default::default()),
         make_static!(StackResources::<2>::new()),
         seed
     ));
@@ -116,9 +116,9 @@ async fn main(spawner: Spawner) {
     }
 }
 
-async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfig {
+async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfigV4 {
     loop {
-        if let Some(config) = stack.config() {
+        if let Some(config) = stack.config_v4() {
             return config.clone();
         }
         yield_now().await;
diff --git a/examples/rp/src/bin/ethernet_w5500_udp.rs b/examples/rp/src/bin/ethernet_w5500_udp.rs
index ac5a65bb6..ada86ae55 100644
--- a/examples/rp/src/bin/ethernet_w5500_udp.rs
+++ b/examples/rp/src/bin/ethernet_w5500_udp.rs
@@ -62,7 +62,7 @@ async fn main(spawner: Spawner) {
     // Init network stack
     let stack = &*make_static!(Stack::new(
         device,
-        embassy_net::Config::Dhcp(Default::default()),
+        embassy_net::Config::dhcpv4(Default::default()),
         make_static!(StackResources::<2>::new()),
         seed
     ));
@@ -95,9 +95,9 @@ async fn main(spawner: Spawner) {
     }
 }
 
-async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfig {
+async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfigV4 {
     loop {
-        if let Some(config) = stack.config() {
+        if let Some(config) = stack.config_v4() {
             return config.clone();
         }
         yield_now().await;
diff --git a/examples/rp/src/bin/usb_ethernet.rs b/examples/rp/src/bin/usb_ethernet.rs
index 16fbf5e91..91d1ec8e7 100644
--- a/examples/rp/src/bin/usb_ethernet.rs
+++ b/examples/rp/src/bin/usb_ethernet.rs
@@ -86,8 +86,8 @@ async fn main(spawner: Spawner) {
     let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
     unwrap!(spawner.spawn(usb_ncm_task(runner)));
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::Static(embassy_net::StaticConfig {
+    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)),
diff --git a/examples/rp/src/bin/wifi_ap_tcp_server.rs b/examples/rp/src/bin/wifi_ap_tcp_server.rs
index b27d3c9f8..e8197390c 100644
--- a/examples/rp/src/bin/wifi_ap_tcp_server.rs
+++ b/examples/rp/src/bin/wifi_ap_tcp_server.rs
@@ -62,7 +62,7 @@ async fn main(spawner: Spawner) {
         .await;
 
     // Use a link-local address for communication without DHCP server
-    let config = Config::Static(embassy_net::StaticConfig {
+    let config = Config::ipv4_static(embassy_net::StaticConfigV4 {
         address: embassy_net::Ipv4Cidr::new(embassy_net::Ipv4Address::new(169, 254, 1, 1), 16),
         dns_servers: heapless::Vec::new(),
         gateway: None,
diff --git a/examples/rp/src/bin/wifi_tcp_server.rs b/examples/rp/src/bin/wifi_tcp_server.rs
index 1a00bca96..026e056fa 100644
--- a/examples/rp/src/bin/wifi_tcp_server.rs
+++ b/examples/rp/src/bin/wifi_tcp_server.rs
@@ -61,8 +61,8 @@ async fn main(spawner: Spawner) {
         .set_power_management(cyw43::PowerManagementMode::PowerSave)
         .await;
 
-    let config = Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::Static(embassy_net::Config {
+    let config = Config::dhcpv4(Default::default());
+    //let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
diff --git a/examples/std/src/bin/net.rs b/examples/std/src/bin/net.rs
index b42bfc13b..3aadb029d 100644
--- a/examples/std/src/bin/net.rs
+++ b/examples/std/src/bin/net.rs
@@ -42,13 +42,13 @@ async fn main_task(spawner: Spawner) {
 
     // Choose between dhcp or static ip
     let config = if opts.static_ip {
-        Config::Static(embassy_net::StaticConfig {
+        Config::ipv4_static(embassy_net::StaticConfigV4 {
             address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
             dns_servers: Vec::new(),
             gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
         })
     } else {
-        Config::Dhcp(Default::default())
+        Config::dhcpv4(Default::default())
     };
 
     // Generate random seed
diff --git a/examples/std/src/bin/net_dns.rs b/examples/std/src/bin/net_dns.rs
index 932ac5831..65b5a2cd9 100644
--- a/examples/std/src/bin/net_dns.rs
+++ b/examples/std/src/bin/net_dns.rs
@@ -40,14 +40,14 @@ async fn main_task(spawner: Spawner) {
 
     // Choose between dhcp or static ip
     let config = if opts.static_ip {
-        Config::Static(embassy_net::StaticConfig {
+        Config::ipv4_static(embassy_net::StaticConfigV4 {
             address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 1), 24),
             dns_servers: Vec::from_slice(&[Ipv4Address::new(8, 8, 4, 4).into(), Ipv4Address::new(8, 8, 8, 8).into()])
                 .unwrap(),
             gateway: Some(Ipv4Address::new(192, 168, 69, 100)),
         })
     } else {
-        Config::Dhcp(Default::default())
+        Config::dhcpv4(Default::default())
     };
 
     // Generate random seed
diff --git a/examples/std/src/bin/net_udp.rs b/examples/std/src/bin/net_udp.rs
index d89ec7643..3fc46156c 100644
--- a/examples/std/src/bin/net_udp.rs
+++ b/examples/std/src/bin/net_udp.rs
@@ -38,13 +38,13 @@ async fn main_task(spawner: Spawner) {
 
     // Choose between dhcp or static ip
     let config = if opts.static_ip {
-        Config::Static(embassy_net::StaticConfig {
+        Config::ipv4_static(embassy_net::StaticConfigV4 {
             address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
             dns_servers: Vec::new(),
             gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
         })
     } else {
-        Config::Dhcp(Default::default())
+        Config::dhcpv4(Default::default())
     };
 
     // Generate random seed
diff --git a/examples/std/src/bin/tcp_accept.rs b/examples/std/src/bin/tcp_accept.rs
index 01695baea..df09986ac 100644
--- a/examples/std/src/bin/tcp_accept.rs
+++ b/examples/std/src/bin/tcp_accept.rs
@@ -53,13 +53,13 @@ async fn main_task(spawner: Spawner) {
 
     // Choose between dhcp or static ip
     let config = if opts.static_ip {
-        Config::Static(embassy_net::StaticConfig {
+        Config::ipv4_static(embassy_net::StaticConfigV4 {
             address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
             dns_servers: Vec::new(),
             gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
         })
     } else {
-        Config::Dhcp(Default::default())
+        Config::dhcpv4(Default::default())
     };
 
     // Generate random seed
diff --git a/examples/stm32f4/src/bin/usb_ethernet.rs b/examples/stm32f4/src/bin/usb_ethernet.rs
index d229cc3ef..953d99a45 100644
--- a/examples/stm32f4/src/bin/usb_ethernet.rs
+++ b/examples/stm32f4/src/bin/usb_ethernet.rs
@@ -94,8 +94,8 @@ async fn main(spawner: Spawner) {
     let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
     unwrap!(spawner.spawn(usb_ncm_task(runner)));
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::Static(embassy_net::StaticConfig {
+    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)),
diff --git a/examples/stm32f7/build.rs b/examples/stm32f7/build.rs
index c4e15f19c..2b5d412a9 100644
--- a/examples/stm32f7/build.rs
+++ b/examples/stm32f7/build.rs
@@ -1,9 +1,8 @@
 //! adapted from https://github.com/stm32-rs/stm32f7xx-hal/blob/master/build.rs
-use std::env;
 use std::fs::File;
 use std::io::prelude::*;
-use std::io::{self};
 use std::path::PathBuf;
+use std::{env, io};
 
 #[derive(Debug)]
 enum Error {
diff --git a/examples/stm32f7/src/bin/eth.rs b/examples/stm32f7/src/bin/eth.rs
index d8438241c..fde6a7576 100644
--- a/examples/stm32f7/src/bin/eth.rs
+++ b/examples/stm32f7/src/bin/eth.rs
@@ -62,8 +62,8 @@ async fn main(spawner: Spawner) -> ! {
         0,
     );
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::Static(embassy_net::StaticConfig {
+    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)),
diff --git a/examples/stm32h5/src/bin/eth.rs b/examples/stm32h5/src/bin/eth.rs
index 5d1eadf4b..78c8282a6 100644
--- a/examples/stm32h5/src/bin/eth.rs
+++ b/examples/stm32h5/src/bin/eth.rs
@@ -81,8 +81,8 @@ async fn main(spawner: Spawner) -> ! {
         0,
     );
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::Static(embassy_net::StaticConfig {
+    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)),
diff --git a/examples/stm32h7/src/bin/eth.rs b/examples/stm32h7/src/bin/eth.rs
index 3aa7b2271..12d37f7a4 100644
--- a/examples/stm32h7/src/bin/eth.rs
+++ b/examples/stm32h7/src/bin/eth.rs
@@ -63,8 +63,8 @@ async fn main(spawner: Spawner) -> ! {
         0,
     );
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::Static(embassy_net::StaticConfig {
+    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)),
diff --git a/examples/stm32h7/src/bin/eth_client.rs b/examples/stm32h7/src/bin/eth_client.rs
index 575c716b6..6078fc3fe 100644
--- a/examples/stm32h7/src/bin/eth_client.rs
+++ b/examples/stm32h7/src/bin/eth_client.rs
@@ -64,8 +64,8 @@ async fn main(spawner: Spawner) -> ! {
         0,
     );
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticConfig(embassy_net::Config {
+    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)),
diff --git a/examples/stm32l5/src/bin/usb_ethernet.rs b/examples/stm32l5/src/bin/usb_ethernet.rs
index 6163e0709..32eba4277 100644
--- a/examples/stm32l5/src/bin/usb_ethernet.rs
+++ b/examples/stm32l5/src/bin/usb_ethernet.rs
@@ -91,8 +91,8 @@ async fn main(spawner: Spawner) {
     let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
     unwrap!(spawner.spawn(usb_ncm_task(runner)));
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::Static(embassy_net::StaticConfig {
+    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)),