Ethernet and smoltcp/embassy-net support

examples/zedboard/src/bin/ethernet.rs

@@ -7,7 +7,20 @@
 //! Alternatively, you can also set a static IPv4 configuration via the `STATIC_IPV4_CONFIG`
 //! constant and by setting `USE_DHCP` to `false`.
 //!
-//! It also exposes simple UDP and TCP echo servers.
+//! It also exposes simple UDP and TCP echo servers. You can use the following sample commands
+//! to send UDP or TCP data to the Zedboard using the Unix `netcat` application:
+//!
+//! ## UDP
+//!
+//! ```sh
+//! echo "Hello Zedboard" | nc -uN <ip-address> 8000
+//! ```
+//!
+//! ## TCP
+//!
+//! ```sh
+//! echo "Hello Zedboard" | nc -N <ip-address> 8000
+//! ```
 #![no_std]
 #![no_main]
 
@@ -118,7 +131,7 @@ async fn udp_task(mut udp: UdpSocket<'static>) -> ! {
     loop {
         match udp.recv_from(&mut rx_buf).await {
             Ok((data, meta)) => {
-                log::info!("UDP: rx {data} bytes from {meta:?}");
+                log::info!("udp rx {data} bytes from {meta:?}");
                 match udp.send_to(&rx_buf[0..data], meta).await {
                     Ok(_) => (),
                     Err(e) => {
@@ -152,6 +165,7 @@ async fn tcp_task(mut tcp: TcpSocket<'static>) -> ! {
                                 tcp.close();
                             }
                             Ok(read_bytes) => {
+                                log::info!("tcp rx {read_bytes} bytes");
                                 if tcp.may_send() {
                                     match tcp.write_all(&rx_buf[0..read_bytes]).await {
                                         Ok(_) => continue,