Move examples to a subdirectory

examples/rp/src/bin/blinky.rs

@@ -0,0 +1,31 @@
+#![no_std]
+#![no_main]
+#![feature(asm)]
+#![feature(min_type_alias_impl_trait)]
+#![feature(impl_trait_in_bindings)]
+#![feature(type_alias_impl_trait)]
+#![allow(incomplete_features)]
+
+#[path = "../example_common.rs"]
+mod example_common;
+
+use defmt::*;
+use embassy::executor::Spawner;
+use embassy_rp::{gpio, Peripherals};
+use embedded_hal::digital::v2::OutputPin;
+use gpio::{Level, Output};
+
+#[embassy::main]
+async fn main(_spawner: Spawner, p: Peripherals) {
+    let mut led = Output::new(p.PIN_25, Level::Low);
+
+    loop {
+        info!("led on!");
+        led.set_high().unwrap();
+        cortex_m::asm::delay(1_000_000);
+
+        info!("led off!");
+        led.set_low().unwrap();
+        cortex_m::asm::delay(1_000_000);
+    }
+}

examples/rp/src/bin/button.rs

@@ -0,0 +1,29 @@
+#![no_std]
+#![no_main]
+#![feature(asm)]
+#![feature(min_type_alias_impl_trait)]
+#![feature(impl_trait_in_bindings)]
+#![feature(type_alias_impl_trait)]
+#![allow(incomplete_features)]
+
+#[path = "../example_common.rs"]
+mod example_common;
+
+use embassy::executor::Spawner;
+use embassy_rp::gpio::{Input, Level, Output, Pull};
+use embassy_rp::Peripherals;
+use embedded_hal::digital::v2::{InputPin, OutputPin};
+
+#[embassy::main]
+async fn main(_spawner: Spawner, p: Peripherals) {
+    let button = Input::new(p.PIN_28, Pull::Up);
+    let mut led = Output::new(p.PIN_25, Level::Low);
+
+    loop {
+        if button.is_high().unwrap() {
+            led.set_high().unwrap();
+        } else {
+            led.set_low().unwrap();
+        }
+    }
+}

examples/rp/src/bin/uart.rs

@@ -0,0 +1,25 @@
+#![no_std]
+#![no_main]
+#![feature(asm)]
+#![feature(min_type_alias_impl_trait)]
+#![feature(impl_trait_in_bindings)]
+#![feature(type_alias_impl_trait)]
+#![allow(incomplete_features)]
+
+#[path = "../example_common.rs"]
+mod example_common;
+
+use embassy::executor::Spawner;
+use embassy_rp::{uart, Peripherals};
+
+#[embassy::main]
+async fn main(_spawner: Spawner, p: Peripherals) {
+    let config = uart::Config::default();
+    let mut uart = uart::Uart::new(p.UART0, p.PIN_0, p.PIN_1, p.PIN_2, p.PIN_3, config);
+    uart.send("Hello World!\r\n".as_bytes());
+
+    loop {
+        uart.send("hello there!\r\n".as_bytes());
+        cortex_m::asm::delay(1_000_000);
+    }
+}

examples/rp/src/example_common.rs

@@ -0,0 +1,12 @@
+use core::sync::atomic::{AtomicUsize, Ordering};
+use defmt_rtt as _;
+use panic_probe as _;
+
+defmt::timestamp! {"{=u64}", {
+    static COUNT: AtomicUsize = AtomicUsize::new(0);
+    // NOTE(no-CAS) `timestamps` runs with interrupts disabled
+    let n = COUNT.load(Ordering::Relaxed);
+    COUNT.store(n + 1, Ordering::Relaxed);
+    n as u64
+}
+}