Rename examples/nrf to examples/nrf52840

examples/nrf52840/src/bin/raw_spawn.rs

@@ -0,0 +1,52 @@
+#![no_std]
+#![no_main]
+
+use core::mem;
+
+use cortex_m_rt::entry;
+use defmt::{info, unwrap};
+use embassy_executor::raw::TaskStorage;
+use embassy_executor::Executor;
+use embassy_time::{Duration, Timer};
+use static_cell::StaticCell;
+use {defmt_rtt as _, panic_probe as _};
+
+async fn run1() {
+    loop {
+        info!("BIG INFREQUENT TICK");
+        Timer::after(Duration::from_ticks(64000)).await;
+    }
+}
+
+async fn run2() {
+    loop {
+        info!("tick");
+        Timer::after(Duration::from_ticks(13000)).await;
+    }
+}
+
+static EXECUTOR: StaticCell<Executor> = StaticCell::new();
+
+#[entry]
+fn main() -> ! {
+    info!("Hello World!");
+
+    let _p = embassy_nrf::init(Default::default());
+    let executor = EXECUTOR.init(Executor::new());
+
+    let run1_task = TaskStorage::new();
+    let run2_task = TaskStorage::new();
+
+    // Safety: these variables do live forever if main never returns.
+    let run1_task = unsafe { make_static(&run1_task) };
+    let run2_task = unsafe { make_static(&run2_task) };
+
+    executor.run(|spawner| {
+        unwrap!(spawner.spawn(run1_task.spawn(|| run1())));
+        unwrap!(spawner.spawn(run2_task.spawn(|| run2())));
+    });
+}
+
+unsafe fn make_static<T>(t: &T) -> &'static T {
+    mem::transmute(t)
+}