1 files changed, 43 insertions, 0 deletions
diff --git a/examples/idle.rs b/examples/idle.rs
new file mode 100644
index 00000000..013cccea
--- /dev/null
+++ b/examples/idle.rs
@@ -0,0 +1,43 @@
+//! examples/idle.rs
+
+#![deny(unsafe_code)]
+#![deny(warnings)]
+#![no_main]
+#![no_std]
+
+extern crate panic_semihosting;
+
+use cortex_m_semihosting::debug;
+use rtfm::app;
+
+macro_rules! println {
+    ($($tt:tt)*) => {
+        if let Ok(mut stdout) = cortex_m_semihosting::hio::hstdout() {
+            use core::fmt::Write;
+
+            writeln!(stdout, $($tt)*).ok();
+        }
+    };
+}
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {
+        println!("init");
+    }
+
+    #[idle]
+    fn idle() -> ! {
+        static mut X: u32 = 0;
+
+        // Safe access to local `static mut` variable
+        let _x: &'static mut u32 = X;
+
+        println!("idle");
+
+        debug::exit(debug::EXIT_SUCCESS);
+
+        loop {}
+    }
+};