1 files changed, 19 insertions, 12 deletions
diff --git a/examples/periodic.rs b/examples/periodic.rs
index ba2b4933..d3aedd32 100644
--- a/examples/periodic.rs
+++ b/examples/periodic.rs
@@ -5,30 +5,37 @@
 #![no_main]
 #![no_std]
 
-extern crate panic_semihosting;
-
 use cortex_m_semihosting::hprintln;
-use rtfm::{app, Instant};
+use panic_semihosting as _;
+use rtic::cyccnt::{Instant, U32Ext};
 
 const PERIOD: u32 = 8_000_000;
 
 // NOTE: does NOT work on QEMU!
-#[app(device = lm3s6965)]
-const APP: () = {
+#[rtic::app(device = lm3s6965, monotonic = rtic::cyccnt::CYCCNT)]
+mod app {
+
     #[init(schedule = [foo])]
-    fn init() {
-        schedule.foo(Instant::now() + PERIOD.cycles()).unwrap();
+    fn init(cx: init::Context) -> init::LateResources {
+        // omitted: initialization of `CYCCNT`
+
+        cx.schedule.foo(cx.start + PERIOD.cycles()).unwrap();
+
+        init::LateResources {}
     }
 
     #[task(schedule = [foo])]
-    fn foo() {
+    fn foo(cx: foo::Context) {
         let now = Instant::now();
-        hprintln!("foo(scheduled = {:?}, now = {:?})", scheduled, now).unwrap();
+        hprintln!("foo(scheduled = {:?}, now = {:?})", cx.scheduled, now).unwrap();
 
-        schedule.foo(scheduled + PERIOD.cycles()).unwrap();
+        cx.schedule.foo(cx.scheduled + PERIOD.cycles()).unwrap();
     }
 
+    // RTIC requires that unused interrupts are declared in an extern block when
+    // using software tasks; these free interrupts will be used to dispatch the
+    // software tasks.
     extern "C" {
-        fn UART0();
+        fn SSI0();
     }
-};
+}