1 files changed, 69 insertions, 0 deletions
diff --git a/examples/nrf52840_blinky/src/bin/blinky_rtc.rs b/examples/nrf52840_blinky/src/bin/blinky_rtc.rs
new file mode 100644
index 00000000..e515659e
--- /dev/null
+++ b/examples/nrf52840_blinky/src/bin/blinky_rtc.rs
@@ -0,0 +1,69 @@
+#![deny(unsafe_code)]
+#![deny(warnings)]
+#![no_main]
+#![no_std]
+#![feature(type_alias_impl_trait)]
+
+use nrf52840_blinky::hal;
+
+#[rtic::app(device = hal::pac, dispatchers = [SWI0_EGU0])]
+mod app {
+    use super::*;
+
+    use hal::gpio::{Level, Output, Pin, PushPull};
+    use hal::prelude::*;
+
+    use rtic_monotonics::nrf::rtc::Rtc0 as Mono;
+    use rtic_monotonics::nrf::rtc::*;
+    use rtic_monotonics::Monotonic;
+
+    #[shared]
+    struct Shared {}
+
+    #[local]
+    struct Local {
+        led: Pin<Output<PushPull>>,
+    }
+
+    #[init]
+    fn init(cx: init::Context) -> (Shared, Local) {
+        // Configure low frequency clock
+        hal::clocks::Clocks::new(cx.device.CLOCK).start_lfclk();
+
+        // Initialize Monotonic
+        let token = rtic_monotonics::create_nrf_rtc0_monotonic_token!();
+        Mono::start(cx.device.RTC0, token);
+
+        // Setup LED
+        let port0 = hal::gpio::p0::Parts::new(cx.device.P0);
+        let led = port0.p0_06.into_push_pull_output(Level::Low).degrade();
+
+        // Schedule the blinking task
+        blink::spawn().ok();
+
+        (Shared {}, Local { led })
+    }
+
+    #[task(local = [led])]
+    async fn blink(cx: blink::Context) {
+        let blink::LocalResources { led, .. } = cx.local;
+
+        let mut next_tick = Mono::now();
+        let mut blink_on = false;
+        loop {
+            let now = Mono::now();
+            let now_ms: fugit::SecsDurationU64 = now.duration_since_epoch().convert();
+            defmt::println!("Timer {} ({})", now_ms, now.ticks());
+
+            blink_on = !blink_on;
+            if blink_on {
+                led.set_high().unwrap();
+            } else {
+                led.set_low().unwrap();
+            }
+
+            next_tick += 1000.millis();
+            Mono::delay_until(next_tick).await;
+        }
+    }
+}