From 2fd3b3c4042dd7bffc5387f589a6aef3cf44a8cb Mon Sep 17 00:00:00 2001
From: Finomnis <finomnis@gmail.com>
Date: Wed, 1 Nov 2023 12:13:25 +0100
Subject: Add Monotonic for i.MX RT chip family

---
 examples/teensy4_blinky/src/main.rs | 62 +++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 examples/teensy4_blinky/src/main.rs

(limited to 'examples/teensy4_blinky/src')

diff --git a/examples/teensy4_blinky/src/main.rs b/examples/teensy4_blinky/src/main.rs
new file mode 100644
index 0000000..1b95e7b
--- /dev/null
+++ b/examples/teensy4_blinky/src/main.rs
@@ -0,0 +1,62 @@
+#![deny(unsafe_code)]
+#![deny(warnings)]
+#![no_main]
+#![no_std]
+#![feature(type_alias_impl_trait)]
+
+#[panic_handler]
+fn panic(_: &::core::panic::PanicInfo) -> ! {
+    ::teensy4_panic::sos()
+}
+
+use teensy4_bsp::{board, hal};
+
+use rtic_monotonics::imxrt::Gpt1 as Mono;
+use rtic_monotonics::imxrt::*;
+
+#[rtic::app(device = teensy4_bsp, dispatchers = [LPSPI1])]
+mod app {
+    use super::*;
+
+    #[shared]
+    struct Shared {}
+
+    #[local]
+    struct Local {
+        led: board::Led,
+    }
+
+    #[init]
+    fn init(cx: init::Context) -> (Shared, Local) {
+        let board::Resources {
+            pins,
+            mut gpio2,
+            mut gpt1,
+            ..
+        } = board::t40(cx.device);
+
+        // Initialize the systick interrupt & obtain the token to prove that we did
+        gpt1.set_clock_source(hal::gpt::ClockSource::PeripheralClock);
+        let gpt1_mono_token = rtic_monotonics::create_imxrt_gpt1_token!();
+        Mono::start(board::PERCLK_FREQUENCY, gpt1.release(), gpt1_mono_token);
+
+        // Setup LED
+        let led = board::led(&mut gpio2, pins.p13);
+        led.set();
+
+        // 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;
+
+        loop {
+            led.toggle();
+            Mono::delay(1000.millis()).await;
+        }
+    }
+}
-- 
cgit v1.2.3