From 9a4f97ca5ebf19e6612115db5c763d0d61dd28a1 Mon Sep 17 00:00:00 2001
From: Per Lindgren <per.lindgren@ltu.se>
Date: Sat, 7 Jan 2023 17:59:39 +0100
Subject: more examples

---
 examples/async-infinite-loop.no_rs | 53 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 examples/async-infinite-loop.no_rs

(limited to 'examples/async-infinite-loop.no_rs')

diff --git a/examples/async-infinite-loop.no_rs b/examples/async-infinite-loop.no_rs
new file mode 100644
index 00000000..a95f9986
--- /dev/null
+++ b/examples/async-infinite-loop.no_rs
@@ -0,0 +1,53 @@
+#![no_main]
+#![no_std]
+#![feature(type_alias_impl_trait)]
+
+use panic_semihosting as _;
+
+#[rtic::app(device = lm3s6965, dispatchers = [SSI0, UART0], peripherals = true)]
+mod app {
+    use cortex_m_semihosting::{debug, hprintln};
+    use systick_monotonic::*;
+
+    #[shared]
+    struct Shared {}
+
+    #[local]
+    struct Local {}
+
+    #[monotonic(binds = SysTick, default = true)]
+    type MyMono = Systick<100>;
+
+    #[init]
+    fn init(cx: init::Context) -> (Shared, Local) {
+        hprintln!("init").unwrap();
+
+        foo::spawn().ok();
+
+        (Shared {}, Local {})
+    }
+
+    #[idle]
+    fn idle(_: idle::Context) -> ! {
+        loop {
+            cortex_m::asm::wfi(); // put the MCU in sleep mode until interrupt occurs
+        }
+    }
+
+    // Infinite loops are not allowed in RTIC, however in async tasks they are - if there is an
+    // await inside the loop.
+    #[task]
+    async fn foo(_cx: foo::Context) {
+        let mut i = 0;
+        loop {
+            if i == 5 {
+                debug::exit(debug::EXIT_SUCCESS);
+            }
+
+            hprintln!("hello from async {}", i).ok();
+            monotonics::delay(100.millis()).await; // This makes it okey!
+
+            i += 1;
+        }
+    }
+}
-- 
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