Add rtic-timer (timerqueue + monotonic) and rtic-monotonics (systick-monotonic)

rtic/examples/ramfunc.rs

@@ -0,0 +1,50 @@
+//! examples/ramfunc.rs
+
+#![deny(warnings)]
+#![deny(missing_docs)]
+#![no_main]
+#![no_std]
+#![feature(type_alias_impl_trait)]
+
+use panic_semihosting as _;
+
+#[rtic::app(
+    device = lm3s6965,
+    dispatchers = [
+        UART0,
+        #[link_section = ".data.UART1"]
+        UART1
+    ])
+]
+mod app {
+    use cortex_m_semihosting::{debug, hprintln};
+
+    #[shared]
+    struct Shared {}
+
+    #[local]
+    struct Local {}
+
+    #[init]
+    fn init(_: init::Context) -> (Shared, Local) {
+        foo::spawn().unwrap();
+
+        (Shared {}, Local {})
+    }
+
+    #[inline(never)]
+    #[task]
+    async fn foo(_: foo::Context) {
+        hprintln!("foo");
+
+        debug::exit(debug::EXIT_SUCCESS); // Exit QEMU simulator
+    }
+
+    // run this task from RAM
+    #[inline(never)]
+    #[link_section = ".data.bar"]
+    #[task(priority = 2)]
+    async fn bar(_: bar::Context) {
+        foo::spawn().unwrap();
+    }
+}