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1 files changed, 37 insertions, 0 deletions

diff --git a/examples/preempt.rs b/examples/preempt.rs
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+++ b/examples/preempt.rs
@@ -0,0 +1,37 @@
+//! examples/preempt.rs
+
+#![no_main]
+#![no_std]
+
+use cortex_m_semihosting::{debug, hprintln};
+use lm3s6965::Interrupt;
+use panic_semihosting as _;
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init(_: init::Context) {
+        rtfm::pend(Interrupt::UART0);
+    }
+
+    #[task(binds = UART0, priority = 1)]
+    fn uart0(_: uart0::Context) {
+        hprintln!("UART0 - start").unwrap();
+        rtfm::pend(Interrupt::UART2);
+        hprintln!("UART0 - end").unwrap();
+        debug::exit(debug::EXIT_SUCCESS);
+    }
+
+    #[task(binds = UART1, priority = 2)]
+    fn uart1(_: uart1::Context) {
+        hprintln!(" UART1").unwrap();
+    }
+
+    #[task(binds = UART2, priority = 2)]
+    fn uart2(_: uart2::Context) {
+        hprintln!(" UART2 - start").unwrap();
+        rtfm::pend(Interrupt::UART1);
+        hprintln!(" UART2 - end").unwrap();
+    }
+};