1 files changed, 22 insertions, 0 deletions
diff --git a/cortex-m-rt/examples/pre_init.rs b/cortex-m-rt/examples/pre_init.rs
new file mode 100644
index 0000000..7258936
--- /dev/null
+++ b/cortex-m-rt/examples/pre_init.rs
@@ -0,0 +1,22 @@
+//! `cortex-m-rt` based program with a function run before RAM is initialized.
+
+#![deny(warnings)]
+#![no_main]
+#![no_std]
+
+#[macro_use(entry, pre_init)]
+extern crate cortex_m_rt as rt;
+extern crate panic_semihosting;
+
+pre_init!(disable_watchdog);
+
+unsafe fn disable_watchdog() {
+    // Do what you need to disable the watchdog.
+}
+
+// the program entry point
+entry!(main);
+
+fn main() -> ! {
+    loop {}
+}