From 78f7d1b786d6b838cf80ddd0199707b0db3dc854 Mon Sep 17 00:00:00 2001
From: Bob McWhirter <bmcwhirt@redhat.com>
Date: Fri, 27 Aug 2021 16:10:50 -0400
Subject: [PATCH] Add example using ranged RNG.

---
 examples/stm32h7/src/bin/rng.rs | 35 +++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 examples/stm32h7/src/bin/rng.rs

diff --git a/examples/stm32h7/src/bin/rng.rs b/examples/stm32h7/src/bin/rng.rs
new file mode 100644
index 00000000..48aad26b
--- /dev/null
+++ b/examples/stm32h7/src/bin/rng.rs
@@ -0,0 +1,35 @@
+#![no_std]
+#![no_main]
+#![feature(trait_alias)]
+#![feature(type_alias_impl_trait)]
+#![allow(incomplete_features)]
+
+#[path = "../example_common.rs"]
+mod example_common;
+use embassy::executor::Spawner;
+use embassy::time::{Duration, Timer};
+use embassy_stm32::gpio::{Level, Output, Speed};
+use embassy_stm32::Peripherals;
+use embedded_hal::digital::v2::OutputPin;
+use example_common::*;
+use embassy_stm32::rng::Random;
+use embassy::traits::rng::Rng;
+
+#[embassy::main]
+async fn main(_spawner: Spawner, p: Peripherals) {
+    info!("Hello World!");
+
+    let mut led = Output::new(p.PB14, Level::High, Speed::Low);
+
+    let mut rng = Random::new(p.RNG);
+
+    loop {
+        info!("high {}", unwrap!(rng.next(16).await) );
+        unwrap!(led.set_high());
+        Timer::after(Duration::from_millis(500)).await;
+
+        info!("low {}", unwrap!(rng.next(16).await) );
+        unwrap!(led.set_low());
+        Timer::after(Duration::from_millis(500)).await;
+    }
+}