Merge pull request #379 from bobmcwhirter/random_range

Random range

examples/stm32h7/src/bin/eth.rs

@@ -21,7 +21,7 @@ use embassy_net::{
 };
 use embassy_stm32::eth::lan8742a::LAN8742A;
 use embassy_stm32::eth::{Ethernet, State};
-use embassy_stm32::rng::Random;
+use embassy_stm32::rng::Rng;
 use embassy_stm32::{interrupt, peripherals};
 use heapless::Vec;
 use panic_probe as _;
@@ -81,7 +81,7 @@ fn _embassy_rand(buf: &mut [u8]) {
     });
 }
 
-static mut RNG_INST: Option<Random<RNG>> = None;
+static mut RNG_INST: Option<Rng<RNG>> = None;
 
 static EXECUTOR: Forever<Executor> = Forever::new();
 static STATE: Forever<State<'static, 4, 4>> = Forever::new();
@@ -97,7 +97,7 @@ fn main() -> ! {
 
     let p = embassy_stm32::init(config());
 
-    let rng = Random::new(p.RNG);
+    let rng = Rng::new(p.RNG);
     unsafe {
         RNG_INST.replace(rng);
     }

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::traits::rng::Random;
+use embassy_stm32::gpio::{Level, Output, Speed};
+use embassy_stm32::rng::Rng;
+use embassy_stm32::Peripherals;
+use embedded_hal::digital::v2::OutputPin;
+use example_common::*;
+
+#[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(Rng::new(p.RNG));
+
+    loop {
+        info!("high {}", unwrap!(rng.next_u8(16).await));
+        unwrap!(led.set_high());
+        Timer::after(Duration::from_millis(500)).await;
+
+        info!("low {}", unwrap!(rng.next_u8(16).await));
+        unwrap!(led.set_low());
+        Timer::after(Duration::from_millis(500)).await;
+    }
+}