Merge pull request #383 from embassy-rs/saadc-fixes

nrf: Saadc fixes

examples/nrf/src/bin/saadc.rs

@@ -0,0 +1,25 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+#![allow(incomplete_features)]
+
+#[path = "../example_common.rs"]
+mod example_common;
+use defmt::panic;
+use embassy::executor::Spawner;
+use embassy::time::{Duration, Timer};
+use embassy_nrf::saadc::{Config, OneShot, Sample};
+use embassy_nrf::{interrupt, Peripherals};
+use example_common::*;
+
+#[embassy::main]
+async fn main(_spawner: Spawner, mut p: Peripherals) {
+    let config = Config::default();
+    let mut saadc = OneShot::new(p.SAADC, interrupt::take!(SAADC), config);
+
+    loop {
+        let sample = saadc.sample(&mut p.P0_02).await;
+        info!("sample: {=i16}", sample);
+        Timer::after(Duration::from_millis(100)).await;
+    }
+}