embassy-rp: Add basic ADC module

examples/rp/src/bin/adc.rs

@@ -0,0 +1,33 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_rp::adc::{Adc, Config};
+use embassy_rp::interrupt;
+use embassy_time::{Duration, Timer};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
+    let irq = interrupt::take!(ADC_IRQ_FIFO);
+    let mut adc = Adc::new(p.ADC, irq, Config::default());
+
+    let mut p26 = p.PIN_26;
+    let mut p27 = p.PIN_27;
+    let mut p28 = p.PIN_28;
+
+    loop {
+        let level = adc.read(&mut p26).await;
+        info!("Pin 26 ADC: {}", level);
+        let level = adc.read(&mut p27).await;
+        info!("Pin 27 ADC: {}", level);
+        let level = adc.read(&mut p28).await;
+        info!("Pin 28 ADC: {}", level);
+        let temp = adc.read_temperature().await;
+        info!("Temp: {}", temp);
+        Timer::after(Duration::from_secs(1)).await;
+    }
+}