tests/nrf: add non-buffered uart tests.

tests/nrf/Cargo.toml

@@ -91,6 +91,16 @@ name = "timer"
 path = "src/bin/timer.rs"
 required-features = []
 
+[[bin]]
+name = "uart_halves"
+path = "src/bin/uart_halves.rs"
+required-features = [ "two-uarts",]
+
+[[bin]]
+name = "uart_split"
+path = "src/bin/uart_split.rs"
+required-features = [ "easydma",]
+
 [[bin]]
 name = "wifi_esp_hosted_perf"
 path = "src/bin/wifi_esp_hosted_perf.rs"

tests/nrf/src/bin/uart_halves.rs

@@ -0,0 +1,41 @@
+// required-features: two-uarts
+#![no_std]
+#![no_main]
+
+#[path = "../common.rs"]
+mod common;
+
+use defmt::{assert_eq, *};
+use embassy_executor::Spawner;
+use embassy_futures::join::join;
+use embassy_nrf::uarte::{UarteRx, UarteTx};
+use embassy_nrf::{peripherals, uarte};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let mut p = embassy_nrf::init(Default::default());
+    let mut config = uarte::Config::default();
+    config.parity = uarte::Parity::EXCLUDED;
+    config.baudrate = uarte::Baudrate::BAUD1M;
+
+    let mut tx = UarteTx::new(&mut peri!(p, UART0), irqs!(UART0), &mut peri!(p, PIN_A), config.clone());
+    let mut rx = UarteRx::new(&mut peri!(p, UART1), irqs!(UART1), &mut peri!(p, PIN_B), config.clone());
+
+    let data = [
+        0x42, 0x43, 0x44, 0x45, 0x66, 0x12, 0x23, 0x34, 0x45, 0x19, 0x91, 0xaa, 0xff, 0xa5, 0x5a, 0x77,
+    ];
+
+    let tx_fut = async {
+        tx.write(&data).await.unwrap();
+    };
+    let rx_fut = async {
+        let mut buf = [0u8; 16];
+        rx.read(&mut buf).await.unwrap();
+        assert_eq!(data, buf);
+    };
+    join(rx_fut, tx_fut).await;
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/bin/uart_split.rs

@@ -0,0 +1,49 @@
+// required-features: easydma
+#![no_std]
+#![no_main]
+
+#[path = "../common.rs"]
+mod common;
+
+use defmt::{assert_eq, *};
+use embassy_executor::Spawner;
+use embassy_futures::join::join;
+use embassy_nrf::uarte::Uarte;
+use embassy_nrf::{peripherals, uarte};
+use embassy_time::Timer;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let mut p = embassy_nrf::init(Default::default());
+    let mut config = uarte::Config::default();
+    config.parity = uarte::Parity::EXCLUDED;
+    config.baudrate = uarte::Baudrate::BAUD9600;
+
+    let uarte = Uarte::new(
+        &mut peri!(p, UART0),
+        irqs!(UART0),
+        &mut peri!(p, PIN_A),
+        &mut peri!(p, PIN_B),
+        config.clone(),
+    );
+    let (mut tx, mut rx) = uarte.split();
+
+    let data = [
+        0x42, 0x43, 0x44, 0x45, 0x66, 0x12, 0x23, 0x34, 0x45, 0x19, 0x91, 0xaa, 0xff, 0xa5, 0x5a, 0x77,
+    ];
+
+    let tx_fut = async {
+        Timer::after_millis(10).await;
+        tx.write(&data).await.unwrap();
+    };
+    let rx_fut = async {
+        let mut buf = [0u8; 16];
+        rx.read(&mut buf).await.unwrap();
+        assert_eq!(data, buf);
+    };
+    join(rx_fut, tx_fut).await;
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}