tests/nrf: unify, add nrf52832, nrf52833, nrf5340, nrf9160

tests/nrf/.cargo/config.toml

@@ -0,0 +1,11 @@
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+#runner = "teleprobe local run --chip nRF52840_xxAA --elf"
+runner = "teleprobe client run"
+
+[build]
+#target = "thumbv6m-none-eabi"
+target = "thumbv7em-none-eabi"
+#target = "thumbv8m.main-none-eabihf"
+
+[env]
+DEFMT_LOG = "trace,embassy_hal_internal=debug,embassy_net_esp_hosted=debug,smoltcp=info"

tests/nrf/Cargo.toml

@@ -0,0 +1,98 @@
+[package]
+edition = "2021"
+name = "embassy-nrf-examples"
+version = "0.1.0"
+license = "MIT OR Apache-2.0"
+
+[dependencies]
+teleprobe-meta = "1"
+
+embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
+embassy-sync = { version = "0.6.0", path = "../../embassy-sync", features = ["defmt", ] }
+embassy-executor = { version = "0.5.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "task-arena-size-16384", "integrated-timers"] }
+embassy-time = { version = "0.3.1", path = "../../embassy-time", features = ["defmt",  "defmt-timestamp-uptime"] }
+embassy-nrf = { version = "0.1.0", path = "../../embassy-nrf", features = ["defmt",  "time-driver-rtc1", "gpiote", "unstable-pac"] }
+embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
+embassy-net = { version = "0.4.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", ] }
+embassy-net-esp-hosted = { version = "0.1.0", path = "../../embassy-net-esp-hosted", features = ["defmt"] }
+embassy-net-enc28j60 = { version = "0.1.0", path = "../../embassy-net-enc28j60", features = ["defmt"] }
+embedded-hal-async = { version = "1.0" }
+embedded-hal-bus = { version = "0.1", features = ["async"] }
+static_cell = "2"
+perf-client = { path = "../perf-client" }
+
+defmt = "0.3"
+defmt-rtt = "0.4"
+
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
+cortex-m-rt = "0.7.0"
+panic-probe = { version = "0.3", features = ["print-defmt"] }
+portable-atomic = { version = "1.6.0" }
+
+[features]
+nrf51422 = ["embassy-nrf/nrf51", "portable-atomic/unsafe-assume-single-core"]
+nrf52832 = ["embassy-nrf/nrf52832",      "easydma"]
+nrf52833 = ["embassy-nrf/nrf52833",      "easydma"]
+nrf52840 = ["embassy-nrf/nrf52840",      "easydma"]
+nrf5340  = ["embassy-nrf/nrf5340-app-s", "easydma"]
+nrf9160  = ["embassy-nrf/nrf9160-s",     "easydma"]
+
+easydma = []
+
+[profile.release]
+codegen-units = 1
+debug = 2
+debug-assertions = false
+incremental = false
+lto = "fat"
+opt-level = 's'
+overflow-checks = false
+
+# BEGIN TESTS
+# Generated by gen_test.py. DO NOT EDIT.
+[[bin]]
+name = "buffered_uart"
+path = "src/bin/buffered_uart.rs"
+required-features = [ "nrf52840",]
+
+[[bin]]
+name = "buffered_uart_full"
+path = "src/bin/buffered_uart_full.rs"
+required-features = [ "nrf52840",]
+
+[[bin]]
+name = "buffered_uart_halves"
+path = "src/bin/buffered_uart_halves.rs"
+required-features = [ "nrf52840",]
+
+[[bin]]
+name = "buffered_uart_spam"
+path = "src/bin/buffered_uart_spam.rs"
+required-features = [ "nrf52840",]
+
+[[bin]]
+name = "ethernet_enc28j60_perf"
+path = "src/bin/ethernet_enc28j60_perf.rs"
+required-features = [ "nrf52840",]
+
+[[bin]]
+name = "gpio"
+path = "src/bin/gpio.rs"
+required-features = []
+
+[[bin]]
+name = "gpiote"
+path = "src/bin/gpiote.rs"
+required-features = []
+
+[[bin]]
+name = "timer"
+path = "src/bin/timer.rs"
+required-features = []
+
+[[bin]]
+name = "wifi_esp_hosted_perf"
+path = "src/bin/wifi_esp_hosted_perf.rs"
+required-features = [ "nrf52840",]
+
+# END TESTS

tests/nrf/build.rs

@@ -0,0 +1,37 @@
+use std::error::Error;
+use std::path::PathBuf;
+use std::{env, fs};
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let out = PathBuf::from(env::var("OUT_DIR").unwrap());
+
+    // copy the right memory.x
+    #[cfg(feature = "nrf51422")]
+    let memory_x = include_bytes!("memory-nrf51422.x");
+    #[cfg(feature = "nrf52832")]
+    let memory_x = include_bytes!("memory-nrf52832.x");
+    #[cfg(feature = "nrf52833")]
+    let memory_x = include_bytes!("memory-nrf52833.x");
+    #[cfg(feature = "nrf52840")]
+    let memory_x = include_bytes!("memory-nrf52840.x");
+    #[cfg(feature = "nrf5340")]
+    let memory_x = include_bytes!("memory-nrf5340.x");
+    #[cfg(feature = "nrf9160")]
+    let memory_x = include_bytes!("memory-nrf9160.x");
+    fs::write(out.join("memory.x"), memory_x).unwrap();
+
+    // copy main linker script.
+    fs::write(out.join("link_ram.x"), include_bytes!("../link_ram_cortex_m.x")).unwrap();
+    println!("cargo:rustc-link-search={}", out.display());
+    println!("cargo:rerun-if-changed=link_ram.x");
+
+    println!("cargo:rustc-link-arg-bins=--nmagic");
+    #[cfg(feature = "nrf51422")]
+    println!("cargo:rustc-link-arg-bins=-Tlink.x");
+    #[cfg(not(feature = "nrf51422"))]
+    println!("cargo:rustc-link-arg-bins=-Tlink_ram.x");
+    println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
+    println!("cargo:rustc-link-arg-bins=-Tteleprobe.x");
+
+    Ok(())
+}

tests/nrf/gen_test.py

@@ -0,0 +1,44 @@
+import os
+import toml
+from glob import glob
+
+abspath = os.path.abspath(__file__)
+dname = os.path.dirname(abspath)
+os.chdir(dname)
+
+# ======= load test list
+tests = {}
+for f in sorted(glob('./src/bin/*.rs')):
+    name = os.path.splitext(os.path.basename(f))[0]
+    features = []
+    with open(f, 'r') as f:
+        for line in f:
+            if line.startswith('// required-features:'):
+                features = [feature.strip() for feature in line.split(':', 2)[1].strip().split(',')]
+
+    tests[name] = features
+
+# ========= Update Cargo.toml
+
+things = {
+    'bin': [
+        {
+            'name': f'{name}',
+            'path': f'src/bin/{name}.rs',
+            'required-features': features,
+        }
+        for name, features in tests.items()
+    ]
+}
+
+SEPARATOR_START = '# BEGIN TESTS\n'
+SEPARATOR_END = '# END TESTS\n'
+HELP = '# Generated by gen_test.py. DO NOT EDIT.\n'
+with open('Cargo.toml', 'r') as f:
+    data = f.read()
+before, data = data.split(SEPARATOR_START, maxsplit=1)
+_, after = data.split(SEPARATOR_END, maxsplit=1)
+data = before + SEPARATOR_START + HELP + \
+    toml.dumps(things) + SEPARATOR_END + after
+with open('Cargo.toml', 'w') as f:
+    f.write(data)

tests/nrf/memory-nrf51422.x

@@ -0,0 +1,5 @@
+MEMORY
+{
+  FLASH : ORIGIN = 0x00000000, LENGTH = 256K
+  RAM : ORIGIN = 0x20000000, LENGTH = 32K
+}

tests/nrf/memory-nrf52832.x

@@ -0,0 +1,5 @@
+MEMORY
+{
+  FLASH : ORIGIN = 0x00000000, LENGTH = 256K
+  RAM : ORIGIN = 0x20000000, LENGTH = 32K
+}

tests/nrf/memory-nrf52833.x

@@ -0,0 +1,5 @@
+MEMORY
+{
+  FLASH : ORIGIN = 0x00000000, LENGTH = 512K
+  RAM : ORIGIN = 0x20000000, LENGTH = 64K
+}

tests/nrf/memory-nrf52840.x

@@ -0,0 +1,5 @@
+MEMORY
+{
+  FLASH : ORIGIN = 0x00000000, LENGTH = 1024K
+  RAM : ORIGIN = 0x20000000, LENGTH = 256K
+}

tests/nrf/memory-nrf5340.x

@@ -0,0 +1,5 @@
+MEMORY
+{
+  FLASH : ORIGIN = 0x00000000, LENGTH = 1024K
+  RAM : ORIGIN = 0x20000000, LENGTH = 256K
+}

tests/nrf/memory-nrf9160.x

@@ -0,0 +1,5 @@
+MEMORY
+{
+  FLASH : ORIGIN = 0x00000000, LENGTH = 1024K
+  RAM : ORIGIN = 0x20000000, LENGTH = 256K
+}

tests/nrf/src/bin/buffered_uart.rs

@@ -0,0 +1,82 @@
+// required-features: nrf52840
+#![no_std]
+#![no_main]
+teleprobe_meta::target!(b"nrf52840-dk");
+
+use defmt::{assert_eq, *};
+use embassy_executor::Spawner;
+use embassy_futures::join::join;
+use embassy_nrf::buffered_uarte::{self, BufferedUarte};
+use embassy_nrf::{bind_interrupts, peripherals, uarte};
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    UARTE0_UART0 => buffered_uarte::InterruptHandler<peripherals::UARTE0>;
+});
+
+#[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_buffer = [0u8; 1024];
+    let mut rx_buffer = [0u8; 1024];
+
+    // test teardown + recreate of the buffereduarte works fine.
+    for _ in 0..2 {
+        let u = BufferedUarte::new(
+            &mut p.UARTE0,
+            &mut p.TIMER0,
+            &mut p.PPI_CH0,
+            &mut p.PPI_CH1,
+            &mut p.PPI_GROUP0,
+            Irqs,
+            &mut p.P1_03,
+            &mut p.P1_02,
+            config.clone(),
+            &mut rx_buffer,
+            &mut tx_buffer,
+        );
+
+        info!("uarte initialized!");
+
+        let (mut rx, mut tx) = u.split();
+
+        const COUNT: usize = 40_000;
+
+        let tx_fut = async {
+            let mut tx_buf = [0; 215];
+            let mut i = 0;
+            while i < COUNT {
+                let n = tx_buf.len().min(COUNT - i);
+                let tx_buf = &mut tx_buf[..n];
+                for (j, b) in tx_buf.iter_mut().enumerate() {
+                    *b = (i + j) as u8;
+                }
+                let n = unwrap!(tx.write(tx_buf).await);
+                i += n;
+            }
+        };
+        let rx_fut = async {
+            let mut i = 0;
+            while i < COUNT {
+                let buf = unwrap!(rx.fill_buf().await);
+
+                for &b in buf {
+                    assert_eq!(b, i as u8);
+                    i = i + 1;
+                }
+
+                let n = buf.len();
+                rx.consume(n);
+            }
+        };
+
+        join(rx_fut, tx_fut).await;
+    }
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/bin/buffered_uart_full.rs

@@ -0,0 +1,72 @@
+// required-features: nrf52840
+#![no_std]
+#![no_main]
+teleprobe_meta::target!(b"nrf52840-dk");
+
+use defmt::{assert_eq, *};
+use embassy_executor::Spawner;
+use embassy_nrf::buffered_uarte::{self, BufferedUarte};
+use embassy_nrf::{bind_interrupts, peripherals, uarte};
+use embedded_io_async::{Read, Write};
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    UARTE0_UART0 => buffered_uarte::InterruptHandler<peripherals::UARTE0>;
+});
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let 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_buffer = [0u8; 1024];
+    let mut rx_buffer = [0u8; 1024];
+
+    let u = BufferedUarte::new(
+        p.UARTE0,
+        p.TIMER0,
+        p.PPI_CH0,
+        p.PPI_CH1,
+        p.PPI_GROUP0,
+        Irqs,
+        p.P1_03,
+        p.P1_02,
+        config.clone(),
+        &mut rx_buffer,
+        &mut tx_buffer,
+    );
+
+    info!("uarte initialized!");
+
+    let (mut rx, mut tx) = u.split();
+
+    let mut buf = [0; 1024];
+    for (j, b) in buf.iter_mut().enumerate() {
+        *b = j as u8;
+    }
+
+    // Write 1024b. This causes the rx buffer to get exactly full.
+    unwrap!(tx.write_all(&buf).await);
+    unwrap!(tx.flush().await);
+
+    // Read those 1024b.
+    unwrap!(rx.read_exact(&mut buf).await);
+    for (j, b) in buf.iter().enumerate() {
+        assert_eq!(*b, j as u8);
+    }
+
+    // The buffer should now be unclogged. Write 1024b again.
+    unwrap!(tx.write_all(&buf).await);
+    unwrap!(tx.flush().await);
+
+    // Read should work again.
+    unwrap!(rx.read_exact(&mut buf).await);
+    for (j, b) in buf.iter().enumerate() {
+        assert_eq!(*b, j as u8);
+    }
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/bin/buffered_uart_halves.rs

@@ -0,0 +1,83 @@
+// required-features: nrf52840
+#![no_std]
+#![no_main]
+teleprobe_meta::target!(b"nrf52840-dk");
+
+use defmt::{assert_eq, *};
+use embassy_executor::Spawner;
+use embassy_futures::join::join;
+use embassy_nrf::buffered_uarte::{self, BufferedUarteRx, BufferedUarteTx};
+use embassy_nrf::{bind_interrupts, peripherals, uarte};
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    UARTE0_UART0 => buffered_uarte::InterruptHandler<peripherals::UARTE0>;
+    UARTE1 => buffered_uarte::InterruptHandler<peripherals::UARTE1>;
+});
+
+#[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_buffer = [0u8; 1024];
+    let mut rx_buffer = [0u8; 1024];
+
+    // test teardown + recreate of the buffereduarte works fine.
+    for _ in 0..2 {
+        const COUNT: usize = 40_000;
+
+        let mut tx = BufferedUarteTx::new(&mut p.UARTE1, Irqs, &mut p.P1_02, config.clone(), &mut tx_buffer);
+
+        let mut rx = BufferedUarteRx::new(
+            &mut p.UARTE0,
+            &mut p.TIMER0,
+            &mut p.PPI_CH0,
+            &mut p.PPI_CH1,
+            &mut p.PPI_GROUP0,
+            Irqs,
+            &mut p.P1_03,
+            config.clone(),
+            &mut rx_buffer,
+        );
+
+        let tx_fut = async {
+            info!("tx initialized!");
+
+            let mut tx_buf = [0; 215];
+            let mut i = 0;
+            while i < COUNT {
+                let n = tx_buf.len().min(COUNT - i);
+                let tx_buf = &mut tx_buf[..n];
+                for (j, b) in tx_buf.iter_mut().enumerate() {
+                    *b = (i + j) as u8;
+                }
+                let n = unwrap!(tx.write(tx_buf).await);
+                i += n;
+            }
+        };
+        let rx_fut = async {
+            info!("rx initialized!");
+
+            let mut i = 0;
+            while i < COUNT {
+                let buf = unwrap!(rx.fill_buf().await);
+
+                for &b in buf {
+                    assert_eq!(b, i as u8);
+                    i = i + 1;
+                }
+
+                let n = buf.len();
+                rx.consume(n);
+            }
+        };
+
+        join(rx_fut, tx_fut).await;
+    }
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/bin/buffered_uart_spam.rs

@@ -0,0 +1,92 @@
+// required-features: nrf52840
+#![no_std]
+#![no_main]
+teleprobe_meta::target!(b"nrf52840-dk");
+
+use core::mem;
+use core::ptr::NonNull;
+
+use defmt::{assert_eq, *};
+use embassy_executor::Spawner;
+use embassy_nrf::buffered_uarte::{self, BufferedUarte};
+use embassy_nrf::gpio::{Level, Output, OutputDrive};
+use embassy_nrf::ppi::{Event, Ppi, Task};
+use embassy_nrf::uarte::Uarte;
+use embassy_nrf::{bind_interrupts, pac, peripherals, uarte};
+use embassy_time::Timer;
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    UARTE0_UART0 => buffered_uarte::InterruptHandler<peripherals::UARTE0>;
+    UARTE1 => uarte::InterruptHandler<peripherals::UARTE1>;
+});
+
+#[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_buffer = [0u8; 1024];
+    let mut rx_buffer = [0u8; 1024];
+
+    mem::forget(Output::new(&mut p.P1_02, Level::High, OutputDrive::Standard));
+
+    let mut u = BufferedUarte::new(
+        p.UARTE0,
+        p.TIMER0,
+        p.PPI_CH0,
+        p.PPI_CH1,
+        p.PPI_GROUP0,
+        Irqs,
+        p.P1_03,
+        p.P1_04,
+        config.clone(),
+        &mut rx_buffer,
+        &mut tx_buffer,
+    );
+
+    info!("uarte initialized!");
+
+    // uarte needs some quiet time to start rxing properly.
+    Timer::after_millis(10).await;
+
+    // Tx spam in a loop.
+    const NSPAM: usize = 17;
+    static mut TX_BUF: [u8; NSPAM] = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16];
+    let _spam = Uarte::new(p.UARTE1, Irqs, p.P1_01, p.P1_02, config.clone());
+    let spam_peri: pac::UARTE1 = unsafe { mem::transmute(()) };
+    let event = unsafe { Event::new_unchecked(NonNull::new_unchecked(&spam_peri.events_endtx as *const _ as _)) };
+    let task = unsafe { Task::new_unchecked(NonNull::new_unchecked(&spam_peri.tasks_starttx as *const _ as _)) };
+    let mut spam_ppi = Ppi::new_one_to_one(p.PPI_CH2, event, task);
+    spam_ppi.enable();
+    let p = unsafe { TX_BUF.as_mut_ptr() };
+    spam_peri.txd.ptr.write(|w| unsafe { w.ptr().bits(p as u32) });
+    spam_peri.txd.maxcnt.write(|w| unsafe { w.maxcnt().bits(NSPAM as _) });
+    spam_peri.tasks_starttx.write(|w| unsafe { w.bits(1) });
+
+    let mut i = 0;
+    let mut total = 0;
+    while total < 256 * 1024 {
+        let buf = unwrap!(u.fill_buf().await);
+        //info!("rx {}", buf);
+
+        for &b in buf {
+            assert_eq!(b, unsafe { TX_BUF[i] });
+
+            i = i + 1;
+            if i == NSPAM {
+                i = 0;
+            }
+        }
+
+        // Read bytes have to be explicitly consumed, otherwise fill_buf() will return them again
+        let n = buf.len();
+        u.consume(n);
+        total += n;
+    }
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/bin/ethernet_enc28j60_perf.rs

@@ -0,0 +1,91 @@
+// required-features: nrf52840
+#![no_std]
+#![no_main]
+teleprobe_meta::target!(b"ak-gwe-r7");
+teleprobe_meta::timeout!(120);
+
+use defmt::{info, unwrap};
+use embassy_executor::Spawner;
+use embassy_net::{Stack, StackResources};
+use embassy_net_enc28j60::Enc28j60;
+use embassy_nrf::gpio::{Level, Output, OutputDrive};
+use embassy_nrf::rng::Rng;
+use embassy_nrf::spim::{self, Spim};
+use embassy_nrf::{bind_interrupts, peripherals};
+use embassy_time::Delay;
+use embedded_hal_bus::spi::ExclusiveDevice;
+use static_cell::StaticCell;
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    SPIM3 => spim::InterruptHandler<peripherals::SPI3>;
+    RNG => embassy_nrf::rng::InterruptHandler<peripherals::RNG>;
+});
+
+type MyDriver = Enc28j60<ExclusiveDevice<Spim<'static, peripherals::SPI3>, Output<'static>, Delay>, Output<'static>>;
+
+#[embassy_executor::task]
+async fn net_task(stack: &'static Stack<MyDriver>) -> ! {
+    stack.run().await
+}
+
+#[embassy_executor::main]
+async fn main(spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
+    info!("running!");
+
+    let eth_sck = p.P0_20;
+    let eth_mosi = p.P0_22;
+    let eth_miso = p.P0_24;
+    let eth_cs = p.P0_15;
+    let eth_rst = p.P0_13;
+    let _eth_irq = p.P0_12;
+
+    let mut config = spim::Config::default();
+    config.frequency = spim::Frequency::M16;
+    let spi = spim::Spim::new(p.SPI3, Irqs, eth_sck, eth_miso, eth_mosi, config);
+    let cs = Output::new(eth_cs, Level::High, OutputDrive::Standard);
+    let spi = ExclusiveDevice::new(spi, cs, Delay);
+
+    let rst = Output::new(eth_rst, Level::High, OutputDrive::Standard);
+    let mac_addr = [2, 3, 4, 5, 6, 7];
+    let device = Enc28j60::new(spi, Some(rst), mac_addr);
+
+    let config = embassy_net::Config::dhcpv4(Default::default());
+    // let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
+    //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
+    //    dns_servers: Vec::new(),
+    //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
+    // });
+
+    // Generate random seed
+    let mut rng = Rng::new(p.RNG, Irqs);
+    let mut seed = [0; 8];
+    rng.blocking_fill_bytes(&mut seed);
+    let seed = u64::from_le_bytes(seed);
+
+    // Init network stack
+    static STACK: StaticCell<Stack<MyDriver>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
+        device,
+        config,
+        RESOURCES.init(StackResources::<2>::new()),
+        seed,
+    ));
+
+    unwrap!(spawner.spawn(net_task(stack)));
+
+    perf_client::run(
+        stack,
+        perf_client::Expected {
+            down_kbps: 200,
+            up_kbps: 200,
+            updown_kbps: 150,
+        },
+    )
+    .await;
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/bin/gpio.rs

@@ -0,0 +1,29 @@
+#![no_std]
+#![no_main]
+
+#[path = "../common.rs"]
+mod common;
+
+use defmt::{assert, info};
+use embassy_executor::Spawner;
+use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull};
+use embassy_time::Timer;
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
+
+    let input = Input::new(peri!(p, PIN_A), Pull::Up);
+    let mut output = Output::new(peri!(p, PIN_B), Level::Low, OutputDrive::Standard);
+
+    output.set_low();
+    Timer::after_millis(10).await;
+    assert!(input.is_low());
+
+    output.set_high();
+    Timer::after_millis(10).await;
+    assert!(input.is_high());
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/bin/gpiote.rs

@@ -0,0 +1,50 @@
+#![no_std]
+#![no_main]
+
+#[path = "../common.rs"]
+mod common;
+
+use defmt::{assert, info};
+use embassy_executor::Spawner;
+use embassy_futures::join::join;
+use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull};
+use embassy_time::{Duration, Instant, Timer};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
+
+    let mut input = Input::new(peri!(p, PIN_A), Pull::Up);
+    let mut output = Output::new(peri!(p, PIN_B), Level::Low, OutputDrive::Standard);
+
+    let fut1 = async {
+        Timer::after_millis(100).await;
+        output.set_high();
+    };
+    let fut2 = async {
+        let start = Instant::now();
+        input.wait_for_high().await;
+        let dur = Instant::now() - start;
+        info!("took {} ms", dur.as_millis());
+        assert!((Duration::from_millis(90)..Duration::from_millis(110)).contains(&dur));
+    };
+
+    join(fut1, fut2).await;
+
+    let fut1 = async {
+        Timer::after_millis(100).await;
+        output.set_low();
+    };
+    let fut2 = async {
+        let start = Instant::now();
+        input.wait_for_low().await;
+        let dur = Instant::now() - start;
+        info!("took {} ms", dur.as_millis());
+        assert!((Duration::from_millis(90)..Duration::from_millis(110)).contains(&dur));
+    };
+
+    join(fut1, fut2).await;
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/bin/timer.rs

@@ -0,0 +1,26 @@
+#![no_std]
+#![no_main]
+
+#[path = "../common.rs"]
+mod common;
+
+use defmt::{assert, info};
+use embassy_executor::Spawner;
+use embassy_time::{Instant, Timer};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let _p = embassy_nrf::init(Default::default());
+    info!("Hello World!");
+
+    let start = Instant::now();
+    Timer::after_millis(100).await;
+    let end = Instant::now();
+    let ms = (end - start).as_millis();
+    info!("slept for {} ms", ms);
+    assert!(ms >= 99);
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/bin/wifi_esp_hosted_perf.rs

@@ -0,0 +1,112 @@
+// required-features: nrf52840
+#![no_std]
+#![no_main]
+teleprobe_meta::target!(b"nrf52840-dk");
+teleprobe_meta::timeout!(120);
+
+use defmt::{info, unwrap};
+use embassy_executor::Spawner;
+use embassy_net::{Config, Stack, StackResources};
+use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull};
+use embassy_nrf::rng::Rng;
+use embassy_nrf::spim::{self, Spim};
+use embassy_nrf::{bind_interrupts, peripherals};
+use embassy_time::Delay;
+use embedded_hal_bus::spi::ExclusiveDevice;
+use static_cell::StaticCell;
+use {defmt_rtt as _, embassy_net_esp_hosted as hosted, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    SPIM3 => spim::InterruptHandler<peripherals::SPI3>;
+    RNG => embassy_nrf::rng::InterruptHandler<peripherals::RNG>;
+});
+
+// Test-only wifi network, no internet access!
+const WIFI_NETWORK: &str = "EmbassyTest";
+const WIFI_PASSWORD: &str = "V8YxhKt5CdIAJFud";
+
+#[embassy_executor::task]
+async fn wifi_task(
+    runner: hosted::Runner<
+        'static,
+        ExclusiveDevice<Spim<'static, peripherals::SPI3>, Output<'static>, Delay>,
+        Input<'static>,
+        Output<'static>,
+    >,
+) -> ! {
+    runner.run().await
+}
+
+type MyDriver = hosted::NetDriver<'static>;
+
+#[embassy_executor::task]
+async fn net_task(stack: &'static Stack<MyDriver>) -> ! {
+    stack.run().await
+}
+
+#[embassy_executor::main]
+async fn main(spawner: Spawner) {
+    info!("Hello World!");
+
+    let p = embassy_nrf::init(Default::default());
+
+    let miso = p.P0_28;
+    let sck = p.P0_29;
+    let mosi = p.P0_30;
+    let cs = Output::new(p.P0_31, Level::High, OutputDrive::HighDrive);
+    let handshake = Input::new(p.P1_01, Pull::Up);
+    let ready = Input::new(p.P1_04, Pull::None);
+    let reset = Output::new(p.P1_05, Level::Low, OutputDrive::Standard);
+
+    let mut config = spim::Config::default();
+    config.frequency = spim::Frequency::M32;
+    config.mode = spim::MODE_2; // !!!
+    let spi = spim::Spim::new(p.SPI3, Irqs, sck, miso, mosi, config);
+    let spi = ExclusiveDevice::new(spi, cs, Delay);
+
+    static STATE: StaticCell<embassy_net_esp_hosted::State> = StaticCell::new();
+    let (device, mut control, runner) = embassy_net_esp_hosted::new(
+        STATE.init(embassy_net_esp_hosted::State::new()),
+        spi,
+        handshake,
+        ready,
+        reset,
+    )
+    .await;
+
+    unwrap!(spawner.spawn(wifi_task(runner)));
+
+    unwrap!(control.init().await);
+    unwrap!(control.connect(WIFI_NETWORK, WIFI_PASSWORD).await);
+
+    // Generate random seed
+    let mut rng = Rng::new(p.RNG, Irqs);
+    let mut seed = [0; 8];
+    rng.blocking_fill_bytes(&mut seed);
+    let seed = u64::from_le_bytes(seed);
+
+    // Init network stack
+    static STACK: StaticCell<Stack<MyDriver>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
+        device,
+        Config::dhcpv4(Default::default()),
+        RESOURCES.init(StackResources::<2>::new()),
+        seed,
+    ));
+
+    unwrap!(spawner.spawn(net_task(stack)));
+
+    perf_client::run(
+        stack,
+        perf_client::Expected {
+            down_kbps: 50,
+            up_kbps: 50,
+            updown_kbps: 50,
+        },
+    )
+    .await;
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}

tests/nrf/src/common.rs

@@ -0,0 +1,65 @@
+#![macro_use]
+
+use {defmt_rtt as _, panic_probe as _};
+
+#[cfg(feature = "nrf52832")]
+teleprobe_meta::target!(b"nrf52832-dk");
+#[cfg(feature = "nrf52840")]
+teleprobe_meta::target!(b"nrf52840-dk");
+#[cfg(feature = "nrf52833")]
+teleprobe_meta::target!(b"nrf52833-dk");
+#[cfg(feature = "nrf5340")]
+teleprobe_meta::target!(b"nrf5340-dk");
+#[cfg(feature = "nrf9160")]
+teleprobe_meta::target!(b"nrf9160-dk");
+#[cfg(feature = "nrf51422")]
+teleprobe_meta::target!(b"nrf51-dk");
+
+macro_rules! define_peris {
+    ($($name:ident = $peri:ident,)* $(@irq $irq_name:ident = $irq_code:tt,)*) => {
+        #[allow(unused_macros)]
+        macro_rules! peri {
+            $(
+                ($p:expr, $name) => {
+                    $p.$peri
+                };
+            )*
+        }
+        #[allow(unused_macros)]
+        macro_rules! irqs {
+            $(
+                ($irq_name) => {{
+                    embassy_nrf::bind_interrupts!(struct Irqs $irq_code);
+                    Irqs
+                }};
+            )*
+            ( @ dummy ) => {};
+        }
+
+        #[allow(unused)]
+        #[allow(non_camel_case_types)]
+        pub mod peris {
+            $(
+                pub type $name = embassy_nrf::peripherals::$peri;
+            )*
+        }
+    };
+}
+
+#[cfg(feature = "nrf51422")]
+define_peris!(PIN_A = P0_13, PIN_B = P0_14,);
+
+#[cfg(feature = "nrf52832")]
+define_peris!(PIN_A = P0_11, PIN_B = P0_12,);
+
+#[cfg(feature = "nrf52833")]
+define_peris!(PIN_A = P1_01, PIN_B = P1_02,);
+
+#[cfg(feature = "nrf52840")]
+define_peris!(PIN_A = P1_02, PIN_B = P1_03,);
+
+#[cfg(feature = "nrf5340")]
+define_peris!(PIN_A = P1_00, PIN_B = P1_01,);
+
+#[cfg(feature = "nrf9160")]
+define_peris!(PIN_A = P0_00, PIN_B = P0_01,);