rename `rp23` (?) folder to `rp235x`; fix `ci.sh` to use `rp235x` folder

1 files changed, 66 insertions, 0 deletions

diff --git a/examples/rp235x/src/bin/multicore.rs b/examples/rp235x/src/bin/multicore.rs
new file mode 100644
index 000000000..7cb546c91
--- /dev/null
+++ b/examples/rp235x/src/bin/multicore.rs
@@ -0,0 +1,66 @@
+//! This example shows how to send messages between the two cores in the RP2040 chip.
+//!
+//! The LED on the RP Pico W board is connected differently. See wifi_blinky.rs.
+
+#![no_std]
+#![no_main]
+
+use defmt::*;
+use embassy_executor::Executor;
+use embassy_rp::gpio::{Level, Output};
+use embassy_rp::multicore::{spawn_core1, Stack};
+use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
+use embassy_sync::channel::Channel;
+use embassy_time::Timer;
+use static_cell::StaticCell;
+use {defmt_rtt as _, panic_probe as _};
+
+static mut CORE1_STACK: Stack<4096> = Stack::new();
+static EXECUTOR0: StaticCell<Executor> = StaticCell::new();
+static EXECUTOR1: StaticCell<Executor> = StaticCell::new();
+static CHANNEL: Channel<CriticalSectionRawMutex, LedState, 1> = Channel::new();
+
+enum LedState {
+    On,
+    Off,
+}
+
+#[cortex_m_rt::entry]
+fn main() -> ! {
+    let p = embassy_rp::init(Default::default());
+    let led = Output::new(p.PIN_25, Level::Low);
+
+    spawn_core1(
+        p.CORE1,
+        unsafe { &mut *core::ptr::addr_of_mut!(CORE1_STACK) },
+        move || {
+            let executor1 = EXECUTOR1.init(Executor::new());
+            executor1.run(|spawner| unwrap!(spawner.spawn(core1_task(led))));
+        },
+    );
+
+    let executor0 = EXECUTOR0.init(Executor::new());
+    executor0.run(|spawner| unwrap!(spawner.spawn(core0_task())));
+}
+
+#[embassy_executor::task]
+async fn core0_task() {
+    info!("Hello from core 0");
+    loop {
+        CHANNEL.send(LedState::On).await;
+        Timer::after_millis(100).await;
+        CHANNEL.send(LedState::Off).await;
+        Timer::after_millis(400).await;
+    }
+}
+
+#[embassy_executor::task]
+async fn core1_task(mut led: Output<'static>) {
+    info!("Hello from core 1");
+    loop {
+        match CHANNEL.receive().await {
+            LedState::On => led.set_high(),
+            LedState::Off => led.set_low(),
+        }
+    }
+}