Add stm32u0 support.

3 files changed, 75 insertions, 0 deletions

diff --git a/examples/stm32u0/src/bin/blinky.rs b/examples/stm32u0/src/bin/blinky.rs
new file mode 100644
index 000000000..90e479aae
--- /dev/null
+++ b/examples/stm32u0/src/bin/blinky.rs
@@ -0,0 +1,26 @@
+#![no_std]
+#![no_main]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::gpio::{Level, Output, Speed};
+use embassy_time::Timer;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
+    info!("Hello World!");
+
+    let mut led = Output::new(p.PA5, Level::High, Speed::Low);
+
+    loop {
+        info!("high");
+        led.set_high();
+        Timer::after_millis(300).await;
+
+        info!("low");
+        led.set_low();
+        Timer::after_millis(300).await;
+    }
+}
diff --git a/examples/stm32u0/src/bin/button.rs b/examples/stm32u0/src/bin/button.rs
new file mode 100644
index 000000000..8017f0274
--- /dev/null
+++ b/examples/stm32u0/src/bin/button.rs
@@ -0,0 +1,24 @@
+#![no_std]
+#![no_main]
+
+use cortex_m_rt::entry;
+use defmt::*;
+use embassy_stm32::gpio::{Input, Pull};
+use {defmt_rtt as _, panic_probe as _};
+
+#[entry]
+fn main() -> ! {
+    info!("Hello World!");
+
+    let p = embassy_stm32::init(Default::default());
+
+    let button = Input::new(p.PC13, Pull::Up);
+
+    loop {
+        if button.is_high() {
+            info!("high");
+        } else {
+            info!("low");
+        }
+    }
+}
diff --git a/examples/stm32u0/src/bin/button_exti.rs b/examples/stm32u0/src/bin/button_exti.rs
new file mode 100644
index 000000000..34a08bbc6
--- /dev/null
+++ b/examples/stm32u0/src/bin/button_exti.rs
@@ -0,0 +1,25 @@
+#![no_std]
+#![no_main]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::exti::ExtiInput;
+use embassy_stm32::gpio::Pull;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
+    info!("Hello World!");
+
+    let mut button = ExtiInput::new(p.PC13, p.EXTI13, Pull::Up);
+
+    info!("Press the USER button...");
+
+    loop {
+        button.wait_for_falling_edge().await;
+        info!("Pressed!");
+        button.wait_for_rising_edge().await;
+        info!("Released!");
+    }
+}