Merge #734 #735

734: executor: Add `Spawner::for_current_executor`. r=Dirbaio a=Dirbaio

This is needed to spawn non-Send tasks in an InterruptExecutor, after the fixes in #730 .

`@matoushybl` could you check if this works for your use case?

735: stm32: add stm32u5 GPDMA, SPIv4 support, add HIL tests. r=Dirbaio a=Dirbaio



Co-authored-by: Dario Nieuwenhuis <dirbaio@dirbaio.net>

examples/nrf/src/bin/self_spawn_current_executor.rs

@@ -0,0 +1,24 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::{info, unwrap};
+use embassy::executor::Spawner;
+use embassy::time::{Duration, Timer};
+use embassy_nrf::Peripherals;
+
+use defmt_rtt as _; // global logger
+use panic_probe as _;
+
+#[embassy::task(pool_size = 2)]
+async fn my_task(n: u32) {
+    Timer::after(Duration::from_secs(1)).await;
+    info!("Spawning self! {}", n);
+    unwrap!(Spawner::for_current_executor().await.spawn(my_task(n + 1)));
+}
+
+#[embassy::main]
+async fn main(spawner: Spawner, _p: Peripherals) {
+    info!("Hello World!");
+    unwrap!(spawner.spawn(my_task(0)));
+}

examples/stm32u5/src/bin/blinky.rs

@@ -0,0 +1,29 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use defmt_rtt as _;
+use embassy::executor::Spawner;
+use embassy::time::{Duration, Timer};
+use embassy_stm32::gpio::{Level, Output, Speed};
+use embassy_stm32::Peripherals;
+// global logger
+use panic_probe as _;
+
+#[embassy::main]
+async fn main(_spawner: Spawner, p: Peripherals) -> ! {
+    info!("Hello World!");
+
+    let mut led = Output::new(p.PH7, Level::Low, Speed::Medium);
+
+    loop {
+        defmt::info!("on!");
+        led.set_low();
+        Timer::after(Duration::from_millis(200)).await;
+
+        defmt::info!("off!");
+        led.set_high();
+        Timer::after(Duration::from_millis(200)).await;
+    }
+}