66 files changed, 893 insertions, 215 deletions

diff --git a/examples/boot/application/nrf/Cargo.toml b/examples/boot/application/nrf/Cargo.toml
index 888993255..e75c73cbd 100644
--- a/examples/boot/application/nrf/Cargo.toml
+++ b/examples/boot/application/nrf/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers", "arch-cortex-m", "executor-thread"] }
 embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly"] }
 embassy-nrf = { version = "0.1.0", path = "../../../../embassy-nrf", features = ["time-driver-rtc1", "gpiote", "nightly"] }
 embassy-boot = { version = "0.1.0", path = "../../../../embassy-boot/boot" }
diff --git a/examples/boot/application/rp/Cargo.toml b/examples/boot/application/rp/Cargo.toml
index 8d826790b..8de2d2ebd 100644
--- a/examples/boot/application/rp/Cargo.toml
+++ b/examples/boot/application/rp/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers", "arch-cortex-m", "executor-thread"] }
 embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly"] }
 embassy-rp = { version = "0.1.0", path = "../../../../embassy-rp", features = ["time-driver", "unstable-traits", "nightly"] }
 embassy-boot-rp = { version = "0.1.0", path = "../../../../embassy-boot/rp" }
diff --git a/examples/boot/application/stm32f3/Cargo.toml b/examples/boot/application/stm32f3/Cargo.toml
index aa279fb76..083607de5 100644
--- a/examples/boot/application/stm32f3/Cargo.toml
+++ b/examples/boot/application/stm32f3/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["unstable-traits", "nightly", "stm32f303re", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32" }
diff --git a/examples/boot/application/stm32f7/Cargo.toml b/examples/boot/application/stm32f7/Cargo.toml
index 1ec0643a6..74f508515 100644
--- a/examples/boot/application/stm32f7/Cargo.toml
+++ b/examples/boot/application/stm32f7/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["unstable-traits", "nightly", "stm32f767zi", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32" }
diff --git a/examples/boot/application/stm32h7/Cargo.toml b/examples/boot/application/stm32h7/Cargo.toml
index a4eefe2a5..898b9a47e 100644
--- a/examples/boot/application/stm32h7/Cargo.toml
+++ b/examples/boot/application/stm32h7/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["unstable-traits", "nightly", "stm32h743zi", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32" }
diff --git a/examples/boot/application/stm32l0/Cargo.toml b/examples/boot/application/stm32l0/Cargo.toml
index 36eada29b..e142c8481 100644
--- a/examples/boot/application/stm32l0/Cargo.toml
+++ b/examples/boot/application/stm32l0/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["unstable-traits", "nightly", "stm32l072cz", "time-driver-any", "exti", "memory-x"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32" }
diff --git a/examples/boot/application/stm32l1/Cargo.toml b/examples/boot/application/stm32l1/Cargo.toml
index 67efda748..f0e92e1ac 100644
--- a/examples/boot/application/stm32l1/Cargo.toml
+++ b/examples/boot/application/stm32l1/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["unstable-traits", "nightly", "stm32l151cb-a", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32" }
diff --git a/examples/boot/application/stm32l4/Cargo.toml b/examples/boot/application/stm32l4/Cargo.toml
index 4b2e02dd2..87689e9a9 100644
--- a/examples/boot/application/stm32l4/Cargo.toml
+++ b/examples/boot/application/stm32l4/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["unstable-traits", "nightly", "stm32l475vg", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32" }
diff --git a/examples/boot/application/stm32wl/Cargo.toml b/examples/boot/application/stm32wl/Cargo.toml
index fecbfc51d..a6708bf51 100644
--- a/examples/boot/application/stm32wl/Cargo.toml
+++ b/examples/boot/application/stm32wl/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["unstable-traits", "nightly", "stm32wl55jc-cm4", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32" }
diff --git a/examples/boot/bootloader/nrf/src/main.rs b/examples/boot/bootloader/nrf/src/main.rs
index aca3b857a..8818a23b8 100644
--- a/examples/boot/bootloader/nrf/src/main.rs
+++ b/examples/boot/bootloader/nrf/src/main.rs
@@ -27,9 +27,11 @@ fn main() -> ! {
     wdt_config.run_during_sleep = true;
     wdt_config.run_during_debug_halt = false;
 
-    let start = bl.prepare(&mut SingleFlashConfig::new(&mut BootFlash::<_, 4096>::new(
-        WatchdogFlash::start(Nvmc::new(p.NVMC), p.WDT, wdt_config),
-    )));
+    let start = bl.prepare(&mut SingleFlashConfig::new(&mut BootFlash::new(WatchdogFlash::start(
+        Nvmc::new(p.NVMC),
+        p.WDT,
+        wdt_config,
+    ))));
     unsafe { bl.load(start) }
 }
 
diff --git a/examples/boot/bootloader/rp/src/main.rs b/examples/boot/bootloader/rp/src/main.rs
index fb7f0522b..8129591fa 100644
--- a/examples/boot/bootloader/rp/src/main.rs
+++ b/examples/boot/bootloader/rp/src/main.rs
@@ -5,7 +5,6 @@ use cortex_m_rt::{entry, exception};
 #[cfg(feature = "defmt")]
 use defmt_rtt as _;
 use embassy_boot_rp::*;
-use embassy_rp::flash::ERASE_SIZE;
 use embassy_time::Duration;
 
 const FLASH_SIZE: usize = 2 * 1024 * 1024;
@@ -24,7 +23,7 @@ fn main() -> ! {
 
     let mut bl: BootLoader = BootLoader::default();
     let flash = WatchdogFlash::<FLASH_SIZE>::start(p.FLASH, p.WATCHDOG, Duration::from_secs(8));
-    let mut flash = BootFlash::<_, ERASE_SIZE>::new(flash);
+    let mut flash = BootFlash::new(flash);
     let start = bl.prepare(&mut SingleFlashConfig::new(&mut flash));
     core::mem::drop(flash);
 
diff --git a/examples/boot/bootloader/stm32/src/main.rs b/examples/boot/bootloader/stm32/src/main.rs
index 4b17cd799..49c21920b 100644
--- a/examples/boot/bootloader/stm32/src/main.rs
+++ b/examples/boot/bootloader/stm32/src/main.rs
@@ -5,7 +5,7 @@ use cortex_m_rt::{entry, exception};
 #[cfg(feature = "defmt")]
 use defmt_rtt as _;
 use embassy_boot_stm32::*;
-use embassy_stm32::flash::{Flash, ERASE_SIZE, ERASE_VALUE, WRITE_SIZE};
+use embassy_stm32::flash::Flash;
 
 #[entry]
 fn main() -> ! {
@@ -19,9 +19,10 @@ fn main() -> ! {
         }
     */
 
-    let mut bl: BootLoader<ERASE_SIZE, WRITE_SIZE> = BootLoader::default();
+    let mut bl: BootLoader<2048> = BootLoader::default();
     let flash = Flash::new(p.FLASH);
-    let mut flash = BootFlash::<_, ERASE_SIZE, ERASE_VALUE>::new(flash);
+    let layout = flash.into_regions();
+    let mut flash = BootFlash::new(layout.bank1_region);
     let start = bl.prepare(&mut SingleFlashConfig::new(&mut flash));
     core::mem::drop(flash);
     unsafe { bl.load(start) }
diff --git a/examples/nrf-rtos-trace/Cargo.toml b/examples/nrf-rtos-trace/Cargo.toml
index d8c24dfad..7910b372a 100644
--- a/examples/nrf-rtos-trace/Cargo.toml
+++ b/examples/nrf-rtos-trace/Cargo.toml
@@ -17,7 +17,7 @@ log = [
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync" }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features=["rtos-trace", "rtos-trace-interrupt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "rtos-trace", "rtos-trace-interrupt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time" }
 embassy-nrf = { version = "0.1.0", path = "../../embassy-nrf", features = ["nrf52840", "time-driver-rtc1", "gpiote", "unstable-pac"] }
 
diff --git a/examples/nrf52840/Cargo.toml b/examples/nrf52840/Cargo.toml
index cc88d92c7..3ece24066 100644
--- a/examples/nrf52840/Cargo.toml
+++ b/examples/nrf52840/Cargo.toml
@@ -12,7 +12,7 @@ nightly = ["embassy-executor/nightly", "embassy-nrf/nightly", "embassy-net/night
 [dependencies]
 embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime"] }
 embassy-nrf = { version = "0.1.0", path = "../../embassy-nrf", features = ["defmt", "nrf52840", "time-driver-rtc1", "gpiote", "unstable-pac", "time"] }
 embassy-net = { version = "0.1.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet"], optional = true }
diff --git a/examples/nrf5340/Cargo.toml b/examples/nrf5340/Cargo.toml
index e88ddf2f7..4134db46f 100644
--- a/examples/nrf5340/Cargo.toml
+++ b/examples/nrf5340/Cargo.toml
@@ -9,7 +9,7 @@ embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = [
     "defmt",
 ] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = [
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", 
     "nightly",
     "defmt",
     "integrated-timers",
diff --git a/examples/rp/.cargo/config.toml b/examples/rp/.cargo/config.toml
index d1c8c1c5a..2ee6fcb00 100644
--- a/examples/rp/.cargo/config.toml
+++ b/examples/rp/.cargo/config.toml
@@ -1,5 +1,5 @@
 [target.'cfg(all(target_arch = "arm", target_os = "none"))']
-runner = "probe-run --chip RP2040"
+runner = "probe-rs-cli run --chip RP2040"
 
 [build]
 target = "thumbv6m-none-eabi"        # Cortex-M0 and Cortex-M0+
diff --git a/examples/rp/Cargo.toml b/examples/rp/Cargo.toml
index 1e8870ed7..63d0ac82a 100644
--- a/examples/rp/Cargo.toml
+++ b/examples/rp/Cargo.toml
@@ -6,8 +6,9 @@ license = "MIT OR Apache-2.0"
 
 
 [dependencies]
+embassy-embedded-hal = { version = "0.1.0", path = "../../embassy-embedded-hal", features = ["defmt"] }
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime"] }
 embassy-rp = { version = "0.1.0", path = "../../embassy-rp", features = ["defmt", "unstable-traits", "nightly", "unstable-pac", "time-driver", "pio", "critical-section-impl"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
@@ -30,8 +31,8 @@ display-interface = "0.4.1"
 byte-slice-cast = { version = "1.2.0", default-features = false }
 smart-leds = "0.3.0"
 
-embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-alpha.9" }
-embedded-hal-async = "0.2.0-alpha.0"
+embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-alpha.10" }
+embedded-hal-async = "0.2.0-alpha.1"
 embedded-io = { version = "0.4.0", features = ["async", "defmt"] }
 embedded-storage = { version = "0.3" }
 static_cell = "1.0.0"
diff --git a/examples/rp/src/bin/spi_display.rs b/examples/rp/src/bin/spi_display.rs
index 778cad3fa..85a19ce07 100644
--- a/examples/rp/src/bin/spi_display.rs
+++ b/examples/rp/src/bin/spi_display.rs
@@ -5,10 +5,13 @@
 use core::cell::RefCell;
 
 use defmt::*;
+use embassy_embedded_hal::shared_bus::blocking::spi::SpiDeviceWithConfig;
 use embassy_executor::Spawner;
 use embassy_rp::gpio::{Level, Output};
 use embassy_rp::spi;
 use embassy_rp::spi::{Blocking, Spi};
+use embassy_sync::blocking_mutex::raw::NoopRawMutex;
+use embassy_sync::blocking_mutex::Mutex;
 use embassy_time::Delay;
 use embedded_graphics::image::{Image, ImageRawLE};
 use embedded_graphics::mono_font::ascii::FONT_10X20;
@@ -21,10 +24,9 @@ use st7789::{Orientation, ST7789};
 use {defmt_rtt as _, panic_probe as _};
 
 use crate::my_display_interface::SPIDeviceInterface;
-use crate::shared_spi::SpiDeviceWithCs;
 use crate::touch::Touch;
 
-//const DISPLAY_FREQ: u32 = 64_000_000;
+const DISPLAY_FREQ: u32 = 64_000_000;
 const TOUCH_FREQ: u32 = 200_000;
 
 #[embassy_executor::main]
@@ -43,16 +45,20 @@ async fn main(_spawner: Spawner) {
     //let touch_irq = p.PIN_17;
 
     // create SPI
-    let mut config = spi::Config::default();
-    config.frequency = TOUCH_FREQ; // use the lowest freq
-    config.phase = spi::Phase::CaptureOnSecondTransition;
-    config.polarity = spi::Polarity::IdleHigh;
+    let mut display_config = spi::Config::default();
+    display_config.frequency = DISPLAY_FREQ;
+    display_config.phase = spi::Phase::CaptureOnSecondTransition;
+    display_config.polarity = spi::Polarity::IdleHigh;
+    let mut touch_config = spi::Config::default();
+    touch_config.frequency = TOUCH_FREQ;
+    touch_config.phase = spi::Phase::CaptureOnSecondTransition;
+    touch_config.polarity = spi::Polarity::IdleHigh;
 
-    let spi: Spi<'_, _, Blocking> = Spi::new_blocking(p.SPI1, clk, mosi, miso, config);
-    let spi_bus = RefCell::new(spi);
+    let spi: Spi<'_, _, Blocking> = Spi::new_blocking(p.SPI1, clk, mosi, miso, touch_config.clone());
+    let spi_bus: Mutex<NoopRawMutex, _> = Mutex::new(RefCell::new(spi));
 
-    let display_spi = SpiDeviceWithCs::new(&spi_bus, Output::new(display_cs, Level::High));
-    let touch_spi = SpiDeviceWithCs::new(&spi_bus, Output::new(touch_cs, Level::High));
+    let display_spi = SpiDeviceWithConfig::new(&spi_bus, Output::new(display_cs, Level::High), display_config);
+    let touch_spi = SpiDeviceWithConfig::new(&spi_bus, Output::new(touch_cs, Level::High), touch_config);
 
     let mut touch = Touch::new(touch_spi);
 
@@ -104,85 +110,9 @@ async fn main(_spawner: Spawner) {
     }
 }
 
-mod shared_spi {
-    use core::cell::RefCell;
-    use core::fmt::Debug;
-
-    use embedded_hal_1::digital::OutputPin;
-    use embedded_hal_1::spi;
-    use embedded_hal_1::spi::SpiDevice;
-
-    #[derive(Copy, Clone, Eq, PartialEq, Debug)]
-    pub enum SpiDeviceWithCsError<BUS, CS> {
-        #[allow(unused)] // will probably use in the future when adding a flush() to SpiBus
-        Spi(BUS),
-        Cs(CS),
-    }
-
-    impl<BUS, CS> spi::Error for SpiDeviceWithCsError<BUS, CS>
-    where
-        BUS: spi::Error + Debug,
-        CS: Debug,
-    {
-        fn kind(&self) -> spi::ErrorKind {
-            match self {
-                Self::Spi(e) => e.kind(),
-                Self::Cs(_) => spi::ErrorKind::Other,
-            }
-        }
-    }
-
-    pub struct SpiDeviceWithCs<'a, BUS, CS> {
-        bus: &'a RefCell<BUS>,
-        cs: CS,
-    }
-
-    impl<'a, BUS, CS> SpiDeviceWithCs<'a, BUS, CS> {
-        pub fn new(bus: &'a RefCell<BUS>, cs: CS) -> Self {
-            Self { bus, cs }
-        }
-    }
-
-    impl<'a, BUS, CS> spi::ErrorType for SpiDeviceWithCs<'a, BUS, CS>
-    where
-        BUS: spi::ErrorType,
-        CS: OutputPin,
-    {
-        type Error = SpiDeviceWithCsError<BUS::Error, CS::Error>;
-    }
-
-    impl<'a, BUS, CS> SpiDevice for SpiDeviceWithCs<'a, BUS, CS>
-    where
-        BUS: spi::SpiBusFlush,
-        CS: OutputPin,
-    {
-        type Bus = BUS;
-
-        fn transaction<R>(
-            &mut self,
-            f: impl FnOnce(&mut Self::Bus) -> Result<R, BUS::Error>,
-        ) -> Result<R, Self::Error> {
-            let mut bus = self.bus.borrow_mut();
-            self.cs.set_low().map_err(SpiDeviceWithCsError::Cs)?;
-
-            let f_res = f(&mut bus);
-
-            // On failure, it's important to still flush and deassert CS.
-            let flush_res = bus.flush();
-            let cs_res = self.cs.set_high();
-
-            let f_res = f_res.map_err(SpiDeviceWithCsError::Spi)?;
-            flush_res.map_err(SpiDeviceWithCsError::Spi)?;
-            cs_res.map_err(SpiDeviceWithCsError::Cs)?;
-
-            Ok(f_res)
-        }
-    }
-}
-
 /// Driver for the XPT2046 resistive touchscreen sensor
 mod touch {
-    use embedded_hal_1::spi::{SpiBus, SpiBusRead, SpiBusWrite, SpiDevice};
+    use embedded_hal_1::spi::{Operation, SpiDevice};
 
     struct Calibration {
         x1: i32,
@@ -209,7 +139,6 @@ mod touch {
     impl<SPI> Touch<SPI>
     where
         SPI: SpiDevice,
-        SPI::Bus: SpiBus,
     {
         pub fn new(spi: SPI) -> Self {
             Self { spi }
@@ -219,13 +148,12 @@ mod touch {
             let mut x = [0; 2];
             let mut y = [0; 2];
             self.spi
-                .transaction(|bus| {
-                    bus.write(&[0x90])?;
-                    bus.read(&mut x)?;
-                    bus.write(&[0xd0])?;
-                    bus.read(&mut y)?;
-                    Ok(())
-                })
+                .transaction(&mut [
+                    Operation::Write(&[0x90]),
+                    Operation::Read(&mut x),
+                    Operation::Write(&[0xd0]),
+                    Operation::Read(&mut y),
+                ])
                 .unwrap();
 
             let x = (u16::from_be_bytes(x) >> 3) as i32;
@@ -247,7 +175,7 @@ mod touch {
 mod my_display_interface {
     use display_interface::{DataFormat, DisplayError, WriteOnlyDataCommand};
     use embedded_hal_1::digital::OutputPin;
-    use embedded_hal_1::spi::{SpiBusWrite, SpiDevice};
+    use embedded_hal_1::spi::SpiDeviceWrite;
 
     /// SPI display interface.
     ///
@@ -259,8 +187,7 @@ mod my_display_interface {
 
     impl<SPI, DC> SPIDeviceInterface<SPI, DC>
     where
-        SPI: SpiDevice,
-        SPI::Bus: SpiBusWrite,
+        SPI: SpiDeviceWrite,
         DC: OutputPin,
     {
         /// Create new SPI interface for communciation with a display driver
@@ -271,42 +198,27 @@ mod my_display_interface {
 
     impl<SPI, DC> WriteOnlyDataCommand for SPIDeviceInterface<SPI, DC>
     where
-        SPI: SpiDevice,
-        SPI::Bus: SpiBusWrite,
+        SPI: SpiDeviceWrite,
         DC: OutputPin,
     {
         fn send_commands(&mut self, cmds: DataFormat<'_>) -> Result<(), DisplayError> {
-            let r = self.spi.transaction(|bus| {
-                // 1 = data, 0 = command
-                if let Err(_) = self.dc.set_low() {
-                    return Ok(Err(DisplayError::DCError));
-                }
-
-                // Send words over SPI
-                send_u8(bus, cmds)?;
+            // 1 = data, 0 = command
+            self.dc.set_low().map_err(|_| DisplayError::DCError)?;
 
-                Ok(Ok(()))
-            });
-            r.map_err(|_| DisplayError::BusWriteError)?
+            send_u8(&mut self.spi, cmds).map_err(|_| DisplayError::BusWriteError)?;
+            Ok(())
         }
 
         fn send_data(&mut self, buf: DataFormat<'_>) -> Result<(), DisplayError> {
-            let r = self.spi.transaction(|bus| {
-                // 1 = data, 0 = command
-                if let Err(_) = self.dc.set_high() {
-                    return Ok(Err(DisplayError::DCError));
-                }
-
-                // Send words over SPI
-                send_u8(bus, buf)?;
+            // 1 = data, 0 = command
+            self.dc.set_high().map_err(|_| DisplayError::DCError)?;
 
-                Ok(Ok(()))
-            });
-            r.map_err(|_| DisplayError::BusWriteError)?
+            send_u8(&mut self.spi, buf).map_err(|_| DisplayError::BusWriteError)?;
+            Ok(())
         }
     }
 
-    fn send_u8<T: SpiBusWrite>(spi: &mut T, words: DataFormat<'_>) -> Result<(), T::Error> {
+    fn send_u8<T: SpiDeviceWrite>(spi: &mut T, words: DataFormat<'_>) -> Result<(), T::Error> {
         match words {
             DataFormat::U8(slice) => spi.write(slice),
             DataFormat::U16(slice) => {
diff --git a/examples/std/Cargo.toml b/examples/std/Cargo.toml
index 8087df09a..ff08e378c 100644
--- a/examples/std/Cargo.toml
+++ b/examples/std/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["log"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["log", "std", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-std", "executor-thread", "log", "nightly", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["log", "std", "nightly"] }
 embassy-net = { version = "0.1.0", path = "../../embassy-net", features=[ "std", "nightly", "log", "medium-ethernet", "tcp", "udp", "dns", "dhcpv4", "unstable-traits", "proto-ipv6"] }
 embassy-net-driver = { version = "0.1.0", path = "../../embassy-net-driver" }
diff --git a/examples/stm32c0/Cargo.toml b/examples/stm32c0/Cargo.toml
index 0095a680c..3b1d888f6 100644
--- a/examples/stm32c0/Cargo.toml
+++ b/examples/stm32c0/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "time-driver-any", "stm32c031c6", "memory-x", "unstable-pac", "exti"]  }
 
diff --git a/examples/stm32f0/Cargo.toml b/examples/stm32f0/Cargo.toml
index 89d99b6d3..5c82c5579 100644
--- a/examples/stm32f0/Cargo.toml
+++ b/examples/stm32f0/Cargo.toml
@@ -13,7 +13,7 @@ defmt = "0.3"
 defmt-rtt = "0.4"
 panic-probe = "0.3"
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "memory-x", "stm32f091rc", "time-driver-any", "exti", "unstable-pac"] }
 static_cell = "1.0"
diff --git a/examples/stm32f0/src/bin/adc.rs b/examples/stm32f0/src/bin/adc.rs
new file mode 100644
index 000000000..8ed9f98f8
--- /dev/null
+++ b/examples/stm32f0/src/bin/adc.rs
@@ -0,0 +1,35 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::adc::{Adc, SampleTime};
+use embassy_time::{Delay, Duration, 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 adc = Adc::new(p.ADC, &mut Delay);
+    adc.set_sample_time(SampleTime::Cycles71_5);
+    let mut pin = p.PA1;
+
+    let mut vrefint = adc.enable_vref(&mut Delay);
+    let vrefint_sample = adc.read_internal(&mut vrefint);
+    let convert_to_millivolts = |sample| {
+        // From https://www.st.com/resource/en/datasheet/stm32f031c6.pdf
+        // 6.3.4 Embedded reference voltage
+        const VREFINT_MV: u32 = 1230; // mV
+
+        (u32::from(sample) * VREFINT_MV / u32::from(vrefint_sample)) as u16
+    };
+
+    loop {
+        let v = adc.read(&mut pin);
+        info!("--> {} - {} mV", v, convert_to_millivolts(v));
+        Timer::after(Duration::from_millis(100)).await;
+    }
+}
diff --git a/examples/stm32f0/src/bin/multiprio.rs b/examples/stm32f0/src/bin/multiprio.rs
index e0dc8c989..430a805fc 100644
--- a/examples/stm32f0/src/bin/multiprio.rs
+++ b/examples/stm32f0/src/bin/multiprio.rs
@@ -62,7 +62,7 @@ use core::mem;
 use cortex_m::peripheral::NVIC;
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_stm32::executor::{Executor, InterruptExecutor};
+use embassy_executor::{Executor, InterruptExecutor};
 use embassy_stm32::interrupt;
 use embassy_stm32::pac::Interrupt;
 use embassy_time::{Duration, Instant, Timer};
diff --git a/examples/stm32f1/Cargo.toml b/examples/stm32f1/Cargo.toml
index 53f369b3a..99f37cdda 100644
--- a/examples/stm32f1/Cargo.toml
+++ b/examples/stm32f1/Cargo.toml
@@ -6,9 +6,9 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32f103c8", "unstable-pac", "memory-x", "time-driver-any"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32f103c8", "unstable-pac", "memory-x", "time-driver-any", "unstable-traits" ]  }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
 embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
 
diff --git a/examples/stm32f2/Cargo.toml b/examples/stm32f2/Cargo.toml
index afaf9a0c9..ffb232310 100644
--- a/examples/stm32f2/Cargo.toml
+++ b/examples/stm32f2/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32f207zg", "unstable-pac", "memory-x", "time-driver-any", "exti"]  }
 
diff --git a/examples/stm32f3/Cargo.toml b/examples/stm32f3/Cargo.toml
index 69ebef786..38f11201d 100644
--- a/examples/stm32f3/Cargo.toml
+++ b/examples/stm32f3/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32f303ze", "unstable-pac", "memory-x", "time-driver-any", "exti"]  }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
diff --git a/examples/stm32f3/src/bin/flash.rs b/examples/stm32f3/src/bin/flash.rs
index baa7484d0..e40ad4fc0 100644
--- a/examples/stm32f3/src/bin/flash.rs
+++ b/examples/stm32f3/src/bin/flash.rs
@@ -15,7 +15,7 @@ async fn main(_spawner: Spawner) {
 
     const ADDR: u32 = 0x26000;
 
-    let mut f = Flash::new(p.FLASH);
+    let mut f = Flash::new(p.FLASH).into_regions().bank1_region;
 
     info!("Reading...");
     let mut buf = [0u8; 8];
diff --git a/examples/stm32f3/src/bin/multiprio.rs b/examples/stm32f3/src/bin/multiprio.rs
index 77df51ac7..5d010f799 100644
--- a/examples/stm32f3/src/bin/multiprio.rs
+++ b/examples/stm32f3/src/bin/multiprio.rs
@@ -62,7 +62,7 @@ use core::mem;
 use cortex_m::peripheral::NVIC;
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_stm32::executor::{Executor, InterruptExecutor};
+use embassy_executor::{Executor, InterruptExecutor};
 use embassy_stm32::interrupt;
 use embassy_stm32::pac::Interrupt;
 use embassy_time::{Duration, Instant, Timer};
diff --git a/examples/stm32f4/Cargo.toml b/examples/stm32f4/Cargo.toml
index 7a7bab5bb..d967d8501 100644
--- a/examples/stm32f4/Cargo.toml
+++ b/examples/stm32f4/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers", "arch-cortex-m", "executor-thread", "executor-interrupt"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "unstable-traits", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "unstable-traits", "defmt", "stm32f429zi", "unstable-pac", "memory-x", "time-driver-any", "exti"]  }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
diff --git a/examples/stm32f4/src/bin/flash.rs b/examples/stm32f4/src/bin/flash.rs
index 7ea068a42..bd3a7c95e 100644
--- a/examples/stm32f4/src/bin/flash.rs
+++ b/examples/stm32f4/src/bin/flash.rs
@@ -5,7 +5,6 @@
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
 use embassy_stm32::flash::Flash;
-use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
@@ -13,6 +12,8 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
+    // Once can also call `into_regions()` to get access to NorFlash implementations
+    // for each of the unique characteristics.
     let mut f = Flash::new(p.FLASH);
 
     // Sector 5
@@ -30,19 +31,19 @@ fn test_flash(f: &mut Flash, offset: u32, size: u32) {
 
     info!("Reading...");
     let mut buf = [0u8; 32];
-    unwrap!(f.read(offset, &mut buf));
+    unwrap!(f.blocking_read(offset, &mut buf));
     info!("Read: {=[u8]:x}", buf);
 
     info!("Erasing...");
-    unwrap!(f.erase(offset, offset + size));
+    unwrap!(f.blocking_erase(offset, offset + size));
 
     info!("Reading...");
     let mut buf = [0u8; 32];
-    unwrap!(f.read(offset, &mut buf));
+    unwrap!(f.blocking_read(offset, &mut buf));
     info!("Read after erase: {=[u8]:x}", buf);
 
     info!("Writing...");
-    unwrap!(f.write(
+    unwrap!(f.blocking_write(
         offset,
         &[
             1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
@@ -52,7 +53,7 @@ fn test_flash(f: &mut Flash, offset: u32, size: u32) {
 
     info!("Reading...");
     let mut buf = [0u8; 32];
-    unwrap!(f.read(offset, &mut buf));
+    unwrap!(f.blocking_read(offset, &mut buf));
     info!("Read: {=[u8]:x}", buf);
     assert_eq!(
         &buf[..],
diff --git a/examples/stm32f4/src/bin/mco.rs b/examples/stm32f4/src/bin/mco.rs
new file mode 100644
index 000000000..2b9ceebc3
--- /dev/null
+++ b/examples/stm32f4/src/bin/mco.rs
@@ -0,0 +1,30 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::gpio::{Level, Output, Speed};
+use embassy_stm32::rcc::{Mco, Mco1Source, Mco2Source, McoClock};
+use embassy_time::{Duration, 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 _mco1 = Mco::new(p.MCO1, p.PA8, Mco1Source::Hsi, McoClock::DIV1);
+    let _mco2 = Mco::new(p.MCO2, p.PC9, Mco2Source::Pll, McoClock::DIV4);
+    let mut led = Output::new(p.PB7, Level::High, Speed::Low);
+
+    loop {
+        info!("high");
+        led.set_high();
+        Timer::after(Duration::from_millis(300)).await;
+
+        info!("low");
+        led.set_low();
+        Timer::after(Duration::from_millis(300)).await;
+    }
+}
diff --git a/examples/stm32f4/src/bin/multiprio.rs b/examples/stm32f4/src/bin/multiprio.rs
index 77df51ac7..5d010f799 100644
--- a/examples/stm32f4/src/bin/multiprio.rs
+++ b/examples/stm32f4/src/bin/multiprio.rs
@@ -62,7 +62,7 @@ use core::mem;
 use cortex_m::peripheral::NVIC;
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_stm32::executor::{Executor, InterruptExecutor};
+use embassy_executor::{Executor, InterruptExecutor};
 use embassy_stm32::interrupt;
 use embassy_stm32::pac::Interrupt;
 use embassy_time::{Duration, Instant, Timer};
diff --git a/examples/stm32f4/src/bin/pwm_complementary.rs b/examples/stm32f4/src/bin/pwm_complementary.rs
new file mode 100644
index 000000000..6e17f3fd3
--- /dev/null
+++ b/examples/stm32f4/src/bin/pwm_complementary.rs
@@ -0,0 +1,77 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::pwm::complementary_pwm::{Ckd, ComplementaryPwm, ComplementaryPwmPin};
+use embassy_stm32::pwm::simple_pwm::PwmPin;
+use embassy_stm32::pwm::Channel;
+use embassy_stm32::time::khz;
+use embassy_time::{Duration, 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 ch1 = PwmPin::new_ch1(p.PE9);
+    let ch1n = ComplementaryPwmPin::new_ch1(p.PA7);
+    let mut pwm = ComplementaryPwm::new(
+        p.TIM1,
+        Some(ch1),
+        Some(ch1n),
+        None,
+        None,
+        None,
+        None,
+        None,
+        None,
+        khz(10),
+    );
+
+    /*
+        Dead-time = T_clk * T_dts * T_dtg
+
+        T_dts:
+        This bit-field indicates the division ratio between the timer clock (CK_INT) frequency and the
+        dead-time and sampling clock (tDTS)used by the dead-time generators and the digital filters
+        (ETR, TIx),
+        00: tDTS=tCK_INT
+        01: tDTS=2*tCK_INT
+        10: tDTS=4*tCK_INT
+
+        T_dtg:
+        This bit-field defines the duration of the dead-time inserted between the complementary
+        outputs. DT correspond to this duration.
+        DTG[7:5]=0xx => DT=DTG[7:0]x tdtg with tdtg=tDTS.
+        DTG[7:5]=10x => DT=(64+DTG[5:0])xtdtg with Tdtg=2xtDTS.
+        DTG[7:5]=110 => DT=(32+DTG[4:0])xtdtg with Tdtg=8xtDTS.
+        DTG[7:5]=111 => DT=(32+DTG[4:0])xtdtg with Tdtg=16xtDTS.
+        Example if TDTS=125ns (8MHz), dead-time possible values are:
+        0 to 15875 ns by 125 ns steps,
+        16 us to 31750 ns by 250 ns steps,
+        32 us to 63us by 1 us steps,
+        64 us to 126 us by 2 us steps
+    */
+    pwm.set_dead_time_clock_division(Ckd::DIV1);
+    pwm.set_dead_time_value(0);
+
+    let max = pwm.get_max_duty();
+    pwm.enable(Channel::Ch1);
+
+    info!("PWM initialized");
+    info!("PWM max duty {}", max);
+
+    loop {
+        pwm.set_duty(Channel::Ch1, 0);
+        Timer::after(Duration::from_millis(300)).await;
+        pwm.set_duty(Channel::Ch1, max / 4);
+        Timer::after(Duration::from_millis(300)).await;
+        pwm.set_duty(Channel::Ch1, max / 2);
+        Timer::after(Duration::from_millis(300)).await;
+        pwm.set_duty(Channel::Ch1, max - 1);
+        Timer::after(Duration::from_millis(300)).await;
+    }
+}
diff --git a/examples/stm32f4/src/bin/usart_buffered.rs b/examples/stm32f4/src/bin/usart_buffered.rs
index dd171fe13..a93f8baeb 100644
--- a/examples/stm32f4/src/bin/usart_buffered.rs
+++ b/examples/stm32f4/src/bin/usart_buffered.rs
@@ -5,7 +5,7 @@
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_stm32::interrupt;
-use embassy_stm32::usart::{BufferedUart, Config, State};
+use embassy_stm32::usart::{BufferedUart, Config};
 use embedded_io::asynch::BufRead;
 use {defmt_rtt as _, panic_probe as _};
 
@@ -16,20 +16,10 @@ async fn main(_spawner: Spawner) {
 
     let config = Config::default();
 
-    let mut state = State::new();
     let irq = interrupt::take!(USART3);
     let mut tx_buf = [0u8; 32];
     let mut rx_buf = [0u8; 32];
-    let mut buf_usart = BufferedUart::new(
-        &mut state,
-        p.USART3,
-        p.PD9,
-        p.PD8,
-        irq,
-        &mut tx_buf,
-        &mut rx_buf,
-        config,
-    );
+    let mut buf_usart = BufferedUart::new(p.USART3, irq, p.PD9, p.PD8, &mut tx_buf, &mut rx_buf, config);
 
     loop {
         let buf = buf_usart.fill_buf().await.unwrap();
diff --git a/examples/stm32f7/Cargo.toml b/examples/stm32f7/Cargo.toml
index ea4cbd808..74e7bf53d 100644
--- a/examples/stm32f7/Cargo.toml
+++ b/examples/stm32f7/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32f767zi", "unstable-pac", "time-driver-any", "exti"]  }
 embassy-net = { path = "../../embassy-net", features = ["defmt", "nightly", "tcp", "dhcpv4", "medium-ethernet"] }
diff --git a/examples/stm32f7/src/bin/flash.rs b/examples/stm32f7/src/bin/flash.rs
index 4a7bca1fa..aabfe8557 100644
--- a/examples/stm32f7/src/bin/flash.rs
+++ b/examples/stm32f7/src/bin/flash.rs
@@ -14,12 +14,12 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
-    const ADDR: u32 = 0x8_0000;
+    const ADDR: u32 = 0x8_0000; // This is the offset into the third region, the absolute address is 4x32K + 128K + 0x8_0000.
 
     // wait a bit before accessing the flash
     Timer::after(Duration::from_millis(300)).await;
 
-    let mut f = Flash::new(p.FLASH);
+    let mut f = Flash::new(p.FLASH).into_regions().bank1_region3;
 
     info!("Reading...");
     let mut buf = [0u8; 32];
diff --git a/examples/stm32g0/Cargo.toml b/examples/stm32g0/Cargo.toml
index e7273c9fc..03bdbcea3 100644
--- a/examples/stm32g0/Cargo.toml
+++ b/examples/stm32g0/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "time-driver-any", "stm32g071rb", "memory-x", "unstable-pac", "exti"]  }
 
diff --git a/examples/stm32g4/Cargo.toml b/examples/stm32g4/Cargo.toml
index 8a57a8ef0..4e4150350 100644
--- a/examples/stm32g4/Cargo.toml
+++ b/examples/stm32g4/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "time-driver-any", "stm32g491re", "memory-x", "unstable-pac", "exti"]  }
 embassy-hal-common = {version = "0.1.0", path = "../../embassy-hal-common" }
diff --git a/examples/stm32h5/.cargo/config.toml b/examples/stm32h5/.cargo/config.toml
new file mode 100644
index 000000000..c8b864b6c
--- /dev/null
+++ b/examples/stm32h5/.cargo/config.toml
@@ -0,0 +1,8 @@
+[target.thumbv8m.main-none-eabihf]
+runner = 'probe-rs-cli run --chip STM32H563ZITx'
+
+[build]
+target = "thumbv8m.main-none-eabihf"
+
+[env]
+DEFMT_LOG = "trace"
diff --git a/examples/stm32h5/Cargo.toml b/examples/stm32h5/Cargo.toml
new file mode 100644
index 000000000..b77d376ca
--- /dev/null
+++ b/examples/stm32h5/Cargo.toml
@@ -0,0 +1,71 @@
+[package]
+edition = "2021"
+name = "embassy-stm32h5-examples"
+version = "0.1.0"
+license = "MIT OR Apache-2.0"
+
+[dependencies]
+embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "unstable-traits", "tick-hz-32_768"] }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32h563zi", "time-driver-any", "exti", "unstable-pac", "unstable-traits"] }
+embassy-net = { path = "../../embassy-net", features = ["defmt", "nightly", "tcp", "dhcpv4", "medium-ethernet", "unstable-traits", "proto-ipv6"] }
+embedded-io = { version = "0.4.0", features = ["async"] }
+embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
+
+defmt = "0.3"
+defmt-rtt = "0.4"
+
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
+cortex-m-rt = "0.7.0"
+embedded-hal = "0.2.6"
+embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-alpha.10" }
+embedded-hal-async = { version = "=0.2.0-alpha.1" }
+embedded-nal-async = "0.4.0"
+panic-probe = { version = "0.3", features = ["print-defmt"] }
+futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
+heapless = { version = "0.7.5", default-features = false }
+rand_core = "0.6.3"
+critical-section = "1.1"
+micromath = "2.0.0"
+stm32-fmc = "0.2.4"
+embedded-storage = "0.3.0"
+static_cell = "1.0"
+
+# cargo build/run
+[profile.dev]
+codegen-units = 1
+debug = 2
+debug-assertions = true # <-
+incremental = false
+opt-level = 3 # <-
+overflow-checks = true # <-
+
+# cargo test
+[profile.test]
+codegen-units = 1
+debug = 2
+debug-assertions = true # <-
+incremental = false
+opt-level = 3 # <-
+overflow-checks = true # <-
+
+# cargo build/run --release
+[profile.release]
+codegen-units = 1
+debug = 2
+debug-assertions = false # <-
+incremental = false
+lto = 'fat'
+opt-level = 3 # <-
+overflow-checks = false # <-
+
+# cargo test --release
+[profile.bench]
+codegen-units = 1
+debug = 2
+debug-assertions = false # <-
+incremental = false
+lto = 'fat'
+opt-level = 3 # <-
+overflow-checks = false # <-
diff --git a/examples/stm32h5/build.rs b/examples/stm32h5/build.rs
new file mode 100644
index 000000000..8cd32d7ed
--- /dev/null
+++ b/examples/stm32h5/build.rs
@@ -0,0 +1,5 @@
+fn main() {
+    println!("cargo:rustc-link-arg-bins=--nmagic");
+    println!("cargo:rustc-link-arg-bins=-Tlink.x");
+    println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
+}
diff --git a/examples/stm32h5/memory.x b/examples/stm32h5/memory.x
new file mode 100644
index 000000000..456061509
--- /dev/null
+++ b/examples/stm32h5/memory.x
@@ -0,0 +1,5 @@
+MEMORY
+{
+    FLASH : ORIGIN = 0x08000000, LENGTH = 0x200000
+    RAM   : ORIGIN = 0x20000000, LENGTH =  0x50000
+}
diff --git a/examples/stm32h5/src/bin/blinky.rs b/examples/stm32h5/src/bin/blinky.rs
new file mode 100644
index 000000000..f9bf90d2e
--- /dev/null
+++ b/examples/stm32h5/src/bin/blinky.rs
@@ -0,0 +1,27 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::gpio::{Level, Output, Speed};
+use embassy_time::{Duration, 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.PB0, Level::High, Speed::Low);
+
+    loop {
+        info!("high");
+        led.set_high();
+        Timer::after(Duration::from_millis(500)).await;
+
+        info!("low");
+        led.set_low();
+        Timer::after(Duration::from_millis(500)).await;
+    }
+}
diff --git a/examples/stm32h5/src/bin/button_exti.rs b/examples/stm32h5/src/bin/button_exti.rs
new file mode 100644
index 000000000..dfe587d41
--- /dev/null
+++ b/examples/stm32h5/src/bin/button_exti.rs
@@ -0,0 +1,27 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::exti::ExtiInput;
+use embassy_stm32::gpio::{Input, 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 button = Input::new(p.PC13, Pull::Down);
+    let mut button = ExtiInput::new(button, p.EXTI13);
+
+    info!("Press the USER button...");
+
+    loop {
+        button.wait_for_rising_edge().await;
+        info!("Pressed!");
+        button.wait_for_falling_edge().await;
+        info!("Released!");
+    }
+}
diff --git a/examples/stm32h5/src/bin/eth.rs b/examples/stm32h5/src/bin/eth.rs
new file mode 100644
index 000000000..6d650da9e
--- /dev/null
+++ b/examples/stm32h5/src/bin/eth.rs
@@ -0,0 +1,133 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_net::tcp::TcpSocket;
+use embassy_net::{Ipv4Address, Stack, StackResources};
+use embassy_stm32::eth::generic_smi::GenericSMI;
+use embassy_stm32::eth::{Ethernet, PacketQueue};
+use embassy_stm32::peripherals::ETH;
+use embassy_stm32::rcc::{AHBPrescaler, APBPrescaler, Hse, HseMode, Pll, PllSource, Sysclk, VoltageScale};
+use embassy_stm32::rng::Rng;
+use embassy_stm32::time::Hertz;
+use embassy_stm32::{interrupt, Config};
+use embassy_time::{Duration, Timer};
+use embedded_io::asynch::Write;
+use rand_core::RngCore;
+use static_cell::StaticCell;
+use {defmt_rtt as _, panic_probe as _};
+
+macro_rules! singleton {
+    ($val:expr) => {{
+        type T = impl Sized;
+        static STATIC_CELL: StaticCell<T> = StaticCell::new();
+        let (x,) = STATIC_CELL.init(($val,));
+        x
+    }};
+}
+
+type Device = Ethernet<'static, ETH, GenericSMI>;
+
+#[embassy_executor::task]
+async fn net_task(stack: &'static Stack<Device>) -> ! {
+    stack.run().await
+}
+
+#[embassy_executor::main]
+async fn main(spawner: Spawner) -> ! {
+    let mut config = Config::default();
+    config.rcc.hsi = None;
+    config.rcc.hsi48 = true; // needed for rng
+    config.rcc.hse = Some(Hse {
+        freq: Hertz(8_000_000),
+        mode: HseMode::BypassDigital,
+    });
+    config.rcc.pll1 = Some(Pll {
+        source: PllSource::Hse,
+        prediv: 2,
+        mul: 125,
+        divp: Some(2),
+        divq: Some(2),
+        divr: None,
+    });
+    config.rcc.ahb_pre = AHBPrescaler::NotDivided;
+    config.rcc.apb1_pre = APBPrescaler::NotDivided;
+    config.rcc.apb2_pre = APBPrescaler::NotDivided;
+    config.rcc.apb3_pre = APBPrescaler::NotDivided;
+    config.rcc.sys = Sysclk::Pll1P;
+    config.rcc.voltage_scale = VoltageScale::Scale0;
+    let p = embassy_stm32::init(config);
+    info!("Hello World!");
+
+    // Generate random seed.
+    let mut rng = Rng::new(p.RNG);
+    let mut seed = [0; 8];
+    rng.fill_bytes(&mut seed);
+    let seed = u64::from_le_bytes(seed);
+
+    let eth_int = interrupt::take!(ETH);
+    let mac_addr = [0x00, 0x00, 0xDE, 0xAD, 0xBE, 0xEF];
+
+    let device = Ethernet::new(
+        singleton!(PacketQueue::<4, 4>::new()),
+        p.ETH,
+        eth_int,
+        p.PA1,
+        p.PA2,
+        p.PC1,
+        p.PA7,
+        p.PC4,
+        p.PC5,
+        p.PG13,
+        p.PB15,
+        p.PG11,
+        GenericSMI,
+        mac_addr,
+        0,
+    );
+
+    let config = embassy_net::Config::Dhcp(Default::default());
+    //let config = embassy_net::Config::Static(embassy_net::StaticConfig {
+    //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
+    //    dns_servers: Vec::new(),
+    //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
+    //});
+
+    // Init network stack
+    let stack = &*singleton!(Stack::new(device, config, singleton!(StackResources::<2>::new()), seed));
+
+    // Launch network task
+    unwrap!(spawner.spawn(net_task(&stack)));
+
+    info!("Network task initialized");
+
+    // Then we can use it!
+    let mut rx_buffer = [0; 1024];
+    let mut tx_buffer = [0; 1024];
+
+    loop {
+        let mut socket = TcpSocket::new(&stack, &mut rx_buffer, &mut tx_buffer);
+
+        socket.set_timeout(Some(embassy_net::SmolDuration::from_secs(10)));
+
+        let remote_endpoint = (Ipv4Address::new(10, 42, 0, 1), 8000);
+        info!("connecting...");
+        let r = socket.connect(remote_endpoint).await;
+        if let Err(e) = r {
+            info!("connect error: {:?}", e);
+            Timer::after(Duration::from_secs(3)).await;
+            continue;
+        }
+        info!("connected!");
+        loop {
+            let r = socket.write_all(b"Hello\n").await;
+            if let Err(e) = r {
+                info!("write error: {:?}", e);
+                continue;
+            }
+            Timer::after(Duration::from_secs(1)).await;
+        }
+    }
+}
diff --git a/examples/stm32h5/src/bin/i2c.rs b/examples/stm32h5/src/bin/i2c.rs
new file mode 100644
index 000000000..6cbf58bbc
--- /dev/null
+++ b/examples/stm32h5/src/bin/i2c.rs
@@ -0,0 +1,44 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::i2c::{Error, I2c, TimeoutI2c};
+use embassy_stm32::interrupt;
+use embassy_stm32::time::Hertz;
+use embassy_time::Duration;
+use {defmt_rtt as _, panic_probe as _};
+
+const ADDRESS: u8 = 0x5F;
+const WHOAMI: u8 = 0x0F;
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    info!("Hello world!");
+    let p = embassy_stm32::init(Default::default());
+
+    let irq = interrupt::take!(I2C2_EV);
+    let mut i2c = I2c::new(
+        p.I2C2,
+        p.PB10,
+        p.PB11,
+        irq,
+        p.GPDMA1_CH4,
+        p.GPDMA1_CH5,
+        Hertz(100_000),
+        Default::default(),
+    );
+
+    // I2C bus can freeze if SCL line is shorted or due to a broken device that clock stretches for too long.
+    // TimeoutI2c allows recovering from such errors by throwing `Error::Timeout` after a given delay.
+    let mut timeout_i2c = TimeoutI2c::new(&mut i2c, Duration::from_millis(1000));
+
+    let mut data = [0u8; 1];
+
+    match timeout_i2c.blocking_write_read(ADDRESS, &[WHOAMI], &mut data) {
+        Ok(()) => info!("Whoami: {}", data[0]),
+        Err(Error::Timeout) => error!("Operation timed out"),
+        Err(e) => error!("I2c Error: {:?}", e),
+    }
+}
diff --git a/examples/stm32h5/src/bin/rng.rs b/examples/stm32h5/src/bin/rng.rs
new file mode 100644
index 000000000..af9be0b62
--- /dev/null
+++ b/examples/stm32h5/src/bin/rng.rs
@@ -0,0 +1,20 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::rng::Rng;
+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 rng = Rng::new(p.RNG);
+
+    let mut buf = [0u8; 16];
+    unwrap!(rng.async_fill_bytes(&mut buf).await);
+    info!("random bytes: {:02x}", buf);
+}
diff --git a/examples/stm32h5/src/bin/usart.rs b/examples/stm32h5/src/bin/usart.rs
new file mode 100644
index 000000000..405f18ec7
--- /dev/null
+++ b/examples/stm32h5/src/bin/usart.rs
@@ -0,0 +1,43 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use cortex_m_rt::entry;
+use defmt::*;
+use embassy_executor::Executor;
+use embassy_stm32::dma::NoDma;
+use embassy_stm32::interrupt;
+use embassy_stm32::usart::{Config, Uart};
+use static_cell::StaticCell;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::task]
+async fn main_task() {
+    let p = embassy_stm32::init(Default::default());
+
+    let config = Config::default();
+    let irq = interrupt::take!(UART7);
+    let mut usart = Uart::new(p.UART7, p.PF6, p.PF7, irq, NoDma, NoDma, config);
+
+    unwrap!(usart.blocking_write(b"Hello Embassy World!\r\n"));
+    info!("wrote Hello, starting echo");
+
+    let mut buf = [0u8; 1];
+    loop {
+        unwrap!(usart.blocking_read(&mut buf));
+        unwrap!(usart.blocking_write(&buf));
+    }
+}
+
+static EXECUTOR: StaticCell<Executor> = StaticCell::new();
+
+#[entry]
+fn main() -> ! {
+    info!("Hello World!");
+
+    let executor = EXECUTOR.init(Executor::new());
+
+    executor.run(|spawner| {
+        unwrap!(spawner.spawn(main_task()));
+    })
+}
diff --git a/examples/stm32h5/src/bin/usart_dma.rs b/examples/stm32h5/src/bin/usart_dma.rs
new file mode 100644
index 000000000..43d791aae
--- /dev/null
+++ b/examples/stm32h5/src/bin/usart_dma.rs
@@ -0,0 +1,46 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use core::fmt::Write;
+
+use cortex_m_rt::entry;
+use defmt::*;
+use embassy_executor::Executor;
+use embassy_stm32::dma::NoDma;
+use embassy_stm32::interrupt;
+use embassy_stm32::usart::{Config, Uart};
+use heapless::String;
+use static_cell::StaticCell;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::task]
+async fn main_task() {
+    let p = embassy_stm32::init(Default::default());
+
+    let config = Config::default();
+    let irq = interrupt::take!(UART7);
+    let mut usart = Uart::new(p.UART7, p.PF6, p.PF7, irq, p.GPDMA1_CH0, NoDma, config);
+
+    for n in 0u32.. {
+        let mut s: String<128> = String::new();
+        core::write!(&mut s, "Hello DMA World {}!\r\n", n).unwrap();
+
+        usart.write(s.as_bytes()).await.ok();
+
+        info!("wrote DMA");
+    }
+}
+
+static EXECUTOR: StaticCell<Executor> = StaticCell::new();
+
+#[entry]
+fn main() -> ! {
+    info!("Hello World!");
+
+    let executor = EXECUTOR.init(Executor::new());
+
+    executor.run(|spawner| {
+        unwrap!(spawner.spawn(main_task()));
+    })
+}
diff --git a/examples/stm32h5/src/bin/usart_split.rs b/examples/stm32h5/src/bin/usart_split.rs
new file mode 100644
index 000000000..16a499582
--- /dev/null
+++ b/examples/stm32h5/src/bin/usart_split.rs
@@ -0,0 +1,58 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::dma::NoDma;
+use embassy_stm32::interrupt;
+use embassy_stm32::peripherals::{GPDMA1_CH1, UART7};
+use embassy_stm32::usart::{Config, Uart, UartRx};
+use embassy_sync::blocking_mutex::raw::ThreadModeRawMutex;
+use embassy_sync::channel::Channel;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::task]
+async fn writer(mut usart: Uart<'static, UART7, NoDma, NoDma>) {
+    unwrap!(usart.blocking_write(b"Hello Embassy World!\r\n"));
+    info!("wrote Hello, starting echo");
+
+    let mut buf = [0u8; 1];
+    loop {
+        unwrap!(usart.blocking_read(&mut buf));
+        unwrap!(usart.blocking_write(&buf));
+    }
+}
+
+static CHANNEL: Channel<ThreadModeRawMutex, [u8; 8], 1> = Channel::new();
+
+#[embassy_executor::main]
+async fn main(spawner: Spawner) -> ! {
+    let p = embassy_stm32::init(Default::default());
+    info!("Hello World!");
+
+    let config = Config::default();
+    let irq = interrupt::take!(UART7);
+    let mut usart = Uart::new(p.UART7, p.PF6, p.PF7, irq, p.GPDMA1_CH0, p.GPDMA1_CH1, config);
+    unwrap!(usart.blocking_write(b"Type 8 chars to echo!\r\n"));
+
+    let (mut tx, rx) = usart.split();
+
+    unwrap!(spawner.spawn(reader(rx)));
+
+    loop {
+        let buf = CHANNEL.recv().await;
+        info!("writing...");
+        unwrap!(tx.write(&buf).await);
+    }
+}
+
+#[embassy_executor::task]
+async fn reader(mut rx: UartRx<'static, UART7, GPDMA1_CH1>) {
+    let mut buf = [0; 8];
+    loop {
+        info!("reading...");
+        unwrap!(rx.read(&mut buf).await);
+        CHANNEL.send(buf).await;
+    }
+}
diff --git a/examples/stm32h5/src/bin/usb_serial.rs b/examples/stm32h5/src/bin/usb_serial.rs
new file mode 100644
index 000000000..6af269c1d
--- /dev/null
+++ b/examples/stm32h5/src/bin/usb_serial.rs
@@ -0,0 +1,128 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::{panic, *};
+use embassy_executor::Spawner;
+use embassy_stm32::rcc::{AHBPrescaler, APBPrescaler, Hse, HseMode, Pll, PllSource, Sysclk, VoltageScale};
+use embassy_stm32::time::Hertz;
+use embassy_stm32::usb::{Driver, Instance};
+use embassy_stm32::{interrupt, pac, Config};
+use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
+use embassy_usb::driver::EndpointError;
+use embassy_usb::Builder;
+use futures::future::join;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let mut config = Config::default();
+    config.rcc.hsi = None;
+    config.rcc.hsi48 = true; // needed for usb
+    config.rcc.hse = Some(Hse {
+        freq: Hertz(8_000_000),
+        mode: HseMode::BypassDigital,
+    });
+    config.rcc.pll1 = Some(Pll {
+        source: PllSource::Hse,
+        prediv: 2,
+        mul: 125,
+        divp: Some(2), // 250mhz
+        divq: None,
+        divr: None,
+    });
+    config.rcc.ahb_pre = AHBPrescaler::Div2;
+    config.rcc.apb1_pre = APBPrescaler::Div4;
+    config.rcc.apb2_pre = APBPrescaler::Div2;
+    config.rcc.apb3_pre = APBPrescaler::Div4;
+    config.rcc.sys = Sysclk::Pll1P;
+    config.rcc.voltage_scale = VoltageScale::Scale0;
+    let p = embassy_stm32::init(config);
+
+    info!("Hello World!");
+
+    unsafe {
+        pac::RCC.ccipr4().write(|w| {
+            w.set_usbsel(pac::rcc::vals::Usbsel::HSI48);
+        });
+    }
+
+    // Create the driver, from the HAL.
+    let irq = interrupt::take!(USB_DRD_FS);
+    let driver = Driver::new(p.USB, irq, p.PA12, p.PA11);
+
+    // Create embassy-usb Config
+    let mut config = embassy_usb::Config::new(0xc0de, 0xcafe);
+    config.manufacturer = Some("Embassy");
+    config.product = Some("USB-serial example");
+    config.serial_number = Some("12345678");
+
+    // Required for windows compatiblity.
+    // https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/kconfig/CONFIG_CDC_ACM_IAD.html#help
+    config.device_class = 0xEF;
+    config.device_sub_class = 0x02;
+    config.device_protocol = 0x01;
+    config.composite_with_iads = true;
+
+    // Create embassy-usb DeviceBuilder using the driver and config.
+    // It needs some buffers for building the descriptors.
+    let mut device_descriptor = [0; 256];
+    let mut config_descriptor = [0; 256];
+    let mut bos_descriptor = [0; 256];
+    let mut control_buf = [0; 64];
+
+    let mut state = State::new();
+
+    let mut builder = Builder::new(
+        driver,
+        config,
+        &mut device_descriptor,
+        &mut config_descriptor,
+        &mut bos_descriptor,
+        &mut control_buf,
+    );
+
+    // Create classes on the builder.
+    let mut class = CdcAcmClass::new(&mut builder, &mut state, 64);
+
+    // Build the builder.
+    let mut usb = builder.build();
+
+    // Run the USB device.
+    let usb_fut = usb.run();
+
+    // Do stuff with the class!
+    let echo_fut = async {
+        loop {
+            class.wait_connection().await;
+            info!("Connected");
+            let _ = echo(&mut class).await;
+            info!("Disconnected");
+        }
+    };
+
+    // Run everything concurrently.
+    // If we had made everything `'static` above instead, we could do this using separate tasks instead.
+    join(usb_fut, echo_fut).await;
+}
+
+struct Disconnected {}
+
+impl From<EndpointError> for Disconnected {
+    fn from(val: EndpointError) -> Self {
+        match val {
+            EndpointError::BufferOverflow => panic!("Buffer overflow"),
+            EndpointError::Disabled => Disconnected {},
+        }
+    }
+}
+
+async fn echo<'d, T: Instance + 'd>(class: &mut CdcAcmClass<'d, Driver<'d, T>>) -> Result<(), Disconnected> {
+    let mut buf = [0; 64];
+    loop {
+        let n = class.read_packet(&mut buf).await?;
+        let data = &buf[..n];
+        info!("data: {:x}", data);
+        class.write_packet(data).await?;
+    }
+}
diff --git a/examples/stm32h7/Cargo.toml b/examples/stm32h7/Cargo.toml
index a04134789..154f5a987 100644
--- a/examples/stm32h7/Cargo.toml
+++ b/examples/stm32h7/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "unstable-traits", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32h743bi", "time-driver-any", "exti", "unstable-pac", "unstable-traits"] }
 embassy-net = { path = "../../embassy-net", features = ["defmt", "nightly", "tcp", "dhcpv4", "medium-ethernet", "unstable-traits", "proto-ipv6"] }
@@ -19,8 +19,8 @@ defmt-rtt = "0.4"
 cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
-embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-alpha.9" }
-embedded-hal-async = { version = "=0.2.0-alpha.0" }
+embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-alpha.10" }
+embedded-hal-async = { version = "=0.2.0-alpha.1" }
 embedded-nal-async = "0.4.0"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
diff --git a/examples/stm32h7/src/bin/flash.rs b/examples/stm32h7/src/bin/flash.rs
index ee86bdbf6..7ee9838c9 100644
--- a/examples/stm32h7/src/bin/flash.rs
+++ b/examples/stm32h7/src/bin/flash.rs
@@ -14,12 +14,12 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
-    const ADDR: u32 = 0x08_0000;
+    const ADDR: u32 = 0; // This is the offset into bank 2, the absolute address is 0x8_0000
 
     // wait a bit before accessing the flash
     Timer::after(Duration::from_millis(300)).await;
 
-    let mut f = Flash::new(p.FLASH);
+    let mut f = Flash::new(p.FLASH).into_regions().bank2_region;
 
     info!("Reading...");
     let mut buf = [0u8; 32];
diff --git a/examples/stm32l0/Cargo.toml b/examples/stm32l0/Cargo.toml
index 86933a629..413d5c18f 100644
--- a/examples/stm32l0/Cargo.toml
+++ b/examples/stm32l0/Cargo.toml
@@ -10,7 +10,7 @@ nightly = ["embassy-stm32/nightly", "embassy-lora", "lorawan-device", "lorawan",
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32l072cz", "time-driver-any", "exti", "unstable-traits", "memory-x"]  }
 embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["sx127x", "time", "defmt"], optional = true}
diff --git a/examples/stm32l0/src/bin/flash.rs b/examples/stm32l0/src/bin/flash.rs
index ffe4fb10b..337425028 100644
--- a/examples/stm32l0/src/bin/flash.rs
+++ b/examples/stm32l0/src/bin/flash.rs
@@ -15,7 +15,7 @@ async fn main(_spawner: Spawner) {
 
     const ADDR: u32 = 0x26000;
 
-    let mut f = Flash::new(p.FLASH);
+    let mut f = Flash::new(p.FLASH).into_regions().bank1_region;
 
     info!("Reading...");
     let mut buf = [0u8; 8];
diff --git a/examples/stm32l0/src/bin/usart_irq.rs b/examples/stm32l0/src/bin/usart_irq.rs
index 8e84cd092..465347004 100644
--- a/examples/stm32l0/src/bin/usart_irq.rs
+++ b/examples/stm32l0/src/bin/usart_irq.rs
@@ -5,7 +5,7 @@
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_stm32::interrupt;
-use embassy_stm32::usart::{BufferedUart, Config, State};
+use embassy_stm32::usart::{BufferedUart, Config};
 use embedded_io::asynch::{Read, Write};
 use {defmt_rtt as _, panic_probe as _};
 
@@ -20,20 +20,8 @@ async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.baudrate = 9600;
 
-    let mut state = State::new();
     let irq = interrupt::take!(USART2);
-    let mut usart = unsafe {
-        BufferedUart::new(
-            &mut state,
-            p.USART2,
-            p.PA3,
-            p.PA2,
-            irq,
-            &mut TX_BUFFER,
-            &mut RX_BUFFER,
-            config,
-        )
-    };
+    let mut usart = unsafe { BufferedUart::new(p.USART2, irq, p.PA3, p.PA2, &mut TX_BUFFER, &mut RX_BUFFER, config) };
 
     usart.write_all(b"Hello Embassy World!\r\n").await.unwrap();
     info!("wrote Hello, starting echo");
diff --git a/examples/stm32l1/Cargo.toml b/examples/stm32l1/Cargo.toml
index 6e3b2103c..cd9508d57 100644
--- a/examples/stm32l1/Cargo.toml
+++ b/examples/stm32l1/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32l151cb-a", "time-driver-any", "memory-x"]  }
 
diff --git a/examples/stm32l1/src/bin/flash.rs b/examples/stm32l1/src/bin/flash.rs
index 476ed51a4..38feb0d76 100644
--- a/examples/stm32l1/src/bin/flash.rs
+++ b/examples/stm32l1/src/bin/flash.rs
@@ -15,7 +15,7 @@ async fn main(_spawner: Spawner) {
 
     const ADDR: u32 = 0x26000;
 
-    let mut f = Flash::new(p.FLASH);
+    let mut f = Flash::new(p.FLASH).into_regions().bank1_region;
 
     info!("Reading...");
     let mut buf = [0u8; 8];
diff --git a/examples/stm32l4/Cargo.toml b/examples/stm32l4/Cargo.toml
index 644c90b1a..fa39df6db 100644
--- a/examples/stm32l4/Cargo.toml
+++ b/examples/stm32l4/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-embedded-hal = { version = "0.1.0", path = "../../embassy-embedded-hal" }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "unstable-pac", "stm32l4s5vi", "time-driver-any", "exti", "unstable-traits"]  }
@@ -18,8 +18,8 @@ defmt-rtt = "0.4"
 cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
-embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-alpha.9" }
-embedded-hal-async = { version = "=0.2.0-alpha.0" }
+embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-alpha.10" }
+embedded-hal-async = { version = "=0.2.0-alpha.1" }
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 heapless = { version = "0.7.5", default-features = false }
diff --git a/examples/stm32l4/src/bin/mco.rs b/examples/stm32l4/src/bin/mco.rs
new file mode 100644
index 000000000..dea0c66e0
--- /dev/null
+++ b/examples/stm32l4/src/bin/mco.rs
@@ -0,0 +1,27 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::gpio::{Level, Output, Speed};
+use embassy_stm32::rcc::{Mco, Mco1Source, McoClock};
+use embassy_time::{Duration, 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 _mco = Mco::new(p.MCO, p.PA8, Mco1Source::Hsi16, McoClock::DIV1);
+
+    let mut led = Output::new(p.PB14, Level::High, Speed::Low);
+
+    loop {
+        led.set_high();
+        Timer::after(Duration::from_millis(300)).await;
+        led.set_low();
+        Timer::after(Duration::from_millis(300)).await;
+    }
+}
diff --git a/examples/stm32l5/Cargo.toml b/examples/stm32l5/Cargo.toml
index f880328dc..1c662b9da 100644
--- a/examples/stm32l5/Cargo.toml
+++ b/examples/stm32l5/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "unstable-pac", "stm32l552ze", "time-driver-any", "exti", "unstable-traits", "memory-x"]  }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
diff --git a/examples/stm32u5/Cargo.toml b/examples/stm32u5/Cargo.toml
index 2b02eda92..ebef0a4f7 100644
--- a/examples/stm32u5/Cargo.toml
+++ b/examples/stm32u5/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "unstable-pac", "stm32u585ai", "time-driver-any", "memory-x" ]  }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
diff --git a/examples/stm32wb/Cargo.toml b/examples/stm32wb/Cargo.toml
index e27b4527c..ddf9729e6 100644
--- a/examples/stm32wb/Cargo.toml
+++ b/examples/stm32wb/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32wb55cc", "time-driver-any", "exti"]  }
 
diff --git a/examples/stm32wl/Cargo.toml b/examples/stm32wl/Cargo.toml
index 690481bbf..0d2194ea2 100644
--- a/examples/stm32wl/Cargo.toml
+++ b/examples/stm32wl/Cargo.toml
@@ -6,9 +6,9 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32wl55jc-cm4", "time-driver-any", "memory-x", "subghz", "unstable-pac", "exti"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32wl55jc-cm4", "time-driver-any", "memory-x", "unstable-pac", "exti"]  }
 embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["stm32wl", "time", "defmt"] }
 
 lorawan-device = { version = "0.8.0", default-features = false, features = ["async"] }
diff --git a/examples/stm32wl/src/bin/flash.rs b/examples/stm32wl/src/bin/flash.rs
index 2a8880624..e6bc2865c 100644
--- a/examples/stm32wl/src/bin/flash.rs
+++ b/examples/stm32wl/src/bin/flash.rs
@@ -15,7 +15,7 @@ async fn main(_spawner: Spawner) {
 
     const ADDR: u32 = 0x36000;
 
-    let mut f = Flash::new(p.FLASH);
+    let mut f = Flash::new(p.FLASH).into_regions().bank1_region;
 
     info!("Reading...");
     let mut buf = [0u8; 8];
diff --git a/examples/wasm/Cargo.toml b/examples/wasm/Cargo.toml
index e0e799a34..430d0b4c7 100644
--- a/examples/wasm/Cargo.toml
+++ b/examples/wasm/Cargo.toml
@@ -9,7 +9,7 @@ crate-type = ["cdylib"]
 
 [dependencies]
 embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["log"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["log", "wasm", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["arch-wasm", "executor-thread", "log", "nightly", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["log", "wasm", "nightly"] }
 
 wasm-logger = "0.2.0"