Merge branch 'master' of https://github.com/embassy-rs/embassy into rtos-trace

198 files changed, 1024 insertions, 776 deletions

diff --git a/examples/boot/application/nrf/Cargo.toml b/examples/boot/application/nrf/Cargo.toml
index dd9bcc093..ef9346639 100644
--- a/examples/boot/application/nrf/Cargo.toml
+++ b/examples/boot/application/nrf/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../../../embassy-util" }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+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", "nrf52840"] }
 embassy-boot-nrf = { version = "0.1.0", path = "../../../../embassy-boot/nrf" }
 embassy-embedded-hal = { version = "0.1.0", path = "../../../../embassy-embedded-hal" }
@@ -15,5 +16,5 @@ defmt-rtt = { version = "0.3", optional = true }
 panic-reset = { version = "0.1.1" }
 embedded-hal = { version = "0.2.6" }
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
diff --git a/examples/boot/application/nrf/src/bin/a.rs b/examples/boot/application/nrf/src/bin/a.rs
index 3044645a8..bd8fa3246 100644
--- a/examples/boot/application/nrf/src/bin/a.rs
+++ b/examples/boot/application/nrf/src/bin/a.rs
@@ -6,15 +6,16 @@
 
 use embassy_boot_nrf::FirmwareUpdater;
 use embassy_embedded_hal::adapter::BlockingAsync;
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull};
 use embassy_nrf::nvmc::Nvmc;
-use embassy_nrf::Peripherals;
 use panic_reset as _;
 
 static APP_B: &[u8] = include_bytes!("../../b.bin");
 
 #[embassy_executor::main]
-async fn main(_s: embassy_executor::executor::Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let mut button = Input::new(p.P0_11, Pull::Up);
     let mut led = Output::new(p.P0_13, Level::Low, OutputDrive::Standard);
     //let mut led = Output::new(p.P1_10, Level::Low, OutputDrive::Standard);
diff --git a/examples/boot/application/nrf/src/bin/b.rs b/examples/boot/application/nrf/src/bin/b.rs
index 2f76d20c6..5394bf0c7 100644
--- a/examples/boot/application/nrf/src/bin/b.rs
+++ b/examples/boot/application/nrf/src/bin/b.rs
@@ -4,13 +4,14 @@
 #![feature(generic_associated_types)]
 #![feature(type_alias_impl_trait)]
 
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Level, Output, OutputDrive};
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 #[embassy_executor::main]
-async fn main(_s: embassy_executor::executor::Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let mut led = Output::new(p.P0_13, Level::Low, OutputDrive::Standard);
     //let mut led = Output::new(p.P1_10, Level::Low, OutputDrive::Standard);
 
diff --git a/examples/boot/application/stm32f3/Cargo.toml b/examples/boot/application/stm32f3/Cargo.toml
index 313808a0d..27eafa653 100644
--- a/examples/boot/application/stm32f3/Cargo.toml
+++ b/examples/boot/application/stm32f3/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-32768hz"] }
 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" }
 embassy-embedded-hal = { version = "0.1.0", path = "../../../../embassy-embedded-hal" }
@@ -15,7 +16,7 @@ defmt-rtt = { version = "0.3", optional = true }
 panic-reset = { version = "0.1.1" }
 embedded-hal = { version = "0.2.6" }
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 
 [features]
diff --git a/examples/boot/application/stm32f3/src/bin/a.rs b/examples/boot/application/stm32f3/src/bin/a.rs
index fd18e9373..11eecc5e2 100644
--- a/examples/boot/application/stm32f3/src/bin/a.rs
+++ b/examples/boot/application/stm32f3/src/bin/a.rs
@@ -6,16 +6,17 @@
 use defmt_rtt::*;
 use embassy_boot_stm32::FirmwareUpdater;
 use embassy_embedded_hal::adapter::BlockingAsync;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::flash::Flash;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
-use embassy_stm32::Peripherals;
 use panic_reset as _;
 
 static APP_B: &[u8] = include_bytes!("../../b.bin");
 
 #[embassy_executor::main]
-async fn main(_s: embassy_executor::executor::Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let flash = Flash::unlock(p.FLASH);
     let mut flash = BlockingAsync::new(flash);
 
diff --git a/examples/boot/application/stm32f3/src/bin/b.rs b/examples/boot/application/stm32f3/src/bin/b.rs
index 934f862d9..a5862b1b0 100644
--- a/examples/boot/application/stm32f3/src/bin/b.rs
+++ b/examples/boot/application/stm32f3/src/bin/b.rs
@@ -4,14 +4,14 @@
 
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let mut led = Output::new(p.PA5, Level::High, Speed::Low);
 
     loop {
diff --git a/examples/boot/application/stm32f7/Cargo.toml b/examples/boot/application/stm32f7/Cargo.toml
index 2a4741dc7..7de0b82d7 100644
--- a/examples/boot/application/stm32f7/Cargo.toml
+++ b/examples/boot/application/stm32f7/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-32768hz"] }
 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" }
 embassy-embedded-hal = { version = "0.1.0", path = "../../../../embassy-embedded-hal" }
@@ -15,7 +16,7 @@ defmt-rtt = { version = "0.3", optional = true }
 panic-reset = { version = "0.1.1" }
 embedded-hal = { version = "0.2.6" }
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 
 [features]
diff --git a/examples/boot/application/stm32f7/src/bin/a.rs b/examples/boot/application/stm32f7/src/bin/a.rs
index 10d709cfd..a3b66e7c9 100644
--- a/examples/boot/application/stm32f7/src/bin/a.rs
+++ b/examples/boot/application/stm32f7/src/bin/a.rs
@@ -6,16 +6,17 @@
 use defmt_rtt::*;
 use embassy_boot_stm32::FirmwareUpdater;
 use embassy_embedded_hal::adapter::BlockingAsync;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::flash::Flash;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
-use embassy_stm32::Peripherals;
 use panic_reset as _;
 
 static APP_B: &[u8] = include_bytes!("../../b.bin");
 
 #[embassy_executor::main]
-async fn main(_s: embassy_executor::executor::Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let flash = Flash::unlock(p.FLASH);
     let mut flash = BlockingAsync::new(flash);
 
diff --git a/examples/boot/application/stm32f7/src/bin/b.rs b/examples/boot/application/stm32f7/src/bin/b.rs
index c89e8a310..16c94d845 100644
--- a/examples/boot/application/stm32f7/src/bin/b.rs
+++ b/examples/boot/application/stm32f7/src/bin/b.rs
@@ -4,14 +4,14 @@
 
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     Timer::after(Duration::from_millis(300)).await;
     let mut led = Output::new(p.PB7, Level::High, Speed::Low);
     led.set_high();
diff --git a/examples/boot/application/stm32h7/Cargo.toml b/examples/boot/application/stm32h7/Cargo.toml
index c6420e8ad..65d34c70b 100644
--- a/examples/boot/application/stm32h7/Cargo.toml
+++ b/examples/boot/application/stm32h7/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-32768hz"] }
 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" }
 embassy-embedded-hal = { version = "0.1.0", path = "../../../../embassy-embedded-hal" }
@@ -15,7 +16,7 @@ defmt-rtt = { version = "0.3", optional = true }
 panic-reset = { version = "0.1.1" }
 embedded-hal = { version = "0.2.6" }
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 
 [features]
diff --git a/examples/boot/application/stm32h7/src/bin/a.rs b/examples/boot/application/stm32h7/src/bin/a.rs
index cc363bb32..0ecf60348 100644
--- a/examples/boot/application/stm32h7/src/bin/a.rs
+++ b/examples/boot/application/stm32h7/src/bin/a.rs
@@ -6,16 +6,17 @@
 use defmt_rtt::*;
 use embassy_boot_stm32::FirmwareUpdater;
 use embassy_embedded_hal::adapter::BlockingAsync;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::flash::Flash;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
-use embassy_stm32::Peripherals;
 use panic_reset as _;
 
 static APP_B: &[u8] = include_bytes!("../../b.bin");
 
 #[embassy_executor::main]
-async fn main(_s: embassy_executor::executor::Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let flash = Flash::unlock(p.FLASH);
     let mut flash = BlockingAsync::new(flash);
 
diff --git a/examples/boot/application/stm32h7/src/bin/b.rs b/examples/boot/application/stm32h7/src/bin/b.rs
index 3fa63bdcf..34799279c 100644
--- a/examples/boot/application/stm32h7/src/bin/b.rs
+++ b/examples/boot/application/stm32h7/src/bin/b.rs
@@ -4,14 +4,14 @@
 
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     Timer::after(Duration::from_millis(300)).await;
     let mut led = Output::new(p.PB14, Level::High, Speed::Low);
     led.set_high();
diff --git a/examples/boot/application/stm32l0/Cargo.toml b/examples/boot/application/stm32l0/Cargo.toml
index a6936419c..8f37869e3 100644
--- a/examples/boot/application/stm32l0/Cargo.toml
+++ b/examples/boot/application/stm32l0/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-32768hz"] }
 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" }
 embassy-embedded-hal = { version = "0.1.0", path = "../../../../embassy-embedded-hal" }
@@ -15,7 +16,7 @@ defmt-rtt = { version = "0.3", optional = true }
 panic-reset = { version = "0.1.1" }
 embedded-hal = { version = "0.2.6" }
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 
 [features]
diff --git a/examples/boot/application/stm32l0/src/bin/a.rs b/examples/boot/application/stm32l0/src/bin/a.rs
index fcf3f2ef1..f4f1d7119 100644
--- a/examples/boot/application/stm32l0/src/bin/a.rs
+++ b/examples/boot/application/stm32l0/src/bin/a.rs
@@ -6,17 +6,18 @@
 use defmt_rtt::*;
 use embassy_boot_stm32::FirmwareUpdater;
 use embassy_embedded_hal::adapter::BlockingAsync;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::flash::Flash;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 static APP_B: &[u8] = include_bytes!("../../b.bin");
 
 #[embassy_executor::main]
-async fn main(_s: embassy_executor::executor::Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let flash = Flash::unlock(p.FLASH);
     let mut flash = BlockingAsync::new(flash);
 
diff --git a/examples/boot/application/stm32l0/src/bin/b.rs b/examples/boot/application/stm32l0/src/bin/b.rs
index 46e394c4c..ee40274ff 100644
--- a/examples/boot/application/stm32l0/src/bin/b.rs
+++ b/examples/boot/application/stm32l0/src/bin/b.rs
@@ -4,14 +4,14 @@
 
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let mut led = Output::new(p.PB6, Level::High, Speed::Low);
 
     loop {
diff --git a/examples/boot/application/stm32l1/Cargo.toml b/examples/boot/application/stm32l1/Cargo.toml
index 5e53cd5f6..6abf1986d 100644
--- a/examples/boot/application/stm32l1/Cargo.toml
+++ b/examples/boot/application/stm32l1/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-32768hz"] }
 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" }
 embassy-embedded-hal = { version = "0.1.0", path = "../../../../embassy-embedded-hal" }
@@ -15,7 +16,7 @@ defmt-rtt = { version = "0.3", optional = true }
 panic-reset = { version = "0.1.1" }
 embedded-hal = { version = "0.2.6" }
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 
 [features]
diff --git a/examples/boot/application/stm32l1/src/bin/a.rs b/examples/boot/application/stm32l1/src/bin/a.rs
index fcf3f2ef1..f4f1d7119 100644
--- a/examples/boot/application/stm32l1/src/bin/a.rs
+++ b/examples/boot/application/stm32l1/src/bin/a.rs
@@ -6,17 +6,18 @@
 use defmt_rtt::*;
 use embassy_boot_stm32::FirmwareUpdater;
 use embassy_embedded_hal::adapter::BlockingAsync;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::flash::Flash;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 static APP_B: &[u8] = include_bytes!("../../b.bin");
 
 #[embassy_executor::main]
-async fn main(_s: embassy_executor::executor::Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let flash = Flash::unlock(p.FLASH);
     let mut flash = BlockingAsync::new(flash);
 
diff --git a/examples/boot/application/stm32l1/src/bin/b.rs b/examples/boot/application/stm32l1/src/bin/b.rs
index 46e394c4c..ee40274ff 100644
--- a/examples/boot/application/stm32l1/src/bin/b.rs
+++ b/examples/boot/application/stm32l1/src/bin/b.rs
@@ -4,14 +4,14 @@
 
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let mut led = Output::new(p.PB6, Level::High, Speed::Low);
 
     loop {
diff --git a/examples/boot/application/stm32l4/Cargo.toml b/examples/boot/application/stm32l4/Cargo.toml
index bbb5e7e1d..6f2d12ff1 100644
--- a/examples/boot/application/stm32l4/Cargo.toml
+++ b/examples/boot/application/stm32l4/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-32768hz"] }
 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" }
 embassy-embedded-hal = { version = "0.1.0", path = "../../../../embassy-embedded-hal" }
@@ -15,7 +16,7 @@ defmt-rtt = { version = "0.3", optional = true }
 panic-reset = { version = "0.1.1" }
 embedded-hal = { version = "0.2.6" }
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 
 [features]
diff --git a/examples/boot/application/stm32l4/src/bin/a.rs b/examples/boot/application/stm32l4/src/bin/a.rs
index f092f0239..178b2e04a 100644
--- a/examples/boot/application/stm32l4/src/bin/a.rs
+++ b/examples/boot/application/stm32l4/src/bin/a.rs
@@ -6,16 +6,17 @@
 use defmt_rtt::*;
 use embassy_boot_stm32::FirmwareUpdater;
 use embassy_embedded_hal::adapter::BlockingAsync;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::flash::Flash;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
-use embassy_stm32::Peripherals;
 use panic_reset as _;
 
 static APP_B: &[u8] = include_bytes!("../../b.bin");
 
 #[embassy_executor::main]
-async fn main(_s: embassy_executor::executor::Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let flash = Flash::unlock(p.FLASH);
     let mut flash = BlockingAsync::new(flash);
 
diff --git a/examples/boot/application/stm32l4/src/bin/b.rs b/examples/boot/application/stm32l4/src/bin/b.rs
index 934f862d9..a5862b1b0 100644
--- a/examples/boot/application/stm32l4/src/bin/b.rs
+++ b/examples/boot/application/stm32l4/src/bin/b.rs
@@ -4,14 +4,14 @@
 
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let mut led = Output::new(p.PA5, Level::High, Speed::Low);
 
     loop {
diff --git a/examples/boot/application/stm32wl/Cargo.toml b/examples/boot/application/stm32wl/Cargo.toml
index 62123a870..be97d4ebb 100644
--- a/examples/boot/application/stm32wl/Cargo.toml
+++ b/examples/boot/application/stm32wl/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../../../embassy-executor", features = ["nightly", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../../../embassy-time", features = ["nightly", "tick-32768hz"] }
 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" }
 embassy-embedded-hal = { version = "0.1.0", path = "../../../../embassy-embedded-hal" }
@@ -15,7 +16,7 @@ defmt-rtt = { version = "0.3", optional = true }
 panic-reset = { version = "0.1.1" }
 embedded-hal = { version = "0.2.6" }
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 
 [features]
diff --git a/examples/boot/application/stm32wl/src/bin/a.rs b/examples/boot/application/stm32wl/src/bin/a.rs
index 14408a90a..c71a42654 100644
--- a/examples/boot/application/stm32wl/src/bin/a.rs
+++ b/examples/boot/application/stm32wl/src/bin/a.rs
@@ -6,16 +6,17 @@
 use defmt_rtt::*;
 use embassy_boot_stm32::FirmwareUpdater;
 use embassy_embedded_hal::adapter::BlockingAsync;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::flash::Flash;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
-use embassy_stm32::Peripherals;
 use panic_reset as _;
 
 static APP_B: &[u8] = include_bytes!("../../b.bin");
 
 #[embassy_executor::main]
-async fn main(_s: embassy_executor::executor::Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let flash = Flash::unlock(p.FLASH);
     let mut flash = BlockingAsync::new(flash);
 
diff --git a/examples/boot/application/stm32wl/src/bin/b.rs b/examples/boot/application/stm32wl/src/bin/b.rs
index e565fd7c6..f9f0ffc60 100644
--- a/examples/boot/application/stm32wl/src/bin/b.rs
+++ b/examples/boot/application/stm32wl/src/bin/b.rs
@@ -4,14 +4,14 @@
 
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use panic_reset as _;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let mut led = Output::new(p.PB15, Level::High, Speed::Low);
 
     loop {
diff --git a/examples/boot/bootloader/nrf/Cargo.toml b/examples/boot/bootloader/nrf/Cargo.toml
index 9683bff19..aa2a13ecb 100644
--- a/examples/boot/bootloader/nrf/Cargo.toml
+++ b/examples/boot/bootloader/nrf/Cargo.toml
@@ -10,7 +10,7 @@ defmt-rtt = { version = "0.3", optional = true }
 
 embassy-nrf = { path = "../../../../embassy-nrf", default-features = false, features = ["nightly"] }
 embassy-boot-nrf = { path = "../../../../embassy-boot/nrf", default-features = false }
-cortex-m = { version = "0.7" }
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = { version = "0.7" }
 cfg-if = "1.0.0"
 
diff --git a/examples/boot/bootloader/stm32/Cargo.toml b/examples/boot/bootloader/stm32/Cargo.toml
index 4a3319528..491777103 100644
--- a/examples/boot/bootloader/stm32/Cargo.toml
+++ b/examples/boot/bootloader/stm32/Cargo.toml
@@ -10,7 +10,7 @@ defmt-rtt = { version = "0.3", optional = true }
 
 embassy-stm32 = { path = "../../../../embassy-stm32", default-features = false, features = ["nightly"] }
 embassy-boot-stm32 = { path = "../../../../embassy-boot/stm32", default-features = false }
-cortex-m = { version = "0.7" }
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = { version = "0.7" }
 embedded-storage = "0.3.0"
 embedded-storage-async = "0.3.0"
diff --git a/examples/nrf-rtos-trace/Cargo.toml b/examples/nrf-rtos-trace/Cargo.toml
index 9c749a388..dad74235f 100644
--- a/examples/nrf-rtos-trace/Cargo.toml
+++ b/examples/nrf-rtos-trace/Cargo.toml
@@ -5,38 +5,26 @@ version = "0.1.0"
 
 [features]
 default = ["log", "nightly"]
-nightly = ["embassy-executor/nightly", "embassy-nrf/nightly", "embassy-nrf/unstable-traits", "embassy-usb", "embassy-usb-serial", "embassy-usb-hid", "embassy-usb-ncm", "embedded-io/async", "embassy-net"]
+nightly = ["embassy-executor/nightly", "embassy-nrf/nightly", "embassy-nrf/unstable-traits"]
 log = [
     "dep:log",
     "embassy-util/log",
     "embassy-executor/log",
+    "embassy-time/log",
     "embassy-nrf/log",
-    "embassy-net/log",
-    "embassy-usb-ncm/log",
-    # Currently broken:
-    # "embassy-usb/log",
-    # "embassy-usb-serial/log",
-    # "embassy-usb-hid/log",
 ]
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util" }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features=["rtos-trace", "rtos-trace-interrupt"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features=["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"] }
-embassy-net = { version = "0.1.0", path = "../../embassy-net", features = ["tcp", "dhcpv4", "medium-ethernet", "pool-16"], optional = true }
-embassy-usb = { version = "0.1.0", path = "../../embassy-usb", optional = true }
-embassy-usb-serial = { version = "0.1.0", path = "../../embassy-usb-serial", optional = true }
-embassy-usb-hid = { version = "0.1.0", path = "../../embassy-usb-hid", optional = true }
-embassy-usb-ncm = { version = "0.1.0", path = "../../embassy-usb-ncm", optional = true }
-embedded-io = "0.3.0"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "0.3" }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 rand = { version = "0.8.4", default-features = false }
-embedded-storage = "0.3.0"
-usbd-hid = "0.5.2"
 serde = { version = "1.0.136", default-features = false }
 rtos-trace = "0.1.3"
 systemview-target = { version = "0.1.1", features = ["callbacks-app", "callbacks-os", "log", "cortex-m"] }
diff --git a/examples/nrf-rtos-trace/src/bin/rtos_trace.rs b/examples/nrf-rtos-trace/src/bin/rtos_trace.rs
index 5699fe8e2..7d1ad87c8 100644
--- a/examples/nrf-rtos-trace/src/bin/rtos_trace.rs
+++ b/examples/nrf-rtos-trace/src/bin/rtos_trace.rs
@@ -4,9 +4,8 @@
 
 use core::task::Poll;
 
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Instant, Timer};
-use embassy_nrf::Peripherals;
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Instant, Timer};
 #[cfg(feature = "log")]
 use log::*;
 use panic_probe as _;
@@ -55,7 +54,8 @@ async fn run3() {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, _p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let _p = embassy_nrf::init(Default::default());
     LOGGER.init();
     #[cfg(feature = "log")]
     {
diff --git a/examples/nrf/Cargo.toml b/examples/nrf/Cargo.toml
index 91edbd36d..2fcc31221 100644
--- a/examples/nrf/Cargo.toml
+++ b/examples/nrf/Cargo.toml
@@ -9,7 +9,8 @@ nightly = ["embassy-executor/nightly", "embassy-nrf/nightly", "embassy-nrf/unsta
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["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"] }
 embassy-net = { version = "0.1.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "pool-16"], optional = true }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"], optional = true }
@@ -21,7 +22,7 @@ embedded-io = "0.3.0"
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+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"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
diff --git a/examples/nrf/src/bin/awaitable_timer.rs b/examples/nrf/src/bin/awaitable_timer.rs
index f2c1d9fa4..b32af236c 100644
--- a/examples/nrf/src/bin/awaitable_timer.rs
+++ b/examples/nrf/src/bin/awaitable_timer.rs
@@ -3,13 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
+use embassy_nrf::interrupt;
 use embassy_nrf::timer::Timer;
-use embassy_nrf::{interrupt, Peripherals};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let mut t = Timer::new_awaitable(p.TIMER0, interrupt::take!(TIMER0));
     // default frequency is 1MHz, so this triggers every second
     t.cc(0).write(1_000_000);
diff --git a/examples/nrf/src/bin/blinky.rs b/examples/nrf/src/bin/blinky.rs
index 98db6546c..513f6cd82 100644
--- a/examples/nrf/src/bin/blinky.rs
+++ b/examples/nrf/src/bin/blinky.rs
@@ -2,14 +2,14 @@
 #![no_main]
 #![feature(type_alias_impl_trait)]
 
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Level, Output, OutputDrive};
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let mut led = Output::new(p.P0_13, Level::Low, OutputDrive::Standard);
 
     loop {
diff --git a/examples/nrf/src/bin/buffered_uart.rs b/examples/nrf/src/bin/buffered_uart.rs
index f02b7d845..ea566f4b2 100644
--- a/examples/nrf/src/bin/buffered_uart.rs
+++ b/examples/nrf/src/bin/buffered_uart.rs
@@ -3,15 +3,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::buffered_uarte::{BufferedUarte, State};
-use embassy_nrf::{interrupt, uarte, Peripherals};
+use embassy_nrf::{interrupt, uarte};
 use embedded_io::asynch::{BufRead, Write};
 use futures::pin_mut;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+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::BAUD115200;
diff --git a/examples/nrf/src/bin/channel.rs b/examples/nrf/src/bin/channel.rs
index e97c6c5ee..195200988 100644
--- a/examples/nrf/src/bin/channel.rs
+++ b/examples/nrf/src/bin/channel.rs
@@ -3,10 +3,9 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::unwrap;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Level, Output, OutputDrive};
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use embassy_util::blocking_mutex::raw::ThreadModeRawMutex;
 use embassy_util::channel::mpmc::Channel;
 use {defmt_rtt as _, panic_probe as _};
@@ -29,7 +28,8 @@ async fn my_task() {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let mut led = Output::new(p.P0_13, Level::Low, OutputDrive::Standard);
 
     unwrap!(spawner.spawn(my_task()));
diff --git a/examples/nrf/src/bin/channel_sender_receiver.rs b/examples/nrf/src/bin/channel_sender_receiver.rs
index bca7bb248..c9c458aec 100644
--- a/examples/nrf/src/bin/channel_sender_receiver.rs
+++ b/examples/nrf/src/bin/channel_sender_receiver.rs
@@ -3,10 +3,9 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::unwrap;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{AnyPin, Level, Output, OutputDrive, Pin};
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use embassy_util::blocking_mutex::raw::NoopRawMutex;
 use embassy_util::channel::mpmc::{Channel, Receiver, Sender};
 use embassy_util::Forever;
@@ -42,7 +41,8 @@ async fn recv_task(led: AnyPin, receiver: Receiver<'static, NoopRawMutex, LedSta
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let channel = CHANNEL.put(Channel::new());
 
     unwrap!(spawner.spawn(send_task(channel.sender())));
diff --git a/examples/nrf/src/bin/executor_fairness_test.rs b/examples/nrf/src/bin/executor_fairness_test.rs
index b98454936..9ae030d07 100644
--- a/examples/nrf/src/bin/executor_fairness_test.rs
+++ b/examples/nrf/src/bin/executor_fairness_test.rs
@@ -5,9 +5,8 @@
 use core::task::Poll;
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Instant, Timer};
-use embassy_nrf::Peripherals;
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Instant, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::task]
@@ -35,7 +34,8 @@ async fn run3() {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, _p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let _p = embassy_nrf::init(Default::default());
     unwrap!(spawner.spawn(run1()));
     unwrap!(spawner.spawn(run2()));
     unwrap!(spawner.spawn(run3()));
diff --git a/examples/nrf/src/bin/gpiote_channel.rs b/examples/nrf/src/bin/gpiote_channel.rs
index 65c7b4df7..5bfd02465 100644
--- a/examples/nrf/src/bin/gpiote_channel.rs
+++ b/examples/nrf/src/bin/gpiote_channel.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Input, Pull};
 use embassy_nrf::gpiote::{InputChannel, InputChannelPolarity};
-use embassy_nrf::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     info!("Starting!");
 
     let ch1 = InputChannel::new(
diff --git a/examples/nrf/src/bin/gpiote_port.rs b/examples/nrf/src/bin/gpiote_port.rs
index 7746a7f96..0155d539e 100644
--- a/examples/nrf/src/bin/gpiote_port.rs
+++ b/examples/nrf/src/bin/gpiote_port.rs
@@ -3,9 +3,8 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{AnyPin, Input, Pin as _, Pull};
-use embassy_nrf::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::task(pool_size = 4)]
@@ -19,7 +18,8 @@ async fn button_task(n: usize, mut pin: Input<'static, AnyPin>) {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     info!("Starting!");
 
     let btn1 = Input::new(p.P0_11.degrade(), Pull::Up);
diff --git a/examples/nrf/src/bin/multiprio.rs b/examples/nrf/src/bin/multiprio.rs
index 7050da378..b653689a7 100644
--- a/examples/nrf/src/bin/multiprio.rs
+++ b/examples/nrf/src/bin/multiprio.rs
@@ -59,10 +59,10 @@
 
 use cortex_m_rt::entry;
 use defmt::{info, unwrap};
-use embassy_executor::time::{Duration, Instant, Timer};
 use embassy_nrf::executor::{Executor, InterruptExecutor};
 use embassy_nrf::interrupt;
 use embassy_nrf::interrupt::InterruptExt;
+use embassy_time::{Duration, Instant, Timer};
 use embassy_util::Forever;
 use {defmt_rtt as _, panic_probe as _};
 
diff --git a/examples/nrf/src/bin/mutex.rs b/examples/nrf/src/bin/mutex.rs
index 5fe7eadb9..876297883 100644
--- a/examples/nrf/src/bin/mutex.rs
+++ b/examples/nrf/src/bin/mutex.rs
@@ -3,9 +3,8 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
-use embassy_nrf::Peripherals;
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
 use embassy_util::blocking_mutex::raw::ThreadModeRawMutex;
 use embassy_util::mutex::Mutex;
 use {defmt_rtt as _, panic_probe as _};
@@ -30,7 +29,8 @@ async fn my_task() {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, _p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let _p = embassy_nrf::init(Default::default());
     unwrap!(spawner.spawn(my_task()));
 
     loop {
diff --git a/examples/nrf/src/bin/nvmc.rs b/examples/nrf/src/bin/nvmc.rs
index 1d4387de7..75d090fbb 100644
--- a/examples/nrf/src/bin/nvmc.rs
+++ b/examples/nrf/src/bin/nvmc.rs
@@ -3,15 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::nvmc::Nvmc;
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     info!("Hello NVMC!");
 
     // probe-run breaks without this, I'm not sure why.
diff --git a/examples/nrf/src/bin/ppi.rs b/examples/nrf/src/bin/ppi.rs
index 9a60cc0a0..d74ce4064 100644
--- a/examples/nrf/src/bin/ppi.rs
+++ b/examples/nrf/src/bin/ppi.rs
@@ -5,16 +5,16 @@
 use core::future::pending;
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull};
 use embassy_nrf::gpiote::{self, InputChannel, InputChannelPolarity};
 use embassy_nrf::ppi::Ppi;
-use embassy_nrf::Peripherals;
 use gpiote::{OutputChannel, OutputChannelPolarity};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     info!("Starting!");
 
     let button1 = InputChannel::new(
diff --git a/examples/nrf/src/bin/pubsub.rs b/examples/nrf/src/bin/pubsub.rs
index 5f33f3e0b..1d90217f2 100644
--- a/examples/nrf/src/bin/pubsub.rs
+++ b/examples/nrf/src/bin/pubsub.rs
@@ -3,8 +3,8 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::unwrap;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
 use embassy_util::blocking_mutex::raw::ThreadModeRawMutex;
 use embassy_util::channel::pubsub::{DynSubscriber, PubSubChannel, Subscriber};
 use {defmt_rtt as _, panic_probe as _};
@@ -20,7 +20,8 @@ enum Message {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, _p: embassy_nrf::Peripherals) {
+async fn main(spawner: Spawner) {
+    let _p = embassy_nrf::init(Default::default());
     defmt::info!("Hello World!");
 
     // It's good to set up the subscribers before publishing anything.
diff --git a/examples/nrf/src/bin/pwm.rs b/examples/nrf/src/bin/pwm.rs
index c8a083294..1698c0bc8 100644
--- a/examples/nrf/src/bin/pwm.rs
+++ b/examples/nrf/src/bin/pwm.rs
@@ -3,10 +3,9 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::pwm::{Prescaler, SimplePwm};
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 // for i in range(1024): print(int((math.sin(i/512*math.pi)*0.4+0.5)**2*32767), ', ', end='')
@@ -71,7 +70,8 @@ static DUTY: [u16; 1024] = [
 ];
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let mut pwm = SimplePwm::new_4ch(p.PWM0, p.P0_13, p.P0_14, p.P0_16, p.P0_15);
     pwm.set_prescaler(Prescaler::Div1);
     pwm.set_max_duty(32767);
diff --git a/examples/nrf/src/bin/pwm_double_sequence.rs b/examples/nrf/src/bin/pwm_double_sequence.rs
index cfd8db86b..16e50e909 100644
--- a/examples/nrf/src/bin/pwm_double_sequence.rs
+++ b/examples/nrf/src/bin/pwm_double_sequence.rs
@@ -3,16 +3,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::pwm::{
     Config, Prescaler, Sequence, SequenceConfig, SequenceMode, SequencePwm, Sequencer, StartSequence,
 };
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let seq_words_0: [u16; 5] = [1000, 250, 100, 50, 0];
     let seq_words_1: [u16; 4] = [50, 100, 250, 1000];
 
diff --git a/examples/nrf/src/bin/pwm_sequence.rs b/examples/nrf/src/bin/pwm_sequence.rs
index b7a04c036..b9aca9aaa 100644
--- a/examples/nrf/src/bin/pwm_sequence.rs
+++ b/examples/nrf/src/bin/pwm_sequence.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::pwm::{Config, Prescaler, SequenceConfig, SequencePwm, SingleSequenceMode, SingleSequencer};
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let seq_words: [u16; 5] = [1000, 250, 100, 50, 0];
 
     let mut config = Config::default();
diff --git a/examples/nrf/src/bin/pwm_sequence_ppi.rs b/examples/nrf/src/bin/pwm_sequence_ppi.rs
index f5c587c35..6594fa348 100644
--- a/examples/nrf/src/bin/pwm_sequence_ppi.rs
+++ b/examples/nrf/src/bin/pwm_sequence_ppi.rs
@@ -5,16 +5,16 @@
 use core::future::pending;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Input, Pull};
 use embassy_nrf::gpiote::{InputChannel, InputChannelPolarity};
 use embassy_nrf::ppi::Ppi;
 use embassy_nrf::pwm::{Config, Prescaler, SequenceConfig, SequencePwm, SingleSequenceMode, SingleSequencer};
-use embassy_nrf::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let seq_words: [u16; 5] = [1000, 250, 100, 50, 0];
 
     let mut config = Config::default();
diff --git a/examples/nrf/src/bin/pwm_sequence_ws2812b.rs b/examples/nrf/src/bin/pwm_sequence_ws2812b.rs
index d6b3f005c..711c8a17b 100644
--- a/examples/nrf/src/bin/pwm_sequence_ws2812b.rs
+++ b/examples/nrf/src/bin/pwm_sequence_ws2812b.rs
@@ -3,12 +3,11 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::pwm::{
     Config, Prescaler, SequenceConfig, SequenceLoad, SequencePwm, SingleSequenceMode, SingleSequencer,
 };
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 // WS2812B LED light demonstration. Drives just one light.
@@ -27,7 +26,8 @@ const RES: u16 = 0x8000;
 // Provides data to a WS2812b (Neopixel) LED and makes it go blue. The data
 // line is assumed to be P1_05.
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let mut config = Config::default();
     config.sequence_load = SequenceLoad::Common;
     config.prescaler = Prescaler::Div1;
diff --git a/examples/nrf/src/bin/pwm_servo.rs b/examples/nrf/src/bin/pwm_servo.rs
index d28a5a17e..19228f433 100644
--- a/examples/nrf/src/bin/pwm_servo.rs
+++ b/examples/nrf/src/bin/pwm_servo.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::pwm::{Prescaler, SimplePwm};
-use embassy_nrf::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let mut pwm = SimplePwm::new_1ch(p.PWM0, p.P0_05);
     // sg90 microervo requires 50hz or 20ms period
     // set_period can only set down to 125khz so we cant use it directly
diff --git a/examples/nrf/src/bin/qdec.rs b/examples/nrf/src/bin/qdec.rs
index 6bda82f78..600bba07a 100644
--- a/examples/nrf/src/bin/qdec.rs
+++ b/examples/nrf/src/bin/qdec.rs
@@ -3,13 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
+use embassy_nrf::interrupt;
 use embassy_nrf::qdec::{self, Qdec};
-use embassy_nrf::{interrupt, Peripherals};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let irq = interrupt::take!(QDEC);
     let config = qdec::Config::default();
     let mut rotary_enc = Qdec::new(p.QDEC, irq, p.P0_31, p.P0_30, config);
diff --git a/examples/nrf/src/bin/qspi.rs b/examples/nrf/src/bin/qspi.rs
index 57e0fdbe2..bdcf710b8 100644
--- a/examples/nrf/src/bin/qspi.rs
+++ b/examples/nrf/src/bin/qspi.rs
@@ -3,8 +3,8 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{assert_eq, info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_nrf::{interrupt, qspi, Peripherals};
+use embassy_executor::Spawner;
+use embassy_nrf::{interrupt, qspi};
 use {defmt_rtt as _, panic_probe as _};
 
 const PAGE_SIZE: usize = 4096;
@@ -15,7 +15,8 @@ const PAGE_SIZE: usize = 4096;
 struct AlignedBuf([u8; 4096]);
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     // Config for the MX25R64 present in the nRF52840 DK
     let mut config = qspi::Config::default();
     config.read_opcode = qspi::ReadOpcode::READ4IO;
diff --git a/examples/nrf/src/bin/qspi_lowpower.rs b/examples/nrf/src/bin/qspi_lowpower.rs
index 080b27a16..9341a2376 100644
--- a/examples/nrf/src/bin/qspi_lowpower.rs
+++ b/examples/nrf/src/bin/qspi_lowpower.rs
@@ -5,9 +5,9 @@
 use core::mem;
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
-use embassy_nrf::{interrupt, qspi, Peripherals};
+use embassy_executor::Spawner;
+use embassy_nrf::{interrupt, qspi};
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 // Workaround for alignment requirements.
@@ -16,7 +16,8 @@ use {defmt_rtt as _, panic_probe as _};
 struct AlignedBuf([u8; 64]);
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, mut p: Peripherals) {
+async fn main(_p: Spawner) {
+    let mut p = embassy_nrf::init(Default::default());
     let mut irq = interrupt::take!(QSPI);
 
     loop {
diff --git a/examples/nrf/src/bin/raw_spawn.rs b/examples/nrf/src/bin/raw_spawn.rs
index 9199d3aeb..415579be7 100644
--- a/examples/nrf/src/bin/raw_spawn.rs
+++ b/examples/nrf/src/bin/raw_spawn.rs
@@ -5,9 +5,9 @@ use core::mem;
 
 use cortex_m_rt::entry;
 use defmt::{info, unwrap};
-use embassy_executor::executor::raw::TaskStorage;
-use embassy_executor::executor::Executor;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::raw::TaskStorage;
+use embassy_executor::Executor;
+use embassy_time::{Duration, Timer};
 use embassy_util::Forever;
 use {defmt_rtt as _, panic_probe as _};
 
diff --git a/examples/nrf/src/bin/rng.rs b/examples/nrf/src/bin/rng.rs
index a4314e8b9..647073949 100644
--- a/examples/nrf/src/bin/rng.rs
+++ b/examples/nrf/src/bin/rng.rs
@@ -2,14 +2,15 @@
 #![no_main]
 #![feature(type_alias_impl_trait)]
 
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
+use embassy_nrf::interrupt;
 use embassy_nrf::rng::Rng;
-use embassy_nrf::{interrupt, Peripherals};
 use rand::Rng as _;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let mut rng = Rng::new(p.RNG, interrupt::take!(RNG));
 
     // Async API
diff --git a/examples/nrf/src/bin/saadc.rs b/examples/nrf/src/bin/saadc.rs
index 65c78d842..7cf588090 100644
--- a/examples/nrf/src/bin/saadc.rs
+++ b/examples/nrf/src/bin/saadc.rs
@@ -3,14 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
+use embassy_nrf::interrupt;
 use embassy_nrf::saadc::{ChannelConfig, Config, Saadc};
-use embassy_nrf::{interrupt, Peripherals};
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, mut p: Peripherals) {
+async fn main(_p: Spawner) {
+    let mut p = embassy_nrf::init(Default::default());
     let config = Config::default();
     let channel_config = ChannelConfig::single_ended(&mut p.P0_02);
     let mut saadc = Saadc::new(p.SAADC, interrupt::take!(SAADC), config, [channel_config]);
diff --git a/examples/nrf/src/bin/saadc_continuous.rs b/examples/nrf/src/bin/saadc_continuous.rs
index d0305736f..bb50ac65e 100644
--- a/examples/nrf/src/bin/saadc_continuous.rs
+++ b/examples/nrf/src/bin/saadc_continuous.rs
@@ -3,17 +3,18 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::Duration;
+use embassy_executor::Spawner;
+use embassy_nrf::interrupt;
 use embassy_nrf::saadc::{ChannelConfig, Config, Saadc, SamplerState};
 use embassy_nrf::timer::Frequency;
-use embassy_nrf::{interrupt, Peripherals};
+use embassy_time::Duration;
 use {defmt_rtt as _, panic_probe as _};
 
 // Demonstrates both continuous sampling and scanning multiple channels driven by a PPI linked timer
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, mut p: Peripherals) {
+async fn main(_p: Spawner) {
+    let mut p = embassy_nrf::init(Default::default());
     let config = Config::default();
     let channel_1_config = ChannelConfig::single_ended(&mut p.P0_02);
     let channel_2_config = ChannelConfig::single_ended(&mut p.P0_03);
@@ -27,7 +28,7 @@ async fn main(_spawner: Spawner, mut p: Peripherals) {
 
     // This delay demonstrates that starting the timer prior to running
     // the task sampler is benign given the calibration that follows.
-    embassy_executor::time::Timer::after(Duration::from_millis(500)).await;
+    embassy_time::Timer::after(Duration::from_millis(500)).await;
     saadc.calibrate().await;
 
     let mut bufs = [[[0; 3]; 500]; 2];
diff --git a/examples/nrf/src/bin/self_spawn.rs b/examples/nrf/src/bin/self_spawn.rs
index e0152802e..196255a52 100644
--- a/examples/nrf/src/bin/self_spawn.rs
+++ b/examples/nrf/src/bin/self_spawn.rs
@@ -3,9 +3,8 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
-use embassy_nrf::Peripherals;
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::task(pool_size = 2)]
@@ -16,7 +15,8 @@ async fn my_task(spawner: Spawner, n: u32) {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, _p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let _p = embassy_nrf::init(Default::default());
     info!("Hello World!");
     unwrap!(spawner.spawn(my_task(spawner, 0)));
 }
diff --git a/examples/nrf/src/bin/self_spawn_current_executor.rs b/examples/nrf/src/bin/self_spawn_current_executor.rs
index 1d8309d77..8a179886c 100644
--- a/examples/nrf/src/bin/self_spawn_current_executor.rs
+++ b/examples/nrf/src/bin/self_spawn_current_executor.rs
@@ -3,9 +3,8 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
-use embassy_nrf::Peripherals;
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::task(pool_size = 2)]
@@ -16,7 +15,8 @@ async fn my_task(n: u32) {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, _p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let _p = embassy_nrf::init(Default::default());
     info!("Hello World!");
     unwrap!(spawner.spawn(my_task(0)));
 }
diff --git a/examples/nrf/src/bin/spim.rs b/examples/nrf/src/bin/spim.rs
index fd741b21c..132e01660 100644
--- a/examples/nrf/src/bin/spim.rs
+++ b/examples/nrf/src/bin/spim.rs
@@ -3,13 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Level, Output, OutputDrive};
-use embassy_nrf::{interrupt, spim, Peripherals};
+use embassy_nrf::{interrupt, spim};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     info!("running!");
 
     let mut config = spim::Config::default();
diff --git a/examples/nrf/src/bin/temp.rs b/examples/nrf/src/bin/temp.rs
index 654098e0b..b06ac709e 100644
--- a/examples/nrf/src/bin/temp.rs
+++ b/examples/nrf/src/bin/temp.rs
@@ -3,14 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
+use embassy_nrf::interrupt;
 use embassy_nrf::temp::Temp;
-use embassy_nrf::{interrupt, Peripherals};
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let irq = interrupt::take!(TEMP);
     let mut temp = Temp::new(p.TEMP, irq);
 
diff --git a/examples/nrf/src/bin/timer.rs b/examples/nrf/src/bin/timer.rs
index 61ff1d6db..c22b5acd5 100644
--- a/examples/nrf/src/bin/timer.rs
+++ b/examples/nrf/src/bin/timer.rs
@@ -3,9 +3,8 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
-use embassy_nrf::Peripherals;
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::task]
@@ -25,7 +24,8 @@ async fn run2() {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, _p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let _p = embassy_nrf::init(Default::default());
     unwrap!(spawner.spawn(run1()));
     unwrap!(spawner.spawn(run2()));
 }
diff --git a/examples/nrf/src/bin/twim.rs b/examples/nrf/src/bin/twim.rs
index bb7ee9db4..a027cc1e7 100644
--- a/examples/nrf/src/bin/twim.rs
+++ b/examples/nrf/src/bin/twim.rs
@@ -7,15 +7,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
+use embassy_nrf::interrupt;
 use embassy_nrf::twim::{self, Twim};
-use embassy_nrf::{interrupt, Peripherals};
 use {defmt_rtt as _, panic_probe as _};
 
 const ADDRESS: u8 = 0x50;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     info!("Initializing TWI...");
     let config = twim::Config::default();
     let irq = interrupt::take!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
diff --git a/examples/nrf/src/bin/twim_lowpower.rs b/examples/nrf/src/bin/twim_lowpower.rs
index ebf3d7109..e30cc9688 100644
--- a/examples/nrf/src/bin/twim_lowpower.rs
+++ b/examples/nrf/src/bin/twim_lowpower.rs
@@ -11,16 +11,17 @@
 use core::mem;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
+use embassy_nrf::interrupt;
 use embassy_nrf::twim::{self, Twim};
-use embassy_nrf::{interrupt, Peripherals};
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 const ADDRESS: u8 = 0x50;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, mut p: Peripherals) {
+async fn main(_p: Spawner) {
+    let mut p = embassy_nrf::init(Default::default());
     info!("Started!");
     let mut irq = interrupt::take!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
 
diff --git a/examples/nrf/src/bin/uart.rs b/examples/nrf/src/bin/uart.rs
index 5f363b69e..600f7a6ef 100644
--- a/examples/nrf/src/bin/uart.rs
+++ b/examples/nrf/src/bin/uart.rs
@@ -3,12 +3,13 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_nrf::{interrupt, uarte, Peripherals};
+use embassy_executor::Spawner;
+use embassy_nrf::{interrupt, uarte};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+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::BAUD115200;
diff --git a/examples/nrf/src/bin/uart_idle.rs b/examples/nrf/src/bin/uart_idle.rs
index 0f455dffd..09ec624c0 100644
--- a/examples/nrf/src/bin/uart_idle.rs
+++ b/examples/nrf/src/bin/uart_idle.rs
@@ -3,12 +3,13 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_nrf::{interrupt, uarte, Peripherals};
+use embassy_executor::Spawner;
+use embassy_nrf::{interrupt, uarte};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+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::BAUD115200;
diff --git a/examples/nrf/src/bin/uart_split.rs b/examples/nrf/src/bin/uart_split.rs
index 2de5f90c1..dab8e475d 100644
--- a/examples/nrf/src/bin/uart_split.rs
+++ b/examples/nrf/src/bin/uart_split.rs
@@ -3,10 +3,10 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::peripherals::UARTE0;
 use embassy_nrf::uarte::UarteRx;
-use embassy_nrf::{interrupt, uarte, Peripherals};
+use embassy_nrf::{interrupt, uarte};
 use embassy_util::blocking_mutex::raw::ThreadModeRawMutex;
 use embassy_util::channel::mpmc::Channel;
 use {defmt_rtt as _, panic_probe as _};
@@ -14,7 +14,8 @@ use {defmt_rtt as _, panic_probe as _};
 static CHANNEL: Channel<ThreadModeRawMutex, [u8; 8], 1> = Channel::new();
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, p: Peripherals) {
+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::BAUD115200;
diff --git a/examples/nrf/src/bin/usb_ethernet.rs b/examples/nrf/src/bin/usb_ethernet.rs
index 93cb05907..f0a870317 100644
--- a/examples/nrf/src/bin/usb_ethernet.rs
+++ b/examples/nrf/src/bin/usb_ethernet.rs
@@ -8,12 +8,12 @@ use core::sync::atomic::{AtomicBool, Ordering};
 use core::task::Waker;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_net::tcp::TcpSocket;
 use embassy_net::{PacketBox, PacketBoxExt, PacketBuf, Stack, StackResources};
 use embassy_nrf::rng::Rng;
 use embassy_nrf::usb::{Driver, PowerUsb};
-use embassy_nrf::{interrupt, pac, peripherals, Peripherals};
+use embassy_nrf::{interrupt, pac, peripherals};
 use embassy_usb::{Builder, Config, UsbDevice};
 use embassy_usb_ncm::{CdcNcmClass, Receiver, Sender, State};
 use embassy_util::blocking_mutex::raw::ThreadModeRawMutex;
@@ -82,7 +82,8 @@ async fn net_task(stack: &'static Stack<Device>) -> ! {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let clock: pac::CLOCK = unsafe { mem::transmute(()) };
 
     info!("Enabling ext hfosc...");
diff --git a/examples/nrf/src/bin/usb_hid_keyboard.rs b/examples/nrf/src/bin/usb_hid_keyboard.rs
index 863f3e5dd..cf0078eec 100644
--- a/examples/nrf/src/bin/usb_hid_keyboard.rs
+++ b/examples/nrf/src/bin/usb_hid_keyboard.rs
@@ -7,10 +7,10 @@ use core::mem;
 use core::sync::atomic::{AtomicBool, Ordering};
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Input, Pin, Pull};
 use embassy_nrf::usb::{Driver, PowerUsb};
-use embassy_nrf::{interrupt, pac, Peripherals};
+use embassy_nrf::{interrupt, pac};
 use embassy_usb::control::OutResponse;
 use embassy_usb::{Builder, Config, DeviceStateHandler};
 use embassy_usb_hid::{HidReaderWriter, ReportId, RequestHandler, State};
@@ -23,7 +23,8 @@ use {defmt_rtt as _, panic_probe as _};
 static SUSPENDED: AtomicBool = AtomicBool::new(false);
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let clock: pac::CLOCK = unsafe { mem::transmute(()) };
 
     info!("Enabling ext hfosc...");
diff --git a/examples/nrf/src/bin/usb_hid_mouse.rs b/examples/nrf/src/bin/usb_hid_mouse.rs
index 88bf87bd6..7cd2ece17 100644
--- a/examples/nrf/src/bin/usb_hid_mouse.rs
+++ b/examples/nrf/src/bin/usb_hid_mouse.rs
@@ -6,10 +6,10 @@
 use core::mem;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_nrf::usb::{Driver, PowerUsb};
-use embassy_nrf::{interrupt, pac, Peripherals};
+use embassy_nrf::{interrupt, pac};
+use embassy_time::{Duration, Timer};
 use embassy_usb::control::OutResponse;
 use embassy_usb::{Builder, Config};
 use embassy_usb_hid::{HidWriter, ReportId, RequestHandler, State};
@@ -18,7 +18,8 @@ use usbd_hid::descriptor::{MouseReport, SerializedDescriptor};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let clock: pac::CLOCK = unsafe { mem::transmute(()) };
 
     info!("Enabling ext hfosc...");
diff --git a/examples/nrf/src/bin/usb_serial.rs b/examples/nrf/src/bin/usb_serial.rs
index 7d233d24d..a68edb329 100644
--- a/examples/nrf/src/bin/usb_serial.rs
+++ b/examples/nrf/src/bin/usb_serial.rs
@@ -6,9 +6,9 @@
 use core::mem;
 
 use defmt::{info, panic};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::usb::{Driver, Instance, PowerUsb, UsbSupply};
-use embassy_nrf::{interrupt, pac, Peripherals};
+use embassy_nrf::{interrupt, pac};
 use embassy_usb::driver::EndpointError;
 use embassy_usb::{Builder, Config};
 use embassy_usb_serial::{CdcAcmClass, State};
@@ -16,7 +16,8 @@ use futures::future::join;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let clock: pac::CLOCK = unsafe { mem::transmute(()) };
 
     info!("Enabling ext hfosc...");
diff --git a/examples/nrf/src/bin/usb_serial_multitask.rs b/examples/nrf/src/bin/usb_serial_multitask.rs
index 956315322..4c1a93087 100644
--- a/examples/nrf/src/bin/usb_serial_multitask.rs
+++ b/examples/nrf/src/bin/usb_serial_multitask.rs
@@ -6,9 +6,9 @@
 use core::mem;
 
 use defmt::{info, panic, unwrap};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::usb::{Driver, PowerUsb};
-use embassy_nrf::{interrupt, pac, peripherals, Peripherals};
+use embassy_nrf::{interrupt, pac, peripherals};
 use embassy_usb::driver::EndpointError;
 use embassy_usb::{Builder, Config, UsbDevice};
 use embassy_usb_serial::{CdcAcmClass, State};
@@ -33,7 +33,8 @@ async fn echo_task(mut class: CdcAcmClass<'static, MyDriver>) {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     let clock: pac::CLOCK = unsafe { mem::transmute(()) };
 
     info!("Enabling ext hfosc...");
diff --git a/examples/nrf/src/bin/wdt.rs b/examples/nrf/src/bin/wdt.rs
index 560cb3567..b0b9c3b81 100644
--- a/examples/nrf/src/bin/wdt.rs
+++ b/examples/nrf/src/bin/wdt.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Input, Pull};
 use embassy_nrf::wdt::{Config, Watchdog};
-use embassy_nrf::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
     info!("Hello World!");
 
     let mut config = Config::default();
diff --git a/examples/rp/Cargo.toml b/examples/rp/Cargo.toml
index 94c3d8013..c2dcf429a 100644
--- a/examples/rp/Cargo.toml
+++ b/examples/rp/Cargo.toml
@@ -6,14 +6,14 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["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"] }
-atomic-polyfill = "0.1.5"
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+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"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await", "cfg-target-has-atomic", "unstable"] }
diff --git a/examples/rp/src/bin/blinky.rs b/examples/rp/src/bin/blinky.rs
index e53fca1af..7aa36a19f 100644
--- a/examples/rp/src/bin/blinky.rs
+++ b/examples/rp/src/bin/blinky.rs
@@ -3,14 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
-use embassy_rp::{gpio, Peripherals};
+use embassy_executor::Spawner;
+use embassy_rp::gpio;
+use embassy_time::{Duration, Timer};
 use gpio::{Level, Output};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
     let mut led = Output::new(p.PIN_25, Level::Low);
 
     loop {
diff --git a/examples/rp/src/bin/button.rs b/examples/rp/src/bin/button.rs
index 02cbc9416..c5422c616 100644
--- a/examples/rp/src/bin/button.rs
+++ b/examples/rp/src/bin/button.rs
@@ -2,13 +2,13 @@
 #![no_main]
 #![feature(type_alias_impl_trait)]
 
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_rp::gpio::{Input, Level, Output, Pull};
-use embassy_rp::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
     let button = Input::new(p.PIN_28, Pull::Up);
     let mut led = Output::new(p.PIN_25, Level::Low);
 
diff --git a/examples/rp/src/bin/gpio_async.rs b/examples/rp/src/bin/gpio_async.rs
index ba905b015..52d13a9d5 100644
--- a/examples/rp/src/bin/gpio_async.rs
+++ b/examples/rp/src/bin/gpio_async.rs
@@ -3,9 +3,9 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
-use embassy_rp::{gpio, Peripherals};
+use embassy_executor::Spawner;
+use embassy_rp::gpio;
+use embassy_time::{Duration, Timer};
 use gpio::{Input, Level, Output, Pull};
 use {defmt_rtt as _, panic_probe as _};
 
@@ -20,7 +20,8 @@ use {defmt_rtt as _, panic_probe as _};
 /// continue and turn off the LED, and then wait for 2 seconds before completing
 /// the loop and starting over again.
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
     let mut led = Output::new(p.PIN_25, Level::Low);
     let mut async_input = Input::new(p.PIN_16, Pull::None);
 
diff --git a/examples/rp/src/bin/spi.rs b/examples/rp/src/bin/spi.rs
index a3160c106..88003ee17 100644
--- a/examples/rp/src/bin/spi.rs
+++ b/examples/rp/src/bin/spi.rs
@@ -3,14 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_rp::spi::Spi;
-use embassy_rp::{gpio, spi, Peripherals};
+use embassy_rp::{gpio, spi};
 use gpio::{Level, Output};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
     info!("Hello World!");
 
     // Example for resistive touch sensor in Waveshare Pico-ResTouch
diff --git a/examples/rp/src/bin/spi_display.rs b/examples/rp/src/bin/spi_display.rs
index 2760b23fa..f0e54d87f 100644
--- a/examples/rp/src/bin/spi_display.rs
+++ b/examples/rp/src/bin/spi_display.rs
@@ -5,11 +5,11 @@
 use core::cell::RefCell;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::Delay;
+use embassy_executor::Spawner;
 use embassy_rp::gpio::{Level, Output};
+use embassy_rp::spi;
 use embassy_rp::spi::Spi;
-use embassy_rp::{spi, Peripherals};
+use embassy_time::Delay;
 use embedded_graphics::image::{Image, ImageRawLE};
 use embedded_graphics::mono_font::ascii::FONT_10X20;
 use embedded_graphics::mono_font::MonoTextStyle;
@@ -28,7 +28,8 @@ use crate::touch::Touch;
 const TOUCH_FREQ: u32 = 200_000;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
     info!("Hello World!");
 
     let bl = p.PIN_13;
diff --git a/examples/rp/src/bin/uart.rs b/examples/rp/src/bin/uart.rs
index 0d2954894..c63b31cae 100644
--- a/examples/rp/src/bin/uart.rs
+++ b/examples/rp/src/bin/uart.rs
@@ -2,18 +2,19 @@
 #![no_main]
 #![feature(type_alias_impl_trait)]
 
-use embassy_executor::executor::Spawner;
-use embassy_rp::{uart, Peripherals};
+use embassy_executor::Spawner;
+use embassy_rp::uart;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
     let config = uart::Config::default();
-    let mut uart = uart::Uart::new(p.UART0, p.PIN_0, p.PIN_1, p.PIN_2, p.PIN_3, config);
-    uart.send("Hello World!\r\n".as_bytes());
+    let mut uart = uart::Uart::new_with_rtscts(p.UART0, p.PIN_0, p.PIN_1, p.PIN_2, p.PIN_3, config);
+    uart.blocking_write("Hello World!\r\n".as_bytes()).unwrap();
 
     loop {
-        uart.send("hello there!\r\n".as_bytes());
+        uart.blocking_write("hello there!\r\n".as_bytes()).unwrap();
         cortex_m::asm::delay(1_000_000);
     }
 }
diff --git a/examples/std/Cargo.toml b/examples/std/Cargo.toml
index 54499796b..b7009017c 100644
--- a/examples/std/Cargo.toml
+++ b/examples/std/Cargo.toml
@@ -5,9 +5,11 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["log"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["log", "std", "time", "nightly"] }
-embassy-net = { version = "0.1.0", path = "../../embassy-net", features=[ "std", "log", "medium-ethernet", "tcp", "dhcpv4", "pool-16"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["log", "std", "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", "log", "medium-ethernet", "tcp", "udp", "dhcpv4", "pool-16"] }
 embedded-io = { version = "0.3.0", features = ["async", "std", "futures"] }
+critical-section = { version = "1.1", features = ["std"] }
 
 async-io = "1.6.0"
 env_logger = "0.9.0"
diff --git a/examples/std/src/bin/net.rs b/examples/std/src/bin/net.rs
index 202585289..528609260 100644
--- a/examples/std/src/bin/net.rs
+++ b/examples/std/src/bin/net.rs
@@ -1,7 +1,7 @@
 #![feature(type_alias_impl_trait)]
 
 use clap::Parser;
-use embassy_executor::executor::{Executor, Spawner};
+use embassy_executor::{Executor, Spawner};
 use embassy_net::tcp::TcpSocket;
 use embassy_net::{ConfigStrategy, Ipv4Address, Ipv4Cidr, Stack, StackResources};
 use embassy_util::Forever;
diff --git a/examples/std/src/bin/net_udp.rs b/examples/std/src/bin/net_udp.rs
new file mode 100644
index 000000000..07e11c385
--- /dev/null
+++ b/examples/std/src/bin/net_udp.rs
@@ -0,0 +1,109 @@
+#![feature(type_alias_impl_trait)]
+
+use clap::Parser;
+use embassy_executor::{Executor, Spawner};
+use embassy_net::udp::UdpSocket;
+use embassy_net::{ConfigStrategy, Ipv4Address, Ipv4Cidr, PacketMetadata, Stack, StackResources};
+use embassy_util::Forever;
+use heapless::Vec;
+use log::*;
+use rand_core::{OsRng, RngCore};
+
+#[path = "../tuntap.rs"]
+mod tuntap;
+
+use crate::tuntap::TunTapDevice;
+
+macro_rules! forever {
+    ($val:expr) => {{
+        type T = impl Sized;
+        static FOREVER: Forever<T> = Forever::new();
+        FOREVER.put_with(move || $val)
+    }};
+}
+
+#[derive(Parser)]
+#[clap(version = "1.0")]
+struct Opts {
+    /// TAP device name
+    #[clap(long, default_value = "tap0")]
+    tap: String,
+    /// use a static IP instead of DHCP
+    #[clap(long)]
+    static_ip: bool,
+}
+
+#[embassy_executor::task]
+async fn net_task(stack: &'static Stack<TunTapDevice>) -> ! {
+    stack.run().await
+}
+
+#[embassy_executor::task]
+async fn main_task(spawner: Spawner) {
+    let opts: Opts = Opts::parse();
+
+    // Init network device
+    let device = TunTapDevice::new(&opts.tap).unwrap();
+
+    // Choose between dhcp or static ip
+    let config = if opts.static_ip {
+        ConfigStrategy::Static(embassy_net::Config {
+            address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
+            dns_servers: Vec::new(),
+            gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
+        })
+    } else {
+        ConfigStrategy::Dhcp
+    };
+
+    // Generate random seed
+    let mut seed = [0; 8];
+    OsRng.fill_bytes(&mut seed);
+    let seed = u64::from_le_bytes(seed);
+
+    // Init network stack
+    let stack = &*forever!(Stack::new(
+        device,
+        config,
+        forever!(StackResources::<1, 2, 8>::new()),
+        seed
+    ));
+
+    // Launch network task
+    spawner.spawn(net_task(stack)).unwrap();
+
+    // Then we can use it!
+    let mut rx_meta = [PacketMetadata::EMPTY; 16];
+    let mut rx_buffer = [0; 4096];
+    let mut tx_meta = [PacketMetadata::EMPTY; 16];
+    let mut tx_buffer = [0; 4096];
+    let mut buf = [0; 4096];
+
+    let mut socket = UdpSocket::new(stack, &mut rx_meta, &mut rx_buffer, &mut tx_meta, &mut tx_buffer);
+    socket.bind(9400).unwrap();
+
+    loop {
+        let (n, ep) = socket.recv_from(&mut buf).await.unwrap();
+        if let Ok(s) = core::str::from_utf8(&buf[..n]) {
+            info!("ECHO (to {}): {}", ep, s);
+        } else {
+            info!("ECHO (to {}): bytearray len {}", ep, n);
+        }
+        socket.send_to(&buf[..n], ep).await.unwrap();
+    }
+}
+
+static EXECUTOR: Forever<Executor> = Forever::new();
+
+fn main() {
+    env_logger::builder()
+        .filter_level(log::LevelFilter::Debug)
+        .filter_module("async_io", log::LevelFilter::Info)
+        .format_timestamp_nanos()
+        .init();
+
+    let executor = EXECUTOR.put(Executor::new());
+    executor.run(|spawner| {
+        spawner.spawn(main_task(spawner)).unwrap();
+    });
+}
diff --git a/examples/std/src/bin/serial.rs b/examples/std/src/bin/serial.rs
index b803d1ef7..35cba4cee 100644
--- a/examples/std/src/bin/serial.rs
+++ b/examples/std/src/bin/serial.rs
@@ -4,7 +4,7 @@
 mod serial_port;
 
 use async_io::Async;
-use embassy_executor::executor::Executor;
+use embassy_executor::Executor;
 use embassy_util::Forever;
 use embedded_io::asynch::Read;
 use log::*;
diff --git a/examples/std/src/bin/tick.rs b/examples/std/src/bin/tick.rs
index 9ca900df8..b9de9d873 100644
--- a/examples/std/src/bin/tick.rs
+++ b/examples/std/src/bin/tick.rs
@@ -1,7 +1,7 @@
 #![feature(type_alias_impl_trait)]
 
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
 use log::*;
 
 #[embassy_executor::task]
diff --git a/examples/stm32f0/Cargo.toml b/examples/stm32f0/Cargo.toml
index 3ba297636..8476200d4 100644
--- a/examples/stm32f0/Cargo.toml
+++ b/examples/stm32f0/Cargo.toml
@@ -6,12 +6,13 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 defmt = "0.3"
 defmt-rtt = "0.3"
 panic-probe = "0.3"
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "memory-x", "stm32f030f4", "time-driver-any"] }
 
diff --git a/examples/stm32f0/src/bin/hello.rs b/examples/stm32f0/src/bin/hello.rs
index c9081ea12..db78233ea 100644
--- a/examples/stm32f0/src/bin/hello.rs
+++ b/examples/stm32f0/src/bin/hello.rs
@@ -3,13 +3,13 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
-use embassy_stm32::Peripherals;
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, _p: Peripherals) -> ! {
+async fn main(_spawner: Spawner) -> ! {
+    let _p = embassy_stm32::init(Default::default());
     loop {
         Timer::after(Duration::from_secs(1)).await;
         info!("Hello");
diff --git a/examples/stm32f1/Cargo.toml b/examples/stm32f1/Cargo.toml
index 9ce553b6d..fbc96400c 100644
--- a/examples/stm32f1/Cargo.toml
+++ b/examples/stm32f1/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32f103c8", "unstable-pac", "memory-x", "time-driver-any"]  }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
 embassy-usb-serial = { version = "0.1.0", path = "../../embassy-usb-serial", features = ["defmt"] }
@@ -13,7 +14,7 @@ embassy-usb-serial = { version = "0.1.0", path = "../../embassy-usb-serial", fea
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/stm32f1/src/bin/adc.rs b/examples/stm32f1/src/bin/adc.rs
index e54593fe5..2d6b4a0e9 100644
--- a/examples/stm32f1/src/bin/adc.rs
+++ b/examples/stm32f1/src/bin/adc.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Delay, Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::adc::Adc;
-use embassy_stm32::Peripherals;
+use embassy_time::{Delay, Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut adc = Adc::new(p.ADC1, &mut Delay);
diff --git a/examples/stm32f1/src/bin/blinky.rs b/examples/stm32f1/src/bin/blinky.rs
index 5171043e8..b9b0ac238 100644
--- a/examples/stm32f1/src/bin/blinky.rs
+++ b/examples/stm32f1/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PC13, Level::High, Speed::Low);
diff --git a/examples/stm32f1/src/bin/hello.rs b/examples/stm32f1/src/bin/hello.rs
index 549d1bfba..180b6aabd 100644
--- a/examples/stm32f1/src/bin/hello.rs
+++ b/examples/stm32f1/src/bin/hello.rs
@@ -3,20 +3,18 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::time::Hertz;
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(Hertz(36_000_000));
-    config
-}
+    let _p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, _p: Peripherals) -> ! {
     loop {
         info!("Hello World!");
         Timer::after(Duration::from_secs(1)).await;
diff --git a/examples/stm32f1/src/bin/usb_serial.rs b/examples/stm32f1/src/bin/usb_serial.rs
index cf7facb79..a9c46068f 100644
--- a/examples/stm32f1/src/bin/usb_serial.rs
+++ b/examples/stm32f1/src/bin/usb_serial.rs
@@ -3,28 +3,26 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{panic, *};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::time::Hertz;
 use embassy_stm32::usb::{Driver, Instance};
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
+use embassy_time::{Duration, Timer};
 use embassy_usb::driver::EndpointError;
 use embassy_usb::Builder;
 use embassy_usb_serial::{CdcAcmClass, State};
 use futures::future::join;
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.rcc.hse = Some(Hertz(8_000_000));
     config.rcc.sys_ck = Some(Hertz(48_000_000));
     config.rcc.pclk1 = Some(Hertz(24_000_000));
-    config
-}
+    let mut p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, mut p: Peripherals) {
     info!("Hello World!");
 
     {
diff --git a/examples/stm32f2/Cargo.toml b/examples/stm32f2/Cargo.toml
index a3fb736da..27894df50 100644
--- a/examples/stm32f2/Cargo.toml
+++ b/examples/stm32f2/Cargo.toml
@@ -5,13 +5,14 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32f207zg", "unstable-pac", "memory-x", "time-driver-any", "exti"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/stm32f2/src/bin/blinky.rs b/examples/stm32f2/src/bin/blinky.rs
index 48ae2e711..d8c89a519 100644
--- a/examples/stm32f2/src/bin/blinky.rs
+++ b/examples/stm32f2/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB14, Level::High, Speed::Low);
diff --git a/examples/stm32f2/src/bin/pll.rs b/examples/stm32f2/src/bin/pll.rs
index 01e63b15e..17f09538c 100644
--- a/examples/stm32f2/src/bin/pll.rs
+++ b/examples/stm32f2/src/bin/pll.rs
@@ -5,17 +5,19 @@
 use core::convert::TryFrom;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::rcc::{
     APBPrescaler, ClockSrc, HSEConfig, HSESrc, PLL48Div, PLLConfig, PLLMainDiv, PLLMul, PLLPreDiv, PLLSrc,
 };
 use embassy_stm32::time::Hertz;
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
-// Example config for maximum performance on a NUCLEO-F207ZG board
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    // Example config for maximum performance on a NUCLEO-F207ZG board
+
     let mut config = Config::default();
     // By default, HSE on the board comes from a 8 MHz clock signal (not a crystal)
     config.rcc.hse = Some(HSEConfig {
@@ -40,11 +42,9 @@ fn config() -> Config {
     config.rcc.apb1_pre = APBPrescaler::Div4;
     // 120 MHz / 2 = 60 MHz APB2 frequency
     config.rcc.apb2_pre = APBPrescaler::Div2;
-    config
-}
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, _p: Peripherals) {
+    let _p = embassy_stm32::init(config);
+
     loop {
         Timer::after(Duration::from_millis(1000)).await;
         info!("1s elapsed");
diff --git a/examples/stm32f3/Cargo.toml b/examples/stm32f3/Cargo.toml
index 410e9b3e0..b5ea28bb6 100644
--- a/examples/stm32f3/Cargo.toml
+++ b/examples/stm32f3/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 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"] }
 embassy-usb-serial = { version = "0.1.0", path = "../../embassy-usb-serial", features = ["defmt"] }
@@ -14,7 +15,7 @@ embassy-usb-hid = { version = "0.1.0", path = "../../embassy-usb-hid", features
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/stm32f3/src/bin/blinky.rs b/examples/stm32f3/src/bin/blinky.rs
index 7146eaa54..185785ceb 100644
--- a/examples/stm32f3/src/bin/blinky.rs
+++ b/examples/stm32f3/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+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);
diff --git a/examples/stm32f3/src/bin/button_events.rs b/examples/stm32f3/src/bin/button_events.rs
index ef5110316..61fc6dcab 100644
--- a/examples/stm32f3/src/bin/button_events.rs
+++ b/examples/stm32f3/src/bin/button_events.rs
@@ -11,12 +11,11 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{with_timeout, Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{AnyPin, Input, Level, Output, Pin, Pull, Speed};
 use embassy_stm32::peripherals::PA0;
-use embassy_stm32::Peripherals;
+use embassy_time::{with_timeout, Duration, Timer};
 use embassy_util::blocking_mutex::raw::ThreadModeRawMutex;
 use embassy_util::channel::mpmc::Channel;
 use {defmt_rtt as _, panic_probe as _};
@@ -100,7 +99,8 @@ enum ButtonEvent {
 static CHANNEL: Channel<ThreadModeRawMutex, ButtonEvent, 4> = Channel::new();
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let button = Input::new(p.PA0, Pull::Down);
     let button = ExtiInput::new(button, p.EXTI0);
     info!("Press the USER button...");
diff --git a/examples/stm32f3/src/bin/button_exti.rs b/examples/stm32f3/src/bin/button_exti.rs
index dee06e5de..1266778c1 100644
--- a/examples/stm32f3/src/bin/button_exti.rs
+++ b/examples/stm32f3/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PA0, Pull::Down);
diff --git a/examples/stm32f3/src/bin/flash.rs b/examples/stm32f3/src/bin/flash.rs
index be2f6f671..2cf24dbd3 100644
--- a/examples/stm32f3/src/bin/flash.rs
+++ b/examples/stm32f3/src/bin/flash.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::flash::Flash;
-use embassy_stm32::Peripherals;
 use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
     const ADDR: u32 = 0x26000;
diff --git a/examples/stm32f3/src/bin/hello.rs b/examples/stm32f3/src/bin/hello.rs
index bd9953a0e..65773210d 100644
--- a/examples/stm32f3/src/bin/hello.rs
+++ b/examples/stm32f3/src/bin/hello.rs
@@ -3,21 +3,19 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::time::Hertz;
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.hse = Some(Hertz(8_000_000));
     config.rcc.sysclk = Some(Hertz(16_000_000));
-    config
-}
+    let _p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, _p: Peripherals) -> ! {
     loop {
         info!("Hello World!");
         Timer::after(Duration::from_secs(1)).await;
diff --git a/examples/stm32f3/src/bin/multiprio.rs b/examples/stm32f3/src/bin/multiprio.rs
index fba5b286e..e96c31249 100644
--- a/examples/stm32f3/src/bin/multiprio.rs
+++ b/examples/stm32f3/src/bin/multiprio.rs
@@ -59,10 +59,10 @@
 
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_executor::time::{Duration, Instant, Timer};
 use embassy_stm32::executor::{Executor, InterruptExecutor};
 use embassy_stm32::interrupt;
 use embassy_stm32::interrupt::InterruptExt;
+use embassy_time::{Duration, Instant, Timer};
 use embassy_util::Forever;
 use {defmt_rtt as _, panic_probe as _};
 
diff --git a/examples/stm32f3/src/bin/spi_dma.rs b/examples/stm32f3/src/bin/spi_dma.rs
index f554c509a..95b2b6865 100644
--- a/examples/stm32f3/src/bin/spi_dma.rs
+++ b/examples/stm32f3/src/bin/spi_dma.rs
@@ -6,15 +6,15 @@ use core::fmt::Write;
 use core::str::from_utf8;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::spi::{Config, Spi};
 use embassy_stm32::time::Hertz;
-use embassy_stm32::Peripherals;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut spi = Spi::new(
diff --git a/examples/stm32f3/src/bin/usart_dma.rs b/examples/stm32f3/src/bin/usart_dma.rs
index 62d165029..3bc5a287f 100644
--- a/examples/stm32f3/src/bin/usart_dma.rs
+++ b/examples/stm32f3/src/bin/usart_dma.rs
@@ -5,15 +5,15 @@
 use core::fmt::Write;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::usart::{Config, Uart};
-use embassy_stm32::Peripherals;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let config = Config::default();
diff --git a/examples/stm32f3/src/bin/usb_serial.rs b/examples/stm32f3/src/bin/usb_serial.rs
index 87b1138f5..d3702fc35 100644
--- a/examples/stm32f3/src/bin/usb_serial.rs
+++ b/examples/stm32f3/src/bin/usb_serial.rs
@@ -3,32 +3,28 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{panic, *};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::time::mhz;
 use embassy_stm32::usb::{Driver, Instance};
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
+use embassy_time::{Duration, Timer};
 use embassy_usb::driver::EndpointError;
 use embassy_usb::Builder;
 use embassy_usb_serial::{CdcAcmClass, State};
 use futures::future::join;
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
-
     config.rcc.hse = Some(mhz(8));
     config.rcc.sysclk = Some(mhz(48));
     config.rcc.pclk1 = Some(mhz(24));
     config.rcc.pclk2 = Some(mhz(24));
     config.rcc.pll48 = true;
+    let p = embassy_stm32::init(config);
 
-    config
-}
-
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
     info!("Hello World!");
 
     // Needed for nucleo-stm32f303ze
diff --git a/examples/stm32f4/Cargo.toml b/examples/stm32f4/Cargo.toml
index 3c58320dd..04a217aff 100644
--- a/examples/stm32f4/Cargo.toml
+++ b/examples/stm32f4/Cargo.toml
@@ -6,13 +6,14 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "unstable-traits", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "unstable-traits", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "unstable-traits", "defmt", "stm32f429zi", "unstable-pac", "memory-x", "time-driver-any", "exti"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 embedded-io = "0.3.0"
diff --git a/examples/stm32f4/src/bin/adc.rs b/examples/stm32f4/src/bin/adc.rs
index 27ed4fcc5..871185074 100644
--- a/examples/stm32f4/src/bin/adc.rs
+++ b/examples/stm32f4/src/bin/adc.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Delay, Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::adc::Adc;
-use embassy_stm32::Peripherals;
+use embassy_time::{Delay, Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut adc = Adc::new(p.ADC1, &mut Delay);
diff --git a/examples/stm32f4/src/bin/blinky.rs b/examples/stm32f4/src/bin/blinky.rs
index f71fe0989..b27bee4ce 100644
--- a/examples/stm32f4/src/bin/blinky.rs
+++ b/examples/stm32f4/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB7, Level::High, Speed::Low);
diff --git a/examples/stm32f4/src/bin/button_exti.rs b/examples/stm32f4/src/bin/button_exti.rs
index 60dfb362b..dfe587d41 100644
--- a/examples/stm32f4/src/bin/button_exti.rs
+++ b/examples/stm32f4/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PC13, Pull::Down);
diff --git a/examples/stm32f4/src/bin/dac.rs b/examples/stm32f4/src/bin/dac.rs
index 392f5bf4d..d97ae7082 100644
--- a/examples/stm32f4/src/bin/dac.rs
+++ b/examples/stm32f4/src/bin/dac.rs
@@ -3,13 +3,13 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dac::{Channel, Dac, Value};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) -> ! {
+async fn main(_spawner: Spawner) -> ! {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World, dude!");
 
     let mut dac = Dac::new_1ch(p.DAC, p.PA4);
diff --git a/examples/stm32f4/src/bin/flash.rs b/examples/stm32f4/src/bin/flash.rs
index 4f780656e..393d61e86 100644
--- a/examples/stm32f4/src/bin/flash.rs
+++ b/examples/stm32f4/src/bin/flash.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::flash::Flash;
-use embassy_stm32::Peripherals;
 use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
     let mut f = Flash::unlock(p.FLASH);
diff --git a/examples/stm32f4/src/bin/hello.rs b/examples/stm32f4/src/bin/hello.rs
index f957656ef..c409703f5 100644
--- a/examples/stm32f4/src/bin/hello.rs
+++ b/examples/stm32f4/src/bin/hello.rs
@@ -3,20 +3,18 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::time::Hertz;
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(Hertz(84_000_000));
-    config
-}
+    let _p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, _p: Peripherals) -> ! {
     loop {
         info!("Hello World!");
         Timer::after(Duration::from_secs(1)).await;
diff --git a/examples/stm32f4/src/bin/multiprio.rs b/examples/stm32f4/src/bin/multiprio.rs
index fba5b286e..e96c31249 100644
--- a/examples/stm32f4/src/bin/multiprio.rs
+++ b/examples/stm32f4/src/bin/multiprio.rs
@@ -59,10 +59,10 @@
 
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_executor::time::{Duration, Instant, Timer};
 use embassy_stm32::executor::{Executor, InterruptExecutor};
 use embassy_stm32::interrupt;
 use embassy_stm32::interrupt::InterruptExt;
+use embassy_time::{Duration, Instant, Timer};
 use embassy_util::Forever;
 use {defmt_rtt as _, panic_probe as _};
 
diff --git a/examples/stm32f4/src/bin/pwm.rs b/examples/stm32f4/src/bin/pwm.rs
index 0b352c2b7..7c5902052 100644
--- a/examples/stm32f4/src/bin/pwm.rs
+++ b/examples/stm32f4/src/bin/pwm.rs
@@ -3,16 +3,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::pwm::simple_pwm::{PwmPin, SimplePwm};
 use embassy_stm32::pwm::Channel;
 use embassy_stm32::time::khz;
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let ch1 = PwmPin::new_ch1(p.PE9);
diff --git a/examples/stm32f4/src/bin/sdmmc.rs b/examples/stm32f4/src/bin/sdmmc.rs
index 6eef19963..0edd8a61a 100644
--- a/examples/stm32f4/src/bin/sdmmc.rs
+++ b/examples/stm32f4/src/bin/sdmmc.rs
@@ -3,20 +3,17 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::sdmmc::Sdmmc;
 use embassy_stm32::time::mhz;
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(48));
-    config
-}
-
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) -> ! {
+    let p = embassy_stm32::init(config);
     info!("Hello World!");
 
     let irq = interrupt::take!(SDIO);
diff --git a/examples/stm32f4/src/bin/spi_dma.rs b/examples/stm32f4/src/bin/spi_dma.rs
index 023ca0971..3d2a1a1ae 100644
--- a/examples/stm32f4/src/bin/spi_dma.rs
+++ b/examples/stm32f4/src/bin/spi_dma.rs
@@ -6,15 +6,15 @@ use core::fmt::Write;
 use core::str::from_utf8;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::spi::{Config, Spi};
 use embassy_stm32::time::Hertz;
-use embassy_stm32::Peripherals;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut spi = Spi::new(
diff --git a/examples/stm32f4/src/bin/usart_buffered.rs b/examples/stm32f4/src/bin/usart_buffered.rs
index 2555998ce..7bcecbd26 100644
--- a/examples/stm32f4/src/bin/usart_buffered.rs
+++ b/examples/stm32f4/src/bin/usart_buffered.rs
@@ -3,15 +3,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
+use embassy_stm32::interrupt;
 use embassy_stm32::usart::{BufferedUart, Config, State, Uart};
-use embassy_stm32::{interrupt, Peripherals};
 use embedded_io::asynch::BufRead;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let config = Config::default();
diff --git a/examples/stm32f4/src/bin/usart_dma.rs b/examples/stm32f4/src/bin/usart_dma.rs
index 7859ba2ae..bb41b8b4f 100644
--- a/examples/stm32f4/src/bin/usart_dma.rs
+++ b/examples/stm32f4/src/bin/usart_dma.rs
@@ -5,15 +5,15 @@
 use core::fmt::Write;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::usart::{Config, Uart};
-use embassy_stm32::Peripherals;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let config = Config::default();
diff --git a/examples/stm32f4/src/bin/wdt.rs b/examples/stm32f4/src/bin/wdt.rs
index 48394f4f1..b2c587fa1 100644
--- a/examples/stm32f4/src/bin/wdt.rs
+++ b/examples/stm32f4/src/bin/wdt.rs
@@ -3,15 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::wdg::IndependentWatchdog;
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB7, Level::High, Speed::Low);
diff --git a/examples/stm32f7/Cargo.toml b/examples/stm32f7/Cargo.toml
index 081bed84f..29d6da4d8 100644
--- a/examples/stm32f7/Cargo.toml
+++ b/examples/stm32f7/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "net", "stm32f767zi", "unstable-pac", "time-driver-any", "exti"]  }
 embassy-net = { path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "pool-16"] }
 embedded-io = { version = "0.3.0", features = ["async"] }
@@ -13,7 +14,7 @@ embedded-io = { version = "0.3.0", features = ["async"] }
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
@@ -21,5 +22,5 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 heapless = { version = "0.7.5", default-features = false }
 nb = "1.0.0"
 rand_core = "0.6.3"
-critical-section = "0.2.3"
+critical-section = "1.1"
 embedded-storage = "0.3.0"
diff --git a/examples/stm32f7/src/bin/adc.rs b/examples/stm32f7/src/bin/adc.rs
index 2a813c050..80fad8c41 100644
--- a/examples/stm32f7/src/bin/adc.rs
+++ b/examples/stm32f7/src/bin/adc.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Delay, Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::adc::Adc;
-use embassy_stm32::Peripherals;
+use embassy_time::{Delay, Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut adc = Adc::new(p.ADC1, &mut Delay);
diff --git a/examples/stm32f7/src/bin/blinky.rs b/examples/stm32f7/src/bin/blinky.rs
index f71fe0989..b27bee4ce 100644
--- a/examples/stm32f7/src/bin/blinky.rs
+++ b/examples/stm32f7/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB7, Level::High, Speed::Low);
diff --git a/examples/stm32f7/src/bin/button_exti.rs b/examples/stm32f7/src/bin/button_exti.rs
index 60dfb362b..dfe587d41 100644
--- a/examples/stm32f7/src/bin/button_exti.rs
+++ b/examples/stm32f7/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PC13, Pull::Down);
diff --git a/examples/stm32f7/src/bin/eth.rs b/examples/stm32f7/src/bin/eth.rs
index 33504af76..bdffabcb3 100644
--- a/examples/stm32f7/src/bin/eth.rs
+++ b/examples/stm32f7/src/bin/eth.rs
@@ -3,8 +3,7 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_net::tcp::TcpSocket;
 use embassy_net::{Ipv4Address, Stack, StackResources};
 use embassy_stm32::eth::generic_smi::GenericSMI;
@@ -12,7 +11,8 @@ use embassy_stm32::eth::{Ethernet, State};
 use embassy_stm32::peripherals::ETH;
 use embassy_stm32::rng::Rng;
 use embassy_stm32::time::mhz;
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
+use embassy_time::{Duration, Timer};
 use embassy_util::Forever;
 use embedded_io::asynch::Write;
 use rand_core::RngCore;
@@ -33,14 +33,12 @@ async fn net_task(stack: &'static Stack<Device>) -> ! {
     stack.run().await
 }
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(200));
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(spawner: Spawner, p: Peripherals) -> ! {
     info!("Hello World!");
 
     // Generate random seed.
diff --git a/examples/stm32f7/src/bin/flash.rs b/examples/stm32f7/src/bin/flash.rs
index 15864cabb..c10781d0c 100644
--- a/examples/stm32f7/src/bin/flash.rs
+++ b/examples/stm32f7/src/bin/flash.rs
@@ -3,15 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::flash::Flash;
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
     const ADDR: u32 = 0x8_0000;
diff --git a/examples/stm32f7/src/bin/hello.rs b/examples/stm32f7/src/bin/hello.rs
index f957656ef..c409703f5 100644
--- a/examples/stm32f7/src/bin/hello.rs
+++ b/examples/stm32f7/src/bin/hello.rs
@@ -3,20 +3,18 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::info;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::time::Hertz;
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(Hertz(84_000_000));
-    config
-}
+    let _p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, _p: Peripherals) -> ! {
     loop {
         info!("Hello World!");
         Timer::after(Duration::from_secs(1)).await;
diff --git a/examples/stm32f7/src/bin/sdmmc.rs b/examples/stm32f7/src/bin/sdmmc.rs
index 1f321df17..3bf427eca 100644
--- a/examples/stm32f7/src/bin/sdmmc.rs
+++ b/examples/stm32f7/src/bin/sdmmc.rs
@@ -3,20 +3,18 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::sdmmc::Sdmmc;
 use embassy_stm32::time::mhz;
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(200));
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) -> ! {
     info!("Hello World!");
 
     let irq = interrupt::take!(SDMMC1);
diff --git a/examples/stm32f7/src/bin/usart_dma.rs b/examples/stm32f7/src/bin/usart_dma.rs
index 9884d1634..07270479c 100644
--- a/examples/stm32f7/src/bin/usart_dma.rs
+++ b/examples/stm32f7/src/bin/usart_dma.rs
@@ -5,15 +5,15 @@
 use core::fmt::Write;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::usart::{Config, Uart};
-use embassy_stm32::Peripherals;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let config = Config::default();
     let mut usart = Uart::new(p.UART7, p.PA8, p.PA15, p.DMA1_CH1, NoDma, config);
 
diff --git a/examples/stm32g0/Cargo.toml b/examples/stm32g0/Cargo.toml
index 3dedeac63..5c80d43eb 100644
--- a/examples/stm32g0/Cargo.toml
+++ b/examples/stm32g0/Cargo.toml
@@ -5,13 +5,14 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "time-driver-any", "stm32g071rb", "memory-x", "unstable-pac", "exti"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/stm32g0/src/bin/blinky.rs b/examples/stm32g0/src/bin/blinky.rs
index f71fe0989..b27bee4ce 100644
--- a/examples/stm32g0/src/bin/blinky.rs
+++ b/examples/stm32g0/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB7, Level::High, Speed::Low);
diff --git a/examples/stm32g0/src/bin/button_exti.rs b/examples/stm32g0/src/bin/button_exti.rs
index 0832386ed..ef32d4c4a 100644
--- a/examples/stm32g0/src/bin/button_exti.rs
+++ b/examples/stm32g0/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PC13, Pull::Up);
diff --git a/examples/stm32g4/Cargo.toml b/examples/stm32g4/Cargo.toml
index 60c62ad1e..74c645cf5 100644
--- a/examples/stm32g4/Cargo.toml
+++ b/examples/stm32g4/Cargo.toml
@@ -5,14 +5,15 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 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" }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/stm32g4/src/bin/blinky.rs b/examples/stm32g4/src/bin/blinky.rs
index ea3c563b4..8a65b0692 100644
--- a/examples/stm32g4/src/bin/blinky.rs
+++ b/examples/stm32g4/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+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);
diff --git a/examples/stm32g4/src/bin/button_exti.rs b/examples/stm32g4/src/bin/button_exti.rs
index 60dfb362b..dfe587d41 100644
--- a/examples/stm32g4/src/bin/button_exti.rs
+++ b/examples/stm32g4/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PC13, Pull::Down);
diff --git a/examples/stm32g4/src/bin/pwm.rs b/examples/stm32g4/src/bin/pwm.rs
index 7c16d0a3a..017e89e41 100644
--- a/examples/stm32g4/src/bin/pwm.rs
+++ b/examples/stm32g4/src/bin/pwm.rs
@@ -3,16 +3,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::pwm::simple_pwm::{PwmPin, SimplePwm};
 use embassy_stm32::pwm::Channel;
 use embassy_stm32::time::khz;
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let ch1 = PwmPin::new_ch1(p.PA5);
diff --git a/examples/stm32h7/Cargo.toml b/examples/stm32h7/Cargo.toml
index 8b1999b30..a416796ea 100644
--- a/examples/stm32h7/Cargo.toml
+++ b/examples/stm32h7/Cargo.toml
@@ -5,24 +5,26 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "unstable-traits", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "unstable-traits", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32h743bi", "net", "time-driver-any", "exti", "unstable-pac", "unstable-traits"] }
-embassy-net = { path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "pool-16"] }
+embassy-net = { path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "pool-16", "unstable-traits"] }
 embedded-io = { version = "0.3.0", features = ["async"] }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+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.8" }
 embedded-hal-async = { version = "0.1.0-alpha.1" }
+embedded-nal-async = "0.2.0"
 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 = "0.2.5"
+critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.2.4"
 embedded-storage = "0.3.0"
diff --git a/examples/stm32h7/src/bin/adc.rs b/examples/stm32h7/src/bin/adc.rs
index f50976a30..0e1e28c72 100644
--- a/examples/stm32h7/src/bin/adc.rs
+++ b/examples/stm32h7/src/bin/adc.rs
@@ -3,25 +3,23 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Delay, Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::adc::{Adc, SampleTime};
 use embassy_stm32::rcc::AdcClockSource;
 use embassy_stm32::time::mhz;
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
+use embassy_time::{Delay, Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
-pub fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(400));
     config.rcc.hclk = Some(mhz(200));
     config.rcc.per_ck = Some(mhz(64));
     config.rcc.adc_clock_source = AdcClockSource::PerCk;
-    config
-}
+    let mut p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, mut p: Peripherals) {
     info!("Hello World!");
 
     let mut adc = Adc::new(p.ADC3, &mut Delay);
diff --git a/examples/stm32h7/src/bin/blinky.rs b/examples/stm32h7/src/bin/blinky.rs
index 98ce15cc6..12f08c0fd 100644
--- a/examples/stm32h7/src/bin/blinky.rs
+++ b/examples/stm32h7/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB14, Level::High, Speed::Low);
diff --git a/examples/stm32h7/src/bin/button_exti.rs b/examples/stm32h7/src/bin/button_exti.rs
index 60dfb362b..dfe587d41 100644
--- a/examples/stm32h7/src/bin/button_exti.rs
+++ b/examples/stm32h7/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PC13, Pull::Down);
diff --git a/examples/stm32h7/src/bin/camera.rs b/examples/stm32h7/src/bin/camera.rs
index 69187182f..9c443b83a 100644
--- a/examples/stm32h7/src/bin/camera.rs
+++ b/examples/stm32h7/src/bin/camera.rs
@@ -2,18 +2,24 @@
 #![no_main]
 #![feature(type_alias_impl_trait)]
 
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::dcmi::{self, *};
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::i2c::I2c;
 use embassy_stm32::rcc::{Mco, Mco1Source, McoClock};
 use embassy_stm32::time::{khz, mhz};
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
+use embassy_time::{Duration, Timer};
+use ov7725::*;
 use {defmt_rtt as _, panic_probe as _};
 
-#[allow(unused)]
-pub fn config() -> Config {
+const WIDTH: usize = 100;
+const HEIGHT: usize = 100;
+
+static mut FRAME: [u32; WIDTH * HEIGHT / 2] = [0u32; WIDTH * HEIGHT / 2];
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(400));
     config.rcc.hclk = Some(mhz(400));
@@ -22,24 +28,23 @@ pub fn config() -> Config {
     config.rcc.pclk2 = Some(mhz(100));
     config.rcc.pclk3 = Some(mhz(100));
     config.rcc.pclk4 = Some(mhz(100));
-    config
-}
+    let p = embassy_stm32::init(config);
 
-use ov7725::*;
-
-const WIDTH: usize = 100;
-const HEIGHT: usize = 100;
-
-static mut FRAME: [u32; WIDTH * HEIGHT / 2] = [0u32; WIDTH * HEIGHT / 2];
-
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
     defmt::info!("Hello World!");
     let mco = Mco::new(p.MCO1, p.PA8, Mco1Source::Hsi, McoClock::Divided(3));
 
     let mut led = Output::new(p.PE3, Level::High, Speed::Low);
     let i2c_irq = interrupt::take!(I2C1_EV);
-    let cam_i2c = I2c::new(p.I2C1, p.PB8, p.PB9, i2c_irq, p.DMA1_CH1, p.DMA1_CH2, khz(100));
+    let cam_i2c = I2c::new(
+        p.I2C1,
+        p.PB8,
+        p.PB9,
+        i2c_irq,
+        p.DMA1_CH1,
+        p.DMA1_CH2,
+        khz(100),
+        Default::default(),
+    );
 
     let mut camera = Ov7725::new(cam_i2c, mco);
 
@@ -78,8 +83,8 @@ mod ov7725 {
     use core::marker::PhantomData;
 
     use defmt::Format;
-    use embassy_executor::time::{Duration, Timer};
     use embassy_stm32::rcc::{Mco, McoInstance};
+    use embassy_time::{Duration, Timer};
     use embedded_hal_async::i2c::I2c;
 
     #[repr(u8)]
diff --git a/examples/stm32h7/src/bin/dac.rs b/examples/stm32h7/src/bin/dac.rs
index dece74bba..f12716370 100644
--- a/examples/stm32h7/src/bin/dac.rs
+++ b/examples/stm32h7/src/bin/dac.rs
@@ -9,19 +9,15 @@ use embassy_stm32::time::mhz;
 use embassy_stm32::Config;
 use {defmt_rtt as _, panic_probe as _};
 
-pub fn config() -> Config {
-    let mut config = Config::default();
-    config.rcc.sys_ck = Some(mhz(400));
-    config.rcc.hclk = Some(mhz(200));
-    config.rcc.pll1.q_ck = Some(mhz(100));
-    config
-}
-
 #[entry]
 fn main() -> ! {
     info!("Hello World, dude!");
 
-    let p = embassy_stm32::init(config());
+    let mut config = Config::default();
+    config.rcc.sys_ck = Some(mhz(400));
+    config.rcc.hclk = Some(mhz(200));
+    config.rcc.pll1.q_ck = Some(mhz(100));
+    let p = embassy_stm32::init(config);
 
     let mut dac = Dac::new_1ch(p.DAC1, p.PA4);
 
diff --git a/examples/stm32h7/src/bin/eth.rs b/examples/stm32h7/src/bin/eth.rs
index 4282fcedd..83210bcb5 100644
--- a/examples/stm32h7/src/bin/eth.rs
+++ b/examples/stm32h7/src/bin/eth.rs
@@ -3,8 +3,7 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_net::tcp::TcpSocket;
 use embassy_net::{Ipv4Address, Stack, StackResources};
 use embassy_stm32::eth::generic_smi::GenericSMI;
@@ -12,7 +11,8 @@ use embassy_stm32::eth::{Ethernet, State};
 use embassy_stm32::peripherals::ETH;
 use embassy_stm32::rng::Rng;
 use embassy_stm32::time::mhz;
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
+use embassy_time::{Duration, Timer};
 use embassy_util::Forever;
 use embedded_io::asynch::Write;
 use rand_core::RngCore;
@@ -33,16 +33,13 @@ async fn net_task(stack: &'static Stack<Device>) -> ! {
     stack.run().await
 }
 
-pub fn config() -> Config {
+#[embassy_executor::main]
+async fn main(spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(400));
     config.rcc.hclk = Some(mhz(200));
     config.rcc.pll1.q_ck = Some(mhz(100));
-    config
-}
-
-#[embassy_executor::main(config = "config()")]
-async fn main(spawner: Spawner, p: Peripherals) -> ! {
+    let p = embassy_stm32::init(config);
     info!("Hello World!");
 
     // Generate random seed.
diff --git a/examples/stm32h7/src/bin/eth_client.rs b/examples/stm32h7/src/bin/eth_client.rs
new file mode 100644
index 000000000..99946f504
--- /dev/null
+++ b/examples/stm32h7/src/bin/eth_client.rs
@@ -0,0 +1,122 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_net::tcp::client::{TcpClient, TcpClientState};
+use embassy_net::{Stack, StackResources};
+use embassy_stm32::eth::generic_smi::GenericSMI;
+use embassy_stm32::eth::{Ethernet, State};
+use embassy_stm32::peripherals::ETH;
+use embassy_stm32::rng::Rng;
+use embassy_stm32::time::mhz;
+use embassy_stm32::{interrupt, Config};
+use embassy_time::{Duration, Timer};
+use embassy_util::Forever;
+use embedded_io::asynch::Write;
+use embedded_nal_async::{Ipv4Addr, SocketAddr, SocketAddrV4, TcpConnect};
+use rand_core::RngCore;
+use {defmt_rtt as _, panic_probe as _};
+
+macro_rules! forever {
+    ($val:expr) => {{
+        type T = impl Sized;
+        static FOREVER: Forever<T> = Forever::new();
+        FOREVER.put_with(move || $val)
+    }};
+}
+
+type Device = Ethernet<'static, ETH, GenericSMI, 4, 4>;
+
+#[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.sys_ck = Some(mhz(400));
+    config.rcc.hclk = Some(mhz(200));
+    config.rcc.pll1.q_ck = Some(mhz(100));
+    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 = unsafe {
+        Ethernet::new(
+            forever!(State::new()),
+            p.ETH,
+            eth_int,
+            p.PA1,
+            p.PA2,
+            p.PC1,
+            p.PA7,
+            p.PC4,
+            p.PC5,
+            p.PG13,
+            p.PB13,
+            p.PG11,
+            GenericSMI,
+            mac_addr,
+            0,
+        )
+    };
+
+    let config = embassy_net::ConfigStrategy::Dhcp;
+    //let config = embassy_net::ConfigStrategy::Static(embassy_net::Config {
+    //    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 = &*forever!(Stack::new(
+        device,
+        config,
+        forever!(StackResources::<1, 2, 8>::new()),
+        seed
+    ));
+
+    // Launch network task
+    unwrap!(spawner.spawn(net_task(&stack)));
+
+    info!("Network task initialized");
+
+    // To ensure DHCP configuration before trying connect
+    Timer::after(Duration::from_secs(20)).await;
+
+    static STATE: TcpClientState<1, 1024, 1024> = TcpClientState::new();
+    let client = TcpClient::new(&stack, &STATE);
+
+    loop {
+        let addr = SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::new(10, 42, 0, 1), 8000));
+
+        info!("connecting...");
+        let r = client.connect(addr).await;
+        if let Err(e) = r {
+            info!("connect error: {:?}", e);
+            Timer::after(Duration::from_secs(1)).await;
+            continue;
+        }
+        let mut connection = r.unwrap();
+        info!("connected!");
+        loop {
+            let r = connection.write_all(b"Hello\n").await;
+            if let Err(e) = r {
+                info!("write error: {:?}", e);
+                return;
+            }
+            Timer::after(Duration::from_secs(1)).await;
+        }
+    }
+}
diff --git a/examples/stm32h7/src/bin/flash.rs b/examples/stm32h7/src/bin/flash.rs
index 0c477deba..6682c64d5 100644
--- a/examples/stm32h7/src/bin/flash.rs
+++ b/examples/stm32h7/src/bin/flash.rs
@@ -3,15 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::flash::Flash;
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
     const ADDR: u32 = 0x08_0000;
diff --git a/examples/stm32h7/src/bin/fmc.rs b/examples/stm32h7/src/bin/fmc.rs
index 5140a6e22..85c690fe6 100644
--- a/examples/stm32h7/src/bin/fmc.rs
+++ b/examples/stm32h7/src/bin/fmc.rs
@@ -3,23 +3,21 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Delay, Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::fmc::Fmc;
 use embassy_stm32::time::mhz;
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
+use embassy_time::{Delay, Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
-pub fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(400));
     config.rcc.hclk = Some(mhz(200));
     config.rcc.pll1.q_ck = Some(mhz(100));
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
     info!("Hello World!");
 
     let mut core_peri = cortex_m::Peripherals::take().unwrap();
diff --git a/examples/stm32h7/src/bin/low_level_timer_api.rs b/examples/stm32h7/src/bin/low_level_timer_api.rs
index f2477c7a7..1972f8ff2 100644
--- a/examples/stm32h7/src/bin/low_level_timer_api.rs
+++ b/examples/stm32h7/src/bin/low_level_timer_api.rs
@@ -3,16 +3,17 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::low_level::AFType;
 use embassy_stm32::gpio::Speed;
 use embassy_stm32::pwm::*;
 use embassy_stm32::time::{khz, mhz, Hertz};
-use embassy_stm32::{into_ref, Config, Peripheral, PeripheralRef, Peripherals};
+use embassy_stm32::{into_ref, Config, Peripheral, PeripheralRef};
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
-pub fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(400));
     config.rcc.hclk = Some(mhz(400));
@@ -21,11 +22,8 @@ pub fn config() -> Config {
     config.rcc.pclk2 = Some(mhz(100));
     config.rcc.pclk3 = Some(mhz(100));
     config.rcc.pclk4 = Some(mhz(100));
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
     info!("Hello World!");
 
     let mut pwm = SimplePwm32::new(p.TIM5, p.PA0, p.PA1, p.PA2, p.PA3, khz(10));
diff --git a/examples/stm32h7/src/bin/mco.rs b/examples/stm32h7/src/bin/mco.rs
index 83ba3742b..036455d5e 100644
--- a/examples/stm32h7/src/bin/mco.rs
+++ b/examples/stm32h7/src/bin/mco.rs
@@ -3,15 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::rcc::{Mco, Mco1Source, McoClock};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB14, Level::High, Speed::Low);
diff --git a/examples/stm32h7/src/bin/pwm.rs b/examples/stm32h7/src/bin/pwm.rs
index 36ed2e4a4..c5c0dd290 100644
--- a/examples/stm32h7/src/bin/pwm.rs
+++ b/examples/stm32h7/src/bin/pwm.rs
@@ -3,15 +3,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::pwm::simple_pwm::{PwmPin, SimplePwm};
 use embassy_stm32::pwm::Channel;
 use embassy_stm32::time::{khz, mhz};
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
-pub fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(400));
     config.rcc.hclk = Some(mhz(400));
@@ -20,11 +21,7 @@ pub fn config() -> Config {
     config.rcc.pclk2 = Some(mhz(100));
     config.rcc.pclk3 = Some(mhz(100));
     config.rcc.pclk4 = Some(mhz(100));
-    config
-}
-
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
+    let p = embassy_stm32::init(config);
     info!("Hello World!");
 
     let ch1 = PwmPin::new_ch1(p.PA6);
diff --git a/examples/stm32h7/src/bin/rng.rs b/examples/stm32h7/src/bin/rng.rs
index 81fb3d162..af9be0b62 100644
--- a/examples/stm32h7/src/bin/rng.rs
+++ b/examples/stm32h7/src/bin/rng.rs
@@ -3,13 +3,13 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::rng::Rng;
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut rng = Rng::new(p.RNG);
diff --git a/examples/stm32h7/src/bin/sdmmc.rs b/examples/stm32h7/src/bin/sdmmc.rs
index 19ae5ade1..26d1db01e 100644
--- a/examples/stm32h7/src/bin/sdmmc.rs
+++ b/examples/stm32h7/src/bin/sdmmc.rs
@@ -3,20 +3,17 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::sdmmc::Sdmmc;
 use embassy_stm32::time::mhz;
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(200));
-    config
-}
-
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) -> ! {
+    let p = embassy_stm32::init(config);
     info!("Hello World!");
 
     let irq = interrupt::take!(SDMMC1);
diff --git a/examples/stm32h7/src/bin/signal.rs b/examples/stm32h7/src/bin/signal.rs
index 2fc75c7af..be2ac268e 100644
--- a/examples/stm32h7/src/bin/signal.rs
+++ b/examples/stm32h7/src/bin/signal.rs
@@ -3,9 +3,8 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
-use embassy_stm32::Peripherals;
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
 use embassy_util::channel::signal::Signal;
 use {defmt_rtt as _, panic_probe as _};
 
@@ -25,7 +24,8 @@ async fn my_sending_task() {
 }
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, _p: Peripherals) {
+async fn main(spawner: Spawner) {
+    let _p = embassy_stm32::init(Default::default());
     unwrap!(spawner.spawn(my_sending_task()));
 
     loop {
diff --git a/examples/stm32h7/src/bin/spi.rs b/examples/stm32h7/src/bin/spi.rs
index dc8cb7f47..c28f937a8 100644
--- a/examples/stm32h7/src/bin/spi.rs
+++ b/examples/stm32h7/src/bin/spi.rs
@@ -7,7 +7,7 @@ use core::str::from_utf8;
 
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_executor::executor::Executor;
+use embassy_executor::Executor;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::peripherals::SPI3;
 use embassy_stm32::time::mhz;
@@ -16,14 +16,6 @@ use embassy_util::Forever;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
-pub fn config() -> Config {
-    let mut config = Config::default();
-    config.rcc.sys_ck = Some(mhz(400));
-    config.rcc.hclk = Some(mhz(200));
-    config.rcc.pll1.q_ck = Some(mhz(100));
-    config
-}
-
 #[embassy_executor::task]
 async fn main_task(mut spi: spi::Spi<'static, SPI3, NoDma, NoDma>) {
     for n in 0u32.. {
@@ -45,7 +37,11 @@ static EXECUTOR: Forever<Executor> = Forever::new();
 fn main() -> ! {
     info!("Hello World!");
 
-    let p = embassy_stm32::init(config());
+    let mut config = Config::default();
+    config.rcc.sys_ck = Some(mhz(400));
+    config.rcc.hclk = Some(mhz(200));
+    config.rcc.pll1.q_ck = Some(mhz(100));
+    let p = embassy_stm32::init(config);
 
     let spi = spi::Spi::new(
         p.SPI3,
diff --git a/examples/stm32h7/src/bin/spi_dma.rs b/examples/stm32h7/src/bin/spi_dma.rs
index 2631ed30c..6c78c194f 100644
--- a/examples/stm32h7/src/bin/spi_dma.rs
+++ b/examples/stm32h7/src/bin/spi_dma.rs
@@ -7,7 +7,7 @@ use core::str::from_utf8;
 
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_executor::executor::Executor;
+use embassy_executor::Executor;
 use embassy_stm32::peripherals::{DMA1_CH3, DMA1_CH4, SPI3};
 use embassy_stm32::time::mhz;
 use embassy_stm32::{spi, Config};
@@ -15,14 +15,6 @@ use embassy_util::Forever;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
-pub fn config() -> Config {
-    let mut config = Config::default();
-    config.rcc.sys_ck = Some(mhz(400));
-    config.rcc.hclk = Some(mhz(200));
-    config.rcc.pll1.q_ck = Some(mhz(100));
-    config
-}
-
 #[embassy_executor::task]
 async fn main_task(mut spi: spi::Spi<'static, SPI3, DMA1_CH3, DMA1_CH4>) {
     for n in 0u32.. {
@@ -41,7 +33,11 @@ static EXECUTOR: Forever<Executor> = Forever::new();
 fn main() -> ! {
     info!("Hello World!");
 
-    let p = embassy_stm32::init(config());
+    let mut config = Config::default();
+    config.rcc.sys_ck = Some(mhz(400));
+    config.rcc.hclk = Some(mhz(200));
+    config.rcc.pll1.q_ck = Some(mhz(100));
+    let p = embassy_stm32::init(config);
 
     let spi = spi::Spi::new(
         p.SPI3,
diff --git a/examples/stm32h7/src/bin/usart.rs b/examples/stm32h7/src/bin/usart.rs
index e491fb39d..1384d54c6 100644
--- a/examples/stm32h7/src/bin/usart.rs
+++ b/examples/stm32h7/src/bin/usart.rs
@@ -4,7 +4,7 @@
 
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_executor::executor::Executor;
+use embassy_executor::Executor;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::usart::{Config, Uart};
 use embassy_util::Forever;
diff --git a/examples/stm32h7/src/bin/usart_dma.rs b/examples/stm32h7/src/bin/usart_dma.rs
index aacda45bc..f8d58bb84 100644
--- a/examples/stm32h7/src/bin/usart_dma.rs
+++ b/examples/stm32h7/src/bin/usart_dma.rs
@@ -6,7 +6,7 @@ use core::fmt::Write;
 
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_executor::executor::Executor;
+use embassy_executor::Executor;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::usart::{Config, Uart};
 use embassy_util::Forever;
diff --git a/examples/stm32h7/src/bin/usart_split.rs b/examples/stm32h7/src/bin/usart_split.rs
index 12bb0ce9c..64080ec45 100644
--- a/examples/stm32h7/src/bin/usart_split.rs
+++ b/examples/stm32h7/src/bin/usart_split.rs
@@ -3,11 +3,10 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::peripherals::{DMA1_CH1, UART7};
 use embassy_stm32::usart::{Config, Uart, UartRx};
-use embassy_stm32::Peripherals;
 use embassy_util::blocking_mutex::raw::ThreadModeRawMutex;
 use embassy_util::channel::mpmc::Channel;
 use {defmt_rtt as _, panic_probe as _};
@@ -27,7 +26,8 @@ async fn writer(mut usart: Uart<'static, UART7, NoDma, NoDma>) {
 static CHANNEL: Channel<ThreadModeRawMutex, [u8; 8], 1> = Channel::new();
 
 #[embassy_executor::main]
-async fn main(spawner: Spawner, p: Peripherals) -> ! {
+async fn main(spawner: Spawner) -> ! {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let config = Config::default();
diff --git a/examples/stm32l0/Cargo.toml b/examples/stm32l0/Cargo.toml
index 7edda042d..fdb716d15 100644
--- a/examples/stm32l0/Cargo.toml
+++ b/examples/stm32l0/Cargo.toml
@@ -9,7 +9,8 @@ nightly = ["embassy-stm32/nightly", "embassy-lora", "lorawan-device", "lorawan",
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 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}
 
@@ -22,7 +23,7 @@ defmt-rtt = "0.3"
 embedded-storage = "0.3.0"
 embedded-io = "0.3.0"
 
-cortex-m = "0.7.3"
+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"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
diff --git a/examples/stm32l0/src/bin/blinky.rs b/examples/stm32l0/src/bin/blinky.rs
index 8cf21effb..07fad07c6 100644
--- a/examples/stm32l0/src/bin/blinky.rs
+++ b/examples/stm32l0/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB5, Level::High, Speed::Low);
diff --git a/examples/stm32l0/src/bin/button.rs b/examples/stm32l0/src/bin/button.rs
index a5e05c3a3..9d194471e 100644
--- a/examples/stm32l0/src/bin/button.rs
+++ b/examples/stm32l0/src/bin/button.rs
@@ -3,13 +3,13 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PB2, Pull::Up);
diff --git a/examples/stm32l0/src/bin/button_exti.rs b/examples/stm32l0/src/bin/button_exti.rs
index 22a096af8..af82b9955 100644
--- a/examples/stm32l0/src/bin/button_exti.rs
+++ b/examples/stm32l0/src/bin/button_exti.rs
@@ -3,20 +3,18 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
+use embassy_stm32::Config;
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> embassy_stm32::Config {
-    let mut config = embassy_stm32::Config::default();
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let mut config = Config::default();
     config.rcc.enable_hsi48 = true;
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
     let button = Input::new(p.PB2, Pull::Up);
     let mut button = ExtiInput::new(button, p.EXTI2);
 
diff --git a/examples/stm32l0/src/bin/flash.rs b/examples/stm32l0/src/bin/flash.rs
index 7ad5ae3aa..867cb4d3e 100644
--- a/examples/stm32l0/src/bin/flash.rs
+++ b/examples/stm32l0/src/bin/flash.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::flash::Flash;
-use embassy_stm32::Peripherals;
 use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
     const ADDR: u32 = 0x26000;
diff --git a/examples/stm32l0/src/bin/lorawan.rs b/examples/stm32l0/src/bin/lorawan.rs
index 29e54c1be..303558b96 100644
--- a/examples/stm32l0/src/bin/lorawan.rs
+++ b/examples/stm32l0/src/bin/lorawan.rs
@@ -6,26 +6,25 @@
 #![feature(generic_associated_types)]
 #![feature(type_alias_impl_trait)]
 
+use embassy_executor::Spawner;
 use embassy_lora::sx127x::*;
 use embassy_lora::LoraTimer;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
 use embassy_stm32::rng::Rng;
+use embassy_stm32::spi;
 use embassy_stm32::time::khz;
-use embassy_stm32::{spi, Peripherals};
 use lorawan::default_crypto::DefaultFactory as Crypto;
 use lorawan_device::async_device::{region, Device, JoinMode};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> embassy_stm32::Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = embassy_stm32::Config::default();
     config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSI16;
     config.rcc.enable_hsi48 = true;
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: embassy_executor::executor::Spawner, p: Peripherals) {
     // SPI for sx127x
     let spi = spi::Spi::new(
         p.SPI1,
diff --git a/examples/stm32l0/src/bin/raw_spawn.rs b/examples/stm32l0/src/bin/raw_spawn.rs
index cd711a430..bd87e62a4 100644
--- a/examples/stm32l0/src/bin/raw_spawn.rs
+++ b/examples/stm32l0/src/bin/raw_spawn.rs
@@ -5,9 +5,9 @@ use core::mem;
 
 use cortex_m_rt::entry;
 use defmt::*;
-use embassy_executor::executor::raw::TaskStorage;
-use embassy_executor::executor::Executor;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::raw::TaskStorage;
+use embassy_executor::Executor;
+use embassy_time::{Duration, Timer};
 use embassy_util::Forever;
 use {defmt_rtt as _, panic_probe as _};
 
diff --git a/examples/stm32l0/src/bin/spi.rs b/examples/stm32l0/src/bin/spi.rs
index 74694295c..9b5b3e27d 100644
--- a/examples/stm32l0/src/bin/spi.rs
+++ b/examples/stm32l0/src/bin/spi.rs
@@ -3,16 +3,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::spi::{Config, Spi};
 use embassy_stm32::time::Hertz;
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World, folks!");
 
     let mut spi = Spi::new(
diff --git a/examples/stm32l0/src/bin/usart_dma.rs b/examples/stm32l0/src/bin/usart_dma.rs
index 1c5ce94d7..66657d0f0 100644
--- a/examples/stm32l0/src/bin/usart_dma.rs
+++ b/examples/stm32l0/src/bin/usart_dma.rs
@@ -3,13 +3,13 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::usart::{Config, Uart};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     let mut usart = Uart::new(p.USART1, p.PB7, p.PB6, p.DMA1_CH2, p.DMA1_CH3, Config::default());
 
     usart.write(b"Hello Embassy World!\r\n").await.unwrap();
diff --git a/examples/stm32l0/src/bin/usart_irq.rs b/examples/stm32l0/src/bin/usart_irq.rs
index b77d97f85..0e2237388 100644
--- a/examples/stm32l0/src/bin/usart_irq.rs
+++ b/examples/stm32l0/src/bin/usart_irq.rs
@@ -3,15 +3,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
+use embassy_stm32::interrupt;
 use embassy_stm32::usart::{BufferedUart, Config, State, Uart};
-use embassy_stm32::{interrupt, Peripherals};
 use embedded_io::asynch::{Read, Write};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hi!");
 
     static mut TX_BUFFER: [u8; 8] = [0; 8];
diff --git a/examples/stm32l1/Cargo.toml b/examples/stm32l1/Cargo.toml
index d69de9c53..43f844b67 100644
--- a/examples/stm32l1/Cargo.toml
+++ b/examples/stm32l1/Cargo.toml
@@ -5,13 +5,14 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32l151cb-a", "time-driver-any", "memory-x"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/stm32l1/src/bin/blinky.rs b/examples/stm32l1/src/bin/blinky.rs
index 58306be94..8a345d235 100644
--- a/examples/stm32l1/src/bin/blinky.rs
+++ b/examples/stm32l1/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PA12, Level::High, Speed::Low);
diff --git a/examples/stm32l1/src/bin/flash.rs b/examples/stm32l1/src/bin/flash.rs
index 78938fe3e..a76b9879f 100644
--- a/examples/stm32l1/src/bin/flash.rs
+++ b/examples/stm32l1/src/bin/flash.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::flash::Flash;
-use embassy_stm32::Peripherals;
 use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
     const ADDR: u32 = 0x26000;
diff --git a/examples/stm32l1/src/bin/spi.rs b/examples/stm32l1/src/bin/spi.rs
index 05e869e71..0a532e8e3 100644
--- a/examples/stm32l1/src/bin/spi.rs
+++ b/examples/stm32l1/src/bin/spi.rs
@@ -3,16 +3,16 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::spi::{Config, Spi};
 use embassy_stm32::time::Hertz;
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World, folks!");
 
     let mut spi = Spi::new(
diff --git a/examples/stm32l4/Cargo.toml b/examples/stm32l4/Cargo.toml
index 8ac974c92..eaffa253e 100644
--- a/examples/stm32l4/Cargo.toml
+++ b/examples/stm32l4/Cargo.toml
@@ -7,14 +7,15 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 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"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+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.8" }
diff --git a/examples/stm32l4/src/bin/adc.rs b/examples/stm32l4/src/bin/adc.rs
index 93a20d5ea..281346e5f 100644
--- a/examples/stm32l4/src/bin/adc.rs
+++ b/examples/stm32l4/src/bin/adc.rs
@@ -3,9 +3,9 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::time::Delay;
 use embassy_stm32::adc::{Adc, Resolution};
 use embassy_stm32::pac;
+use embassy_time::Delay;
 use {defmt_rtt as _, panic_probe as _};
 
 #[cortex_m_rt::entry]
diff --git a/examples/stm32l4/src/bin/blinky.rs b/examples/stm32l4/src/bin/blinky.rs
index 3d689b5ee..033292fff 100644
--- a/examples/stm32l4/src/bin/blinky.rs
+++ b/examples/stm32l4/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB14, Level::High, Speed::Low);
diff --git a/examples/stm32l4/src/bin/button_exti.rs b/examples/stm32l4/src/bin/button_exti.rs
index 0832386ed..ef32d4c4a 100644
--- a/examples/stm32l4/src/bin/button_exti.rs
+++ b/examples/stm32l4/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PC13, Pull::Up);
diff --git a/examples/stm32l4/src/bin/i2c.rs b/examples/stm32l4/src/bin/i2c.rs
index 058529ecf..d54c080c7 100644
--- a/examples/stm32l4/src/bin/i2c.rs
+++ b/examples/stm32l4/src/bin/i2c.rs
@@ -3,20 +3,30 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::i2c::I2c;
+use embassy_stm32::interrupt;
 use embassy_stm32::time::Hertz;
-use embassy_stm32::{interrupt, Peripherals};
 use {defmt_rtt as _, panic_probe as _};
 
 const ADDRESS: u8 = 0x5F;
 const WHOAMI: u8 = 0x0F;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) -> ! {
+async fn main(_spawner: Spawner) -> ! {
+    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, NoDma, NoDma, Hertz(100_000));
+    let mut i2c = I2c::new(
+        p.I2C2,
+        p.PB10,
+        p.PB11,
+        irq,
+        NoDma,
+        NoDma,
+        Hertz(100_000),
+        Default::default(),
+    );
 
     let mut data = [0u8; 1];
     unwrap!(i2c.blocking_write_read(ADDRESS, &[WHOAMI], &mut data));
diff --git a/examples/stm32l4/src/bin/i2c_blocking_async.rs b/examples/stm32l4/src/bin/i2c_blocking_async.rs
index 2dae9c2d5..35a86660d 100644
--- a/examples/stm32l4/src/bin/i2c_blocking_async.rs
+++ b/examples/stm32l4/src/bin/i2c_blocking_async.rs
@@ -4,11 +4,11 @@
 
 use defmt::*;
 use embassy_embedded_hal::adapter::BlockingAsync;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::i2c::I2c;
+use embassy_stm32::interrupt;
 use embassy_stm32::time::Hertz;
-use embassy_stm32::{interrupt, Peripherals};
 use embedded_hal_async::i2c::I2c as I2cTrait;
 use {defmt_rtt as _, panic_probe as _};
 
@@ -16,9 +16,19 @@ const ADDRESS: u8 = 0x5F;
 const WHOAMI: u8 = 0x0F;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) -> ! {
+async fn main(_spawner: Spawner) -> ! {
+    let p = embassy_stm32::init(Default::default());
     let irq = interrupt::take!(I2C2_EV);
-    let i2c = I2c::new(p.I2C2, p.PB10, p.PB11, irq, NoDma, NoDma, Hertz(100_000));
+    let i2c = I2c::new(
+        p.I2C2,
+        p.PB10,
+        p.PB11,
+        irq,
+        NoDma,
+        NoDma,
+        Hertz(100_000),
+        Default::default(),
+    );
     let mut i2c = BlockingAsync::new(i2c);
 
     let mut data = [0u8; 1];
diff --git a/examples/stm32l4/src/bin/i2c_dma.rs b/examples/stm32l4/src/bin/i2c_dma.rs
index 9e71d404b..3ce9398a4 100644
--- a/examples/stm32l4/src/bin/i2c_dma.rs
+++ b/examples/stm32l4/src/bin/i2c_dma.rs
@@ -3,19 +3,29 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::i2c::I2c;
+use embassy_stm32::interrupt;
 use embassy_stm32::time::Hertz;
-use embassy_stm32::{interrupt, Peripherals};
 use {defmt_rtt as _, panic_probe as _};
 
 const ADDRESS: u8 = 0x5F;
 const WHOAMI: u8 = 0x0F;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) -> ! {
+async fn main(_spawner: Spawner) -> ! {
+    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.DMA1_CH4, p.DMA1_CH5, Hertz(100_000));
+    let mut i2c = I2c::new(
+        p.I2C2,
+        p.PB10,
+        p.PB11,
+        irq,
+        p.DMA1_CH4,
+        p.DMA1_CH5,
+        Hertz(100_000),
+        Default::default(),
+    );
 
     let mut data = [0u8; 1];
     unwrap!(i2c.write_read(ADDRESS, &[WHOAMI], &mut data).await);
diff --git a/examples/stm32l4/src/bin/rng.rs b/examples/stm32l4/src/bin/rng.rs
index ed47fc6c9..c9302bb99 100644
--- a/examples/stm32l4/src/bin/rng.rs
+++ b/examples/stm32l4/src/bin/rng.rs
@@ -3,13 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::rcc::{ClockSrc, PLLClkDiv, PLLMul, PLLSource, PLLSrcDiv};
 use embassy_stm32::rng::Rng;
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     // 72Mhz clock (16 / 1 * 18 / 4)
     config.rcc.mux = ClockSrc::PLL(
@@ -19,11 +20,8 @@ fn config() -> Config {
         PLLMul::Mul18,
         Some(PLLClkDiv::Div6), // 48Mhz (16 / 1 * 18 / 6)
     );
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
     info!("Hello World!");
 
     let mut rng = Rng::new(p.RNG);
diff --git a/examples/stm32l4/src/bin/spi_blocking_async.rs b/examples/stm32l4/src/bin/spi_blocking_async.rs
index e06b29b81..62ef0130e 100644
--- a/examples/stm32l4/src/bin/spi_blocking_async.rs
+++ b/examples/stm32l4/src/bin/spi_blocking_async.rs
@@ -4,17 +4,17 @@
 
 use defmt::*;
 use embassy_embedded_hal::adapter::BlockingAsync;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
 use embassy_stm32::spi::{Config, Spi};
 use embassy_stm32::time::Hertz;
-use embassy_stm32::Peripherals;
 use embedded_hal_async::spi::SpiBus;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let spi = Spi::new(
diff --git a/examples/stm32l4/src/bin/spi_dma.rs b/examples/stm32l4/src/bin/spi_dma.rs
index e44754bec..89471db5a 100644
--- a/examples/stm32l4/src/bin/spi_dma.rs
+++ b/examples/stm32l4/src/bin/spi_dma.rs
@@ -3,15 +3,15 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
 use embassy_stm32::spi::{Config, Spi};
 use embassy_stm32::time::Hertz;
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut spi = Spi::new(
diff --git a/examples/stm32l4/src/bin/usart_dma.rs b/examples/stm32l4/src/bin/usart_dma.rs
index fdd5a85e6..728906897 100644
--- a/examples/stm32l4/src/bin/usart_dma.rs
+++ b/examples/stm32l4/src/bin/usart_dma.rs
@@ -5,15 +5,15 @@
 use core::fmt::Write;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::usart::{Config, Uart};
-use embassy_stm32::Peripherals;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let config = Config::default();
diff --git a/examples/stm32l5/Cargo.toml b/examples/stm32l5/Cargo.toml
index 6466994ed..4d96d31fc 100644
--- a/examples/stm32l5/Cargo.toml
+++ b/examples/stm32l5/Cargo.toml
@@ -7,7 +7,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 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"] }
 embassy-usb-serial = { version = "0.1.0", path = "../../embassy-usb-serial", features = ["defmt"] }
@@ -20,7 +21,7 @@ defmt = "0.3"
 defmt-rtt = "0.3"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
diff --git a/examples/stm32l5/src/bin/button_exti.rs b/examples/stm32l5/src/bin/button_exti.rs
index 99462e597..e80ad2b3a 100644
--- a/examples/stm32l5/src/bin/button_exti.rs
+++ b/examples/stm32l5/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PC13, Pull::Down);
diff --git a/examples/stm32l5/src/bin/rng.rs b/examples/stm32l5/src/bin/rng.rs
index 45094374b..d359847e8 100644
--- a/examples/stm32l5/src/bin/rng.rs
+++ b/examples/stm32l5/src/bin/rng.rs
@@ -3,13 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::rcc::{ClockSrc, PLLClkDiv, PLLMul, PLLSource, PLLSrcDiv};
 use embassy_stm32::rng::Rng;
-use embassy_stm32::{Config, Peripherals};
+use embassy_stm32::Config;
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.rcc.mux = ClockSrc::PLL(
         PLLSource::HSI16,
@@ -18,11 +19,8 @@ fn config() -> Config {
         PLLMul::Mul8,
         Some(PLLClkDiv::Div2),
     );
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
     info!("Hello World!");
 
     let mut rng = Rng::new(p.RNG);
diff --git a/examples/stm32l5/src/bin/usb_ethernet.rs b/examples/stm32l5/src/bin/usb_ethernet.rs
index 9e1df15dd..7c53d03cc 100644
--- a/examples/stm32l5/src/bin/usb_ethernet.rs
+++ b/examples/stm32l5/src/bin/usb_ethernet.rs
@@ -7,14 +7,14 @@ use core::sync::atomic::{AtomicBool, Ordering};
 use core::task::Waker;
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_net::tcp::TcpSocket;
 use embassy_net::{PacketBox, PacketBoxExt, PacketBuf, Stack, StackResources};
 use embassy_stm32::rcc::*;
 use embassy_stm32::rng::Rng;
 use embassy_stm32::time::Hertz;
 use embassy_stm32::usb::Driver;
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
 use embassy_usb::{Builder, UsbDevice};
 use embassy_usb_ncm::{CdcNcmClass, Receiver, Sender, State};
 use embassy_util::blocking_mutex::raw::ThreadModeRawMutex;
@@ -83,18 +83,13 @@ async fn net_task(stack: &'static Stack<Device>) -> ! {
     stack.run().await
 }
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(spawner: Spawner) {
     let mut config = Config::default();
-    config.rcc.mux = ClockSrc::HSE(Hertz(16_000_000));
-
     config.rcc.mux = ClockSrc::PLL(PLLSource::HSI16, PLLClkDiv::Div2, PLLSrcDiv::Div1, PLLMul::Mul10, None);
     config.rcc.hsi48 = true;
+    let p = embassy_stm32::init(config);
 
-    config
-}
-
-#[embassy_executor::main(config = "config()")]
-async fn main(spawner: Spawner, p: Peripherals) {
     // Create the driver, from the HAL.
     let irq = interrupt::take!(USB_FS);
     let driver = Driver::new(p.USB, irq, p.PA12, p.PA11);
diff --git a/examples/stm32l5/src/bin/usb_hid_mouse.rs b/examples/stm32l5/src/bin/usb_hid_mouse.rs
index 6aac00881..f7e3d93e3 100644
--- a/examples/stm32l5/src/bin/usb_hid_mouse.rs
+++ b/examples/stm32l5/src/bin/usb_hid_mouse.rs
@@ -4,12 +4,12 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::rcc::*;
 use embassy_stm32::time::Hertz;
 use embassy_stm32::usb::Driver;
 use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_time::{Duration, Timer};
 use embassy_usb::control::OutResponse;
 use embassy_usb::Builder;
 use embassy_usb_hid::{HidWriter, ReportId, RequestHandler, State};
@@ -17,18 +17,13 @@ use futures::future::join;
 use usbd_hid::descriptor::{MouseReport, SerializedDescriptor};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
-    config.rcc.mux = ClockSrc::HSE(Hertz(16_000_000));
-
     config.rcc.mux = ClockSrc::PLL(PLLSource::HSI16, PLLClkDiv::Div2, PLLSrcDiv::Div1, PLLMul::Mul10, None);
     config.rcc.hsi48 = true;
+    let p = embassy_stm32::init(config);
 
-    config
-}
-
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
     // Create the driver, from the HAL.
     let irq = interrupt::take!(USB_FS);
     let driver = Driver::new(p.USB, irq, p.PA12, p.PA11);
diff --git a/examples/stm32l5/src/bin/usb_serial.rs b/examples/stm32l5/src/bin/usb_serial.rs
index 508bce8a8..323db6557 100644
--- a/examples/stm32l5/src/bin/usb_serial.rs
+++ b/examples/stm32l5/src/bin/usb_serial.rs
@@ -3,29 +3,24 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{panic, *};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::rcc::*;
 use embassy_stm32::time::Hertz;
 use embassy_stm32::usb::{Driver, Instance};
-use embassy_stm32::{interrupt, Config, Peripherals};
+use embassy_stm32::{interrupt, Config};
 use embassy_usb::driver::EndpointError;
 use embassy_usb::Builder;
 use embassy_usb_serial::{CdcAcmClass, State};
 use futures::future::join;
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
-    config.rcc.mux = ClockSrc::HSE(Hertz(16_000_000));
-
     config.rcc.mux = ClockSrc::PLL(PLLSource::HSI16, PLLClkDiv::Div2, PLLSrcDiv::Div1, PLLMul::Mul10, None);
     config.rcc.hsi48 = true;
+    let p = embassy_stm32::init(config);
 
-    config
-}
-
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: Spawner, p: Peripherals) {
     info!("Hello World!");
 
     // Create the driver, from the HAL.
diff --git a/examples/stm32u5/Cargo.toml b/examples/stm32u5/Cargo.toml
index 4ce95be4c..48833664a 100644
--- a/examples/stm32u5/Cargo.toml
+++ b/examples/stm32u5/Cargo.toml
@@ -5,13 +5,14 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "unstable-pac", "stm32u585ai", "time-driver-any", "memory-x" ]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/stm32u5/src/bin/blinky.rs b/examples/stm32u5/src/bin/blinky.rs
index 4f3eabc5e..976fb0b9a 100644
--- a/examples/stm32u5/src/bin/blinky.rs
+++ b/examples/stm32u5/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) -> ! {
+async fn main(_spawner: Spawner) -> ! {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PH7, Level::Low, Speed::Medium);
diff --git a/examples/stm32wb/Cargo.toml b/examples/stm32wb/Cargo.toml
index dc9107dd0..b46300764 100644
--- a/examples/stm32wb/Cargo.toml
+++ b/examples/stm32wb/Cargo.toml
@@ -5,13 +5,14 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32wb55cc", "time-driver-any", "exti"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/stm32wb/src/bin/blinky.rs b/examples/stm32wb/src/bin/blinky.rs
index 3d8e8391d..f9bf90d2e 100644
--- a/examples/stm32wb/src/bin/blinky.rs
+++ b/examples/stm32wb/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+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);
diff --git a/examples/stm32wb/src/bin/button_exti.rs b/examples/stm32wb/src/bin/button_exti.rs
index 41afaf4d6..3648db6ff 100644
--- a/examples/stm32wb/src/bin/button_exti.rs
+++ b/examples/stm32wb/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PC4, Pull::Up);
diff --git a/examples/stm32wl/Cargo.toml b/examples/stm32wl/Cargo.toml
index 00d63f02d..ae33478af 100644
--- a/examples/stm32wl/Cargo.toml
+++ b/examples/stm32wl/Cargo.toml
@@ -5,7 +5,8 @@ version = "0.1.0"
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["defmt"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "defmt-timestamp-uptime", "time-tick-32768hz"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-32768hz"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32wl55jc-cm4", "time-driver-any", "memory-x", "subghz", "unstable-pac", "exti"]  }
 embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["stm32wl", "time", "defmt"] }
 
@@ -15,7 +16,7 @@ lorawan = { version = "0.7.1", default-features = false, features = ["default-cr
 defmt = "0.3"
 defmt-rtt = "0.3"
 
-cortex-m = "0.7.3"
+cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 embedded-storage = "0.3.0"
diff --git a/examples/stm32wl/src/bin/blinky.rs b/examples/stm32wl/src/bin/blinky.rs
index e764b4cc3..6af5099ce 100644
--- a/examples/stm32wl/src/bin/blinky.rs
+++ b/examples/stm32wl/src/bin/blinky.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::Peripherals;
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let mut led = Output::new(p.PB15, Level::High, Speed::Low);
diff --git a/examples/stm32wl/src/bin/button_exti.rs b/examples/stm32wl/src/bin/button_exti.rs
index 9f143597d..1f02db5cf 100644
--- a/examples/stm32wl/src/bin/button_exti.rs
+++ b/examples/stm32wl/src/bin/button_exti.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Pull};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
     let button = Input::new(p.PA0, Pull::Up);
diff --git a/examples/stm32wl/src/bin/flash.rs b/examples/stm32wl/src/bin/flash.rs
index 46183b8a2..eb7489760 100644
--- a/examples/stm32wl/src/bin/flash.rs
+++ b/examples/stm32wl/src/bin/flash.rs
@@ -3,14 +3,14 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::{info, unwrap};
-use embassy_executor::executor::Spawner;
+use embassy_executor::Spawner;
 use embassy_stm32::flash::Flash;
-use embassy_stm32::Peripherals;
 use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, p: Peripherals) {
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
     info!("Hello Flash!");
 
     const ADDR: u32 = 0x36000;
diff --git a/examples/stm32wl/src/bin/lorawan.rs b/examples/stm32wl/src/bin/lorawan.rs
index 2db022ea2..7e8a8946d 100644
--- a/examples/stm32wl/src/bin/lorawan.rs
+++ b/examples/stm32wl/src/bin/lorawan.rs
@@ -5,26 +5,25 @@
 #![feature(generic_associated_types)]
 #![feature(type_alias_impl_trait)]
 
+use embassy_executor::Spawner;
 use embassy_lora::stm32wl::*;
 use embassy_lora::LoraTimer;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::gpio::{Level, Output, Pin, Speed};
 use embassy_stm32::rng::Rng;
 use embassy_stm32::subghz::*;
-use embassy_stm32::{interrupt, pac, Peripherals};
+use embassy_stm32::{interrupt, pac};
 use lorawan::default_crypto::DefaultFactory as Crypto;
 use lorawan_device::async_device::{region, Device, JoinMode};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> embassy_stm32::Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = embassy_stm32::Config::default();
     config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSI16;
     config.rcc.enable_lsi = true;
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: embassy_executor::executor::Spawner, p: Peripherals) {
     unsafe { pac::RCC.ccipr().modify(|w| w.set_rngsel(0b01)) }
 
     let ctrl1 = Output::new(p.PC3.degrade(), Level::High, Speed::High);
diff --git a/examples/stm32wl/src/bin/subghz.rs b/examples/stm32wl/src/bin/subghz.rs
index 775dfbbfc..d16e3f5e4 100644
--- a/examples/stm32wl/src/bin/subghz.rs
+++ b/examples/stm32wl/src/bin/subghz.rs
@@ -6,12 +6,13 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
+use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
+use embassy_stm32::interrupt;
 use embassy_stm32::interrupt::{Interrupt, InterruptExt};
 use embassy_stm32::subghz::*;
-use embassy_stm32::{interrupt, Peripherals};
 use embassy_util::channel::signal::Signal;
 use {defmt_rtt as _, panic_probe as _};
 
@@ -51,14 +52,12 @@ const TCXO_MODE: TcxoMode = TcxoMode::new()
 
 const TX_PARAMS: TxParams = TxParams::new().set_power(0x0D).set_ramp_time(RampTime::Micros40);
 
-fn config() -> embassy_stm32::Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
     let mut config = embassy_stm32::Config::default();
     config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSE32;
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main(config = "config()")]
-async fn main(_spawner: embassy_executor::executor::Spawner, p: Peripherals) {
     let mut led1 = Output::new(p.PB15, Level::High, Speed::Low);
     let mut led2 = Output::new(p.PB9, Level::Low, Speed::Low);
     let mut led3 = Output::new(p.PB11, Level::Low, Speed::Low);
diff --git a/examples/wasm/Cargo.toml b/examples/wasm/Cargo.toml
index 4e26f023c..c7f980366 100644
--- a/examples/wasm/Cargo.toml
+++ b/examples/wasm/Cargo.toml
@@ -8,10 +8,11 @@ crate-type = ["cdylib"]
 
 [dependencies]
 embassy-util = { version = "0.1.0", path = "../../embassy-util", features = ["log"] }
-embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["log", "wasm", "nightly"] }
+embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["log", "wasm", "nightly", "integrated-timers"] }
+embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["log", "wasm", "nightly"] }
 
 wasm-logger = "0.2.0"
 wasm-bindgen = "0.2"
 web-sys = { version = "0.3", features = ["Document", "Element", "HtmlElement", "Node", "Window" ] }
 log = "0.4.11"
-critical-section = "0.2.5"
+critical-section = "1.1"
diff --git a/examples/wasm/src/lib.rs b/examples/wasm/src/lib.rs
index 2e961e65a..d44c020b6 100644
--- a/examples/wasm/src/lib.rs
+++ b/examples/wasm/src/lib.rs
@@ -1,8 +1,8 @@
 #![feature(type_alias_impl_trait)]
 #![allow(incomplete_features)]
 
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
 
 #[embassy_executor::task]
 async fn ticker() {