Merge branch 'embassy-rs:main' into main

19 files changed, 333 insertions, 76 deletions

diff --git a/examples/rp/src/bin/i2c_slave.rs b/examples/rp/src/bin/i2c_slave.rs
index ac470d2be..9fffb4646 100644
--- a/examples/rp/src/bin/i2c_slave.rs
+++ b/examples/rp/src/bin/i2c_slave.rs
@@ -110,7 +110,7 @@ async fn main(spawner: Spawner) {
     let c_sda = p.PIN_1;
     let c_scl = p.PIN_0;
     let mut config = i2c::Config::default();
-    config.frequency = 5_000;
+    config.frequency = 1_000_000;
     let controller = i2c::I2c::new_async(p.I2C0, c_sda, c_scl, Irqs, config);
 
     unwrap!(spawner.spawn(controller_task(controller)));
diff --git a/examples/rp/src/bin/pio_ws2812.rs b/examples/rp/src/bin/pio_ws2812.rs
index 9a97cb8a7..ac145933c 100644
--- a/examples/rp/src/bin/pio_ws2812.rs
+++ b/examples/rp/src/bin/pio_ws2812.rs
@@ -12,7 +12,7 @@ use embassy_rp::pio::{
     Common, Config, FifoJoin, Instance, InterruptHandler, Pio, PioPin, ShiftConfig, ShiftDirection, StateMachine,
 };
 use embassy_rp::{bind_interrupts, clocks, into_ref, Peripheral, PeripheralRef};
-use embassy_time::Timer;
+use embassy_time::{Duration, Ticker, Timer};
 use fixed::types::U24F8;
 use fixed_macro::fixed;
 use smart_leds::RGB8;
@@ -107,6 +107,8 @@ impl<'d, P: Instance, const S: usize, const N: usize> Ws2812<'d, P, S, N> {
 
         // DMA transfer
         self.sm.tx().dma_push(self.dma.reborrow(), &words).await;
+
+        Timer::after_micros(55).await;
     }
 }
 
@@ -143,6 +145,7 @@ async fn main(_spawner: Spawner) {
     let mut ws2812 = Ws2812::new(&mut common, sm0, p.DMA_CH0, p.PIN_16);
 
     // Loop forever making RGB values and pushing them out to the WS2812.
+    let mut ticker = Ticker::every(Duration::from_millis(10));
     loop {
         for j in 0..(256 * 5) {
             debug!("New Colors:");
@@ -152,7 +155,7 @@ async fn main(_spawner: Spawner) {
             }
             ws2812.write(&data).await;
 
-            Timer::after_millis(10).await;
+            ticker.next().await;
         }
     }
 }
diff --git a/examples/rp/src/bin/usb_serial_with_logger.rs b/examples/rp/src/bin/usb_serial_with_logger.rs
new file mode 100644
index 000000000..4ba4fc25c
--- /dev/null
+++ b/examples/rp/src/bin/usb_serial_with_logger.rs
@@ -0,0 +1,117 @@
+//! This example shows how to use USB (Universal Serial Bus) in the RP2040 chip as well as how to create multiple usb classes for one device
+//!
+//! This creates a USB serial port that echos. It will also print out logging information on a separate serial device
+
+#![no_std]
+#![no_main]
+
+use defmt::{info, panic};
+use embassy_executor::Spawner;
+use embassy_futures::join::join;
+use embassy_rp::bind_interrupts;
+use embassy_rp::peripherals::USB;
+use embassy_rp::usb::{Driver, Instance, InterruptHandler};
+use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
+use embassy_usb::driver::EndpointError;
+use embassy_usb::{Builder, Config};
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    USBCTRL_IRQ => InterruptHandler<USB>;
+});
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    info!("Hello there!");
+
+    let p = embassy_rp::init(Default::default());
+
+    // Create the driver, from the HAL.
+    let driver = Driver::new(p.USB, Irqs);
+
+    // Create embassy-usb Config
+    let mut config = Config::new(0xc0de, 0xcafe);
+    config.manufacturer = Some("Embassy");
+    config.product = Some("USB-serial example");
+    config.serial_number = Some("12345678");
+    config.max_power = 100;
+    config.max_packet_size_0 = 64;
+
+    // Required for windows compatibility.
+    // https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/kconfig/CONFIG_CDC_ACM_IAD.html#help
+    config.device_class = 0xEF;
+    config.device_sub_class = 0x02;
+    config.device_protocol = 0x01;
+    config.composite_with_iads = true;
+
+    // Create embassy-usb DeviceBuilder using the driver and config.
+    // It needs some buffers for building the descriptors.
+    let mut device_descriptor = [0; 256];
+    let mut config_descriptor = [0; 256];
+    let mut bos_descriptor = [0; 256];
+    let mut control_buf = [0; 64];
+
+    let mut state = State::new();
+    let mut logger_state = State::new();
+
+    let mut builder = Builder::new(
+        driver,
+        config,
+        &mut device_descriptor,
+        &mut config_descriptor,
+        &mut bos_descriptor,
+        &mut [], // no msos descriptors
+        &mut control_buf,
+    );
+
+    // Create classes on the builder.
+    let mut class = CdcAcmClass::new(&mut builder, &mut state, 64);
+
+    // Create a class for the logger
+    let logger_class = CdcAcmClass::new(&mut builder, &mut logger_state, 64);
+
+    // Creates the logger and returns the logger future
+    // Note: You'll need to use log::info! afterwards instead of info! for this to work (this also applies to all the other log::* macros)
+    let log_fut = embassy_usb_logger::with_class!(1024, log::LevelFilter::Info, logger_class);
+
+    // Build the builder.
+    let mut usb = builder.build();
+
+    // Run the USB device.
+    let usb_fut = usb.run();
+
+    // Do stuff with the class!
+    let echo_fut = async {
+        loop {
+            class.wait_connection().await;
+            log::info!("Connected");
+            let _ = echo(&mut class).await;
+            log::info!("Disconnected");
+        }
+    };
+
+    // Run everything concurrently.
+    // If we had made everything `'static` above instead, we could do this using separate tasks instead.
+    join(usb_fut, join(echo_fut, log_fut)).await;
+}
+
+struct Disconnected {}
+
+impl From<EndpointError> for Disconnected {
+    fn from(val: EndpointError) -> Self {
+        match val {
+            EndpointError::BufferOverflow => panic!("Buffer overflow"),
+            EndpointError::Disabled => Disconnected {},
+        }
+    }
+}
+
+async fn echo<'d, T: Instance + 'd>(class: &mut CdcAcmClass<'d, Driver<'d, T>>) -> Result<(), Disconnected> {
+    let mut buf = [0; 64];
+    loop {
+        let n = class.read_packet(&mut buf).await?;
+        let data = &buf[..n];
+        info!("data: {:x}", data);
+        class.write_packet(data).await?;
+    }
+}
diff --git a/examples/stm32f0/Cargo.toml b/examples/stm32f0/Cargo.toml
index 71b0eb683..c74980dc4 100644
--- a/examples/stm32f0/Cargo.toml
+++ b/examples/stm32f0/Cargo.toml
@@ -13,7 +13,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 defmt = "0.3"
 defmt-rtt = "0.4"
-panic-probe = "0.3"
+panic-probe = { version = "0.3", features = ["print-defmt"] }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
 embassy-executor = { version = "0.5.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.3.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
diff --git a/examples/stm32f1/src/bin/hello.rs b/examples/stm32f1/src/bin/hello.rs
index 7b761ecc1..3c295612c 100644
--- a/examples/stm32f1/src/bin/hello.rs
+++ b/examples/stm32f1/src/bin/hello.rs
@@ -3,15 +3,13 @@
 
 use defmt::info;
 use embassy_executor::Spawner;
-use embassy_stm32::time::Hertz;
 use embassy_stm32::Config;
 use embassy_time::Timer;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) -> ! {
-    let mut config = Config::default();
-    config.rcc.sys_ck = Some(Hertz(36_000_000));
+    let config = Config::default();
     let _p = embassy_stm32::init(config);
 
     loop {
diff --git a/examples/stm32f1/src/bin/usb_serial.rs b/examples/stm32f1/src/bin/usb_serial.rs
index e28381893..1ae6c1dee 100644
--- a/examples/stm32f1/src/bin/usb_serial.rs
+++ b/examples/stm32f1/src/bin/usb_serial.rs
@@ -21,9 +21,23 @@ bind_interrupts!(struct Irqs {
 #[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));
+    {
+        use embassy_stm32::rcc::*;
+        config.rcc.hse = Some(Hse {
+            freq: Hertz(8_000_000),
+            // Oscillator for bluepill, Bypass for nucleos.
+            mode: HseMode::Oscillator,
+        });
+        config.rcc.pll = Some(Pll {
+            src: PllSource::HSE,
+            prediv: PllPreDiv::DIV1,
+            mul: PllMul::MUL9,
+        });
+        config.rcc.sys = Sysclk::PLL1_P;
+        config.rcc.ahb_pre = AHBPrescaler::DIV1;
+        config.rcc.apb1_pre = APBPrescaler::DIV2;
+        config.rcc.apb2_pre = APBPrescaler::DIV1;
+    }
     let mut p = embassy_stm32::init(config);
 
     info!("Hello World!");
diff --git a/examples/stm32f3/src/bin/hello.rs b/examples/stm32f3/src/bin/hello.rs
index fd54da53d..3c295612c 100644
--- a/examples/stm32f3/src/bin/hello.rs
+++ b/examples/stm32f3/src/bin/hello.rs
@@ -3,16 +3,13 @@
 
 use defmt::info;
 use embassy_executor::Spawner;
-use embassy_stm32::time::Hertz;
 use embassy_stm32::Config;
 use embassy_time::Timer;
 use {defmt_rtt as _, panic_probe as _};
 
 #[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));
+    let config = Config::default();
     let _p = embassy_stm32::init(config);
 
     loop {
diff --git a/examples/stm32f3/src/bin/usb_serial.rs b/examples/stm32f3/src/bin/usb_serial.rs
index cf9ecedfa..ee1c43afd 100644
--- a/examples/stm32f3/src/bin/usb_serial.rs
+++ b/examples/stm32f3/src/bin/usb_serial.rs
@@ -21,11 +21,22 @@ bind_interrupts!(struct Irqs {
 #[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;
+    {
+        use embassy_stm32::rcc::*;
+        config.rcc.hse = Some(Hse {
+            freq: mhz(8),
+            mode: HseMode::Bypass,
+        });
+        config.rcc.pll = Some(Pll {
+            src: PllSource::HSE,
+            prediv: PllPreDiv::DIV1,
+            mul: PllMul::MUL9,
+        });
+        config.rcc.sys = Sysclk::PLL1_P;
+        config.rcc.ahb_pre = AHBPrescaler::DIV1;
+        config.rcc.apb1_pre = APBPrescaler::DIV2;
+        config.rcc.apb2_pre = APBPrescaler::DIV1;
+    }
     let p = embassy_stm32::init(config);
 
     info!("Hello World!");
diff --git a/examples/stm32f334/src/bin/adc.rs b/examples/stm32f334/src/bin/adc.rs
index 063ee9dac..a9fb7f1a6 100644
--- a/examples/stm32f334/src/bin/adc.rs
+++ b/examples/stm32f334/src/bin/adc.rs
@@ -5,7 +5,6 @@ use defmt::info;
 use embassy_executor::Spawner;
 use embassy_stm32::adc::{Adc, SampleTime};
 use embassy_stm32::peripherals::ADC1;
-use embassy_stm32::rcc::{AdcClockSource, Adcpres};
 use embassy_stm32::time::mhz;
 use embassy_stm32::{adc, bind_interrupts, Config};
 use embassy_time::{Delay, Timer};
@@ -18,12 +17,23 @@ bind_interrupts!(struct Irqs {
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
-    config.rcc.sysclk = Some(mhz(64));
-    config.rcc.hclk = Some(mhz(64));
-    config.rcc.pclk1 = Some(mhz(32));
-    config.rcc.pclk2 = Some(mhz(64));
-    config.rcc.adc = Some(AdcClockSource::Pll(Adcpres::DIV1));
-
+    {
+        use embassy_stm32::rcc::*;
+        config.rcc.hse = Some(Hse {
+            freq: mhz(8),
+            mode: HseMode::Bypass,
+        });
+        config.rcc.pll = Some(Pll {
+            src: PllSource::HSE,
+            prediv: PllPreDiv::DIV1,
+            mul: PllMul::MUL9,
+        });
+        config.rcc.sys = Sysclk::PLL1_P;
+        config.rcc.ahb_pre = AHBPrescaler::DIV1;
+        config.rcc.apb1_pre = APBPrescaler::DIV2;
+        config.rcc.apb2_pre = APBPrescaler::DIV1;
+        config.rcc.adc = AdcClockSource::Pll(AdcPllPrescaler::DIV1);
+    }
     let mut p = embassy_stm32::init(config);
 
     info!("create adc...");
diff --git a/examples/stm32f334/src/bin/hello.rs b/examples/stm32f334/src/bin/hello.rs
index fd54da53d..3c295612c 100644
--- a/examples/stm32f334/src/bin/hello.rs
+++ b/examples/stm32f334/src/bin/hello.rs
@@ -3,16 +3,13 @@
 
 use defmt::info;
 use embassy_executor::Spawner;
-use embassy_stm32::time::Hertz;
 use embassy_stm32::Config;
 use embassy_time::Timer;
 use {defmt_rtt as _, panic_probe as _};
 
 #[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));
+    let config = Config::default();
     let _p = embassy_stm32::init(config);
 
     loop {
diff --git a/examples/stm32f334/src/bin/opamp.rs b/examples/stm32f334/src/bin/opamp.rs
index 850a0e335..6f25191be 100644
--- a/examples/stm32f334/src/bin/opamp.rs
+++ b/examples/stm32f334/src/bin/opamp.rs
@@ -6,7 +6,6 @@ use embassy_executor::Spawner;
 use embassy_stm32::adc::{Adc, SampleTime};
 use embassy_stm32::opamp::{OpAmp, OpAmpGain};
 use embassy_stm32::peripherals::ADC2;
-use embassy_stm32::rcc::{AdcClockSource, Adcpres};
 use embassy_stm32::time::mhz;
 use embassy_stm32::{adc, bind_interrupts, Config};
 use embassy_time::{Delay, Timer};
@@ -19,12 +18,23 @@ bind_interrupts!(struct Irqs {
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
-    config.rcc.sysclk = Some(mhz(64));
-    config.rcc.hclk = Some(mhz(64));
-    config.rcc.pclk1 = Some(mhz(32));
-    config.rcc.pclk2 = Some(mhz(64));
-    config.rcc.adc = Some(AdcClockSource::Pll(Adcpres::DIV1));
-
+    {
+        use embassy_stm32::rcc::*;
+        config.rcc.hse = Some(Hse {
+            freq: mhz(8),
+            mode: HseMode::Bypass,
+        });
+        config.rcc.pll = Some(Pll {
+            src: PllSource::HSE,
+            prediv: PllPreDiv::DIV1,
+            mul: PllMul::MUL9,
+        });
+        config.rcc.sys = Sysclk::PLL1_P;
+        config.rcc.ahb_pre = AHBPrescaler::DIV1;
+        config.rcc.apb1_pre = APBPrescaler::DIV2;
+        config.rcc.apb2_pre = APBPrescaler::DIV1;
+        config.rcc.adc = AdcClockSource::Pll(AdcPllPrescaler::DIV1);
+    }
     let mut p = embassy_stm32::init(config);
 
     info!("create adc...");
diff --git a/examples/stm32f334/src/bin/pwm.rs b/examples/stm32f334/src/bin/pwm.rs
index c149cad92..7fc1ea926 100644
--- a/examples/stm32f334/src/bin/pwm.rs
+++ b/examples/stm32f334/src/bin/pwm.rs
@@ -4,7 +4,6 @@
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_stm32::hrtim::*;
-use embassy_stm32::rcc::HrtimClockSource;
 use embassy_stm32::time::{khz, mhz};
 use embassy_stm32::Config;
 use embassy_time::Timer;
@@ -12,14 +11,26 @@ use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
-    let mut config: Config = Default::default();
-    config.rcc.sysclk = Some(mhz(64));
-    config.rcc.hclk = Some(mhz(64));
-    config.rcc.pclk1 = Some(mhz(32));
-    config.rcc.pclk2 = Some(mhz(64));
-    config.rcc.hrtim = HrtimClockSource::PllClk;
-
+    let mut config = Config::default();
+    {
+        use embassy_stm32::rcc::*;
+        config.rcc.hse = Some(Hse {
+            freq: mhz(8),
+            mode: HseMode::Bypass,
+        });
+        config.rcc.pll = Some(Pll {
+            src: PllSource::HSE,
+            prediv: PllPreDiv::DIV1,
+            mul: PllMul::MUL9,
+        });
+        config.rcc.sys = Sysclk::PLL1_P;
+        config.rcc.ahb_pre = AHBPrescaler::DIV1;
+        config.rcc.apb1_pre = APBPrescaler::DIV2;
+        config.rcc.apb2_pre = APBPrescaler::DIV1;
+        config.rcc.hrtim = HrtimClockSource::PllClk;
+    }
     let p = embassy_stm32::init(config);
+
     info!("Hello World!");
 
     let ch1 = PwmPin::new_cha(p.PA8);
diff --git a/examples/stm32f7/.cargo/config.toml b/examples/stm32f7/.cargo/config.toml
index 9088eea6e..086da2d78 100644
--- a/examples/stm32f7/.cargo/config.toml
+++ b/examples/stm32f7/.cargo/config.toml
@@ -1,6 +1,6 @@
 [target.'cfg(all(target_arch = "arm", target_os = "none"))']
 # replace STM32F429ZITx with your chip as listed in `probe-rs chip list`
-runner = "probe-rs run --chip STM32F767ZITx"
+runner = "probe-rs run --chip STM32F777ZITx"
 
 [build]
 target = "thumbv7em-none-eabihf"
diff --git a/examples/stm32f7/Cargo.toml b/examples/stm32f7/Cargo.toml
index 941ba38cd..736e81723 100644
--- a/examples/stm32f7/Cargo.toml
+++ b/examples/stm32f7/Cargo.toml
@@ -5,8 +5,8 @@ version = "0.1.0"
 license = "MIT OR Apache-2.0"
 
 [dependencies]
-# Change stm32f767zi to your chip name, if necessary.
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f767zi", "memory-x", "unstable-pac", "time-driver-any", "exti"]  }
+# Change stm32f777zi to your chip name, if necessary.
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f777zi", "memory-x", "unstable-pac", "time-driver-any", "exti"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
 embassy-executor = { version = "0.5.0", path = "../../embassy-executor", features = ["task-arena-size-32768", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.3.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
@@ -28,6 +28,8 @@ rand_core = "0.6.3"
 critical-section = "1.1"
 embedded-storage = "0.3.1"
 static_cell = "2"
+sha2 = { version = "0.10.8", default-features = false }
+hmac = "0.12.1"
 
 [profile.release]
 debug = 2
diff --git a/examples/stm32f7/src/bin/eth.rs b/examples/stm32f7/src/bin/eth.rs
index 5bff48197..9a608e909 100644
--- a/examples/stm32f7/src/bin/eth.rs
+++ b/examples/stm32f7/src/bin/eth.rs
@@ -19,7 +19,7 @@ use {defmt_rtt as _, panic_probe as _};
 
 bind_interrupts!(struct Irqs {
     ETH => eth::InterruptHandler;
-    RNG => rng::InterruptHandler<peripherals::RNG>;
+    HASH_RNG => rng::InterruptHandler<peripherals::RNG>;
 });
 
 type Device = Ethernet<'static, ETH, GenericSMI>;
diff --git a/examples/stm32f7/src/bin/hash.rs b/examples/stm32f7/src/bin/hash.rs
new file mode 100644
index 000000000..c2d1a7158
--- /dev/null
+++ b/examples/stm32f7/src/bin/hash.rs
@@ -0,0 +1,78 @@
+#![no_std]
+#![no_main]
+
+use defmt::info;
+use embassy_executor::Spawner;
+use embassy_stm32::hash::*;
+use embassy_stm32::{bind_interrupts, hash, peripherals, Config};
+use embassy_time::Instant;
+use hmac::{Hmac, Mac};
+use sha2::{Digest, Sha256};
+use {defmt_rtt as _, panic_probe as _};
+
+type HmacSha256 = Hmac<Sha256>;
+
+bind_interrupts!(struct Irqs {
+    HASH_RNG => hash::InterruptHandler<peripherals::HASH>;
+});
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
+    let config = Config::default();
+    let p = embassy_stm32::init(config);
+
+    let test_1: &[u8] = b"as;dfhaslfhas;oifvnasd;nifvnhasd;nifvhndlkfghsd;nvfnahssdfgsdafgsasdfasdfasdfasdfasdfghjklmnbvcalskdjghalskdjgfbaslkdjfgbalskdjgbalskdjbdfhsdfhsfghsfghfgh";
+    let test_2: &[u8] = b"fdhalksdjfhlasdjkfhalskdjfhgal;skdjfgalskdhfjgalskdjfglafgadfgdfgdafgaadsfgfgdfgadrgsyfthxfgjfhklhjkfgukhulkvhlvhukgfhfsrghzdhxyfufynufyuszeradrtydyytserr";
+
+    let mut hw_hasher = Hash::new(p.HASH, p.DMA2_CH7, Irqs);
+
+    let hw_start_time = Instant::now();
+
+    // Compute a digest in hardware.
+    let mut context = hw_hasher.start(Algorithm::SHA256, DataType::Width8, None);
+    hw_hasher.update(&mut context, test_1).await;
+    hw_hasher.update(&mut context, test_2).await;
+    let mut hw_digest: [u8; 32] = [0; 32];
+    hw_hasher.finish(context, &mut hw_digest).await;
+
+    let hw_end_time = Instant::now();
+    let hw_execution_time = hw_end_time - hw_start_time;
+
+    let sw_start_time = Instant::now();
+
+    // Compute a digest in software.
+    let mut sw_hasher = Sha256::new();
+    sw_hasher.update(test_1);
+    sw_hasher.update(test_2);
+    let sw_digest = sw_hasher.finalize();
+
+    let sw_end_time = Instant::now();
+    let sw_execution_time = sw_end_time - sw_start_time;
+
+    info!("Hardware Digest: {:?}", hw_digest);
+    info!("Software Digest: {:?}", sw_digest[..]);
+    info!("Hardware Execution Time: {:?}", hw_execution_time);
+    info!("Software Execution Time: {:?}", sw_execution_time);
+    assert_eq!(hw_digest, sw_digest[..]);
+
+    let hmac_key: [u8; 64] = [0x55; 64];
+
+    // Compute HMAC in hardware.
+    let mut sha256hmac_context = hw_hasher.start(Algorithm::SHA256, DataType::Width8, Some(&hmac_key));
+    hw_hasher.update(&mut sha256hmac_context, test_1).await;
+    hw_hasher.update(&mut sha256hmac_context, test_2).await;
+    let mut hw_hmac: [u8; 32] = [0; 32];
+    hw_hasher.finish(sha256hmac_context, &mut hw_hmac).await;
+
+    // Compute HMAC in software.
+    let mut sw_mac = HmacSha256::new_from_slice(&hmac_key).unwrap();
+    sw_mac.update(test_1);
+    sw_mac.update(test_2);
+    let sw_hmac = sw_mac.finalize().into_bytes();
+
+    info!("Hardware HMAC: {:?}", hw_hmac);
+    info!("Software HMAC: {:?}", sw_hmac[..]);
+    assert_eq!(hw_hmac, sw_hmac[..]);
+
+    loop {}
+}
diff --git a/examples/stm32g4/src/bin/adc.rs b/examples/stm32g4/src/bin/adc.rs
index 35324d931..99e3ef63b 100644
--- a/examples/stm32g4/src/bin/adc.rs
+++ b/examples/stm32g4/src/bin/adc.rs
@@ -4,7 +4,7 @@
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_stm32::adc::{Adc, SampleTime};
-use embassy_stm32::rcc::{AdcClockSource, ClockSrc, Pll, PllM, PllN, PllR, PllSource};
+use embassy_stm32::rcc::{AdcClockSource, Pll, PllMul, PllPreDiv, PllRDiv, Pllsrc, Sysclk};
 use embassy_stm32::Config;
 use embassy_time::{Delay, Timer};
 use {defmt_rtt as _, panic_probe as _};
@@ -14,17 +14,17 @@ async fn main(_spawner: Spawner) {
     let mut config = Config::default();
 
     config.rcc.pll = Some(Pll {
-        source: PllSource::HSI,
-        prediv_m: PllM::DIV4,
-        mul_n: PllN::MUL85,
-        div_p: None,
-        div_q: None,
+        source: Pllsrc::HSI,
+        prediv: PllPreDiv::DIV4,
+        mul: PllMul::MUL85,
+        divp: None,
+        divq: None,
         // Main system clock at 170 MHz
-        div_r: Some(PllR::DIV2),
+        divr: Some(PllRDiv::DIV2),
     });
 
     config.rcc.adc12_clock_source = AdcClockSource::SYS;
-    config.rcc.mux = ClockSrc::PLL;
+    config.rcc.sys = Sysclk::PLL1_R;
 
     let mut p = embassy_stm32::init(config);
     info!("Hello World!");
diff --git a/examples/stm32g4/src/bin/pll.rs b/examples/stm32g4/src/bin/pll.rs
index 46ebe0b0d..5274de79d 100644
--- a/examples/stm32g4/src/bin/pll.rs
+++ b/examples/stm32g4/src/bin/pll.rs
@@ -3,7 +3,7 @@
 
 use defmt::*;
 use embassy_executor::Spawner;
-use embassy_stm32::rcc::{ClockSrc, Pll, PllM, PllN, PllR, PllSource};
+use embassy_stm32::rcc::{Pll, PllMul, PllPreDiv, PllRDiv, Pllsrc, Sysclk};
 use embassy_stm32::Config;
 use embassy_time::Timer;
 use {defmt_rtt as _, panic_probe as _};
@@ -13,16 +13,16 @@ async fn main(_spawner: Spawner) {
     let mut config = Config::default();
 
     config.rcc.pll = Some(Pll {
-        source: PllSource::HSI,
-        prediv_m: PllM::DIV4,
-        mul_n: PllN::MUL85,
-        div_p: None,
-        div_q: None,
+        source: Pllsrc::HSI,
+        prediv: PllPreDiv::DIV4,
+        mul: PllMul::MUL85,
+        divp: None,
+        divq: None,
         // Main system clock at 170 MHz
-        div_r: Some(PllR::DIV2),
+        divr: Some(PllRDiv::DIV2),
     });
 
-    config.rcc.mux = ClockSrc::PLL;
+    config.rcc.sys = Sysclk::PLL1_R;
 
     let _p = embassy_stm32::init(config);
     info!("Hello World!");
diff --git a/examples/stm32g4/src/bin/usb_serial.rs b/examples/stm32g4/src/bin/usb_serial.rs
index c26fa76b7..989fef5b0 100644
--- a/examples/stm32g4/src/bin/usb_serial.rs
+++ b/examples/stm32g4/src/bin/usb_serial.rs
@@ -3,7 +3,9 @@
 
 use defmt::{panic, *};
 use embassy_executor::Spawner;
-use embassy_stm32::rcc::{Clock48MhzSrc, ClockSrc, Hsi48Config, Pll, PllM, PllN, PllQ, PllR, PllSource};
+use embassy_stm32::rcc::{
+    Clk48Src, Hse, HseMode, Hsi48Config, Pll, PllMul, PllPreDiv, PllQDiv, PllRDiv, Pllsrc, Sysclk,
+};
 use embassy_stm32::time::Hertz;
 use embassy_stm32::usb::{self, Driver, Instance};
 use embassy_stm32::{bind_interrupts, peripherals, Config};
@@ -24,25 +26,32 @@ async fn main(_spawner: Spawner) {
     // Change this to `false` to use the HSE clock source for the USB. This example assumes an 8MHz HSE.
     const USE_HSI48: bool = true;
 
-    let plldivq = if USE_HSI48 { None } else { Some(PllQ::DIV6) };
+    let plldivq = if USE_HSI48 { None } else { Some(PllQDiv::DIV6) };
+
+    config.rcc.hse = Some(Hse {
+        freq: Hertz(8_000_000),
+        mode: HseMode::Oscillator,
+    });
 
     config.rcc.pll = Some(Pll {
-        source: PllSource::HSE(Hertz(8_000_000)),
-        prediv_m: PllM::DIV2,
-        mul_n: PllN::MUL72,
-        div_p: None,
-        div_q: plldivq,
+        source: Pllsrc::HSE,
+        prediv: PllPreDiv::DIV2,
+        mul: PllMul::MUL72,
+        divp: None,
+        divq: plldivq,
         // Main system clock at 144 MHz
-        div_r: Some(PllR::DIV2),
+        divr: Some(PllRDiv::DIV2),
     });
 
-    config.rcc.mux = ClockSrc::PLL;
+    config.rcc.sys = Sysclk::PLL1_R;
+    config.rcc.boost = true; // BOOST!
 
     if USE_HSI48 {
         // Sets up the Clock Recovery System (CRS) to use the USB SOF to trim the HSI48 oscillator.
-        config.rcc.clock_48mhz_src = Some(Clock48MhzSrc::Hsi48(Hsi48Config { sync_from_usb: true }));
+        config.rcc.hsi48 = Some(Hsi48Config { sync_from_usb: true });
+        config.rcc.clk48_src = Clk48Src::HSI48;
     } else {
-        config.rcc.clock_48mhz_src = Some(Clock48MhzSrc::PllQ);
+        config.rcc.clk48_src = Clk48Src::PLL1_Q;
     }
 
     let p = embassy_stm32::init(config);