Merge pull request 'GPIO init' (#2) from gpio-init into main

Reviewed-on: #2

.gitignore

@@ -12,3 +12,5 @@ Cargo.lock
 
 # These are backup files generated by rustfmt
 **/*.rs.bk
+
+/app.map

README.md

@@ -1,11 +1,18 @@
-# Vorago VA416xx Rust Workspace
+Vorago VA416xx Rust Support
+=========
 
-After cloning, run
+This crate collection provided support to write Rust applications for the VA416XX family
+of devices.
 
-```sh
-git submodule init
-git submodule update
-```
+## List of crates
+
+This workspace contains the following crates:
+
+- The `va416xx` PAC crate containing basic low-level register definition
+- The `va416xx-hal` HAL crate containing higher-level abstractions on top of
+  the PAC register crate.
+- The `vorago-peb1` BSP crate containing support for the PEB1 development
+  board.
 
 ## Using the `.cargo/config.toml` file
 
@@ -17,3 +24,60 @@ cp .cargo/def-config.toml .cargo/config.toml
 
 You then can adapt the `config.toml` to your needs. For example, you can configure runners
 to conveniently flash with `cargo run`.
+
+## Using the sample VS Code files
+
+Use the following command to have a starting configuration for VS Code:
+
+```sh
+cp vscode .vscode -r
+```
+
+You can then adapt the files in `.vscode` to your needs.
+
+## Flashing, running and debugging with the command line
+
+### Prerequisites
+
+1. [SEGGER J-Link tools](https://www.segger.com/downloads/jlink/) installed
+2. [gdb-multiarch](https://packages.debian.org/sid/gdb-multiarch) or similar
+   cross-architecture debugger installed. All commands here assume `gdb-multiarch`.
+
+### Flashing and debugging the blinky application
+
+You can build the blinky example application with the following command
+
+```sh
+cargo build -p va416xx-hal --example blinky
+```
+
+Start the GDB server first. The server needs to be started with a certain configuration and with
+a JLink script to disable ROM protection.
+For example, on Debian based system the following command can be used to do this (this command
+is also run when running the `jlink-gdb.sh` script)
+
+```sh
+JLinkGDBServer -select USB -device Cortex-M4 -endian little -if SWD -speed 2000 \
+  -LocalhostOnly -vd -jlinkscriptfile ./jlink/JLinkSettings.JLinkScript
+```
+
+After this, you can flash and debug the application with the following command
+
+```sh
+gdb-mutliarch -q -x jlink/jlink.gdb target/thumbv7em-none-eabihf/debug/examples/blinky
+```
+
+Please note that you can automate all steps except starting the GDB server by using a cargo
+runner configuration, for example with the following lines in your `.cargo/config.toml` file:
+
+```toml
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+runner = "gdb-multiarch -q -x jlink/jlink.gdb"
+```
+
+After that, you can simply use `cargo run -p va416xx-hal --example blinky` to flash the blinky
+example.
+
+## Flashing, running and debugging with VS Code
+
+TODO

va416xx-hal/.vscode/launch.json

@@ -1,26 +0,0 @@
-{
-    // Use IntelliSense to learn about possible attributes.
-    // Hover to view descriptions of existing attributes.
-    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "type": "cortex-debug",
-            "request": "launch",
-            "name": "Debug LED Blinky",
-            // The user should start the J-Link server themselves for now. This is because the
-            // Cortex-Debug will issue a reset command, which is problematic even with
-            // a valid JLinkScript file
-            "servertype": "external",
-            "gdbTarget": "localhost:2331",
-            "gdbPath": "/usr/bin/gdb-multiarch",
-            "cwd": "${workspaceRoot}",
-            "device": "Cortex-M4",
-            "svdFile": "../va416xx/svd/va416xx-base.svd",
-            "preLaunchTask": "rust: cargo build led blinky",
-            "executable": "${workspaceFolder}/target/thumbv7em-none-eabihf/debug/examples/blinky",
-            "interface": "swd",
-            "runToMain": true,
-        },
-    ]
-}

va416xx-hal/.vscode/tasks.json

@@ -1,19 +0,0 @@
-{
-    // See https://go.microsoft.com/fwlink/?LinkId=733558
-    // for the documentation about the tasks.json format
-    "version": "2.0.0",
-    "tasks": [
-        {
-            "label": "rust: cargo build led blinky",
-            "type": "shell",
-            "command": "~/.cargo/bin/cargo", // note: full path to the cargo
-            "args": [
-                "build", "--example", "blinky"
-            ],
-            "group": {
-                "kind": "build",
-                "isDefault": true
-            }
-        },
-    ]
-}

va416xx-hal/Cargo.toml

@@ -14,6 +14,9 @@ categories = ["embedded", "no-std", "hardware-support"]
 cortex-m = "0.7"
 cortex-m-rt = "0.7"
 nb = "1"
+paste = "1"
+embedded-hal = "1"
+typenum = "1.12.0"
 
 [dependencies.va416xx]
 path = "../va416xx"

va416xx-hal/examples/blinky-pac.rs

@@ -0,0 +1,34 @@
+//! Simple blinky example
+#![no_main]
+#![no_std]
+
+use cortex_m_rt::entry;
+use panic_halt as _;
+use va416xx_hal::pac;
+
+// Mask for the LED
+const LED_PG5: u32 = 1 << 5;
+
+#[entry]
+fn main() -> ! {
+    // SAFETY: Peripherals are only stolen once here.
+    let dp = unsafe { pac::Peripherals::steal() };
+    // Enable all peripheral clocks
+    dp.sysconfig
+        .peripheral_clk_enable()
+        .modify(|_, w| unsafe { w.bits(0xffffffff) });
+    dp.portg.dir().modify(|_, w| unsafe { w.bits(LED_PG5) });
+    dp.portg
+        .datamask()
+        .modify(|_, w| unsafe { w.bits(LED_PG5) });
+    for _ in 0..10 {
+        dp.portg.clrout().write(|w| unsafe { w.bits(LED_PG5) });
+        cortex_m::asm::delay(2_000_000);
+        dp.portg.setout().write(|w| unsafe { w.bits(LED_PG5) });
+        cortex_m::asm::delay(2_000_000);
+    }
+    loop {
+        dp.portg.togout().write(|w| unsafe { w.bits(LED_PG5) });
+        cortex_m::asm::delay(2_000_000);
+    }
+}

va416xx-hal/examples/blinky.rs

@@ -1,34 +1,21 @@
-//! Simple blinky example
+//! Simple blinky example using the HAL
 #![no_main]
 #![no_std]
 
 use cortex_m_rt::entry;
+use embedded_hal::digital::StatefulOutputPin;
 use panic_halt as _;
-use va416xx_hal::pac;
-
-// Mask for the LED
-const LED_PG5: u32 = 1 << 5;
+use va416xx_hal::{gpio::PinsG, pac};
 
 #[entry]
 fn main() -> ! {
     // SAFETY: Peripherals are only stolen once here.
-    let dp = unsafe { pac::Peripherals::steal() };
-    // Enable all peripheral clocks
-    dp.sysconfig
-        .peripheral_clk_enable()
-        .modify(|_, w| unsafe { w.bits(0xffffffff) });
-    dp.portg.dir().modify(|_, w| unsafe { w.bits(LED_PG5) });
-    dp.portg
-        .datamask()
-        .modify(|_, w| unsafe { w.bits(LED_PG5) });
-    for _ in 0..10 {
-        dp.portg.clrout().write(|w| unsafe { w.bits(LED_PG5) });
-        cortex_m::asm::delay(2_000_000);
-        dp.portg.setout().write(|w| unsafe { w.bits(LED_PG5) });
-        cortex_m::asm::delay(2_000_000);
-    }
+    let mut dp = unsafe { pac::Peripherals::steal() };
+    let portg = PinsG::new(&mut dp.sysconfig, Some(dp.ioconfig), dp.portg);
+    let mut led = portg.pg5.into_readable_push_pull_output();
+    //let mut delay = CountDownTimer::new(&mut dp.SYSCONFIG, 50.mhz(), dp.TIM0);
     loop {
-        dp.portg.togout().write(|w| unsafe { w.bits(LED_PG5) });
         cortex_m::asm::delay(2_000_000);
+        led.toggle().ok();
     }
 }

va416xx-hal/src/clock.rs

@@ -36,6 +36,20 @@ pub enum PeripheralSelect {
     PortG = 30,
 }
 
+pub type PeripheralClocks = PeripheralSelect;
+
+#[derive(Debug, PartialEq, Eq)]
+pub enum FilterClkSel {
+    SysClk = 0,
+    Clk1 = 1,
+    Clk2 = 2,
+    Clk3 = 3,
+    Clk4 = 4,
+    Clk5 = 5,
+    Clk6 = 6,
+    Clk7 = 7,
+}
+
 pub fn enable_peripheral_clock(syscfg: &mut Sysconfig, clock: PeripheralSelect) {
     syscfg
         .peripheral_clk_enable()

va416xx-hal/src/gpio/dynpin.rs

@@ -0,0 +1,453 @@
+use embedded_hal::digital::{ErrorKind, ErrorType, InputPin, OutputPin, StatefulOutputPin};
+
+use super::{
+    reg::RegisterInterface, FilterClkSel, FilterType, InterruptEdge, InterruptLevel, Pin, PinId,
+    PinMode, PinState,
+};
+
+//==================================================================================================
+//  DynPinMode configurations
+//==================================================================================================
+
+/// Value-level `enum` for disabled configurations
+#[derive(PartialEq, Eq, Clone, Copy)]
+pub enum DynDisabled {
+    Floating,
+    PullDown,
+    PullUp,
+}
+
+/// Value-level `enum` for input configurations
+#[derive(PartialEq, Eq, Clone, Copy)]
+pub enum DynInput {
+    Floating,
+    PullDown,
+    PullUp,
+}
+
+/// Value-level `enum` for output configurations
+#[derive(PartialEq, Eq, Clone, Copy)]
+pub enum DynOutput {
+    PushPull,
+    OpenDrain,
+    ReadablePushPull,
+    ReadableOpenDrain,
+}
+
+pub type DynAlternate = crate::FunSel;
+
+//==================================================================================================
+//  DynPinMode
+//==================================================================================================
+
+/// Value-level `enum` representing pin modes
+#[derive(PartialEq, Eq, Clone, Copy)]
+pub enum DynPinMode {
+    Input(DynInput),
+    Output(DynOutput),
+    Alternate(DynAlternate),
+}
+
+/// Value-level variant of [`DynPinMode`] for floating input mode
+pub const DYN_FLOATING_INPUT: DynPinMode = DynPinMode::Input(DynInput::Floating);
+/// Value-level variant of [`DynPinMode`] for pull-down input mode
+pub const DYN_PULL_DOWN_INPUT: DynPinMode = DynPinMode::Input(DynInput::PullDown);
+/// Value-level variant of [`DynPinMode`] for pull-up input mode
+pub const DYN_PULL_UP_INPUT: DynPinMode = DynPinMode::Input(DynInput::PullUp);
+
+/// Value-level variant of [`DynPinMode`] for push-pull output mode
+pub const DYN_PUSH_PULL_OUTPUT: DynPinMode = DynPinMode::Output(DynOutput::PushPull);
+/// Value-level variant of [`DynPinMode`] for open-drain output mode
+pub const DYN_OPEN_DRAIN_OUTPUT: DynPinMode = DynPinMode::Output(DynOutput::OpenDrain);
+/// Value-level variant of [`DynPinMode`] for readable push-pull output mode
+pub const DYN_RD_PUSH_PULL_OUTPUT: DynPinMode = DynPinMode::Output(DynOutput::ReadablePushPull);
+/// Value-level variant of [`DynPinMode`] for readable opendrain output mode
+pub const DYN_RD_OPEN_DRAIN_OUTPUT: DynPinMode = DynPinMode::Output(DynOutput::ReadableOpenDrain);
+
+/// Value-level variant of [`DynPinMode`] for function select 1
+pub const DYN_ALT_FUNC_1: DynPinMode = DynPinMode::Alternate(DynAlternate::Sel1);
+/// Value-level variant of [`DynPinMode`] for function select 2
+pub const DYN_ALT_FUNC_2: DynPinMode = DynPinMode::Alternate(DynAlternate::Sel2);
+/// Value-level variant of [`DynPinMode`] for function select 3
+pub const DYN_ALT_FUNC_3: DynPinMode = DynPinMode::Alternate(DynAlternate::Sel3);
+
+//==================================================================================================
+//  DynGroup & DynPinId
+//==================================================================================================
+
+/// Value-level `enum` for pin groups
+#[derive(PartialEq, Eq, Clone, Copy)]
+pub enum DynGroup {
+    A,
+    B,
+    C,
+    D,
+    E,
+    F,
+    G,
+}
+
+/// Value-level `struct` representing pin IDs
+#[derive(PartialEq, Eq, Clone, Copy)]
+pub struct DynPinId {
+    pub group: DynGroup,
+    pub num: u8,
+}
+
+//==============================================================================
+//  DynRegisters
+//==============================================================================
+
+/// Provide a safe register interface for [`DynPin`]s
+///
+/// This `struct` takes ownership of a [`DynPinId`] and provides an API to
+/// access the corresponding regsiters.
+struct DynRegisters {
+    id: DynPinId,
+}
+
+// [`DynRegisters`] takes ownership of the [`DynPinId`], and [`DynPin`]
+// guarantees that each pin is a singleton, so this implementation is safe.
+unsafe impl RegisterInterface for DynRegisters {
+    #[inline]
+    fn id(&self) -> DynPinId {
+        self.id
+    }
+}
+
+impl DynRegisters {
+    /// Create a new instance of [`DynRegisters`]
+    ///
+    /// # Safety
+    ///
+    /// Users must never create two simultaneous instances of this `struct` with
+    /// the same [`DynPinId`]
+    #[inline]
+    unsafe fn new(id: DynPinId) -> Self {
+        DynRegisters { id }
+    }
+}
+
+//==============================================================================
+//  Error
+//==============================================================================
+
+/// GPIO error type
+///
+/// [`DynPin`]s are not tracked and verified at compile-time, so run-time
+/// operations are fallible. This `enum` represents the corresponding errors.
+#[derive(Debug)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
+pub struct InvalidPinTypeError(pub(crate) ());
+
+impl embedded_hal::digital::Error for InvalidPinTypeError {
+    fn kind(&self) -> embedded_hal::digital::ErrorKind {
+        ErrorKind::Other
+    }
+}
+
+//==================================================================================================
+//  DynPin
+//==================================================================================================
+
+/// A value-level pin, parameterized by [`DynPinId`] and [`DynPinMode`]
+///
+/// This type acts as a type-erased version of [`Pin`]. Every pin is represented
+/// by the same type, and pins are tracked and distinguished at run-time.
+pub struct DynPin {
+    regs: DynRegisters,
+    mode: DynPinMode,
+}
+
+impl DynPin {
+    /// Create a new [`DynPin`]
+    ///
+    /// # Safety
+    ///
+    /// Each [`DynPin`] must be a singleton. For a given [`DynPinId`], there
+    /// must be at most one corresponding [`DynPin`] in existence at any given
+    /// time.  Violating this requirement is `unsafe`.
+    #[inline]
+    unsafe fn new(id: DynPinId, mode: DynPinMode) -> Self {
+        DynPin {
+            regs: DynRegisters::new(id),
+            mode,
+        }
+    }
+
+    /// Return a copy of the pin ID
+    #[inline]
+    pub fn id(&self) -> DynPinId {
+        self.regs.id
+    }
+
+    /// Return a copy of the pin mode
+    #[inline]
+    pub fn mode(&self) -> DynPinMode {
+        self.mode
+    }
+
+    /// Convert the pin to the requested [`DynPinMode`]
+    #[inline]
+    pub fn into_mode(&mut self, mode: DynPinMode) {
+        // Only modify registers if we are actually changing pin mode
+        if mode != self.mode {
+            self.regs.change_mode(mode);
+            self.mode = mode;
+        }
+    }
+
+    #[inline]
+    pub fn into_funsel_1(&mut self) {
+        self.into_mode(DYN_ALT_FUNC_1);
+    }
+
+    #[inline]
+    pub fn into_funsel_2(&mut self) {
+        self.into_mode(DYN_ALT_FUNC_2);
+    }
+
+    #[inline]
+    pub fn into_funsel_3(&mut self) {
+        self.into_mode(DYN_ALT_FUNC_3);
+    }
+
+    /// Configure the pin to operate as a floating input
+    #[inline]
+    pub fn into_floating_input(&mut self) {
+        self.into_mode(DYN_FLOATING_INPUT);
+    }
+
+    /// Configure the pin to operate as a pulled down input
+    #[inline]
+    pub fn into_pull_down_input(&mut self) {
+        self.into_mode(DYN_PULL_DOWN_INPUT);
+    }
+
+    /// Configure the pin to operate as a pulled up input
+    #[inline]
+    pub fn into_pull_up_input(&mut self) {
+        self.into_mode(DYN_PULL_UP_INPUT);
+    }
+
+    /// Configure the pin to operate as a push-pull output
+    #[inline]
+    pub fn into_push_pull_output(&mut self) {
+        self.into_mode(DYN_PUSH_PULL_OUTPUT);
+    }
+
+    /// Configure the pin to operate as a push-pull output
+    #[inline]
+    pub fn into_open_drain_output(&mut self) {
+        self.into_mode(DYN_OPEN_DRAIN_OUTPUT);
+    }
+
+    /// Configure the pin to operate as a push-pull output
+    #[inline]
+    pub fn into_readable_push_pull_output(&mut self) {
+        self.into_mode(DYN_RD_PUSH_PULL_OUTPUT);
+    }
+
+    /// Configure the pin to operate as a push-pull output
+    #[inline]
+    pub fn into_readable_open_drain_output(&mut self) {
+        self.into_mode(DYN_RD_OPEN_DRAIN_OUTPUT);
+    }
+
+    common_reg_if_functions!();
+
+    /// See p.53 of the programmers guide for more information.
+    /// Possible delays in clock cycles:
+    ///  - Delay 1: 1
+    ///  - Delay 2: 2
+    ///  - Delay 1 + Delay 2: 3
+    #[inline]
+    pub fn delay(self, delay_1: bool, delay_2: bool) -> Result<Self, InvalidPinTypeError> {
+        match self.mode {
+            DynPinMode::Output(_) => {
+                self.regs.delay(delay_1, delay_2);
+                Ok(self)
+            }
+            _ => Err(InvalidPinTypeError(())),
+        }
+    }
+
+    /// See p.52 of the programmers guide for more information.
+    /// When configured for pulse mode, a given pin will set the non-default state for exactly
+    /// one clock cycle before returning to the configured default state
+    pub fn pulse_mode(
+        self,
+        enable: bool,
+        default_state: PinState,
+    ) -> Result<Self, InvalidPinTypeError> {
+        match self.mode {
+            DynPinMode::Output(_) => {
+                self.regs.pulse_mode(enable, default_state);
+                Ok(self)
+            }
+            _ => Err(InvalidPinTypeError(())),
+        }
+    }
+
+    /// See p.37 and p.38 of the programmers guide for more information.
+    #[inline]
+    pub fn filter_type(
+        self,
+        filter: FilterType,
+        clksel: FilterClkSel,
+    ) -> Result<Self, InvalidPinTypeError> {
+        match self.mode {
+            DynPinMode::Input(_) => {
+                self.regs.filter_type(filter, clksel);
+                Ok(self)
+            }
+            _ => Err(InvalidPinTypeError(())),
+        }
+    }
+
+    pub fn interrupt_edge(mut self, edge_type: InterruptEdge) -> Result<Self, InvalidPinTypeError> {
+        match self.mode {
+            DynPinMode::Input(_) | DynPinMode::Output(_) => {
+                self.regs.interrupt_edge(edge_type);
+                self.irq_enb();
+                Ok(self)
+            }
+            _ => Err(InvalidPinTypeError(())),
+        }
+    }
+
+    pub fn interrupt_level(
+        mut self,
+        level_type: InterruptLevel,
+    ) -> Result<Self, InvalidPinTypeError> {
+        match self.mode {
+            DynPinMode::Input(_) | DynPinMode::Output(_) => {
+                self.regs.interrupt_level(level_type);
+                self.irq_enb();
+                Ok(self)
+            }
+            _ => Err(InvalidPinTypeError(())),
+        }
+    }
+
+    #[inline]
+    fn _read(&self) -> Result<bool, InvalidPinTypeError> {
+        match self.mode {
+            DynPinMode::Input(_) | DYN_RD_OPEN_DRAIN_OUTPUT | DYN_RD_PUSH_PULL_OUTPUT => {
+                Ok(self.regs.read_pin())
+            }
+            _ => Err(InvalidPinTypeError(())),
+        }
+    }
+    #[inline]
+    fn _write(&mut self, bit: bool) -> Result<(), InvalidPinTypeError> {
+        match self.mode {
+            DynPinMode::Output(_) => {
+                self.regs.write_pin(bit);
+                Ok(())
+            }
+            _ => Err(InvalidPinTypeError(())),
+        }
+    }
+
+    #[inline]
+    fn _is_low(&self) -> Result<bool, InvalidPinTypeError> {
+        self._read().map(|v| !v)
+    }
+    #[inline]
+    fn _is_high(&self) -> Result<bool, InvalidPinTypeError> {
+        self._read()
+    }
+    #[inline]
+    fn _set_low(&mut self) -> Result<(), InvalidPinTypeError> {
+        self._write(false)
+    }
+    #[inline]
+    fn _set_high(&mut self) -> Result<(), InvalidPinTypeError> {
+        self._write(true)
+    }
+}
+
+//==============================================================================
+//  Convert between Pin and DynPin
+//==============================================================================
+
+impl<I, M> From<Pin<I, M>> for DynPin
+where
+    I: PinId,
+    M: PinMode,
+{
+    /// Erase the type-level information in a [`Pin`] and return a value-level
+    /// [`DynPin`]
+    #[inline]
+    fn from(_pin: Pin<I, M>) -> Self {
+        // The `Pin` is consumed, so it is safe to replace it with the
+        // corresponding `DynPin`
+        unsafe { DynPin::new(I::DYN, M::DYN) }
+    }
+}
+
+impl<I, M> TryFrom<DynPin> for Pin<I, M>
+where
+    I: PinId,
+    M: PinMode,
+{
+    type Error = InvalidPinTypeError;
+
+    /// Try to recreate a type-level [`Pin`] from a value-level [`DynPin`]
+    ///
+    /// There is no way for the compiler to know if the conversion will be
+    /// successful at compile-time. We must verify the conversion at run-time
+    /// or refuse to perform it.
+    #[inline]
+    fn try_from(pin: DynPin) -> Result<Self, Self::Error> {
+        if pin.regs.id == I::DYN && pin.mode == M::DYN {
+            // The `DynPin` is consumed, so it is safe to replace it with the
+            // corresponding `Pin`
+            Ok(unsafe { Self::new() })
+        } else {
+            Err(InvalidPinTypeError(()))
+        }
+    }
+}
+
+//==============================================================================
+// Embedded HAL v1 traits
+//==============================================================================
+
+impl ErrorType for DynPin {
+    type Error = InvalidPinTypeError;
+}
+
+impl OutputPin for DynPin {
+    #[inline]
+    fn set_high(&mut self) -> Result<(), Self::Error> {
+        self._set_high()
+    }
+    #[inline]
+    fn set_low(&mut self) -> Result<(), Self::Error> {
+        self._set_low()
+    }
+}
+
+impl InputPin for DynPin {
+    #[inline]
+    fn is_high(&mut self) -> Result<bool, Self::Error> {
+        self._is_high()
+    }
+    #[inline]
+    fn is_low(&mut self) -> Result<bool, Self::Error> {
+        self._is_low()
+    }
+}
+
+impl StatefulOutputPin for DynPin {
+    #[inline]
+    fn is_set_high(&mut self) -> Result<bool, Self::Error> {
+        self._is_high()
+    }
+    #[inline]
+    fn is_set_low(&mut self) -> Result<bool, Self::Error> {
+        self._is_low()
+    }
+}

va416xx-hal/src/gpio/mod.rs

@@ -0,0 +1,82 @@
+//! # API for the GPIO peripheral
+//!
+//! The implementation of this GPIO module is heavily based on the
+//! [ATSAMD HAL implementation](https://docs.rs/atsamd-hal/latest/atsamd_hal/gpio/index.html).
+//!
+//! This API provides two different submodules, [`mod@pins`] and [`dynpins`],
+//! representing two different ways to handle GPIO pins. The default, [`mod@pins`],
+//! is a type-level API that tracks the state of each pin at compile-time. The
+//! alternative, [`dynpins`] is a type-erased, value-level API that tracks the
+//! state of each pin at run-time.
+//!
+//! The type-level API is strongly preferred. By representing the state of each
+//! pin within the type system, the compiler can detect logic errors at
+//! compile-time. Furthermore, the type-level API has absolutely zero run-time
+//! cost.
+//!
+//! If needed, [`dynpins`] can be used to erase the type-level differences
+//! between pins. However, by doing so, pins must now be tracked at run-time,
+//! and each pin has a non-zero memory footprint.
+//!
+//! ## Examples
+//!
+//! - [Blinky example](https://egit.irs.uni-stuttgart.de/rust/va108xx-hal/src/branch/main/examples/blinky.rs)
+
+#[derive(Debug, PartialEq, Eq)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
+pub struct IsMaskedError(pub(crate) ());
+
+macro_rules! common_reg_if_functions {
+    () => {
+        paste::paste!(
+            #[inline]
+            pub fn datamask(&self) -> bool {
+                self.regs.datamask()
+            }
+
+            #[inline]
+            pub fn clear_datamask(self) -> Self {
+                self.regs.clear_datamask();
+                self
+            }
+
+            #[inline]
+            pub fn set_datamask(self) -> Self {
+                self.regs.set_datamask();
+                self
+            }
+
+            #[inline]
+            pub fn is_high_masked(&self) -> Result<bool, crate::gpio::IsMaskedError> {
+                self.regs.read_pin_masked()
+            }
+
+            #[inline]
+            pub fn is_low_masked(&self) -> Result<bool, crate::gpio::IsMaskedError> {
+                self.regs.read_pin_masked().map(|v| !v)
+            }
+
+            #[inline]
+            pub fn set_high_masked(&mut self) -> Result<(), crate::gpio::IsMaskedError> {
+                self.regs.write_pin_masked(true)
+            }
+
+            #[inline]
+            pub fn set_low_masked(&mut self) -> Result<(), crate::gpio::IsMaskedError> {
+                self.regs.write_pin_masked(false)
+            }
+
+            fn irq_enb(&mut self) {
+                self.regs.enable_irq();
+            }
+        );
+    };
+}
+
+pub mod pin;
+pub use pin::*;
+
+pub mod dynpin;
+pub use dynpin::*;
+
+mod reg;

va416xx-hal/src/gpio/pin.rs

@@ -0,0 +1,826 @@
+use core::{convert::Infallible, marker::PhantomData, mem::transmute};
+
+pub use crate::clock::FilterClkSel;
+use crate::Sealed;
+use embedded_hal::digital::{ErrorType, InputPin, OutputPin, StatefulOutputPin};
+use va416xx::{Porta, Portb, Portc, Portd, Porte, Portf, Portg};
+
+use super::{
+    reg::RegisterInterface, DynAlternate, DynGroup, DynInput, DynOutput, DynPinId, DynPinMode,
+};
+
+//==================================================================================================
+//  Errors and Definitions
+//==================================================================================================
+
+#[derive(Debug, PartialEq, Eq)]
+pub enum InterruptEdge {
+    HighToLow,
+    LowToHigh,
+    BothEdges,
+}
+
+#[derive(Debug, PartialEq, Eq)]
+pub enum InterruptLevel {
+    Low = 0,
+    High = 1,
+}
+
+#[derive(Debug, PartialEq, Eq)]
+pub enum PinState {
+    Low = 0,
+    High = 1,
+}
+
+//==================================================================================================
+// Input configuration
+//==================================================================================================
+
+/// Type-level enum for input configurations
+///
+/// The valid options are [`Floating`], [`PullDown`] and [`PullUp`].
+pub trait InputConfig: Sealed {
+    /// Corresponding [`DynInput`](super::DynInput)
+    const DYN: DynInput;
+}
+
+pub enum Floating {}
+pub enum PullDown {}
+pub enum PullUp {}
+
+impl InputConfig for Floating {
+    const DYN: DynInput = DynInput::Floating;
+}
+impl InputConfig for PullDown {
+    const DYN: DynInput = DynInput::PullDown;
+}
+impl InputConfig for PullUp {
+    const DYN: DynInput = DynInput::PullUp;
+}
+
+impl Sealed for Floating {}
+impl Sealed for PullDown {}
+impl Sealed for PullUp {}
+
+/// Type-level variant of [`PinMode`] for floating input mode
+pub type InputFloating = Input<Floating>;
+/// Type-level variant of [`PinMode`] for pull-down input mode
+pub type InputPullDown = Input<PullDown>;
+/// Type-level variant of [`PinMode`] for pull-up input mode
+pub type InputPullUp = Input<PullUp>;
+
+/// Type-level variant of [`PinMode`] for input modes
+///
+/// Type `C` is one of three input configurations: [`Floating`], [`PullDown`] or
+/// [`PullUp`]
+pub struct Input<C: InputConfig> {
+    cfg: PhantomData<C>,
+}
+
+impl<C: InputConfig> Sealed for Input<C> {}
+
+#[derive(Debug, PartialEq, Eq)]
+pub enum FilterType {
+    SystemClock = 0,
+    DirectInputWithSynchronization = 1,
+    FilterOneClockCycle = 2,
+    FilterTwoClockCycles = 3,
+    FilterThreeClockCycles = 4,
+    FilterFourClockCycles = 5,
+}
+
+//==================================================================================================
+// Output configuration
+//==================================================================================================
+
+pub trait OutputConfig: Sealed {
+    const DYN: DynOutput;
+}
+
+pub trait ReadableOutput: Sealed {}
+
+/// Type-level variant of [`OutputConfig`] for a push-pull configuration
+pub enum PushPull {}
+/// Type-level variant of [`OutputConfig`] for an open drain configuration
+pub enum OpenDrain {}
+
+/// Type-level variant of [`OutputConfig`] for a readable push-pull configuration
+pub enum ReadablePushPull {}
+/// Type-level variant of [`OutputConfig`] for a readable open-drain configuration
+pub enum ReadableOpenDrain {}
+
+impl Sealed for PushPull {}
+impl Sealed for OpenDrain {}
+impl Sealed for ReadableOpenDrain {}
+impl Sealed for ReadablePushPull {}
+impl ReadableOutput for ReadableOpenDrain {}
+impl ReadableOutput for ReadablePushPull {}
+
+impl OutputConfig for PushPull {
+    const DYN: DynOutput = DynOutput::PushPull;
+}
+impl OutputConfig for OpenDrain {
+    const DYN: DynOutput = DynOutput::OpenDrain;
+}
+impl OutputConfig for ReadablePushPull {
+    const DYN: DynOutput = DynOutput::ReadablePushPull;
+}
+impl OutputConfig for ReadableOpenDrain {
+    const DYN: DynOutput = DynOutput::ReadableOpenDrain;
+}
+
+/// Type-level variant of [`PinMode`] for output modes
+///
+/// Type `C` is one of four output configurations: [`PushPull`], [`OpenDrain`] or
+/// their respective readable versions
+pub struct Output<C: OutputConfig> {
+    cfg: PhantomData<C>,
+}
+
+impl<C: OutputConfig> Sealed for Output<C> {}
+
+/// Type-level variant of [`PinMode`] for push-pull output mode
+pub type PushPullOutput = Output<PushPull>;
+/// Type-level variant of [`PinMode`] for open drain output mode
+pub type OutputOpenDrain = Output<OpenDrain>;
+
+pub type OutputReadablePushPull = Output<ReadablePushPull>;
+pub type OutputReadableOpenDrain = Output<ReadableOpenDrain>;
+
+//==================================================================================================
+//  Alternate configurations
+//==================================================================================================
+
+/// Type-level enum for alternate peripheral function configurations
+pub trait AlternateConfig: Sealed {
+    const DYN: DynAlternate;
+}
+
+pub enum Funsel1 {}
+pub enum Funsel2 {}
+pub enum Funsel3 {}
+
+impl AlternateConfig for Funsel1 {
+    const DYN: DynAlternate = DynAlternate::Sel1;
+}
+impl AlternateConfig for Funsel2 {
+    const DYN: DynAlternate = DynAlternate::Sel2;
+}
+impl AlternateConfig for Funsel3 {
+    const DYN: DynAlternate = DynAlternate::Sel3;
+}
+
+impl Sealed for Funsel1 {}
+impl Sealed for Funsel2 {}
+impl Sealed for Funsel3 {}
+
+/// Type-level variant of [`PinMode`] for alternate peripheral functions
+///
+/// Type `C` is an [`AlternateConfig`]
+pub struct Alternate<C: AlternateConfig> {
+    cfg: PhantomData<C>,
+}
+
+impl<C: AlternateConfig> Sealed for Alternate<C> {}
+
+pub type AltFunc1 = Alternate<Funsel1>;
+pub type AltFunc2 = Alternate<Funsel2>;
+pub type AltFunc3 = Alternate<Funsel3>;
+
+/// Type alias for the [`PinMode`] at reset
+pub type Reset = InputFloating;
+
+//==================================================================================================
+//  Pin modes
+//==================================================================================================
+
+/// Type-level enum representing pin modes
+///
+/// The valid options are [`Input`], [`Output`] and [`Alternate`].
+pub trait PinMode: Sealed {
+    /// Corresponding [`DynPinMode`](super::DynPinMode)
+    const DYN: DynPinMode;
+}
+
+impl<C: InputConfig> PinMode for Input<C> {
+    const DYN: DynPinMode = DynPinMode::Input(C::DYN);
+}
+impl<C: OutputConfig> PinMode for Output<C> {
+    const DYN: DynPinMode = DynPinMode::Output(C::DYN);
+}
+impl<C: AlternateConfig> PinMode for Alternate<C> {
+    const DYN: DynPinMode = DynPinMode::Alternate(C::DYN);
+}
+
+//==================================================================================================
+//  Pin IDs
+//==================================================================================================
+
+/// Type-level enum for pin IDs
+pub trait PinId: Sealed {
+    /// Corresponding [`DynPinId`](super::DynPinId)
+    const DYN: DynPinId;
+}
+
+macro_rules! pin_id {
+    ($Group:ident, $Id:ident, $NUM:literal) => {
+        // Need paste macro to use ident in doc attribute
+        paste::paste! {
+            #[doc = "Pin ID representing pin " $Id]
+            pub enum $Id {}
+            impl Sealed for $Id {}
+            impl PinId for $Id {
+                const DYN: DynPinId = DynPinId {
+                    group: DynGroup::$Group,
+                    num: $NUM,
+                };
+            }
+        }
+    };
+}
+
+//==================================================================================================
+//  Pin
+//==================================================================================================
+
+/// A type-level GPIO pin, parameterized by [`PinId`] and [`PinMode`] types
+
+pub struct Pin<I: PinId, M: PinMode> {
+    pub(in crate::gpio) regs: Registers<I>,
+    mode: PhantomData<M>,
+}
+
+impl<I: PinId, M: PinMode> Pin<I, M> {
+    /// Create a new [`Pin`]
+    ///
+    /// # Safety
+    ///
+    /// Each [`Pin`] must be a singleton. For a given [`PinId`], there must be
+    /// at most one corresponding [`Pin`] in existence at any given time.
+    /// Violating this requirement is `unsafe`.
+    #[inline]
+    pub(crate) unsafe fn new() -> Pin<I, M> {
+        Pin {
+            regs: Registers::new(),
+            mode: PhantomData,
+        }
+    }
+
+    /// Convert the pin to the requested [`PinMode`]
+    #[inline]
+    pub fn into_mode<N: PinMode>(mut self) -> Pin<I, N> {
+        // Only modify registers if we are actually changing pin mode
+        // This check should compile away
+        if N::DYN != M::DYN {
+            self.regs.change_mode::<N>();
+        }
+        // Safe because we drop the existing Pin
+        unsafe { Pin::new() }
+    }
+
+    /// Configure the pin for function select 1. See Programmer Guide p.40 for the function table
+    #[inline]
+    pub fn into_funsel_1(self) -> Pin<I, AltFunc1> {
+        self.into_mode()
+    }
+
+    /// Configure the pin for function select 2. See Programmer Guide p.40 for the function table
+    #[inline]
+    pub fn into_funsel_2(self) -> Pin<I, AltFunc2> {
+        self.into_mode()
+    }
+
+    /// Configure the pin for function select 3. See Programmer Guide p.40 for the function table
+    #[inline]
+    pub fn into_funsel_3(self) -> Pin<I, AltFunc3> {
+        self.into_mode()
+    }
+
+    /// Configure the pin to operate as a floating input
+    #[inline]
+    pub fn into_floating_input(self) -> Pin<I, InputFloating> {
+        self.into_mode()
+    }
+
+    /// Configure the pin to operate as a pulled down input
+    #[inline]
+    pub fn into_pull_down_input(self) -> Pin<I, InputPullDown> {
+        self.into_mode()
+    }
+
+    /// Configure the pin to operate as a pulled up input
+    #[inline]
+    pub fn into_pull_up_input(self) -> Pin<I, InputPullUp> {
+        self.into_mode()
+    }
+
+    /// Configure the pin to operate as a push-pull output
+    #[inline]
+    pub fn into_push_pull_output(self) -> Pin<I, PushPullOutput> {
+        self.into_mode()
+    }
+
+    /// Configure the pin to operate as a readable push-pull output
+    #[inline]
+    pub fn into_readable_push_pull_output(self) -> Pin<I, OutputReadablePushPull> {
+        self.into_mode()
+    }
+
+    /// Configure the pin to operate as a readable open-drain output
+    #[inline]
+    pub fn into_readable_open_drain_output(self) -> Pin<I, OutputReadableOpenDrain> {
+        self.into_mode()
+    }
+
+    common_reg_if_functions!();
+
+    #[inline]
+    pub(crate) fn _set_high(&mut self) {
+        self.regs.write_pin(true)
+    }
+
+    #[inline]
+    pub(crate) fn _set_low(&mut self) {
+        self.regs.write_pin(false)
+    }
+
+    #[inline]
+    pub(crate) fn _is_low(&self) -> bool {
+        !self.regs.read_pin()
+    }
+
+    #[inline]
+    pub(crate) fn _is_high(&self) -> bool {
+        self.regs.read_pin()
+    }
+}
+
+//==============================================================================
+//  AnyPin
+//==============================================================================
+
+/// Type class for [`Pin`] types
+///
+/// This trait uses the [`AnyKind`] trait pattern to create a [type class] for
+/// [`Pin`] types. See the `AnyKind` documentation for more details on the
+/// pattern.
+///
+/// ## `v1` Compatibility
+///
+/// Normally, this trait would use `Is<Type = SpecificPin<Self>>` as a super
+/// trait. But doing so would restrict implementations to only the `v2` `Pin`
+/// type in this module. To aid in backwards compatibility, we want to implement
+/// `AnyPin` for the `v1` `Pin` type as well. This is possible for a few
+/// reasons. First, both structs are zero-sized, so there is no meaningful
+/// memory layout to begin with. And even if there were, the `v1` `Pin` type is
+/// a newtype wrapper around a `v2` `Pin`, and single-field structs are
+/// guaranteed to have the same layout as the field, even for `repr(Rust)`.
+///
+/// [`AnyKind`]: crate::typelevel#anykind-trait-pattern
+/// [type class]: crate::typelevel#type-classes
+pub trait AnyPin
+where
+    Self: Sealed,
+    Self: From<SpecificPin<Self>>,
+    Self: Into<SpecificPin<Self>>,
+    Self: AsRef<SpecificPin<Self>>,
+    Self: AsMut<SpecificPin<Self>>,
+{
+    /// [`PinId`] of the corresponding [`Pin`]
+    type Id: PinId;
+    /// [`PinMode`] of the corresponding [`Pin`]
+    type Mode: PinMode;
+}
+
+impl<I, M> Sealed for Pin<I, M>
+where
+    I: PinId,
+    M: PinMode,
+{
+}
+
+impl<I, M> AnyPin for Pin<I, M>
+where
+    I: PinId,
+    M: PinMode,
+{
+    type Id = I;
+    type Mode = M;
+}
+
+/// Type alias to recover the specific [`Pin`] type from an implementation of
+/// [`AnyPin`]
+///
+/// See the [`AnyKind`] documentation for more details on the pattern.
+///
+/// [`AnyKind`]: crate::typelevel#anykind-trait-pattern
+pub type SpecificPin<P> = Pin<<P as AnyPin>::Id, <P as AnyPin>::Mode>;
+
+impl<P: AnyPin> AsRef<P> for SpecificPin<P> {
+    #[inline]
+    fn as_ref(&self) -> &P {
+        // SAFETY: This is guaranteed to be safe, because P == SpecificPin<P>
+        // Transmuting between `v1` and `v2` `Pin` types is also safe, because
+        // both are zero-sized, and single-field, newtype structs are guaranteed
+        // to have the same layout as the field anyway, even for repr(Rust).
+        unsafe { transmute(self) }
+    }
+}
+
+impl<P: AnyPin> AsMut<P> for SpecificPin<P> {
+    #[inline]
+    fn as_mut(&mut self) -> &mut P {
+        // SAFETY: This is guaranteed to be safe, because P == SpecificPin<P>
+        // Transmuting between `v1` and `v2` `Pin` types is also safe, because
+        // both are zero-sized, and single-field, newtype structs are guaranteed
+        // to have the same layout as the field anyway, even for repr(Rust).
+        unsafe { transmute(self) }
+    }
+}
+
+//==================================================================================================
+//  Additional functionality
+//==================================================================================================
+
+impl<I: PinId, C: InputConfig> Pin<I, Input<C>> {
+    pub fn interrupt_edge(mut self, edge_type: InterruptEdge) -> Self {
+        self.regs.interrupt_edge(edge_type);
+        self.irq_enb();
+        self
+    }
+
+    pub fn interrupt_level(mut self, level_type: InterruptLevel) -> Self {
+        self.regs.interrupt_level(level_type);
+        self.irq_enb();
+        self
+    }
+}
+
+impl<I: PinId, C: OutputConfig> Pin<I, Output<C>> {
+    /// See p.53 of the programmers guide for more information.
+    /// Possible delays in clock cycles:
+    ///  - Delay 1: 1
+    ///  - Delay 2: 2
+    ///  - Delay 1 + Delay 2: 3
+    #[inline]
+    pub fn delay(self, delay_1: bool, delay_2: bool) -> Self {
+        self.regs.delay(delay_1, delay_2);
+        self
+    }
+
+    /// See p.52 of the programmers guide for more information.
+    /// When configured for pulse mode, a given pin will set the non-default state for exactly
+    /// one clock cycle before returning to the configured default state
+    pub fn pulse_mode(self, enable: bool, default_state: PinState) -> Self {
+        self.regs.pulse_mode(enable, default_state);
+        self
+    }
+
+    pub fn interrupt_edge(mut self, edge_type: InterruptEdge) -> Self {
+        self.regs.interrupt_edge(edge_type);
+        self.irq_enb();
+        self
+    }
+
+    pub fn interrupt_level(mut self, level_type: InterruptLevel) -> Self {
+        self.regs.interrupt_level(level_type);
+        self.irq_enb();
+        self
+    }
+}
+
+impl<I: PinId, C: InputConfig> Pin<I, Input<C>> {
+    /// See p.37 and p.38 of the programmers guide for more information.
+    #[inline]
+    pub fn filter_type(self, filter: FilterType, clksel: FilterClkSel) -> Self {
+        self.regs.filter_type(filter, clksel);
+        self
+    }
+}
+
+//==================================================================================================
+//  Embedded HAL traits
+//==================================================================================================
+
+impl<I, M> ErrorType for Pin<I, M>
+where
+    I: PinId,
+    M: PinMode,
+{
+    type Error = Infallible;
+}
+
+impl<I: PinId, C: OutputConfig> OutputPin for Pin<I, Output<C>> {
+    #[inline]
+    fn set_high(&mut self) -> Result<(), Self::Error> {
+        self._set_high();
+        Ok(())
+    }
+
+    #[inline]
+    fn set_low(&mut self) -> Result<(), Self::Error> {
+        self._set_low();
+        Ok(())
+    }
+}
+
+impl<I, C> InputPin for Pin<I, Input<C>>
+where
+    I: PinId,
+    C: InputConfig,
+{
+    #[inline]
+    fn is_high(&mut self) -> Result<bool, Self::Error> {
+        Ok(self._is_high())
+    }
+    #[inline]
+    fn is_low(&mut self) -> Result<bool, Self::Error> {
+        Ok(self._is_low())
+    }
+}
+
+impl<I, C> StatefulOutputPin for Pin<I, Output<C>>
+where
+    I: PinId,
+    C: OutputConfig + ReadableOutput,
+{
+    #[inline]
+    fn is_set_high(&mut self) -> Result<bool, Self::Error> {
+        Ok(self._is_high())
+    }
+    #[inline]
+    fn is_set_low(&mut self) -> Result<bool, Self::Error> {
+        Ok(self._is_low())
+    }
+}
+
+//==================================================================================================
+//  Registers
+//==================================================================================================
+
+/// Provide a safe register interface for [`Pin`]s
+///
+/// This `struct` takes ownership of a [`PinId`] and provides an API to
+/// access the corresponding registers.
+pub(in crate::gpio) struct Registers<I: PinId> {
+    id: PhantomData<I>,
+}
+
+// [`Registers`] takes ownership of the [`PinId`], and [`Pin`] guarantees that
+// each pin is a singleton, so this implementation is safe.
+unsafe impl<I: PinId> RegisterInterface for Registers<I> {
+    #[inline]
+    fn id(&self) -> DynPinId {
+        I::DYN
+    }
+}
+
+impl<I: PinId> Registers<I> {
+    /// Create a new instance of [`Registers`]
+    ///
+    /// # Safety
+    ///
+    /// Users must never create two simultaneous instances of this `struct` with
+    /// the same [`PinId`]
+    #[inline]
+    unsafe fn new() -> Self {
+        Registers { id: PhantomData }
+    }
+
+    /// Provide a type-level equivalent for the
+    /// [`RegisterInterface::change_mode`] method.
+    #[inline]
+    pub(in crate::gpio) fn change_mode<M: PinMode>(&mut self) {
+        RegisterInterface::change_mode(self, M::DYN);
+    }
+}
+
+//==================================================================================================
+//  Pin definitions
+//==================================================================================================
+
+macro_rules! pins {
+    (
+        $Port:ident, $PinsName:ident, $($Id:ident,)+,
+    ) => {
+        paste::paste!(
+            /// Collection of all the individual [`Pin`]s for a given port (PORTA or PORTB)
+            pub struct $PinsName {
+                iocfg: Option<va416xx::Ioconfig>,
+                port: $Port,
+                $(
+                    #[doc = "Pin " $Id]
+                    pub [<$Id:lower>]: Pin<$Id, Reset>,
+                )+
+            }
+
+            impl $PinsName {
+                /// Create a new struct containing all the Pins. Passing the IOCONFIG peripheral
+                /// is optional because it might be required to create pin definitions for both
+                /// ports.
+                #[inline]
+                pub fn new(
+                    syscfg: &mut va416xx::Sysconfig,
+                    iocfg: Option<va416xx::Ioconfig>,
+                    port: $Port
+                ) -> $PinsName {
+                    syscfg.peripheral_clk_enable().modify(|_, w| {
+                        w.[<$Port:lower>]().set_bit();
+                        w.ioconfig().set_bit()
+                    });
+                    $PinsName {
+                        iocfg,
+                        port,
+                        // Safe because we only create one `Pin` per `PinId`
+                        $(
+                            [<$Id:lower>]: unsafe { Pin::new() },
+                        )+
+                    }
+                }
+
+                /// Get the peripheral ID
+                /// Safety: Read-only register
+                pub fn get_perid() -> u32 {
+                    let port = unsafe { &(*$Port::ptr()) };
+                    port.perid().read().bits()
+                }
+
+                /// Consumes the Pins struct and returns the port definitions
+                pub fn release(self) -> (Option<va416xx::Ioconfig>, $Port) {
+                    (self.iocfg, self.port)
+                }
+            }
+        );
+    }
+}
+
+macro_rules! declare_pins {
+    (
+        $Group:ident, $PinsName:ident, $Port:ident, [$(($Id:ident, $NUM:literal),)+]
+    ) => {
+        pins!($Port, $PinsName, $($Id,)+,);
+        $(
+            pin_id!($Group, $Id, $NUM);
+        )+
+    }
+}
+
+declare_pins!(
+    A,
+    PinsA,
+    Porta,
+    [
+        (PA0, 0),
+        (PA1, 1),
+        (PA2, 2),
+        (PA3, 3),
+        (PA4, 4),
+        (PA5, 5),
+        (PA6, 6),
+        (PA7, 7),
+        (PA8, 8),
+        (PA9, 9),
+        (PA10, 10),
+        (PA11, 11),
+        (PA12, 12),
+        (PA13, 13),
+        (PA14, 14),
+        (PA15, 15),
+    ]
+);
+
+declare_pins!(
+    B,
+    PinsB,
+    Portb,
+    [
+        (PB0, 0),
+        (PB1, 1),
+        (PB2, 2),
+        (PB3, 3),
+        (PB4, 4),
+        (PB5, 5),
+        (PB6, 6),
+        (PB7, 7),
+        (PB8, 8),
+        (PB9, 9),
+        (PB10, 10),
+        (PB11, 11),
+        (PB12, 12),
+        (PB13, 13),
+        (PB14, 14),
+        (PB15, 15),
+    ]
+);
+
+declare_pins!(
+    C,
+    PinsC,
+    Portc,
+    [
+        (PC0, 0),
+        (PC1, 1),
+        (PC2, 2),
+        (PC3, 3),
+        (PC4, 4),
+        (PC5, 5),
+        (PC6, 6),
+        (PC7, 7),
+        (PC8, 8),
+        (PC9, 9),
+        (PC10, 10),
+        (PC11, 11),
+        (PC12, 12),
+        (PC13, 13),
+        (PC14, 14),
+        (PC15, 15),
+    ]
+);
+
+declare_pins!(
+    D,
+    PinsD,
+    Portd,
+    [
+        (PD0, 0),
+        (PD1, 1),
+        (PD2, 2),
+        (PD3, 3),
+        (PD4, 4),
+        (PD5, 5),
+        (PD6, 6),
+        (PD7, 7),
+        (PD8, 8),
+        (PD9, 9),
+        (PD10, 10),
+        (PD11, 11),
+        (PD12, 12),
+        (PD13, 13),
+        (PD14, 14),
+        (PD15, 15),
+    ]
+);
+
+declare_pins!(
+    E,
+    PinsE,
+    Porte,
+    [
+        (PE0, 0),
+        (PE1, 1),
+        (PE2, 2),
+        (PE3, 3),
+        (PE4, 4),
+        (PE5, 5),
+        (PE6, 6),
+        (PE7, 7),
+        (PE8, 8),
+        (PE9, 9),
+        (PE10, 10),
+        (PE11, 11),
+        (PE12, 12),
+        (PE13, 13),
+        (PE14, 14),
+        (PE15, 15),
+    ]
+);
+
+declare_pins!(
+    F,
+    PinsF,
+    Portf,
+    [
+        (PF0, 0),
+        (PF1, 1),
+        (PF2, 2),
+        (PF3, 3),
+        (PF4, 4),
+        (PF5, 5),
+        (PF6, 6),
+        (PF7, 7),
+        (PF8, 8),
+        (PF9, 9),
+        (PF10, 10),
+        (PF11, 11),
+        (PF12, 12),
+        (PF13, 13),
+        (PF14, 14),
+        (PF15, 15),
+    ]
+);
+
+declare_pins!(
+    G,
+    PinsG,
+    Portg,
+    [
+        (PG0, 0),
+        (PG1, 1),
+        (PG2, 2),
+        (PG3, 3),
+        (PG4, 4),
+        (PG5, 5),
+        (PG6, 6),
+        (PG7, 7),
+    ]
+);

va416xx-hal/src/gpio/reg.rs

@@ -0,0 +1,387 @@
+use crate::FunSel;
+
+use super::{
+    dynpin::{self, DynGroup, DynPinId},
+    DynPinMode, FilterClkSel, FilterType, InterruptEdge, InterruptLevel, IsMaskedError, PinState,
+};
+use va416xx::{ioconfig, porta, Ioconfig, Porta, Portb, Portc, Portd, Porte, Portf, Portg};
+
+/// Type definition to avoid confusion: These register blocks are identical
+type PortRegisterBlock = porta::RegisterBlock;
+
+//==================================================================================================
+//  ModeFields
+//==================================================================================================
+
+/// Collect all fields needed to set the [`PinMode`](super::PinMode)
+#[derive(Default)]
+struct ModeFields {
+    dir: bool,
+    opendrn: bool,
+    pull_en: bool,
+    /// true for pullup, false for pulldown
+    pull_dir: bool,
+    funsel: u8,
+    enb_input: bool,
+}
+
+impl From<DynPinMode> for ModeFields {
+    #[inline]
+    fn from(mode: DynPinMode) -> Self {
+        let mut fields = Self::default();
+        use DynPinMode::*;
+        match mode {
+            Input(config) => {
+                use dynpin::DynInput::*;
+                fields.dir = false;
+                fields.funsel = FunSel::Sel0 as u8;
+                match config {
+                    Floating => (),
+                    PullUp => {
+                        fields.pull_en = true;
+                        fields.pull_dir = true;
+                    }
+                    PullDown => {
+                        fields.pull_en = true;
+                    }
+                }
+            }
+            Output(config) => {
+                use dynpin::DynOutput::*;
+                fields.dir = true;
+                fields.funsel = FunSel::Sel0 as u8;
+                match config {
+                    PushPull => (),
+                    OpenDrain => {
+                        fields.opendrn = true;
+                    }
+                    ReadableOpenDrain => {
+                        fields.enb_input = true;
+                        fields.opendrn = true;
+                    }
+                    ReadablePushPull => {
+                        fields.enb_input = true;
+                    }
+                }
+            }
+            Alternate(config) => {
+                fields.funsel = config as u8;
+            }
+        }
+        fields
+    }
+}
+
+//==============================================================================
+//  RegisterInterface
+//==============================================================================
+
+pub type PortReg = ioconfig::Porta;
+
+/// Provide a safe register interface for pin objects
+///
+/// [`PORT`], like every PAC `struct`, is [`Send`] but not [`Sync`], because it
+/// points to a `RegisterBlock` of `VolatileCell`s. Unfortunately, such an
+/// interface is quite restrictive. Instead, it would be ideal if we could split
+/// the [`PORT`] into independent pins that are both [`Send`] and [`Sync`].
+///
+/// [`PORT`] is a single, zero-sized marker `struct` that provides access to
+/// every [`PORT`] register. Instead, we would like to create zero-sized marker
+/// `struct`s for every pin, where each pin is only allowed to control its own
+/// registers. Furthermore, each pin `struct` should be a singleton, so that
+/// exclusive access to the `struct` also guarantees exclusive access to the
+/// corresponding registers. Finally, the pin `struct`s should not have any
+/// interior mutability. Together, these requirements would allow the pin
+/// `struct`s to be both [`Send`] and [`Sync`].
+///
+/// This trait creates a safe API for accomplishing these goals. Implementers
+/// supply a pin ID through the [`id`] function. The remaining functions provide
+/// a safe API for accessing the registers associated with that pin ID. Any
+/// modification of the registers requires `&mut self`, which destroys interior
+/// mutability.
+///
+/// # Safety
+///
+/// Users should only implement the [`id`] function. No default function
+/// implementations should be overridden. The implementing type must also have
+/// "control" over the corresponding pin ID, i.e. it must guarantee that a each
+/// pin ID is a singleton.
+///
+/// [`id`]: Self::id
+pub(super) unsafe trait RegisterInterface {
+    /// Provide a [`DynPinId`] identifying the set of registers controlled by
+    /// this type.
+    fn id(&self) -> DynPinId;
+
+    const PORTA: *const PortRegisterBlock = Porta::ptr();
+    const PORTB: *const PortRegisterBlock = Portb::ptr();
+    const PORTC: *const PortRegisterBlock = Portc::ptr();
+    const PORTD: *const PortRegisterBlock = Portd::ptr();
+    const PORTE: *const PortRegisterBlock = Porte::ptr();
+    const PORTF: *const PortRegisterBlock = Portf::ptr();
+    const PORTG: *const PortRegisterBlock = Portg::ptr();
+
+    /// Change the pin mode
+    #[inline]
+    fn change_mode(&mut self, mode: DynPinMode) {
+        let ModeFields {
+            dir,
+            funsel,
+            opendrn,
+            pull_dir,
+            pull_en,
+            enb_input,
+        } = mode.into();
+        let (portreg, iocfg) = (self.port_reg(), self.iocfg_port());
+        iocfg.write(|w| {
+            w.opendrn().bit(opendrn);
+            w.pen().bit(pull_en);
+            w.plevel().bit(pull_dir);
+            w.iewo().bit(enb_input);
+            unsafe { w.funsel().bits(funsel) }
+        });
+        let mask = self.mask_32();
+        unsafe {
+            if dir {
+                portreg.dir().modify(|r, w| w.bits(r.bits() | mask));
+                // Clear output
+                portreg.clrout().write(|w| w.bits(mask));
+            } else {
+                portreg.dir().modify(|r, w| w.bits(r.bits() & !mask));
+            }
+        }
+    }
+
+    #[inline]
+    fn port_reg(&self) -> &PortRegisterBlock {
+        match self.id().group {
+            DynGroup::A => unsafe { &(*Self::PORTA) },
+            DynGroup::B => unsafe { &(*Self::PORTB) },
+            DynGroup::C => unsafe { &(*Self::PORTC) },
+            DynGroup::D => unsafe { &(*Self::PORTD) },
+            DynGroup::E => unsafe { &(*Self::PORTE) },
+            DynGroup::F => unsafe { &(*Self::PORTF) },
+            DynGroup::G => unsafe { &(*Self::PORTG) },
+        }
+    }
+
+    fn iocfg_port(&self) -> &PortReg {
+        let ioconfig = unsafe { Ioconfig::ptr().as_ref().unwrap() };
+        match self.id().group {
+            DynGroup::A => ioconfig.porta(self.id().num as usize),
+            DynGroup::B => ioconfig.portb0(self.id().num as usize),
+            DynGroup::C => ioconfig.portc0(self.id().num as usize),
+            DynGroup::D => ioconfig.portd0(self.id().num as usize),
+            DynGroup::E => ioconfig.porte0(self.id().num as usize),
+            DynGroup::F => ioconfig.portf0(self.id().num as usize),
+            DynGroup::G => ioconfig.portg0(self.id().num as usize),
+        }
+    }
+
+    #[inline]
+    fn mask_32(&self) -> u32 {
+        1 << self.id().num
+    }
+
+    #[inline]
+    fn enable_irq(&self) {
+        self.port_reg()
+            .irq_enb()
+            .modify(|r, w| unsafe { w.bits(r.bits() | self.mask_32()) });
+    }
+
+    #[inline]
+    /// Read the logic level of an output pin
+    fn read_pin(&self) -> bool {
+        let portreg = self.port_reg();
+        ((portreg.datainraw().read().bits() >> self.id().num) & 0x01) == 1
+    }
+
+    // Get DATAMASK bit for this particular pin
+    #[inline(always)]
+    fn datamask(&self) -> bool {
+        let portreg = self.port_reg();
+        (portreg.datamask().read().bits() >> self.id().num) == 1
+    }
+
+    /// Read a pin but use the masked version but check whether the datamask for the pin is
+    /// cleared as well
+    #[inline(always)]
+    fn read_pin_masked(&self) -> Result<bool, IsMaskedError> {
+        if !self.datamask() {
+            Err(IsMaskedError(()))
+        } else {
+            Ok(((self.port_reg().datain().read().bits() >> self.id().num) & 0x01) == 1)
+        }
+    }
+
+    /// Write the logic level of an output pin
+    #[inline(always)]
+    fn write_pin(&mut self, bit: bool) {
+        // Safety: SETOUT is a "mask" register, and we only write the bit for
+        // this pin ID
+        unsafe {
+            if bit {
+                self.port_reg().setout().write(|w| w.bits(self.mask_32()));
+            } else {
+                self.port_reg().clrout().write(|w| w.bits(self.mask_32()));
+            }
+        }
+    }
+
+    /// Write the logic level of an output pin but check whether the datamask for the pin is
+    /// cleared as well
+    #[inline]
+    fn write_pin_masked(&mut self, bit: bool) -> Result<(), IsMaskedError> {
+        if !self.datamask() {
+            Err(IsMaskedError(()))
+        } else {
+            // Safety: SETOUT is a "mask" register, and we only write the bit for
+            // this pin ID
+            unsafe {
+                if bit {
+                    self.port_reg().setout().write(|w| w.bits(self.mask_32()));
+                } else {
+                    self.port_reg().clrout().write(|w| w.bits(self.mask_32()));
+                }
+                Ok(())
+            }
+        }
+    }
+
+    /// Only useful for interrupt pins. Configure whether to use edges or level as interrupt soure
+    /// When using edge mode, it is possible to generate interrupts on both edges as well
+    #[inline]
+    fn interrupt_edge(&mut self, edge_type: InterruptEdge) {
+        unsafe {
+            self.port_reg()
+                .irq_sen()
+                .modify(|r, w| w.bits(r.bits() & !self.mask_32()));
+            match edge_type {
+                InterruptEdge::HighToLow => {
+                    self.port_reg()
+                        .irq_evt()
+                        .modify(|r, w| w.bits(r.bits() & !self.mask_32()));
+                }
+                InterruptEdge::LowToHigh => {
+                    self.port_reg()
+                        .irq_evt()
+                        .modify(|r, w| w.bits(r.bits() | self.mask_32()));
+                }
+                InterruptEdge::BothEdges => {
+                    self.port_reg()
+                        .irq_edge()
+                        .modify(|r, w| w.bits(r.bits() | self.mask_32()));
+                }
+            }
+        }
+    }
+
+    /// Configure which edge or level type triggers an interrupt
+    #[inline]
+    fn interrupt_level(&mut self, level: InterruptLevel) {
+        unsafe {
+            self.port_reg()
+                .irq_sen()
+                .modify(|r, w| w.bits(r.bits() | self.mask_32()));
+            if level == InterruptLevel::Low {
+                self.port_reg()
+                    .irq_evt()
+                    .modify(|r, w| w.bits(r.bits() & !self.mask_32()));
+            } else {
+                self.port_reg()
+                    .irq_evt()
+                    .modify(|r, w| w.bits(r.bits() | self.mask_32()));
+            }
+        }
+    }
+
+    /// Only useful for input pins
+    #[inline]
+    fn filter_type(&self, filter: FilterType, clksel: FilterClkSel) {
+        self.iocfg_port().modify(|_, w| {
+            // Safety: Only write to register for this Pin ID
+            unsafe {
+                w.flttype().bits(filter as u8);
+                w.fltclk().bits(clksel as u8)
+            }
+        });
+    }
+
+    /// Set DATAMASK bit for this particular pin. 1 is the default
+    /// state of the bit and allows access of the corresponding bit
+    #[inline(always)]
+    fn set_datamask(&self) {
+        let portreg = self.port_reg();
+        unsafe {
+            portreg
+                .datamask()
+                .modify(|r, w| w.bits(r.bits() | self.mask_32()))
+        }
+    }
+
+    /// Clear DATAMASK bit for this particular pin. This prevents access
+    /// of the corresponding bit for output and input operations
+    #[inline(always)]
+    fn clear_datamask(&self) {
+        let portreg = self.port_reg();
+        unsafe {
+            portreg
+                .datamask()
+                .modify(|r, w| w.bits(r.bits() & !self.mask_32()))
+        }
+    }
+
+    /// Only useful for output pins
+    /// See p.52 of the programmers guide for more information.
+    /// When configured for pulse mode, a given pin will set the non-default state for exactly
+    /// one clock cycle before returning to the configured default state
+    fn pulse_mode(&self, enable: bool, default_state: PinState) {
+        let portreg = self.port_reg();
+        unsafe {
+            if enable {
+                portreg
+                    .pulse()
+                    .modify(|r, w| w.bits(r.bits() | self.mask_32()));
+            } else {
+                portreg
+                    .pulse()
+                    .modify(|r, w| w.bits(r.bits() & !self.mask_32()));
+            }
+            if default_state == PinState::Low {
+                portreg
+                    .pulsebase()
+                    .modify(|r, w| w.bits(r.bits() & !self.mask_32()));
+            } else {
+                portreg
+                    .pulsebase()
+                    .modify(|r, w| w.bits(r.bits() | self.mask_32()));
+            }
+        }
+    }
+
+    /// Only useful for output pins
+    fn delay(&self, delay_1: bool, delay_2: bool) {
+        let portreg = self.port_reg();
+        unsafe {
+            if delay_1 {
+                portreg
+                    .delay1()
+                    .modify(|r, w| w.bits(r.bits() | self.mask_32()));
+            } else {
+                portreg
+                    .delay1()
+                    .modify(|r, w| w.bits(r.bits() & !self.mask_32()));
+            }
+            if delay_2 {
+                portreg
+                    .delay2()
+                    .modify(|r, w| w.bits(r.bits() | self.mask_32()));
+            } else {
+                portreg
+                    .delay2()
+                    .modify(|r, w| w.bits(r.bits() & !self.mask_32()));
+            }
+        }
+    }
+}

va416xx-hal/src/lib.rs

@@ -2,6 +2,45 @@
 
 pub use va416xx;
 pub use va416xx as pac;
+pub mod prelude;
 
 pub mod clock;
+pub mod gpio;
 pub mod time;
+pub mod typelevel;
+
+#[derive(Debug, Eq, Copy, Clone, PartialEq)]
+pub enum FunSel {
+    Sel0 = 0b00,
+    Sel1 = 0b01,
+    Sel2 = 0b10,
+    Sel3 = 0b11,
+}
+
+/// Generic IRQ config which can be used to specify whether the HAL driver will
+/// use the IRQSEL register to route an interrupt, and whether the IRQ will be unmasked in the
+/// Cortex-M0 NVIC. Both are generally necessary for IRQs to work, but the user might perform
+/// this steps themselves
+#[derive(Debug, PartialEq, Eq, Clone, Copy)]
+pub struct IrqCfg {
+    /// Interrupt target vector. Should always be set, might be required for disabling IRQs
+    pub irq: pac::Interrupt,
+    /// Specfiy whether IRQ should be routed to an IRQ vector using the IRQSEL peripheral
+    pub route: bool,
+    /// Specify whether the IRQ is unmasked in the Cortex-M NVIC
+    pub enable: bool,
+}
+
+impl IrqCfg {
+    pub fn new(irq: pac::Interrupt, route: bool, enable: bool) -> Self {
+        IrqCfg { irq, route, enable }
+    }
+}
+
+mod private {
+    /// Super trait used to mark traits with an exhaustive set of
+    /// implementations
+    pub trait Sealed {}
+}
+
+pub(crate) use private::Sealed;

va416xx-hal/src/prelude.rs

@@ -0,0 +1 @@
+

va416xx-hal/src/typelevel.rs

@@ -0,0 +1,155 @@
+//! Module supporting type-level programming
+//!
+//! This module is identical to the
+//! [atsamd typelevel](https://docs.rs/atsamd-hal/latest/atsamd_hal/typelevel/index.html).
+
+use core::ops::{Add, Sub};
+
+use typenum::{Add1, Bit, Sub1, UInt, Unsigned, B1, U0};
+
+mod private {
+    /// Super trait used to mark traits with an exhaustive set of
+    /// implementations
+    pub trait Sealed {}
+
+    impl Sealed for u8 {}
+    impl Sealed for i8 {}
+    impl Sealed for u16 {}
+    impl Sealed for i16 {}
+    impl Sealed for u32 {}
+    impl Sealed for i32 {}
+    impl Sealed for f32 {}
+
+    /// Mapping from an instance of a countable type to its successor
+    pub trait Increment {
+        /// Successor type of `Self`
+        type Inc;
+        /// Consume an instance of `Self` and return its successor
+        fn inc(self) -> Self::Inc;
+    }
+
+    /// Mapping from an instance of a countable type to its predecessor
+    pub trait Decrement {
+        /// Predecessor type of `Self`
+        type Dec;
+        /// Consume an instance of `Self` and return its predecessor
+        fn dec(self) -> Self::Dec;
+    }
+}
+
+pub(crate) use private::Decrement as PrivateDecrement;
+pub(crate) use private::Increment as PrivateIncrement;
+pub(crate) use private::Sealed;
+
+/// Type-level version of the [`None`] variant
+#[derive(Default)]
+pub struct NoneT;
+
+impl Sealed for NoneT {}
+
+//==============================================================================
+// Is
+//==============================================================================
+
+/// Marker trait for type identity
+///
+/// This trait is used as part of the [`AnyKind`] trait pattern. It represents
+/// the concept of type identity, because all implementors have
+/// `<Self as Is>::Type == Self`. When used as a trait bound with a specific
+/// type, it guarantees that the corresponding type parameter is exactly the
+/// specific type. Stated differently, it guarantees that `T == Specific` in
+/// the following example.
+///
+/// ```
+/// where T: Is<Type = Specific>
+/// ```
+///
+/// Moreover, the super traits guarantee that any instance of or reference to a
+/// type `T` can be converted into the `Specific` type.
+///
+/// ```
+/// fn example<T>(mut any: T)
+/// where
+///     T: Is<Type = Specific>,
+/// {
+///     let specific_mut: &mut Specific = any.as_mut();
+///     let specific_ref: &Specific = any.as_ref();
+///     let specific: Specific = any.into();
+/// }
+/// ```
+///
+/// [`AnyKind`]: #anykind-trait-pattern
+pub trait Is
+where
+    Self: Sealed,
+    Self: From<IsType<Self>>,
+    Self: Into<IsType<Self>>,
+    Self: AsRef<IsType<Self>>,
+    Self: AsMut<IsType<Self>>,
+{
+    type Type;
+}
+
+/// Type alias for [`Is::Type`]
+pub type IsType<T> = <T as Is>::Type;
+
+impl<T> Is for T
+where
+    T: Sealed + AsRef<T> + AsMut<T>,
+{
+    type Type = T;
+}
+
+//==============================================================================
+// Counting
+//==============================================================================
+
+/// Implement `Sealed` for [`U0`]
+impl Sealed for U0 {}
+
+/// Implement `Sealed` for all type-level, [`Unsigned`] integers *except* [`U0`]
+impl<U: Unsigned, B: Bit> Sealed for UInt<U, B> {}
+
+/// Trait mapping each countable type to its successor
+///
+/// This trait maps each countable type to its corresponding successor type. The
+/// actual implementation of this trait is contained within `PrivateIncrement`.
+/// Access to `PrivateIncrement` is restricted, so that safe HAL APIs can be
+/// built with it.
+pub trait Increment: PrivateIncrement {}
+
+impl<T: PrivateIncrement> Increment for T {}
+
+/// Trait mapping each countable type to its predecessor
+///
+/// This trait maps each countable type to its corresponding predecessor type.
+/// The actual implementation of this trait is contained within
+/// `PrivateDecrement`. Access to `PrivateDecrement` is restricted, so that safe
+/// HAL APIs can be built with it.
+pub trait Decrement: PrivateDecrement {}
+
+impl<T: PrivateDecrement> Decrement for T {}
+
+impl<N> PrivateIncrement for N
+where
+    N: Unsigned + Add<B1>,
+    Add1<N>: Unsigned,
+{
+    type Inc = Add1<N>;
+    #[inline]
+    fn inc(self) -> Self::Inc {
+        Self::Inc::default()
+    }
+}
+
+impl<N> PrivateDecrement for N
+where
+    N: Unsigned + Sub<B1>,
+    Sub1<N>: Unsigned,
+{
+    type Dec = Sub1<N>;
+    #[inline]
+    fn dec(self) -> Self::Dec {
+        Self::Dec::default()
+    }
+}

va416xx/src/porta.rs

@@ -1,3 +1,6 @@
+// Manually inserted.
+#![allow(clippy::identity_op)]
+
 #[repr(C)]
 #[doc = "Register block"]
 pub struct RegisterBlock {

vorago-peb1/examples/blinky.rs

@@ -3,12 +3,9 @@
 #![no_std]
 
 use cortex_m_rt::entry;
+use embedded_hal::digital::v2::{OutputPin, ToggleableOutputPin};
 use panic_halt as _;
-use va416xx_hal::{
-    pac,
-    gpio::PinsG
-};
-use embedded_hal::digital::v2::{ToggleableOutputPin, OutputPin};
+use va416xx_hal::{gpio::PinsG, pac};
 
 // Mask for the LED
 const LED_PG5: u32 = 1 << 5;
@@ -54,7 +51,7 @@ fn main() -> ! {
                 led.set_low().ok();
                 cortex_m::asm::delay(5_000_000);
                 led.set_high().ok();
-            };
+            }
             loop {
                 led.toggle().ok();
                 cortex_m::asm::delay(25_000_000);

vscode/extensions.json

@@ -0,0 +1,12 @@
+{
+	// See https://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
+	// Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
+	// List of extensions which should be recommended for users of this workspace.
+	"recommendations": [
+		"rust-lang.rust",
+		"marus25.cortex-debug"
+		// "probe-rs.probe-rs-debugger"
+	],
+	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
+	"unwantedRecommendations": []
+}

vscode/launch.json

@@ -15,11 +15,11 @@
             "gdbTarget": "localhost:2331",
             "cwd": "${workspaceRoot}",
             "device": "Cortex-M4",
-            "svdFile": "${workspaceFolder}/va416xx/svd/va416xx-base.svd",
-            "preLaunchTask": "rust: cargo build led blinky pac",
+            "svdFile": "${workspaceFolder}/va416xx/svd/va416xx.svd.patched",
+            "preLaunchTask": "blinky-pac-example",
             "executable": "${workspaceFolder}/target/thumbv7em-none-eabihf/debug/examples/blinky-pac",
             "interface": "swd",
-            "runToMain": true,
+            "runToEntryPoint": "main",
         },
         {
             "type": "cortex-debug",
@@ -29,11 +29,11 @@
             "gdbTarget": "localhost:2331",
             "cwd": "${workspaceRoot}",
             "device": "Cortex-M4",
-            "svdFile": "${workspaceFolder}/va416xx/svd/va416xx-base.svd",
-            "preLaunchTask": "rust: cargo build led blinky",
+            "svdFile": "${workspaceFolder}/va416xx/svd/va416xx.svd.patched",
+            "preLaunchTask": "blinky-example",
             "executable": "${workspaceFolder}/target/thumbv7em-none-eabihf/debug/examples/blinky",
             "interface": "swd",
-            "runToMain": true,
+            "runToEntryPoint": "main",
         },
         {
             "type": "cortex-debug",
@@ -43,11 +43,11 @@
             "gdbTarget": "localhost:2331",
             "cwd": "${workspaceRoot}",
             "device": "Cortex-M4",
-            "svdFile": "${workspaceFolder}/va416xx/svd/va416xx-base.svd",
-            "preLaunchTask": "rust: cargo build rtt",
+            "svdFile": "${workspaceFolder}/va416xx/svd/va416xx.svd.patched",
+            "preLaunchTask": "rtt-log-example",
             "executable": "${workspaceFolder}/target/thumbv7em-none-eabihf/debug/examples/rtt-log",
             "interface": "swd",
-            "runToMain": true,
+            "runToEntryPoint": "main",
         },
     ]
 }

vscode/tasks.json

@@ -4,11 +4,15 @@
     "version": "2.0.0",
     "tasks": [
         {
-            "label": "rust: cargo build led blinky pac",
+            "label": "blinky-pac-example",
             "type": "shell",
             "command": "~/.cargo/bin/cargo", // note: full path to the cargo
             "args": [
-                "build", "-p", "va416xx-hal", "--example", "blinky-pac"
+                "build",
+                "-p",
+                "va416xx-hal",
+                "--example",
+                "blinky-pac"
             ],
             "group": {
                 "kind": "build",
@@ -16,11 +20,15 @@
             }
         },
         {
-            "label": "rust: cargo build rtt",
+            "label": "rtt-log-example",
             "type": "shell",
             "command": "~/.cargo/bin/cargo", // note: full path to the cargo
             "args": [
-                "build", "-p", "va416xx-hal", "--example", "rtt-log"
+                "build",
+                "-p",
+                "va416xx-hal",
+                "--example",
+                "rtt-log"
             ],
             "group": {
                 "kind": "build",
@@ -28,11 +36,15 @@
             }
         },
         {
-            "label": "rust: cargo build led blinky",
+            "label": "blinky-example",
             "type": "shell",
             "command": "~/.cargo/bin/cargo", // note: full path to the cargo
             "args": [
-                "build", "-p", "vorago-peb1", "--example", "blinky"
+                "build",
+                "-p",
+                "va416xx-hal",
+                "--example",
+                "blinky"
             ],
             "group": {
                 "kind": "build",