New VA108xx Rust workspace structure + dependency updates

- The workspace is now a monorepo without submodules. The HAL, PAC and BSP
  are integrated directly
- Update all dependencies: embedded-hal v1 and RTIC v2

defmt-testapp/.cargo/config.toml

@@ -0,0 +1,48 @@
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+# uncomment ONE of these three option to make `cargo run` start a GDB session
+# which option to pick depends on your system
+# runner = "arm-none-eabi-gdb -q -x openocd.gdb"
+# runner = "gdb-multiarch -q -x openocd.gdb"
+# runner = "gdb -q -x openocd.gdb"
+runner = "gdb-multiarch -q -x jlink.gdb"
+
+# Probe-rs is currently problematic: https://github.com/probe-rs/probe-rs/issues/2567
+# runner = "probe-rs run --chip VA108xx --chip-description-path ./scripts/VA108xx_Series.yaml"
+# runner = ["probe-rs", "run", "--chip", "$CHIP", "--log-format", "{L} {s}"]
+
+rustflags = [
+  # This is needed if your flash or ram addresses are not aligned to 0x10000 in memory.x
+  # See https://github.com/rust-embedded/cortex-m-quickstart/pull/95
+  "-C", "link-arg=--nmagic",
+
+  # LLD (shipped with the Rust toolchain) is used as the default linker
+  "-C", "link-arg=-Tlink.x",
+
+  # knurling-rs tooling. If you want to use flip-link, ensure it is installed first.
+  "-C", "linker=flip-link",
+  # Unfortunately, defmt is clunky to use without probe-rs..
+  "-C", "link-arg=-Tdefmt.x",
+
+  # Can be useful for debugging.
+  "-Clink-args=-Map=app.map"
+
+]
+
+[build]
+# Pick ONE of these compilation targets
+target = "thumbv6m-none-eabi"        # Cortex-M0 and Cortex-M0+
+# target = "thumbv7m-none-eabi"        # Cortex-M3
+# target = "thumbv7em-none-eabi"       # Cortex-M4 and Cortex-M7 (no FPU)
+# target = "thumbv7em-none-eabihf"     # Cortex-M4F and Cortex-M7F (with FPU)
+# target = "thumbv8m.base-none-eabi"   # Cortex-M23
+# target = "thumbv8m.main-none-eabi"   # Cortex-M33 (no FPU)
+# target = "thumbv8m.main-none-eabihf" # Cortex-M33 (with FPU)
+
+[alias]
+re = "run --example"
+rb = "run --bin"
+rrb = "run --release --bin"
+ut = "test --target x86_64-unknown-linux-gnu"
+
+[env]
+DEFMT_LOG = "info"

defmt-testapp/.gitignore

@@ -0,0 +1 @@
+/target

defmt-testapp/Cargo.toml

@@ -0,0 +1,36 @@
+[package]
+name = "defmt-testapp"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+cortex-m = {version = "0.7", features = ["critical-section-single-core"]}
+panic-rtt-target = "0.1"
+cortex-m-rt = "0.7"
+rtt-target = "0.5"
+rtic-sync = { version = "1.3", features = ["defmt-03"] }
+embedded-hal = "1"
+embedded-hal-nb = "1"
+embedded-io = "0.6"
+cortex-m-semihosting = "0.5.0"
+# Tricky without probe-rs.
+defmt = "0.3"
+defmt-brtt = { version = "0.1", default-features = false, features = ["rtt"] }
+panic-probe = { version = "0.3", features = ["print-defmt"] }
+
+[dependencies.rtic]
+version = "2"
+features = ["thumbv6-backend"]
+
+[dependencies.rtic-monotonics]
+version = "1"
+features = ["cortex-m-systick"]
+
+[dependencies.va108xx-hal]
+version = "0.6"
+path = "../va108xx-hal"
+features = ["rt", "defmt"]
+
+[dependencies.va108xx]
+version = "0.3"
+path = "../va108xx"

defmt-testapp/README.md

@@ -0,0 +1,9 @@
+defmt Testapp
+======
+
+`defmt` is clunky to use without probe-rs and requires special configuration inside the
+`.cargo/config.toml` file.
+
+`probe-rs` is currently problematic for usage with the VA108xx , so it is not the default tool
+recommended and used for the whole workspace. This project contains an isolated, `defmt` compatible
+configuration for testing with `defmt` (and `probe-rs`).

defmt-testapp/src/lib.rs

@@ -0,0 +1,53 @@
+#![no_main]
+#![no_std]
+
+use cortex_m_semihosting::debug;
+
+use defmt_brtt as _; // global logger
+
+use va108xx_hal as _; // memory layout
+
+use panic_probe as _;
+
+// same panicking *behavior* as `panic-probe` but doesn't print a panic message
+// this prevents the panic message being printed *twice* when `defmt::panic` is invoked
+// #[defmt::panic_handler]
+/*
+fn panic() -> ! {
+    cortex_m::asm::udf()
+}
+*/
+
+/// Terminates the application and makes a semihosting-capable debug tool exit
+/// with status code 0.
+pub fn exit() -> ! {
+    loop {
+        debug::exit(debug::EXIT_SUCCESS);
+    }
+}
+
+/// Hardfault handler.
+///
+/// Terminates the application and makes a semihosting-capable debug tool exit
+/// with an error. This seems better than the default, which is to spin in a
+/// loop.
+#[cortex_m_rt::exception]
+unsafe fn HardFault(_frame: &cortex_m_rt::ExceptionFrame) -> ! {
+    loop {
+        debug::exit(debug::EXIT_FAILURE);
+    }
+}
+
+// defmt-test 0.3.0 has the limitation that this `#[tests]` attribute can only be used
+// once within a crate. the module can be in any file but there can only be at most
+// one `#[tests]` module in this library crate
+#[cfg(test)]
+#[defmt_test::tests]
+mod unit_tests {
+    use defmt::assert;
+
+    #[test]
+    fn it_works() {
+        assert!(true)
+    }
+}

defmt-testapp/src/main.rs

@@ -0,0 +1,29 @@
+//! Empty RTIC project template
+#![no_main]
+#![no_std]
+
+use defmt_testapp as _;
+
+#[rtic::app(device = pac)]
+mod app {
+    use va108xx_hal::pac;
+
+    #[local]
+    struct Local {}
+
+    #[shared]
+    struct Shared {}
+
+    #[init]
+    fn init(_ctx: init::Context) -> (Shared, Local) {
+        defmt::println!("-- Vorago RTIC template --");
+        (Shared {}, Local {})
+    }
+
+    // `shared` cannot be accessed from this context
+    #[idle]
+    fn idle(_cx: idle::Context) -> ! {
+        #[allow(clippy::empty_loop)]
+        loop {}
+    }
+}