Add rust arduino project

arduino/.cargo/config.toml

@@ -0,0 +1,8 @@
+[build]
+target = "avr-atmega328p.json"
+
+[target.'cfg(target_arch = "avr")']
+runner = "ravedude uno -cb 57600"
+
+[unstable]
+build-std = ["core"]

arduino/.gitignore

@@ -0,0 +1,2 @@
+target/
+Cargo.lock

arduino/.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+    "workbench.colorCustomizations": {
+        "activityBar.background": "#5A0C35",
+        "titleBar.activeBackground": "#7E114B",
+        "titleBar.activeForeground": "#FFFCFD"
+    }
+}

arduino/Cargo.toml

@@ -0,0 +1,29 @@
+[package]
+name = "arduino"
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[[bin]]
+name = "arduino"
+test = false
+bench = false
+
+[dependencies]
+panic-halt = "0.2"
+arduino-hal = { git = "https://github.com/Rahix/avr-hal", features = ["arduino-uno"], rev = "1aacefb335517f85d0de858231e11055d9768cdf" }
+# branch = "main",
+
+# Configure the build for minimal size - AVRs have very little program memory
+[profile.dev]
+panic = "abort"
+lto = true
+opt-level = "s"
+
+[profile.release]
+panic = "abort"
+codegen-units = 1
+debug = true
+lto = true
+opt-level = "s"

arduino/avr-atmega328p.json

@@ -0,0 +1,27 @@
+{
+    "arch": "avr",
+    "atomic-cas": false,
+    "cpu": "atmega328p",
+    "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
+    "eh-frame-header": false,
+    "exe-suffix": ".elf",
+    "executables": true,
+    "late-link-args": {
+        "gcc": [
+            "-lgcc"
+        ]
+    },
+    "linker": "avr-gcc",
+    "linker-is-gnu": true,
+    "llvm-target": "avr-unknown-unknown",
+    "max-atomic-width": 8,
+    "no-default-libraries": false,
+    "pre-link-args": {
+        "gcc": [
+            "-mmcu=atmega328p",
+            "-Wl,--as-needed"
+        ]
+    },
+    "target-c-int-width": "16",
+    "target-pointer-width": "16"
+}

arduino/rust-toolchain.toml

@@ -0,0 +1,4 @@
+[toolchain]
+channel = "nightly-2022-07-08"
+components = ["rust-src", "rustfmt"]
+profile = "minimal"

arduino/src/main.rs

@@ -0,0 +1,24 @@
+#![no_std]
+#![no_main]
+
+// use core::panic::PanicInfo;
+
+// #[panic_handler]
+// fn panic(info: &PanicInfo) -> ! {
+//     loop {}
+// }
+
+use panic_halt as _;
+
+#[arduino_hal::entry]
+fn main() -> ! {
+    let dp = arduino_hal::Peripherals::take().unwrap();
+    let pins = arduino_hal::pins!(dp);
+
+    let mut led = pins.d13.into_output();
+
+    loop {
+        led.toggle();
+        arduino_hal::delay_ms(1000);
+    }
+}

macroboard.ino

@@ -1,132 +0,0 @@
-/// ----------------------------------------------------------------
-/// ----------------------- Type Definitions -----------------------
-/// ----------------------------------------------------------------
-
-enum State {
-  WaitingForInput,
-  WaitingForAck,
-};
-
-struct Button {
-  const byte pin_id;
-  uint8_t last_state;
-};
-
-
-/// ----------------------------------------------------------------
-/// ----------------------- Board Specifics ------------------------
-/// ----------------------------------------------------------------
-
-const int button_count = 8;
-
-const Button buttons[button_count] = {
-  {
-    .pin_id = 6,
-    .last_state = LOW
-  },
-  {
-    .pin_id = 7,
-    .last_state = LOW
-  },
-  {
-    .pin_id = 8,
-    .last_state = LOW
-  },
-  {
-    .pin_id = 9,
-    .last_state = LOW
-  },
-  {
-    .pin_id = 10,
-    .last_state = LOW
-  },
-  {
-    .pin_id = 11,
-    .last_state = LOW
-  },
-  {
-    .pin_id = 12,
-    .last_state = LOW
-  },
-  {
-    .pin_id = 13,
-    .last_state = LOW
-  }
-};
-
-const char message_start = '<';
-const char message_end = '>';
-
-
-
-/// ----------------------------------------------------------------
-/// -------------------------- Variables ---------------------------
-/// ----------------------------------------------------------------
-
-State current_state;
-
-
-
-/// ----------------------------------------------------------------
-/// --------------------------- Startup ----------------------------
-/// ----------------------------------------------------------------
-
-void setup() {
-  // enable serial port, with 9600 Baud
-  Serial.begin(9600);
-
-  // setup variables
-  current_state = WaitingForInput;
-
-  // setup pins
-  for (byte i = 0; i < button_count; i++) {
-    pinMode(&buttons[i], INPUT);
-  }
-}
-
-void loop() {
-  // check for possible input   
-  if (current_state == WaitingForInput) {
-    for (byte i = 0; i < button_count; i++) {
-      check_pin(&buttons[i], i);
-    }
-  }
-}
-
-void check_pin(Button* button, byte index) {
-  if (digitalRead(button->pin_id) == HIGH) {
-    if (button->last_state == LOW) { 
-      button->last_state = HIGH;
-
-      /*
-      // assemble message
-      Serial.print(message_start);
-      Serial.print(index + 1);
-      Serial.print(message_end);
-    
-      // force new line
-      Serial.print('\n');
-      */
-      
-      debug_message(button->pin_id, "HIGH");
-    }    
-  } else {
-    if (button->last_state == HIGH) {
-      button->last_state = LOW;
-
-      debug_message(button->pin_id, "LOW");
-    }
-  }
-}
-
-void debug_message(byte pin_id, char c[]) {
-  // assemble message
-  Serial.print(message_start);
-  Serial.print(pin_id);
-  Serial.print(' ');
-  Serial.print(c);
-  Serial.print(message_end);
-
-  // force new line
-  Serial.print('\n');
-}