From f135e2484a1aface86dff23ef789384851010712 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ahmet=20Kaan=20G=C3=9CM=C3=9C=C5=9E?=
 <96421894+Tahinli@users.noreply.github.com>
Date: Fri, 12 Jan 2024 23:41:54 +0300
Subject: [PATCH] feat: blink and timer

---
 001-led_blink/.cargo/config.toml            |   8 ++
 001-led_blink/Cargo.toml                    |  36 ++++++
 001-led_blink/avr-specs/avr-atmega1280.json |  25 ++++
 001-led_blink/avr-specs/avr-atmega168.json  |  25 ++++
 001-led_blink/avr-specs/avr-atmega2560.json |  25 ++++
 001-led_blink/avr-specs/avr-atmega328p.json |  25 ++++
 001-led_blink/avr-specs/avr-atmega32u4.json |  25 ++++
 001-led_blink/avr-specs/avr-atmega48p.json  |  25 ++++
 001-led_blink/avr-specs/avr-attiny85.json   |  25 ++++
 001-led_blink/avr-specs/avr-attiny88.json   |  25 ++++
 001-led_blink/rust-toolchain.toml           |   4 +
 001-led_blink/src/main.rs                   | 119 ++++++++++++++++++++
 002-timer/.cargo/config.toml                |   8 ++
 002-timer/Cargo.toml                        |  36 ++++++
 002-timer/avr-specs/avr-atmega1280.json     |  25 ++++
 002-timer/avr-specs/avr-atmega168.json      |  25 ++++
 002-timer/avr-specs/avr-atmega2560.json     |  25 ++++
 002-timer/avr-specs/avr-atmega328p.json     |  25 ++++
 002-timer/avr-specs/avr-atmega32u4.json     |  25 ++++
 002-timer/avr-specs/avr-atmega48p.json      |  25 ++++
 002-timer/avr-specs/avr-attiny85.json       |  25 ++++
 002-timer/avr-specs/avr-attiny88.json       |  25 ++++
 002-timer/rust-toolchain.toml               |   4 +
 002-timer/src/main.rs                       |  56 +++++++++
 24 files changed, 671 insertions(+)
 create mode 100644 001-led_blink/.cargo/config.toml
 create mode 100644 001-led_blink/Cargo.toml
 create mode 100644 001-led_blink/avr-specs/avr-atmega1280.json
 create mode 100644 001-led_blink/avr-specs/avr-atmega168.json
 create mode 100644 001-led_blink/avr-specs/avr-atmega2560.json
 create mode 100644 001-led_blink/avr-specs/avr-atmega328p.json
 create mode 100644 001-led_blink/avr-specs/avr-atmega32u4.json
 create mode 100644 001-led_blink/avr-specs/avr-atmega48p.json
 create mode 100644 001-led_blink/avr-specs/avr-attiny85.json
 create mode 100644 001-led_blink/avr-specs/avr-attiny88.json
 create mode 100644 001-led_blink/rust-toolchain.toml
 create mode 100644 001-led_blink/src/main.rs
 create mode 100644 002-timer/.cargo/config.toml
 create mode 100644 002-timer/Cargo.toml
 create mode 100644 002-timer/avr-specs/avr-atmega1280.json
 create mode 100644 002-timer/avr-specs/avr-atmega168.json
 create mode 100644 002-timer/avr-specs/avr-atmega2560.json
 create mode 100644 002-timer/avr-specs/avr-atmega328p.json
 create mode 100644 002-timer/avr-specs/avr-atmega32u4.json
 create mode 100644 002-timer/avr-specs/avr-atmega48p.json
 create mode 100644 002-timer/avr-specs/avr-attiny85.json
 create mode 100644 002-timer/avr-specs/avr-attiny88.json
 create mode 100644 002-timer/rust-toolchain.toml
 create mode 100644 002-timer/src/main.rs

diff --git a/001-led_blink/.cargo/config.toml b/001-led_blink/.cargo/config.toml
new file mode 100644
index 0000000..d502ee5
--- /dev/null
+++ b/001-led_blink/.cargo/config.toml
@@ -0,0 +1,8 @@
+[build]
+target = "avr-specs/avr-atmega328p.json"
+
+[target.'cfg(target_arch = "avr")']
+runner = "ravedude uno -cb 57600"
+
+[unstable]
+build-std = ["core"]
diff --git a/001-led_blink/Cargo.toml b/001-led_blink/Cargo.toml
new file mode 100644
index 0000000..dde92b6
--- /dev/null
+++ b/001-led_blink/Cargo.toml
@@ -0,0 +1,36 @@
+[package]
+name = "rust-arduino"
+version = "0.1.0"
+authors = ["Ahmet Kaan GÜMÜŞ <96421894+Tahinli@users.noreply.github.com>"]
+edition = "2021"
+license = "MIT OR Apache-2.0 OR GPL-3.0"
+
+[[bin]]
+name = "rust-arduino"
+test = false
+bench = false
+
+[dependencies]
+panic-halt = "0.2.0"
+ufmt = "0.2.0"
+nb = "1.1.0"
+embedded-hal = "1.0.0"
+avr-device = "0.5.3"
+
+[dependencies.arduino-hal]
+git = "https://github.com/rahix/avr-hal"
+rev = "190f2c3cb8d29e10f71119352b912369dc5a1fb7"
+features = ["arduino-uno"]
+
+# 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 = false
+lto = true
+opt-level = "s"
diff --git a/001-led_blink/avr-specs/avr-atmega1280.json b/001-led_blink/avr-specs/avr-atmega1280.json
new file mode 100644
index 0000000..8253bb1
--- /dev/null
+++ b/001-led_blink/avr-specs/avr-atmega1280.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega1280",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega1280"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/001-led_blink/avr-specs/avr-atmega168.json b/001-led_blink/avr-specs/avr-atmega168.json
new file mode 100644
index 0000000..c6fbfec
--- /dev/null
+++ b/001-led_blink/avr-specs/avr-atmega168.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega168",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega168"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/001-led_blink/avr-specs/avr-atmega2560.json b/001-led_blink/avr-specs/avr-atmega2560.json
new file mode 100644
index 0000000..6fcefb2
--- /dev/null
+++ b/001-led_blink/avr-specs/avr-atmega2560.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega2560",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega2560"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/001-led_blink/avr-specs/avr-atmega328p.json b/001-led_blink/avr-specs/avr-atmega328p.json
new file mode 100644
index 0000000..ab3dcdf
--- /dev/null
+++ b/001-led_blink/avr-specs/avr-atmega328p.json
@@ -0,0 +1,25 @@
+{
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega328p"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/001-led_blink/avr-specs/avr-atmega32u4.json b/001-led_blink/avr-specs/avr-atmega32u4.json
new file mode 100644
index 0000000..637dbe5
--- /dev/null
+++ b/001-led_blink/avr-specs/avr-atmega32u4.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega32u4",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega32u4"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/001-led_blink/avr-specs/avr-atmega48p.json b/001-led_blink/avr-specs/avr-atmega48p.json
new file mode 100644
index 0000000..0a2254e
--- /dev/null
+++ b/001-led_blink/avr-specs/avr-atmega48p.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega48p",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega48p"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/001-led_blink/avr-specs/avr-attiny85.json b/001-led_blink/avr-specs/avr-attiny85.json
new file mode 100644
index 0000000..5d092a1
--- /dev/null
+++ b/001-led_blink/avr-specs/avr-attiny85.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "attiny85",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=attiny85"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/001-led_blink/avr-specs/avr-attiny88.json b/001-led_blink/avr-specs/avr-attiny88.json
new file mode 100644
index 0000000..0a330cd
--- /dev/null
+++ b/001-led_blink/avr-specs/avr-attiny88.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "attiny88",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=attiny88"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/001-led_blink/rust-toolchain.toml b/001-led_blink/rust-toolchain.toml
new file mode 100644
index 0000000..71ef1c6
--- /dev/null
+++ b/001-led_blink/rust-toolchain.toml
@@ -0,0 +1,4 @@
+[toolchain]
+channel = "nightly-2023-08-08"
+components = ["rust-src"]
+profile = "minimal"
diff --git a/001-led_blink/src/main.rs b/001-led_blink/src/main.rs
new file mode 100644
index 0000000..2521990
--- /dev/null
+++ b/001-led_blink/src/main.rs
@@ -0,0 +1,119 @@
+#![no_std]
+#![no_main]
+
+use core::cell::RefCell;
+use avr_device::interrupt;
+use panic_halt as _;
+
+type Console = arduino_hal::hal::usart::Usart0<arduino_hal::DefaultClock>;
+static CONSOLE: interrupt::Mutex<RefCell<Option<Console>>> = interrupt::Mutex::new(RefCell::new(None));
+
+macro_rules! println {
+    ($($t:tt)*) => {
+        interrupt::free(
+            |cs|
+                {
+                    if let Some(console) = CONSOLE.borrow(cs).borrow_mut().as_mut()
+                        {
+                            let _ = ufmt::uwriteln!(console, $($t)*);
+                        }
+                }
+        )
+        
+    };
+}
+
+fn put_console(console:Console)
+    {
+        interrupt::free(
+            |cs|
+                {
+                    *CONSOLE.borrow(cs).borrow_mut() = Some(console);
+                }
+        )
+    }
+#[arduino_hal::entry]
+fn main() -> ! {
+    let dp = arduino_hal::Peripherals::take().unwrap();
+    let pins = arduino_hal::pins!(dp);
+    let serial = arduino_hal::default_serial!(dp, pins, 57600);
+    put_console(serial);
+    println!("Hello World");
+    
+
+	let mut led02 = pins.d2.into_output();
+	let mut led03 = pins.d3.into_output();
+    let mut led04 = pins.d4.into_output();
+    let mut led05 = pins.d5.into_output();
+    let mut led06 = pins.d6.into_output();
+    let mut led07 = pins.d7.into_output();
+    //let mut led08 = pins.d8.into_output();
+    let mut led09 = pins.d9.into_output();
+    let mut led10 = pins.d10.into_output();
+    let mut led11 = pins.d11.into_output();
+    let mut led12 = pins.d12.into_output();
+    let mut led13 = pins.d13.into_output();
+
+    loop {
+    	led02.toggle();
+        arduino_hal::delay_ms(50);
+        led02.toggle();
+        led03.toggle();
+        arduino_hal::delay_ms(50);
+        led03.toggle();
+        led04.toggle();
+        arduino_hal::delay_ms(50);
+        led04.toggle();
+        led05.toggle();
+        arduino_hal::delay_ms(50);
+        led05.toggle();
+        led06.toggle();
+        arduino_hal::delay_ms(50);
+        led06.toggle();
+        led07.toggle();
+        arduino_hal::delay_ms(50);
+        led07.toggle();
+        led09.toggle();
+        arduino_hal::delay_ms(50);
+        led09.toggle();
+        led10.toggle();
+        arduino_hal::delay_ms(50);
+        led10.toggle();
+        led11.toggle();
+        arduino_hal::delay_ms(50);
+        led11.toggle();
+        led12.toggle();
+        arduino_hal::delay_ms(50);
+        led12.toggle();
+        led13.toggle();
+        arduino_hal::delay_ms(50);
+        led13.toggle();
+        led12.toggle();
+        arduino_hal::delay_ms(50);
+        led12.toggle();
+        led11.toggle();
+        arduino_hal::delay_ms(50);
+        led11.toggle();
+        led10.toggle();
+        arduino_hal::delay_ms(50);
+        led10.toggle();
+        led09.toggle();
+        arduino_hal::delay_ms(50);
+        led09.toggle();
+        led07.toggle();
+        arduino_hal::delay_ms(50);
+        led07.toggle();
+        led06.toggle();
+        arduino_hal::delay_ms(50);
+        led06.toggle();
+        led05.toggle();
+        arduino_hal::delay_ms(50);
+        led05.toggle();
+        led04.toggle();
+        arduino_hal::delay_ms(50);
+        led04.toggle();
+        led03.toggle();
+        arduino_hal::delay_ms(50);
+        led03.toggle();
+    }
+}
diff --git a/002-timer/.cargo/config.toml b/002-timer/.cargo/config.toml
new file mode 100644
index 0000000..d502ee5
--- /dev/null
+++ b/002-timer/.cargo/config.toml
@@ -0,0 +1,8 @@
+[build]
+target = "avr-specs/avr-atmega328p.json"
+
+[target.'cfg(target_arch = "avr")']
+runner = "ravedude uno -cb 57600"
+
+[unstable]
+build-std = ["core"]
diff --git a/002-timer/Cargo.toml b/002-timer/Cargo.toml
new file mode 100644
index 0000000..dde92b6
--- /dev/null
+++ b/002-timer/Cargo.toml
@@ -0,0 +1,36 @@
+[package]
+name = "rust-arduino"
+version = "0.1.0"
+authors = ["Ahmet Kaan GÜMÜŞ <96421894+Tahinli@users.noreply.github.com>"]
+edition = "2021"
+license = "MIT OR Apache-2.0 OR GPL-3.0"
+
+[[bin]]
+name = "rust-arduino"
+test = false
+bench = false
+
+[dependencies]
+panic-halt = "0.2.0"
+ufmt = "0.2.0"
+nb = "1.1.0"
+embedded-hal = "1.0.0"
+avr-device = "0.5.3"
+
+[dependencies.arduino-hal]
+git = "https://github.com/rahix/avr-hal"
+rev = "190f2c3cb8d29e10f71119352b912369dc5a1fb7"
+features = ["arduino-uno"]
+
+# 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 = false
+lto = true
+opt-level = "s"
diff --git a/002-timer/avr-specs/avr-atmega1280.json b/002-timer/avr-specs/avr-atmega1280.json
new file mode 100644
index 0000000..8253bb1
--- /dev/null
+++ b/002-timer/avr-specs/avr-atmega1280.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega1280",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega1280"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/002-timer/avr-specs/avr-atmega168.json b/002-timer/avr-specs/avr-atmega168.json
new file mode 100644
index 0000000..c6fbfec
--- /dev/null
+++ b/002-timer/avr-specs/avr-atmega168.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega168",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega168"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/002-timer/avr-specs/avr-atmega2560.json b/002-timer/avr-specs/avr-atmega2560.json
new file mode 100644
index 0000000..6fcefb2
--- /dev/null
+++ b/002-timer/avr-specs/avr-atmega2560.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega2560",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega2560"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/002-timer/avr-specs/avr-atmega328p.json b/002-timer/avr-specs/avr-atmega328p.json
new file mode 100644
index 0000000..ab3dcdf
--- /dev/null
+++ b/002-timer/avr-specs/avr-atmega328p.json
@@ -0,0 +1,25 @@
+{
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega328p"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/002-timer/avr-specs/avr-atmega32u4.json b/002-timer/avr-specs/avr-atmega32u4.json
new file mode 100644
index 0000000..637dbe5
--- /dev/null
+++ b/002-timer/avr-specs/avr-atmega32u4.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega32u4",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega32u4"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/002-timer/avr-specs/avr-atmega48p.json b/002-timer/avr-specs/avr-atmega48p.json
new file mode 100644
index 0000000..0a2254e
--- /dev/null
+++ b/002-timer/avr-specs/avr-atmega48p.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "atmega48p",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=atmega48p"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/002-timer/avr-specs/avr-attiny85.json b/002-timer/avr-specs/avr-attiny85.json
new file mode 100644
index 0000000..5d092a1
--- /dev/null
+++ b/002-timer/avr-specs/avr-attiny85.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "attiny85",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=attiny85"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/002-timer/avr-specs/avr-attiny88.json b/002-timer/avr-specs/avr-attiny88.json
new file mode 100644
index 0000000..0a330cd
--- /dev/null
+++ b/002-timer/avr-specs/avr-attiny88.json
@@ -0,0 +1,25 @@
+{
+  "arch": "avr",
+  "atomic-cas": false,
+  "cpu": "attiny88",
+  "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",
+  "llvm-target": "avr-unknown-unknown",
+  "max-atomic-width": 8,
+  "no-default-libraries": false,
+  "pre-link-args": {
+    "gcc": [
+      "-mmcu=attiny88"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-pointer-width": "16"
+}
diff --git a/002-timer/rust-toolchain.toml b/002-timer/rust-toolchain.toml
new file mode 100644
index 0000000..71ef1c6
--- /dev/null
+++ b/002-timer/rust-toolchain.toml
@@ -0,0 +1,4 @@
+[toolchain]
+channel = "nightly-2023-08-08"
+components = ["rust-src"]
+profile = "minimal"
diff --git a/002-timer/src/main.rs b/002-timer/src/main.rs
new file mode 100644
index 0000000..fb291d3
--- /dev/null
+++ b/002-timer/src/main.rs
@@ -0,0 +1,56 @@
+#![no_std]
+#![no_main]
+
+use core::cell::RefCell;
+use avr_device::interrupt;
+use panic_halt as _;
+
+type Console = arduino_hal::hal::usart::Usart0<arduino_hal::DefaultClock>;
+static CONSOLE: interrupt::Mutex<RefCell<Option<Console>>> = interrupt::Mutex::new(RefCell::new(None));
+
+macro_rules! println {
+    ($($t:tt)*) => {
+        interrupt::free(
+            |cs|
+                {
+                    if let Some(console) = CONSOLE.borrow(cs).borrow_mut().as_mut()
+                        {
+                            let _ = ufmt::uwriteln!(console, $($t)*);
+                        }
+                }
+        )
+        
+    };
+}
+
+fn put_console(console:Console)
+    {
+        interrupt::free(
+            |cs|
+                {
+                    *CONSOLE.borrow(cs).borrow_mut() = Some(console);
+                }
+        )
+    }
+#[arduino_hal::entry]
+fn main() -> ! {
+    let dp = arduino_hal::Peripherals::take().unwrap();
+    let pins = arduino_hal::pins!(dp);
+    let serial = arduino_hal::default_serial!(dp, pins, 57600);
+    put_console(serial);
+    println!("Hello World");
+    
+
+	let mut pin2 = pins.d2.into_output();
+    let mut pin13 = pins.d13.into_output();
+    loop {
+        for i in 0..60
+            {
+                println!("{}", i);
+                pin2.toggle();
+                arduino_hal::delay_ms(1000);
+                pin13.toggle();
+            }
+        println!("Minute");
+    }
+}