commit 05e85fae2bac718c961da8325d7da7a178698b8c
Author: okhsunrog <me@okhsunrog.ru>
Date:   Wed Aug 7 12:04:11 2024 +0300

    initial commit

diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..403ce84
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,18 @@
+[env]
+DEFMT_LOG="info"
+
+[build]
+target    = "riscv32imc-unknown-none-elf"
+rustflags = [
+  "-C", "link-arg=-Tdefmt.x",
+  "-C", "link-arg=-Tlinkall.x",
+  # NOTE: This is required to obtain backtraces, however it may negatively
+  #       impact the performance of your application.
+  "-C", "force-frame-pointers",
+]
+
+[target.riscv32imc-unknown-none-elf]
+runner = "probe-rs run --chip=esp32c3"
+
+[unstable]
+build-std = ["core"]
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6e771f8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,17 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# RustRover
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..201e87c
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,3 @@
+{
+  "recommendations": ["rust-lang.rust-analyzer", "tamasfe.even-better-toml"]
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..4228ffd
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,10 @@
+{
+  "editor.formatOnSave": true,
+
+  // Even Better TOML:
+  "evenBetterToml.formatter.alignComments": true,
+  "evenBetterToml.formatter.alignEntries": true,
+  "evenBetterToml.formatter.arrayAutoExpand": true,
+  "evenBetterToml.formatter.arrayTrailingComma": true,
+  "evenBetterToml.formatter.reorderArrays": true
+}
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..44fff9d
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..a21b1e5
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,25 @@
+[package]
+name         = "esp_hal_probe"
+version      = "0.1.0"
+edition      = "2021"
+rust-version = "1.76.0"
+
+[[bin]]
+name = "firmware"
+path = "src/bin/firmware.rs"
+
+[dependencies]
+defmt            = "0.3.8"
+defmt-rtt        = "0.4.1"
+embassy-executor = { version = "0.5.0",  features = ["defmt"] }
+embassy-time     = { version = "0.3.1",  features = ["generic-queue-8"] }
+esp-backtrace    = { version = "0.13.0", features = ["esp32c3", "defmt", "exception-handler", "panic-handler"] }
+esp-hal          = { version = "0.19.0", features = ["esp32c3", "defmt", "async"] }
+esp-hal-embassy  = { version = "0.2.0",  features = ["esp32c3", "defmt"] }
+static_cell      = { version = "2.1.0",  features = ["nightly"] }
+
+[profile.release]
+debug         = true  # Debug info is useful, and does not affect the size of the final binary
+codegen-units = 1     # LLVM can perform better optimizations using a single thread
+lto           = "fat" # Attempt to perform optimizations across all crates within the dependency graph
+opt-level     = "s"   # Optimize for binary size, but keep loop vectorization enabled
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..2c37516
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,4 @@
+[toolchain]
+channel    = "nightly-2024-06-01"
+components = ["rust-src"]
+targets    = ["riscv32imc-unknown-none-elf"]
diff --git a/rustfmt.toml b/rustfmt.toml
new file mode 100644
index 0000000..090d2e1
--- /dev/null
+++ b/rustfmt.toml
@@ -0,0 +1,16 @@
+# Edition
+edition = "2021"
+
+# Comments
+format_code_in_doc_comments = true
+normalize_comments          = true
+wrap_comments               = true
+
+# Imports
+group_imports       = "StdExternalCrate"
+imports_granularity = "Crate"
+imports_layout      = "HorizontalVertical"
+
+# Miscellaneous
+enum_discrim_align_threshold = 25
+hex_literal_case             = "Upper"
diff --git a/src/bin/firmware.rs b/src/bin/firmware.rs
new file mode 100644
index 0000000..bef2408
--- /dev/null
+++ b/src/bin/firmware.rs
@@ -0,0 +1,47 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::info;
+use defmt_rtt as _;
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
+use esp_backtrace as _;
+use esp_hal::{
+    clock::ClockControl,
+    peripherals::Peripherals,
+    prelude::*,
+    rtc_cntl::Rtc,
+    system::SystemControl,
+    timer::{timg::TimerGroup, OneShotTimer},
+};
+use static_cell::make_static;
+
+#[main]
+async fn main(spawner: Spawner) {
+    let peripherals = Peripherals::take();
+    let system = SystemControl::new(peripherals.SYSTEM);
+    let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
+
+    // Enable the RWDT watchdog timer:
+    let mut rtc = Rtc::new(peripherals.LPWR, None);
+    rtc.rwdt.set_timeout(2.secs());
+    rtc.rwdt.enable();
+    info!("RWDT watchdog enabled!");
+
+    // Initialize the SYSTIMER peripheral, and then Embassy:
+    let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks, None);
+    let timers = [OneShotTimer::new(timg0.timer0.into())];
+    let timers = make_static!(timers);
+    esp_hal_embassy::init(&clocks, timers);
+    info!("Embassy initialized!");
+
+    // TODO: Spawn some tasks
+    let _ = spawner;
+
+    // Periodically feed the RWDT watchdog timer when our tasks are not running:
+    loop {
+        rtc.rwdt.feed();
+        Timer::after(Duration::from_secs(1)).await;
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..0c9ac1a
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1 @@
+#![no_std]