working ble sample

.cargo/config.toml

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+[target.riscv32imac-unknown-none-elf]
+runner = "espflash flash --monitor"
+
+
+[env]
+ESP_LOGLEVEL="INFO"
+[build]
+rustflags = [
+  "-C", "link-arg=-Tlinkall.x",
+  "-C", "link-arg=-Trom_functions.x",
+
+  # Required to obtain backtraces (e.g. when using the "esp-backtrace" crate.)
+  # NOTE: May negatively impact performance of produced code
+  "-C", "force-frame-pointers",
+]
+
+target = "riscv32imac-unknown-none-elf"
+
+[unstable]
+build-std = ["alloc", "core"]

.github/workflows/rust_ci.yml

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+name: Continuous Integration
+
+on:
+  push:
+    paths-ignore:
+      - "**/README.md"
+  pull_request:
+  workflow_dispatch:
+
+env:
+  CARGO_TERM_COLOR: always
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+jobs:
+  rust-checks:
+    name: Rust Checks
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        action:
+          - command: build
+            args: --release
+          - command: fmt
+            args: --all -- --check --color always
+          - command: clippy
+            args: --all-features --workspace -- -D warnings
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Enable caching
+        uses: Swatinem/rust-cache@v2
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@v1
+        with:
+          target: riscv32imac-unknown-none-elf
+          toolchain: nightly
+          components: rust-src, rustfmt, clippy
+      - name: Run command
+        run: cargo ${{ matrix.action.command }} ${{ matrix.action.args }}

.gitignore

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+# 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

.vscode/settings.json

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+{
+    "rust-analyzer.checkOnSave.allTargets": false,
+}