.
├── build.rs
├── .cargo
│   └── config.toml
├── Cargo.toml
├── .gitignore
├── rust-toolchain.toml
├── sdkconfig.defaults
└── src
    └── main.rs

2 directories, 7 files

fn main() {
    embuild::espidf::sysenv::output();
}

[build]
target = "xtensa-esp32s3-espidf"

[target.xtensa-esp32s3-espidf]
linker = "ldproxy"
# runner = "espflash --monitor" # Select this runner for espflash v1.x.x
runner = "espflash flash --monitor" # Select this runner for espflash v2.x.x
rustflags = [ "--cfg",  "espidf_time64"] # Extending time_t for ESP IDF 5: https://github.com/esp-rs/rust/issues/110

[unstable]
build-std = ["std", "panic_abort"]

[env]
MCU="esp32s3"
# Note: this variable is not used by the pio builder (`cargo build --features pio`)
ESP_IDF_VERSION = "v5.1.2"

[package]
name = "esp32s3-ring-sandbox"
version = "0.1.0"
authors = ["coder0xff <coder0xff@gmail.com>"]
edition = "2021"
resolver = "2"
rust-version = "1.71"

[profile.release]
opt-level = "s"

[profile.dev]
debug = true    # Symbols are nice and they don't increase the size on Flash
opt-level = "z"

[features]
default = ["std", "embassy", "esp-idf-svc/native"]

pio = ["esp-idf-svc/pio"]
std = ["alloc", "esp-idf-svc/binstart", "esp-idf-svc/std"]
alloc = ["esp-idf-svc/alloc"]
nightly = ["esp-idf-svc/nightly"]
experimental = ["esp-idf-svc/experimental"]
embassy = ["esp-idf-svc/embassy-sync", "esp-idf-svc/critical-section", "esp-idf-svc/embassy-time-driver"]

[dependencies]
log = { version = "0.4", default-features = false }
esp-idf-svc = { version = "0.48", default-features = false }
ring = { features = ["alloc", "less-safe-getrandom-espidf"] }

[patch.crates-io]
ring = { path = "../ring" }

[build-dependencies]
embuild = "0.31.3"

/.vscode
/.embuild
/target
/Cargo.lock

[toolchain]
channel = "esp"

# Rust often needs a bit of an extra main task stack size compared to C (the default is 3K)
CONFIG_ESP_MAIN_TASK_STACK_SIZE=8000

# Use this to set FreeRTOS kernel tick frequency to 1000 Hz (100 Hz by default).
# This allows to use 1 ms granuality for thread sleeps (10 ms by default).
#CONFIG_FREERTOS_HZ=1000

# Workaround for https://github.com/espressif/esp-idf/issues/7631
#CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=n
#CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_FULL=n

fn main() {
    // It is necessary to call this function once. Otherwise some patches to the runtime
    // implemented by esp-idf-sys might not link properly. See https://github.com/esp-rs/esp-idf-template/issues/71
    esp_idf_svc::sys::link_patches();

    // Bind the log crate to the ESP Logging facilities
    esp_idf_svc::log::EspLogger::initialize_default();

    log::info!("Hello, world!");
}