Initial commit

.cargo/config.toml

@@ -0,0 +1,9 @@
+[build]
+target = 'xtensa-esp32-none-elf'
+rustflags = [
+    '-C', 'link-arg=-Tlinkall.x',
+    '-C', 'link-arg=-nostartfiles',
+]
+
+[unstable]
+build-std = ['core']

.gitignore

@@ -0,0 +1,2 @@
+/target
+firmware.bin

Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = 'esp-rs'
+version = '0.1.0'
+edition = '2021'
+
+# Optimize the binary
+# See https://yew.rs/docs/advanced-topics/optimizations#cargotoml
+[profile.release]
+panic = 'abort'
+codegen-units = 1
+opt-level = 'z'
+lto = true
+strip = true
+
+[dependencies]
+esp32-hal = '0.13.0'
+esp-println = { version = '0.5.0', features = ['esp32'] }

Makefile.toml

@@ -0,0 +1,32 @@
+# For the "build" task
+# See https://github.com/sagiegurari/cargo-make/issues/351
+[config]
+skip_core_tasks = true
+
+[tasks.build]
+script = '. ~/export-esp.sh && cargo build --release'
+
+[tasks.flash]
+command = 'espflash'
+args = [
+    'flash',
+    'target/xtensa-esp32-none-elf/release/${CARGO_MAKE_PROJECT_NAME}',
+    '--monitor'
+]
+dependencies = ['build']
+
+[tasks.image]
+command = 'espflash'
+args = [
+    'save-image',
+    'target/xtensa-esp32-none-elf/release/${CARGO_MAKE_PROJECT_NAME}',
+    'firmware.bin',
+    '--chip', 'esp32',
+    '--merge',
+    '--skip-padding'
+]
+dependencies = ['build']
+
+[tasks.monitor]
+command = 'espflash'
+args = ['monitor']

README.md

@@ -0,0 +1,7 @@
+# Rust on the ESP32
+
+A minimal template repository for coding in Rust on the ESP32
+
+## Usage
+
+You first need to install the [`espup`](https://github.com/esp-rs/espup) and [`espflash`](https://github.com/esp-rs/espflash/tree/main/espflash) tools and run `espup install`

rust-toolchain.toml

@@ -0,0 +1,2 @@
+[toolchain]
+channel = 'esp'

src/main.rs

@@ -0,0 +1,16 @@
+#![no_std]
+#![no_main]
+
+use esp32_hal::prelude::entry;
+use esp_println::println;
+
+#[panic_handler]
+fn panic(_info: &core::panic::PanicInfo) -> ! {
+    loop {}
+}
+
+#[entry]
+fn main() -> ! {
+    println!("Hello world!");
+    loop {}
+}