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shimun 2023-01-09 16:27:30 +01:00
commit 23227df215
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20
Cargo.toml Normal file
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[package]
name = "esp32c3"
version = "0.1.0"
edition = "2021"
authors = [ "Marvin Drescher <m@sparv.in>" ]
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
critical-section = "1.1.1"
embassy-executor = { package = "embassy-executor", git = "https://github.com/embassy-rs/embassy/", rev = "eed34f9", features = ["nightly", "integrated-timers"] }
embassy-time = { version = "0.1.0", features = ["nightly"] }
embedded-hal = "0.2.7"
esp-backtrace = { version = "0.4.0", features = ["esp32c3", "exception-handler", "panic-handler"] }
esp-hal-common = { version = "0.4.0", features = ["esp32c3"] }
esp-println = { version = "0.3.1", features = ["esp32c3"] }
esp32c3-hal = { version = "0.4.0", features = ["embassy", "embassy-time", "embassy-time-timg0", "smartled", "embedded-hal-async", "async", "direct-boot"] }
riscv = "0.10.0"
riscv-rt = "0.10.0"
static_cell = "1.0.0"

59
flake.nix Normal file
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{
inputs = {
fenix.url = "github:nix-community/fenix";
flake-utils.url = "github:numtide/flake-utils";
naersk.url = "github:nix-community/naersk";
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
};
outputs = { self, fenix, flake-utils, naersk, nixpkgs }:
flake-utils.lib.eachDefaultSystem (system:
let
pkgs = (import nixpkgs) {
inherit system;
};
fenix' = fenix.packages.${system};
toolchain = with fenix';
combine [
minimal.rustc
minimal.cargo
targets.riscv32imc-unknown-none-elf.latest.rust-std # ESP32-C3 RISC-V
targets.riscv32imac-unknown-none-elf.latest.rust-std # ESP32-C3 RISC-V \w atomic emulation
];
naersk' = naersk.lib.${system}.override {
cargo = toolchain;
rustc = toolchain;
};
in rec {
defaultPackage = packages.riscv32-embedded;
packages.riscv32-embedded = naersk'.buildPackage rec {
src = self;
depsBuildBuild = with pkgs; [
pkgsCross.riscv32-embedded.stdenv.cc
];
doCheck = true;
RUSTFLAGS="-C link-arg=-Tlinkall.x -C force-frame-pointers";
# CARGO_UNSTABLE_BUILD_STD = "true";
"CARGO_TARGET_${pkgs.lib.toUpper CARGO_BUILD_TARGET}_LINKER" = "riscv32-none-elf-gcc";
"CARGO_TARGET_${pkgs.lib.toUpper CARGO_BUILD_TARGET}_RUNNER" = "espflash --monitor";
CARGO_BUILD_TARGET = "riscv32imc-unknown-none-elf";
shellHook = ''
'';
};
devShell = with pkgs; mkShell ({
RUST_SRC_PATH = "${fenix'.complete.rust-src}/lib/rustlib/src/rust/library";
nativeBuildInputs = [ toolchain cargo-espmonitor cargo-espflash ] ++ defaultPackage.depsBuildBuild;
} // (lib.filterAttrs (name: _: lib.hasPrefix "CARGO_" name || lib.hasPrefix "RUST" name) defaultPackage));
}
);
}

88
src/main.rs Normal file
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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use embassy_executor::Executor;
use embassy_time::{Duration, Timer};
use esp32c3_hal::{clock::ClockControl, prelude::*, timer::TimerGroup, Rtc, embassy};
use esp_backtrace as _;
use esp_hal_common::{Bank0GpioRegisterAccess, GpioPin, InputOutputAnalogPinType, Unknown, IO, pac::Peripherals};
use static_cell::StaticCell;
#[embassy_executor::task]
async fn run1() {
loop {
esp_println::println!("Hello world from embassy using esp-hal-async!");
Timer::after(Duration::from_millis(1_000)).await;
esp_println::println!("Just woke up");
}
}
#[embassy_executor::task]
async fn run2() {
loop {
esp_println::println!("Bing!");
Timer::after(Duration::from_millis(5_000)).await;
}
}
#[embassy_executor::task]
async fn run_io(io: IO) {
let led = io.pins.gpio1;
blink_led(led).await;
}
async fn blink_led<const N: u8>(
pin: GpioPin<Unknown, Bank0GpioRegisterAccess, InputOutputAnalogPinType, N>,
) {
let mut led = pin.into_push_pull_output();
let mut on = true;
loop {
if on {
esp_println::println!("On!");
} else {
esp_println::println!("Off!");
}
Timer::after(Duration::from_millis(5_00)).await;
on = !on;
}
}
static EXECUTOR: StaticCell<Executor> = StaticCell::new();
#[riscv_rt::entry]
fn main() -> ! {
esp_println::println!("Init!");
let peripherals = Peripherals::take().unwrap();
let system = peripherals.SYSTEM.split();
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
let mut rtc = Rtc::new(peripherals.RTC_CNTL);
let timer_group0 = TimerGroup::new(peripherals.TIMG0, &clocks);
let mut wdt0 = timer_group0.wdt;
let timer_group1 = TimerGroup::new(peripherals.TIMG1, &clocks);
let mut wdt1 = timer_group1.wdt;
// Disable watchdog timers
rtc.swd.disable();
rtc.rwdt.disable();
wdt0.disable();
wdt1.disable();
// embassy::init(
// &clocks,
// esp32c3_hal::systimer::SystemTimer::new(peripherals.SYSTIMER),
// );
embassy::init(&clocks, timer_group0.timer0);
let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
let executor = EXECUTOR.init(Executor::new());
executor.run(move |spawner| {
spawner.spawn(run1()).ok();
spawner.spawn(run2()).ok();
let res = spawner.spawn(run_io(io));
esp_println::println!("{res:?}");
});
}