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version = "0.7.0", features = [ + "defmt", + "task-arena-size-20480", +] } +embassy-time = "0.4.0" +esp-hal = { version = "1.0.0-beta.0", features = [ + "defmt", + "esp32", + "unstable", +] } +esp-hal-embassy = { version = "0.7.0", features = ["esp32"] } +esp-println = { version = "0.13.0", features = ["defmt-espflash", "esp32"] } +static_cell = { version = "2.1.0", features = ["nightly"] } +epd-waveshare = { features = [ + "graphics", +], git = "https://github.com/ImplFerris/epd-waveshare", branch = "1in54_v2_fix" } +embedded-hal-bus = { version = "0.1" } +embedded-graphics = "0.8.1" + + +[profile.dev] +# Rust debug is too slow. +# For debug builds always builds with some optimization +opt-level = "s" + +[profile.release] +codegen-units = 1 # LLVM can perform better optimizations using a single thread +debug = 2 +debug-assertions = false +incremental = false +lto = 'fat' +opt-level = 's' +overflow-checks = false diff --git a/build.rs b/build.rs new file mode 100644 index 0000000..f4d6664 --- /dev/null +++ b/build.rs @@ -0,0 +1,53 @@ +fn main() { + linker_be_nice(); + println!("cargo:rustc-link-arg=-Tdefmt.x"); + // make sure linkall.x is the last linker script (otherwise might cause problems with flip-link) + println!("cargo:rustc-link-arg=-Tlinkall.x"); +} + +fn linker_be_nice() { + let args: Vec = std::env::args().collect(); + if args.len() > 1 { + let kind = &args[1]; + let what = &args[2]; + + match kind.as_str() { + "undefined-symbol" => match what.as_str() { + "_defmt_timestamp" => { + eprintln!(); + eprintln!("💡 `defmt` not found - make sure `defmt.x` is added as a linker script and you have included `use defmt_rtt as _;`"); + eprintln!(); + } + "_stack_start" => { + eprintln!(); + eprintln!("💡 Is the linker script `linkall.x` missing?"); + eprintln!(); + } + "esp_wifi_preempt_enable" + | "esp_wifi_preempt_yield_task" + | "esp_wifi_preempt_task_create" => { + eprintln!(); + eprintln!("💡 `esp-wifi` has no scheduler enabled. Make sure you have the `builtin-scheduler` feature enabled, or that you provide an external scheduler."); + eprintln!(); + } + "embedded_test_linker_file_not_added_to_rustflags" => { + eprintln!(); + eprintln!("💡 `embedded-test` not found - make sure `embedded-test.x` is added as a linker script for tests"); + eprintln!(); + } + _ => (), + }, + // we don't have anything helpful for "missing-lib" yet + _ => { + std::process::exit(1); + } + } + + std::process::exit(0); + } + + println!( + "cargo:rustc-link-arg=-Wl,--error-handling-script={}", + std::env::current_exe().unwrap().display() + ); +} diff --git a/diagram.json b/diagram.json new file mode 100644 index 0000000..0eb4a21 --- /dev/null +++ b/diagram.json @@ -0,0 +1,33 @@ +{ + "version": 1, + "editor": "wokwi", + "parts": [ + { + "type": "board-esp32-devkit-c-v4", + "id": "esp", + "top": 0.59, + "left": 0.67, + "attrs": { + "flashSize": "16" + } + } + ], + "connections": [ + [ + "esp:TX", + "$serialMonitor:RX", + "", + [] + ], + [ + "esp:RX", + "$serialMonitor:TX", + "", + [] + ] + ], + "serialMonitor": { + "display": "terminal", + "convertEol": true + } +} diff --git a/rust-toolchain.toml b/rust-toolchain.toml new file mode 100644 index 0000000..412e77f --- /dev/null +++ b/rust-toolchain.toml @@ -0,0 +1,2 @@ +[toolchain] +channel = "book-1.0.0-beta" diff --git a/src/bin/main.rs b/src/bin/main.rs new file mode 100644 index 0000000..fb82bf1 --- /dev/null +++ b/src/bin/main.rs @@ -0,0 +1,101 @@ +#![no_std] +#![no_main] + +use defmt::info; +use embassy_executor::Spawner; +use embassy_time::{Delay, Duration, Timer}; +use embedded_graphics::mono_font::ascii::FONT_10X20; +use embedded_graphics::prelude::*; +use epd_waveshare::prelude::WaveshareDisplay; +use esp_hal::clock::CpuClock; +use esp_hal::timer::timg::TimerGroup; +use esp_println as _; + +use embedded_graphics::mono_font::MonoTextStyleBuilder; +use embedded_graphics::text::{Baseline, Text}; +use embedded_hal_bus::spi::ExclusiveDevice; +use epd_waveshare::color::Color; +use epd_waveshare::epd1in54_v2::{Display1in54, Epd1in54}; +use esp_hal::gpio::{Input, InputConfig, Level, Output, OutputConfig, Pull}; +use esp_hal::spi::master::{Config as SpiConfig, Spi}; +use esp_hal::spi::Mode as SpiMode; +use esp_hal::time::Rate; + +#[panic_handler] +fn panic(info: &core::panic::PanicInfo) -> ! { + esp_println::println!("Panic occurred: {:?}", info); + + loop {} +} + +#[esp_hal_embassy::main] +async fn main(_spawner: Spawner) { + // generator version: 0.3.1 + + let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max()); + let peripherals = esp_hal::init(config); + + let timer0 = TimerGroup::new(peripherals.TIMG1); + esp_hal_embassy::init(timer0.timer0); + + info!("Embassy initialized!"); + + let spi = Spi::new( + peripherals.SPI2, + SpiConfig::default() + .with_frequency(Rate::from_mhz(4)) + .with_mode(SpiMode::_0), + ) + .unwrap() + //CLK + .with_sck(peripherals.GPIO18) + //DIN + .with_mosi(peripherals.GPIO23); + + let busy_in = Input::new( + peripherals.GPIO22, + InputConfig::default().with_pull(Pull::None), + ); + + let cs = Output::new(peripherals.GPIO33, Level::Low, OutputConfig::default()); + let mut spi_dev = ExclusiveDevice::new(spi, cs, Delay); + let dc = Output::new(peripherals.GPIO17, Level::Low, OutputConfig::default()); + let reset = Output::new(peripherals.GPIO16, Level::Low, OutputConfig::default()); + + let mut display = Display1in54::default(); + let mut epd = Epd1in54::new(&mut spi_dev, busy_in, dc, reset, &mut Delay, None).unwrap(); + + epd.clear_frame(&mut spi_dev, &mut Delay).unwrap(); + epd.display_frame(&mut spi_dev, &mut Delay).unwrap(); + Timer::after(Duration::from_secs(2)).await; + + display.clear(Color::White).unwrap(); + epd.update_and_display_frame(&mut spi_dev, display.buffer(), &mut Delay) + .unwrap(); + + Timer::after(Duration::from_secs(2)).await; + + draw_text(&mut display, "impl Rust for ESP32", 3, 100); + + epd.update_and_display_frame(&mut spi_dev, display.buffer(), &mut Delay) + .unwrap(); + Timer::after(Duration::from_secs(5)).await; + + epd.sleep(&mut spi_dev, &mut Delay).unwrap(); + + loop { + info!("Hello world!"); + Timer::after(Duration::from_secs(60)).await; + } +} + +fn draw_text(display: &mut Display1in54, text: &str, x: i32, y: i32) { + let text_style = MonoTextStyleBuilder::new() + .font(&FONT_10X20) + .text_color(Color::Black) + .build(); + + Text::with_baseline(text, Point::new(x, y), text_style, Baseline::Top) + .draw(display) + .unwrap(); +} 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] diff --git a/tests/hello_test.rs b/tests/hello_test.rs new file mode 100644 index 0000000..2dea361 --- /dev/null +++ b/tests/hello_test.rs @@ -0,0 +1,31 @@ +//! Demo test suite using embedded-test +//! +//! You can run this using `cargo test` as usual. + +#![no_std] +#![no_main] + +#[cfg(test)] +#[embedded_test::tests(executor = esp_hal_embassy::Executor::new())] +mod tests { + use defmt::assert_eq; + use esp_hal::timer::timg::TimerGroup; + + #[init] + fn init() { + let peripherals = esp_hal::init(esp_hal::Config::default()); + + let timer0 = TimerGroup::new(peripherals.TIMG1); + esp_hal_embassy::init(timer0.timer0); + + rtt_target::rtt_init_defmt!(); + } + + #[test] + async fn hello_test() { + defmt::info!("Running test!"); + + embassy_time::Timer::after(embassy_time::Duration::from_millis(100)).await; + assert_eq!(1 + 1, 2); + } +} diff --git a/wokwi.toml b/wokwi.toml new file mode 100644 index 0000000..c997fd8 --- /dev/null +++ b/wokwi.toml @@ -0,0 +1,5 @@ +[wokwi] +version = 1 +gdbServerPort = 3333 +elf = "target/xtensa-esp32-none-elf/debug/e-ink-hello" +firmware = "target/xtensa-esp32-none-elf/debug/e-ink-hello"