initial working version of ili9341 disp

src/bin/main.rs

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+#![no_std]
+#![no_main]
+#![deny(
+    clippy::mem_forget,
+    reason = "mem::forget is generally not safe to do with esp_hal types, especially those \
+    holding buffers for the duration of a data transfer."
+)]
+#![deny(clippy::large_stack_frames)]
+
+use display_interface_spi::SPIInterface;
+use embedded_graphics::Drawable;
+use embedded_graphics::mono_font::MonoTextStyle;
+use embedded_graphics::mono_font::ascii::FONT_6X10;
+use embedded_graphics::pixelcolor::Rgb565;
+use embedded_graphics::prelude::Point;
+use embedded_graphics::prelude::RgbColor;
+use embedded_graphics::text::Text;
+use embedded_graphics_core::draw_target::DrawTarget;
+use embedded_hal_bus::spi::ExclusiveDevice;
+use esp_hal::clock::CpuClock;
+use esp_hal::delay::Delay;
+use esp_hal::gpio::Level;
+use esp_hal::gpio::Output;
+use esp_hal::gpio::OutputConfig;
+use esp_hal::main;
+use esp_hal::spi::{
+    Mode,
+    master::{Config, Spi},
+};
+use esp_hal::time::Rate;
+use esp_hal::time::{Duration, Instant};
+use esp_hal::timer::timg::TimerGroup;
+use ili9341::Ili9341;
+use ili9341::Orientation;
+use log::{error, info};
+
+#[panic_handler]
+fn panic(panic_info: &core::panic::PanicInfo) -> ! {
+    error!("{}", panic_info);
+    loop {}
+}
+
+extern crate alloc;
+
+// This creates a default app-descriptor required by the esp-idf bootloader.
+// For more information see: <https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/system/app_image_format.html#application-description>
+esp_bootloader_esp_idf::esp_app_desc!();
+
+#[allow(
+    clippy::large_stack_frames,
+    reason = "it's not unusual to allocate larger buffers etc. in main"
+)]
+#[main]
+fn main() -> ! {
+    // generator version: 1.3.0
+    // generator parameters: --chip esp32s3 -o esp32s3-wroom-1-octal-psram -o unstable-hal -o alloc -o wifi -o log -o wokwi -o neovim -o vscode -o esp
+
+    esp_println::logger::init_logger_from_env();
+
+    let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max());
+    let peripherals = esp_hal::init(config);
+
+    // The following pins are used to bootstrap the chip. They are available
+    // for use, but check the datasheet of the module for more information on them.
+    // - GPIO0
+    // - GPIO3
+    // - GPIO45
+    // - GPIO46
+    // These GPIO pins are in use by some feature of the module and should not be used.
+    let _ = peripherals.GPIO27;
+    let _ = peripherals.GPIO28;
+    let _ = peripherals.GPIO29;
+    let _ = peripherals.GPIO30;
+    let _ = peripherals.GPIO31;
+    let _ = peripherals.GPIO32;
+    let _ = peripherals.GPIO33;
+    let _ = peripherals.GPIO34;
+    let _ = peripherals.GPIO35;
+    let _ = peripherals.GPIO36;
+    let _ = peripherals.GPIO37;
+
+    esp_alloc::heap_allocator!(#[esp_hal::ram(reclaimed)] size: 73744);
+
+    let timg0 = TimerGroup::new(peripherals.TIMG0);
+    let sw_interrupt =
+        esp_hal::interrupt::software::SoftwareInterruptControl::new(peripherals.SW_INTERRUPT);
+    esp_rtos::start(timg0.timer0, sw_interrupt.software_interrupt0);
+    let (mut _wifi_controller, _interfaces) =
+        esp_radio::wifi::new(peripherals.WIFI, Default::default())
+            .expect("Failed to initialize Wi-Fi controller");
+
+    let spi_bus = Spi::new(
+        peripherals.SPI2,
+        Config::default()
+            .with_frequency(Rate::from_khz(100))
+            .with_mode(Mode::_0),
+    )
+    .unwrap()
+    .with_sck(peripherals.GPIO36)
+    .with_mosi(peripherals.GPIO35)
+    .with_miso(peripherals.GPIO37);
+
+    let cs_main = Output::new(peripherals.GPIO11, Level::High, OutputConfig::default());
+
+    let mut delay = Delay::new();
+    let spi_dev = ExclusiveDevice::new(spi_bus, cs_main, delay).unwrap();
+    let reset_main = Output::new(peripherals.GPIO10, Level::High, OutputConfig::default());
+    let spi_dc = Output::new(peripherals.GPIO12, Level::High, OutputConfig::default());
+    let iface = SPIInterface::new(spi_dev, spi_dc);
+
+    let mut display = Ili9341::new(
+        iface,
+        reset_main,
+        &mut delay,
+        Orientation::Landscape,
+        ili9341::DisplaySize240x320,
+    )
+    .unwrap();
+
+    display.clear(Rgb565::BLACK).unwrap();
+
+    let style = MonoTextStyle::new(&FONT_6X10, Rgb565::WHITE);
+    Text::new("Hello, ESP32!", Point::new(20, 100), style)
+        .draw(&mut display)
+        .unwrap();
+
+    loop {
+        info!("Hello world!");
+        let delay_start = Instant::now();
+        while delay_start.elapsed() < Duration::from_millis(500) {}
+    }
+
+    // for inspiration have a look at the examples at https://github.com/esp-rs/esp-hal/tree/esp-hal-v1.1.0/examples
+}

src/lib.rs

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+#![no_std]