Initial commit

src/main.rs

@@ -0,0 +1,115 @@
+#![no_main]
+#![no_std]
+
+use cortex_m_rt::entry;
+use embedded_graphics::{Drawable, mono_font::{MonoTextStyle, ascii::FONT_10X20}, pixelcolor::Rgb565, prelude::*, primitives::{Polyline, PrimitiveStyle, Rectangle, StyledDrawable}, text::{Alignment, Text}};
+use embedded_hal::{delay::DelayNs, digital::{InputPin, OutputPin}};
+use embedded_hal_bus::spi::ExclusiveDevice;
+use microbit::Board;
+use mipidsi::{Builder, interface::SpiInterface, models, options::{ColorInversion, Orientation, TearingEffect}};
+use nrf52833_hal::{Timer, gpio::Level, spi::{self, Spi}, spim};
+use panic_rtt_target as _;
+use rtt_target::rtt_init_print;
+
+#[entry]
+fn main() -> ! {
+    rtt_init_print!();
+    let board = Board::take().unwrap();
+
+    let mut button_a = board.buttons.button_a;
+    let mut button_b = board.buttons.button_b;
+
+    let mut timer0 = Timer::new(board.TIMER0);
+    let mut timer1 = Timer::new(board.TIMER1);
+
+    let scl = board.edge.e08.into_push_pull_output(Level::Low);
+    let sda = board.edge.e09.into_push_pull_output(Level::Low);
+    let mut res = board.pins.p0_17.into_push_pull_output(Level::High);
+    let dc = board.pins.p0_01.into_push_pull_output(Level::Low);
+    let cs = board.pins.p0_13.into_push_pull_output(Level::Low);
+    let mut bl = board.edge.e16.into_push_pull_output(Level::High);
+
+    res.set_high();
+    bl.set_high();
+    
+    let spi_pins = spi::Pins {
+        sck: Some(scl.degrade()),
+        mosi: Some(sda.degrade()),
+        miso: None,
+    };
+
+    let bus = Spi::new(board.SPI0, spi_pins, spi::Frequency::M8, spim::MODE_3);
+    let spi = ExclusiveDevice::new(bus, cs, &mut timer0).unwrap();
+    
+    let mut buffer = [0u8; 512];
+
+    let interface = SpiInterface::new(spi, dc, &mut buffer);
+    
+    let mut display = Builder::new(models::ST7789, interface)
+        .display_size(240, 320)
+        .invert_colors(ColorInversion::Inverted)
+        .reset_pin(res)
+        .orientation(Orientation::new().flip_vertical().flip_horizontal())
+        .init(&mut timer1).unwrap();
+
+    display.set_tearing_effect(TearingEffect::HorizontalAndVertical);
+
+    display.clear(Rgb565::BLACK).unwrap();
+    display.fill_solid(&Rectangle::with_center(Point::new(32, 32), Size::new(16, 16)), Rgb565::GREEN);
+    display.fill_solid(&Rectangle::with_center(Point::new(240-32, 32), Size::new(16, 16)), Rgb565::BLUE);
+    display.fill_solid(&Rectangle::with_center(Point::new(240-32, 320-32), Size::new(16, 16)), Rgb565::RED);
+    display.fill_solid(&Rectangle::with_center(Point::new(32, 320-32), Size::new(16, 16)), Rgb565::YELLOW);
+
+    let points = [
+        Point::new(0, 0),
+        Point::new(239, 0),
+        Point::new(239, 319),
+        Point::new(0, 319),
+        Point::new(0, 0),
+    ];
+
+    let line_style = PrimitiveStyle::with_stroke(Rgb565::WHITE, 1);
+
+    let text_style = MonoTextStyle::new(&FONT_10X20, Rgb565::WHITE);
+
+    Text::with_alignment("Hello, gryadki!", Point::new(120, 38), text_style, Alignment::Center).draw(&mut display).unwrap();
+
+    Polyline::new(&points)
+        .into_styled(line_style)
+        .draw(&mut display);
+
+    let mut rectangle = Rectangle::new(
+        Point::new(120-8, 200),
+        Size::new(16, 8),
+    );
+
+    let speed = 4;
+    let update_size = Size::new(speed as u32, 8);
+    let (min_x, max_x) = (1, 239-16);
+
+    let clean_style = PrimitiveStyle::with_fill(Rgb565::BLACK);
+    let player_style = PrimitiveStyle::with_fill(Rgb565::CYAN);
+
+    loop {
+        if button_a.is_low().unwrap() {
+            Rectangle::new(rectangle.top_left, update_size).draw_styled(&clean_style, &mut display);
+            rectangle.translate_mut(Point::new(speed, 0));
+        }
+
+        if button_b.is_low().unwrap() {
+            Rectangle::new(
+                Point::new(
+                    rectangle.top_left.x + rectangle.size.width as i32 - speed,
+                    rectangle.top_left.y,
+                ),
+                update_size,
+            ).draw_styled(&clean_style, &mut display);
+            rectangle.translate_mut(Point::new(-speed, 0));
+        }
+
+        rectangle.top_left.x = rectangle.top_left.x.clamp(min_x, max_x);
+
+        rectangle.draw_styled(&player_style, &mut display);
+        timer1.delay_ms(33);
+    }
+}