mirror of
https://github.com/slint-ui/slint.git
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93a0c5bc60
This bundles all the board specific code in the mcu crate. There's much to do though, so this is just a rough start and when it's all done we should probably squash this. Since the mcu crate dependencies require nightly and our CI builds with stable, this removes the mcu backend from the default build and the ci.
87 lines
2.4 KiB
Rust
87 lines
2.4 KiB
Rust
// Copyright © SixtyFPS GmbH <info@sixtyfps.io>
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// SPDX-License-Identifier: (GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
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use embedded_time::rate::*;
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use rp_pico::hal;
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use rp_pico::hal::pac;
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use rp_pico::hal::prelude::*;
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use embedded_hal::digital::v2::OutputPin;
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pub use cortex_m_rt::entry;
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use defmt_rtt as _; // global logger
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use panic_probe as _;
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#[alloc_error_handler]
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fn oom(_: core::alloc::Layout) -> ! {
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loop {}
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}
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use alloc_cortex_m::CortexMHeap;
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const HEAP_SIZE: usize = 128 * 1024;
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static mut HEAP: [u8; HEAP_SIZE] = [0; HEAP_SIZE];
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#[global_allocator]
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static ALLOCATOR: CortexMHeap = CortexMHeap::empty();
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pub fn init_board() {
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let mut pac = pac::Peripherals::take().unwrap();
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let core = pac::CorePeripherals::take().unwrap();
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let mut watchdog = hal::watchdog::Watchdog::new(pac.WATCHDOG);
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let clocks = hal::clocks::init_clocks_and_plls(
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rp_pico::XOSC_CRYSTAL_FREQ,
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pac.XOSC,
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pac.CLOCKS,
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pac.PLL_SYS,
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pac.PLL_USB,
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&mut pac.RESETS,
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&mut watchdog,
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)
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.ok()
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.unwrap();
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let mut delay = cortex_m::delay::Delay::new(core.SYST, clocks.system_clock.freq().integer());
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let sio = hal::sio::Sio::new(pac.SIO);
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let pins = rp_pico::Pins::new(pac.IO_BANK0, pac.PADS_BANK0, sio.gpio_bank0, &mut pac.RESETS);
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let _spi_sclk = pins.gpio10.into_mode::<hal::gpio::FunctionSpi>();
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let _spi_mosi = pins.gpio11.into_mode::<hal::gpio::FunctionSpi>();
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let _spi_miso = pins.gpio12.into_mode::<hal::gpio::FunctionSpi>();
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let spi = hal::spi::Spi::<_, _, 8>::new(pac.SPI1);
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let spi = spi.init(
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&mut pac.RESETS,
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clocks.peripheral_clock.freq(),
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4_000_000u32.Hz(),
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&embedded_hal::spi::MODE_3,
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);
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let rst = pins.gpio15.into_push_pull_output();
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let dc = pins.gpio8.into_push_pull_output();
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let cs = pins.gpio9.into_push_pull_output();
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let di = display_interface_spi::SPIInterface::new(spi, dc, cs);
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let mut display = st7789::ST7789::new(di, rst, 320, 240);
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// Turn on backlight
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{
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let mut bl = pins.gpio13.into_push_pull_output();
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bl.set_low().unwrap();
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delay.delay_us(10_000);
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bl.set_high().unwrap();
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}
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unsafe { ALLOCATOR.init(&mut HEAP as *const u8 as usize, core::mem::size_of_val(&HEAP)) }
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display.init(&mut delay).unwrap();
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display.set_orientation(st7789::Orientation::Landscape).unwrap();
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crate::init_with_display(display);
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}
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