62 lines
1.4 KiB
Rust
62 lines
1.4 KiB
Rust
#![no_std]
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#![no_main]
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use atmega_hal::{
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pins,
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spi::{DataOrder, SerialClockRate, Settings, Spi},
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Peripherals,
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};
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use avr_device::interrupt;
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use embedded_hal::spi::{Mode, Phase, Polarity};
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use panic_halt as _;
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#[atmega_hal::entry]
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fn main() -> ! {
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// Disable interrupts when initializing
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interrupt::disable();
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// Get peripherals and pins
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let dp = Peripherals::take().unwrap();
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let pins = pins!(dp);
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// Init display backlight
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let tc0 = dp.TC0;
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tc0.tccr0a.write(|w| {
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w.wgm0().pwm_fast();
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w.com0b().match_clear();
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w
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});
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tc0.tccr0b.write(|w| {
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w.wgm02().set_bit();
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w.cs0().prescale_64();
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w
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});
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tc0.ocr0a.write(|w| unsafe { w.bits(255) });
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// TODO: Use EEPROM
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tc0.ocr0b.write(|w| unsafe { w.bits(0) });
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pins.pd5.into_output();
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// Init SPI
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let (_, _) = Spi::new(
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dp.SPI,
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pins.pb5.into_output(),
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pins.pb3.into_output(),
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pins.pb4.into_pull_up_input(),
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pins.pb2.into_output(),
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Settings {
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data_order: DataOrder::MostSignificantFirst,
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clock: SerialClockRate::OscfOver2,
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mode: Mode {
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polarity: Polarity::IdleLow,
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phase: Phase::CaptureOnFirstTransition,
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},
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},
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);
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// Enable interrupts
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unsafe { interrupt::enable() };
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#[allow(clippy::empty_loop)]
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loop {}
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}
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