276 lines
5.8 KiB
Rust
276 lines
5.8 KiB
Rust
#![no_std]
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#![no_main]
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// pick a panicking behavior
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extern crate panic_halt; // you can put a breakpoint on `rust_begin_unwind` to catch panics
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// extern crate panic_abort; // requires nightly
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// extern crate panic_itm; // logs messages over ITM; requires ITM support
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// extern crate panic_semihosting; // logs messages to the host stderr; requires a debugger
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use metro_m0 as hal;
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use cortex_m::asm;
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use embedded_hal;
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use hal::clock::GenericClockController;
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use hal::delay::Delay;
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use hal::entry;
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use hal::pac::{CorePeripherals, Peripherals};
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use hal::prelude::*;
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macro_rules! write_rgb_zero {
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($pin:expr, $delay:expr) => {
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$pin.set_high().unwrap();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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$pin.set_low().unwrap();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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// 12
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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// 24
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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// 36
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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};
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}
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macro_rules! write_rgb_one {
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($pin:expr, $delay:expr) => {
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$pin.set_high().unwrap();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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$pin.set_low().unwrap();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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asm::nop();
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};
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}
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// #[proc_macro]
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// pub fn write_rgb(item: TokenStream) -> TokenStream {
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// item
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// }
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// macro_rules! write_rgb {
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// ($pin:expr, $delay:expr, $uint8:expr) => {
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// for i in (0..8).rev() {
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// if ($uint8 >> i) & 1 == 1 {
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// write_rgb_one!($pin, $delay);
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// } else {
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// write_rgb_zero!($pin, $delay);
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// }
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// }
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// };
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// }
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#[entry]
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fn main() -> ! {
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let mut peripherals = Peripherals::take().unwrap();
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let core = CorePeripherals::take().unwrap();
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let mut clocks = GenericClockController::with_external_32kosc(
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peripherals.GCLK,
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&mut peripherals.PM,
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&mut peripherals.SYSCTRL,
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&mut peripherals.NVMCTRL,
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);
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let mut pins = hal::Pins::new(peripherals.PORT);
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let mut red_led = pins.d13.into_push_pull_output(&mut pins.port);
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let mut assert_pin = pins.d12.into_push_pull_output(&mut pins.port);
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let switch = pins.d3.into_pull_down_input(&mut pins.port);
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let mut rgb_meme = pins.neopixel.into_push_pull_output(&mut pins.port);
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let mut delay = Delay::new(core.SYST, &mut clocks);
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loop {
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delay.delay_us(255u8);
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assert_pin.set_high().unwrap();
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if switch.is_high().unwrap() {
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red_led.set_high().unwrap();
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} else {
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red_led.set_low().unwrap();
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}
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assert_pin.set_low().unwrap();
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lol(&mut rgb_meme, &mut delay);
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}
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}
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#[no_mangle]
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fn lol(
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pin: &mut metro_m0::gpio::Pa30<metro_m0::gpio::Output<metro_m0::gpio::PushPull>>,
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delay: &mut hal::delay::Delay,
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) {
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pin.set_low().unwrap();
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delay.delay_us(60u8);
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// write_rgb!(pin, delay, 10);
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// write_rgb!(pin, delay, 0);
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// write_rgb!(pin, delay, 0);
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// write_rgb!(pin, delay, 128);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_zero!(pin, delay);
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write_rgb_one!(pin, delay);
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}
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