gpio/
gpio.rs

1#![no_std]
2#![no_main]
3
4use core::panic::PanicInfo;
5
6use embedded_hal::digital::{InputPin, StatefulOutputPin};
7use hal_mik32::gpio::port_0::{Pin09, Pin10};
8use hal_mik32::gpio::{self, DriveStrength};
9use hal_mik32::rcc::RCC;
10
11// GPIO 0.10 - button input.
12// GPIO 0.9  - LED output.
13#[unsafe(no_mangle)]
14pub extern "C" fn main() -> ! {
15    let rcc_config = RCC::default();
16    RCC::init(&rcc_config).unwrap();
17    let _gpio0 = gpio::init_port::<0>();
18
19    let mut led_pin = Pin09::new()
20        .into_output()
21        .with_drive_strength(DriveStrength::Ma8);
22    let mut button_pin = Pin10::new().into_pull_down_input();
23    let mut button_was_pressed = false;
24
25    loop {
26        let button_is_pressed = button_pin.is_high().unwrap();
27
28        if button_is_pressed && !button_was_pressed {
29            let _ = led_pin.toggle();
30        }
31
32        button_was_pressed = button_is_pressed;
33        delay(10_000);
34    }
35}
36
37#[inline(always)]
38fn delay(spins: u32) {
39    for _ in 0..spins {
40        core::hint::spin_loop();
41    }
42}
43
44#[panic_handler]
45fn panic(_info: &PanicInfo) -> ! {
46    loop {
47        core::hint::spin_loop();
48    }
49}
50
51#[unsafe(no_mangle)]
52#[inline(never)]
53pub extern "C" fn trap_handler() {
54    loop {
55        core::hint::spin_loop();
56    }
57}
gpio/gpio.rs

gpio/
gpio.rs
