mirror of
https://github.com/italicsjenga/rp-hal-boards.git
synced 2024-10-17 22:41:30 +11:00
2c3a0956fa
Sorry this is a large commit :( This adds support for input pins, including pulling them high or low. It also adds two examples: the start of a classic blinky LED example, and an example for reading input.
37 lines
979 B
Rust
37 lines
979 B
Rust
//! Toggle LED based on GPIO input
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//!
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//! This will control an LED on GP25 based on a button hooked up to GP15. The button should be tied
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//! to ground, as the input pin is pulled high internally by this example. When the button is
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//! pressed, the LED will turn off.
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#![no_std]
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#![no_main]
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use panic_halt as _;
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use cortex_m_rt::entry;
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#[link_section = ".boot2"]
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#[used]
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pub static BOOT2: [u8; 256] = rp2040_boot2::BOOT_LOADER;
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use embedded_hal::digital::v2::{InputPin, OutputPin};
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use rp2040_hal::prelude::*;
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#[entry]
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fn main() -> ! {
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let mut pac = rp2040_pac::Peripherals::take().unwrap();
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let pins = pac.IO_BANK0.split(pac.PADS_BANK0, pac.SIO, &mut pac.RESETS);
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let mut led_pin = pins.gpio25.into_output();
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let mut button_pin = pins.gpio15.into_input();
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button_pin.pull_high();
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loop {
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if button_pin.is_high().unwrap() {
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led_pin.set_high().unwrap();
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} else {
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led_pin.set_low().unwrap();
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}
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}
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}
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