mirror of
https://github.com/italicsjenga/rp-hal-boards.git
synced 2024-10-17 22:41:30 +11:00
ffa97842e2
* Improve clock frequency stuff for uninitialized clocks - Made clocks singletons so the frequency handling actually works as expected - Added initial frequencies - Improved the docs - Added a Clock trait * Add pico examples. These have the benefit of knowing which external crystal is attached. Even though it always should be a 12 MHz crystal. Thus we can setup the clocks properly I also changed the rp2040 examples to work out of the box for pico boards since that will probably be used most of the time
42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
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 cortex_m_rt::entry;
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use embedded_hal::digital::v2::{InputPin, OutputPin};
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use hal::pac;
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use hal::sio::Sio;
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use panic_halt as _;
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use rp2040_hal as hal;
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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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#[entry]
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fn main() -> ! {
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let mut pac = pac::Peripherals::take().unwrap();
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let sio = Sio::new(pac.SIO);
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let pins = hal::gpio::Pins::new(
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pac.IO_BANK0,
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pac.PADS_BANK0,
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sio.gpio_bank0,
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&mut pac.RESETS,
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);
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let mut led_pin = pins.gpio25.into_push_pull_output();
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let button_pin = pins.gpio23.into_pull_down_input();
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loop {
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if button_pin.is_low().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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