embassy/examples/rp/src/bin/gpout.rs

39 lines
1.0 KiB
Rust

//! This example shows how GPOUT (General purpose clock outputs) can toggle a output pin.
//!
//! The LED on the RP Pico W board is connected differently. Add a LED and resistor to another pin.
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::*;
use embassy_executor::Spawner;
use embassy_rp::clocks;
use embassy_time::Timer;
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_rp::init(Default::default());
let gpout3 = clocks::Gpout::new(p.PIN_25);
gpout3.set_div(1000, 0);
gpout3.enable();
loop {
gpout3.set_src(clocks::GpoutSrc::Sys);
info!(
"Pin 25 is now outputing CLK_SYS/1000, should be toggling at {}",
gpout3.get_freq()
);
Timer::after_secs(2).await;
gpout3.set_src(clocks::GpoutSrc::Ref);
info!(
"Pin 25 is now outputing CLK_REF/1000, should be toggling at {}",
gpout3.get_freq()
);
Timer::after_secs(2).await;
}
}