32 lines
890 B
Rust
32 lines
890 B
Rust
//! This example shows how to use the PWM module to measure the frequency of an input signal.
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#![no_std]
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#![no_main]
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use defmt::*;
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use embassy_executor::Spawner;
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use embassy_rp::block::ImageDef;
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use embassy_rp::gpio::Pull;
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use embassy_rp::pwm::{Config, InputMode, Pwm};
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use embassy_time::{Duration, Ticker};
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use {defmt_rtt as _, panic_probe as _};
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#[link_section = ".start_block"]
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#[used]
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pub static IMAGE_DEF: ImageDef = ImageDef::secure_exe();
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#[embassy_executor::main]
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async fn main(_spawner: Spawner) {
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let p = embassy_rp::init(Default::default());
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let cfg: Config = Default::default();
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let pwm = Pwm::new_input(p.PWM_SLICE2, p.PIN_5, Pull::None, InputMode::RisingEdge, cfg);
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let mut ticker = Ticker::every(Duration::from_secs(1));
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loop {
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info!("Input frequency: {} Hz", pwm.counter());
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pwm.set_counter(0);
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ticker.next().await;
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}
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}
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