From a4afab46403aacd7bb555cadaefad7f216fb9931 Mon Sep 17 00:00:00 2001 From: pbert Date: Sun, 10 Jul 2022 20:12:25 +0200 Subject: add support for pdm microphones in nrf driver --- examples/nrf/src/bin/pdm.rs | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 examples/nrf/src/bin/pdm.rs (limited to 'examples') diff --git a/examples/nrf/src/bin/pdm.rs b/examples/nrf/src/bin/pdm.rs new file mode 100644 index 000000000..7388580fb --- /dev/null +++ b/examples/nrf/src/bin/pdm.rs @@ -0,0 +1,33 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +use defmt::info; +use embassy_executor::Spawner; +use embassy_nrf::interrupt; +use embassy_nrf::pdm::{Config, Pdm}; +use embassy_time::{Duration, Timer}; +use {defmt_rtt as _, panic_probe as _}; + +#[embassy_executor::main] +async fn main(_p: Spawner) { + let p = embassy_nrf::init(Default::default()); + let config = Config::default(); + let mut pdm = Pdm::new(p.PDM, interrupt::take!(PDM), p.P0_01, p.P0_00, config); + + loop { + pdm.start().await; + + // wait some time till the microphon settled + Timer::after(Duration::from_millis(1000)).await; + + const SAMPLES: usize = 2048; + let mut buf = [0i16; SAMPLES]; + pdm.sample(&mut buf).await.unwrap(); + + info!("samples: {:?}", &buf); + + pdm.stop().await; + Timer::after(Duration::from_millis(100)).await; + } +} -- cgit