From a44ee963ef65be41a9354b4e7e70b02d30fadd70 Mon Sep 17 00:00:00 2001 From: Ulf Lilleengen Date: Tue, 18 Jun 2024 13:00:28 +0200 Subject: add HAL and example for using nRF EGU peripheral --- examples/nrf52840/src/bin/egu.rs | 55 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 examples/nrf52840/src/bin/egu.rs (limited to 'examples') diff --git a/examples/nrf52840/src/bin/egu.rs b/examples/nrf52840/src/bin/egu.rs new file mode 100644 index 000000000..df96f7e56 --- /dev/null +++ b/examples/nrf52840/src/bin/egu.rs @@ -0,0 +1,55 @@ +//! This example shows the use of the EGU peripheral combined with PPI. +//! +//! It chains events from button -> egu0-trigger0 -> egu0-trigger1 -> led +#![no_std] +#![no_main] + +use embassy_executor::Spawner; +use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull}; +use embassy_nrf::gpiote::{InputChannel, InputChannelPolarity, OutputChannel, OutputChannelPolarity}; +use embassy_nrf::peripherals::{PPI_CH0, PPI_CH1, PPI_CH2}; +use embassy_nrf::ppi::Ppi; +use embassy_nrf::egu::{Egu, TriggerNumber}; +use embassy_time::{Duration, Timer}; +use {defmt_rtt as _, panic_probe as _}; + +#[embassy_executor::main] +async fn main(_spawner: Spawner) { + let p = embassy_nrf::init(Default::default()); + + let led1 = Output::new(p.P0_13, Level::High, OutputDrive::Standard); + let btn1 = Input::new(p.P0_11, Pull::Up); + + let mut egu1 = Egu::new(p.EGU0); + let led1 = OutputChannel::new(p.GPIOTE_CH0, led1, OutputChannelPolarity::Toggle); + let btn1 = InputChannel::new(p.GPIOTE_CH1, btn1, InputChannelPolarity::LoToHi); + + let trigger0 = egu1.trigger(TriggerNumber::Trigger0); + let trigger1 = egu1.trigger(TriggerNumber::Trigger1); + + let mut ppi1: Ppi = Ppi::new_one_to_one( + p.PPI_CH0, + btn1.event_in(), + trigger0.task(), + ); + ppi1.enable(); + + let mut ppi2: Ppi = Ppi::new_one_to_one( + p.PPI_CH1, + trigger0.event(), + trigger1.task(), + ); + ppi2.enable(); + + let mut ppi3: Ppi = Ppi::new_one_to_one( + p.PPI_CH2, + trigger1.event(), + led1.task_out(), + ); + ppi3.enable(); + + defmt::info!("Push the button to toggle the LED"); + loop { + Timer::after(Duration::from_secs(60)).await; + } +} -- cgit From 91476eea12998aa3a622710962e0d1b0f60819e1 Mon Sep 17 00:00:00 2001 From: Ulf Lilleengen Date: Tue, 18 Jun 2024 13:22:38 +0200 Subject: cargo fmt --- examples/nrf52840/src/bin/egu.rs | 20 ++++---------------- 1 file changed, 4 insertions(+), 16 deletions(-) (limited to 'examples') diff --git a/examples/nrf52840/src/bin/egu.rs b/examples/nrf52840/src/bin/egu.rs index df96f7e56..8bf712697 100644 --- a/examples/nrf52840/src/bin/egu.rs +++ b/examples/nrf52840/src/bin/egu.rs @@ -5,11 +5,11 @@ #![no_main] use embassy_executor::Spawner; +use embassy_nrf::egu::{Egu, TriggerNumber}; use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull}; use embassy_nrf::gpiote::{InputChannel, InputChannelPolarity, OutputChannel, OutputChannelPolarity}; use embassy_nrf::peripherals::{PPI_CH0, PPI_CH1, PPI_CH2}; use embassy_nrf::ppi::Ppi; -use embassy_nrf::egu::{Egu, TriggerNumber}; use embassy_time::{Duration, Timer}; use {defmt_rtt as _, panic_probe as _}; @@ -27,25 +27,13 @@ async fn main(_spawner: Spawner) { let trigger0 = egu1.trigger(TriggerNumber::Trigger0); let trigger1 = egu1.trigger(TriggerNumber::Trigger1); - let mut ppi1: Ppi = Ppi::new_one_to_one( - p.PPI_CH0, - btn1.event_in(), - trigger0.task(), - ); + let mut ppi1: Ppi = Ppi::new_one_to_one(p.PPI_CH0, btn1.event_in(), trigger0.task()); ppi1.enable(); - let mut ppi2: Ppi = Ppi::new_one_to_one( - p.PPI_CH1, - trigger0.event(), - trigger1.task(), - ); + let mut ppi2: Ppi = Ppi::new_one_to_one(p.PPI_CH1, trigger0.event(), trigger1.task()); ppi2.enable(); - let mut ppi3: Ppi = Ppi::new_one_to_one( - p.PPI_CH2, - trigger1.event(), - led1.task_out(), - ); + let mut ppi3: Ppi = Ppi::new_one_to_one(p.PPI_CH2, trigger1.event(), led1.task_out()); ppi3.enable(); defmt::info!("Push the button to toggle the LED"); -- cgit