embassy/examples/nrf/src/bin/ppi.rs
2021-06-02 01:32:19 +02:00

88 lines
2.4 KiB
Rust

#![no_std]
#![no_main]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#![feature(type_alias_impl_trait)]
#![allow(incomplete_features)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::*;
use core::future::pending;
use defmt::panic;
use embassy::executor::Spawner;
use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pull};
use embassy_nrf::gpiote::{self, InputChannel, InputChannelPolarity};
use embassy_nrf::ppi::Ppi;
use embassy_nrf::{interrupt, Peripherals};
use gpiote::{OutputChannel, OutputChannelPolarity};
#[embassy::main]
async fn main(_spawner: Spawner, p: Peripherals) {
info!("Starting!");
let button1 = InputChannel::new(
p.GPIOTE_CH0,
Input::new(p.P0_11, Pull::Up),
InputChannelPolarity::HiToLo,
);
let button2 = InputChannel::new(
p.GPIOTE_CH1,
Input::new(p.P0_12, Pull::Up),
InputChannelPolarity::HiToLo,
);
let button3 = InputChannel::new(
p.GPIOTE_CH2,
Input::new(p.P0_24, Pull::Up),
InputChannelPolarity::HiToLo,
);
let button4 = InputChannel::new(
p.GPIOTE_CH3,
Input::new(p.P0_25, Pull::Up),
InputChannelPolarity::HiToLo,
);
let led1 = OutputChannel::new(
p.GPIOTE_CH4,
Output::new(p.P0_13, Level::Low, OutputDrive::Standard),
OutputChannelPolarity::Toggle,
);
let led2 = OutputChannel::new(
p.GPIOTE_CH5,
Output::new(p.P0_14, Level::Low, OutputDrive::Standard),
OutputChannelPolarity::Toggle,
);
let mut ppi = Ppi::new(p.PPI_CH0);
ppi.set_event(button1.event_in());
ppi.set_task(led1.task_out());
ppi.enable();
let mut ppi = Ppi::new(p.PPI_CH1);
ppi.set_event(button2.event_in());
ppi.set_task(led1.task_clr());
ppi.enable();
let mut ppi = Ppi::new(p.PPI_CH2);
ppi.set_event(button3.event_in());
ppi.set_task(led1.task_set());
ppi.enable();
let mut ppi = Ppi::new(p.PPI_CH3);
ppi.set_event(button4.event_in());
ppi.set_task(led1.task_out());
ppi.set_fork_task(led2.task_out());
ppi.enable();
info!("PPI setup!");
info!("Press button 1 to toggle LED 1");
info!("Press button 2 to turn on LED 1");
info!("Press button 3 to turn off LED 1");
info!("Press button 4 to toggle LEDs 1 and 2");
// Block forever so the above drivers don't get dropped
pending::<()>().await;
}