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Introduced the SingleSequencer and a more complex Sequencer

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This commit is contained in:
huntc
2022-02-04 19:11:15 +11:00
parent 9e36ede363
commit 965a5f2c3f
5 changed files with 134 additions and 68 deletions
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22
examples/nrf/src/bin/pwm_sequence.rs
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@ -9,14 +9,13 @@ use embassy::executor::Spawner;
use embassy::time::{Duration, Timer};
use embassy_nrf::gpio::NoPin;
use embassy_nrf::pwm::{
Config, Prescaler, Sequence, SequenceConfig, SequenceMode, SequencePwm, Sequences,
Config, Prescaler, Sequence, SequenceConfig, SequencePwm, SingleSequenceMode, SingleSequencer,
};
use embassy_nrf::Peripherals;
#[embassy::main]
async fn main(_spawner: Spawner, p: Peripherals) {
let seq_words_1: [u16; 5] = [1000, 250, 100, 50, 0];
let seq_words_2: [u16; 5] = [0, 50, 100, 250, 1000];
let seq_words: [u16; 5] = [1000, 250, 100, 50, 0];
let mut config = Config::default();
config.prescaler = Prescaler::Div128;
@ -32,20 +31,9 @@ async fn main(_spawner: Spawner, p: Peripherals) {
p.PWM0, p.P0_13, NoPin, NoPin, NoPin, config,
));
let sequence0 = Sequence::new(&seq_words_1, seq_config.clone());
let sequences = Sequences::new(&mut pwm, sequence0, None);
unwrap!(sequences.start(SequenceMode::Times(1)));
info!("pwm started!");
Timer::after(Duration::from_millis(20000)).await;
info!("pwm starting with another sequence!");
drop(sequences); // This stops the previous sequence and returns pwm ownership back
let sequence0 = Sequence::new(&seq_words_2, seq_config);
let sequences = Sequences::new(&mut pwm, sequence0, None);
unwrap!(sequences.start(SequenceMode::Times(1)));
let sequence = Sequence::new(&seq_words, seq_config.clone());
let sequencer = SingleSequencer::new(&mut pwm, sequence);
unwrap!(sequencer.start(SingleSequenceMode::Times(1)));
// we can abort a sequence if we need to before its complete with pwm.stop()
// or stop is also implicitly called when the pwm peripheral is dropped