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-rw-r--r--examples/nrf/src/bin/pwm_sequence_ws2812b.rs9
1 files changed, 2 insertions, 7 deletions
diff --git a/examples/nrf/src/bin/pwm_sequence_ws2812b.rs b/examples/nrf/src/bin/pwm_sequence_ws2812b.rs
index 7706f91da..310842d8d 100644
--- a/examples/nrf/src/bin/pwm_sequence_ws2812b.rs
+++ b/examples/nrf/src/bin/pwm_sequence_ws2812b.rs
@@ -7,12 +7,11 @@ mod example_common;
7use defmt::*; 7use defmt::*;
8use embassy::executor::Spawner; 8use embassy::executor::Spawner;
9use embassy::time::{Duration, Timer}; 9use embassy::time::{Duration, Timer};
10use embassy::util::Forever;
11use embassy_nrf::gpio::NoPin; 10use embassy_nrf::gpio::NoPin;
12use embassy_nrf::pwm::{ 11use embassy_nrf::pwm::{
13 Config, Prescaler, Sequence, SequenceConfig, SequenceLoad, SequenceMode, SequencePwm, Sequences, 12 Config, Prescaler, Sequence, SequenceConfig, SequenceLoad, SequenceMode, SequencePwm, Sequences,
14}; 13};
15use embassy_nrf::{peripherals, Peripherals}; 14use embassy_nrf::Peripherals;
16 15
17// WS2812B LED light demonstration. Drives just one light. 16// WS2812B LED light demonstration. Drives just one light.
18// The following reference on WS2812B may be of use: 17// The following reference on WS2812B may be of use:
@@ -27,8 +26,6 @@ const T1H: u16 = 0x8000 | 13; // Duty = 13/20 ticks (0.8us/1.25us) for a 1
27const T0H: u16 = 0x8000 | 7; // Duty 7/20 ticks (0.4us/1.25us) for a 0 26const T0H: u16 = 0x8000 | 7; // Duty 7/20 ticks (0.4us/1.25us) for a 0
28const RES: u16 = 0x8000; 27const RES: u16 = 0x8000;
29 28
30static PWM: Forever<SequencePwm<peripherals::PWM0>> = Forever::new();
31
32// Provides data to a WS2812b (Neopixel) LED and makes it go blue. The data 29// Provides data to a WS2812b (Neopixel) LED and makes it go blue. The data
33// line is assumed to be P1_05. 30// line is assumed to be P1_05.
34#[embassy::main] 31#[embassy::main]
@@ -37,12 +34,10 @@ async fn main(_spawner: Spawner, p: Peripherals) {
37 config.sequence_load = SequenceLoad::Common; 34 config.sequence_load = SequenceLoad::Common;
38 config.prescaler = Prescaler::Div1; 35 config.prescaler = Prescaler::Div1;
39 config.max_duty = 20; // 1.25us (1s / 16Mhz * 20) 36 config.max_duty = 20; // 1.25us (1s / 16Mhz * 20)
40 let pwm = unwrap!(SequencePwm::new( 37 let mut pwm = unwrap!(SequencePwm::new(
41 p.PWM0, p.P1_05, NoPin, NoPin, NoPin, config, 38 p.PWM0, p.P1_05, NoPin, NoPin, NoPin, config,
42 )); 39 ));
43 40
44 let mut pwm = PWM.put(pwm);
45
46 // Declare the bits of 24 bits in a buffer we'll be 41 // Declare the bits of 24 bits in a buffer we'll be
47 // mutating later. 42 // mutating later.
48 let mut seq_words = [ 43 let mut seq_words = [