storing before actually doing interrupt LED toggle

test_LED_pwm/src/bin/main.rs

@@ -0,0 +1,76 @@
+#![no_std]
+#![no_main]
+#![deny(
+    clippy::mem_forget,
+    reason = "mem::forget is generally not safe to do with esp_hal types, especially those \
+    holding buffers for the duration of a data transfer."
+)]
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Timer};
+use esp_backtrace as _;
+use esp_hal::clock::CpuClock;
+use esp_hal::timer::timg::TimerGroup;
+use esp_hal::ledc::{Ledc, LowSpeed, LSGlobalClkSource};
+use esp_hal::ledc::channel::{self, ChannelIFace};
+use esp_hal::ledc::timer::{self, TimerIFace};
+use esp_hal::time::Rate;
+use log::info;
+
+extern crate alloc;
+
+// This creates a default app-descriptor required by the esp-idf bootloader.
+// For more information see: <https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/system/app_image_format.html#application-description>
+esp_bootloader_esp_idf::esp_app_desc!();
+
+#[esp_hal_embassy::main]
+async fn main(spawner: Spawner) {
+    // generator version: 0.5.0
+    esp_println::logger::init_logger_from_env();
+    
+    let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max());
+    let peripherals = esp_hal::init(config);
+    
+    esp_alloc::heap_allocator!(size: 64 * 1024);
+    
+    let timer0 = TimerGroup::new(peripherals.TIMG1);
+    esp_hal_embassy::init(timer0.timer0);
+    
+    info!("Embassy initialized!");
+    
+
+    // LEDC initialization
+    let mut ledc = Ledc::new(peripherals.LEDC);
+    ledc.set_global_slow_clock(LSGlobalClkSource::APBClk);
+
+    let mut lstimer0 = ledc.timer::<LowSpeed>(timer::Number::Timer0);
+    lstimer0.configure(timer::config::Config {
+        duty: timer::config::Duty::Duty5Bit,
+        clock_source: timer::LSClockSource::APBClk,
+        frequency: Rate::from_khz(24),
+    }).unwrap();
+
+    let led = peripherals.GPIO4;
+    let mut channel0 = ledc.channel(channel::Number::Channel0, led);
+    channel0.configure(channel::config::Config {
+        timer: &lstimer0,
+        duty_pct: 10,
+        pin_config: channel::config::PinConfig::PushPull,
+    }).unwrap();
+
+    loop {
+        // channel0.start_duty_fade(0, 100, 1000).unwrap();
+        // while channel0.is_duty_fade_running() {}
+        // channel0.start_duty_fade(100, 0, 1000).unwrap();
+        // while channel0.is_duty_fade_running() {}
+        
+        channel0.set_duty(100).unwrap();
+        info!("LED ON");
+        Timer::after(Duration::from_secs(1)).await;
+
+        channel0.set_duty(0).unwrap();
+        info!("LED OFF");
+        Timer::after(Duration::from_secs(1)).await;
+    }
+    
+    // for inspiration have a look at the examples at https://github.com/esp-rs/esp-hal/tree/esp-hal-v1.0.0-rc.0/examples/src/bin
+}

test_LED_pwm/src/lib.rs

@@ -0,0 +1 @@
+#![no_std]