From 3cdd8c1aebaebd7464fa3477ce63525a101dcf72 Mon Sep 17 00:00:00 2001
From: chemicstry <chemicstry@gmail.com>
Date: Thu, 23 Jun 2022 02:27:39 +0300
Subject: Fix PWM for advanced timers

---
 examples/stm32f4/src/bin/pwm.rs | 42 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 examples/stm32f4/src/bin/pwm.rs

(limited to 'examples')

diff --git a/examples/stm32f4/src/bin/pwm.rs b/examples/stm32f4/src/bin/pwm.rs
new file mode 100644
index 000000000..4073f5385
--- /dev/null
+++ b/examples/stm32f4/src/bin/pwm.rs
@@ -0,0 +1,42 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy::executor::Spawner;
+use embassy::time::{Duration, Timer};
+use embassy_stm32::pwm::simple_pwm::SimplePwm;
+use embassy_stm32::pwm::Channel;
+use embassy_stm32::time::{Hertz, U32Ext};
+use embassy_stm32::{Config, Peripherals};
+use {defmt_rtt as _, panic_probe as _};
+
+fn config() -> Config {
+    let mut config = Config::default();
+    config.rcc.hse = Some(Hertz(8_000_000));
+    config.rcc.sys_ck = Some(Hertz(84_000_000));
+    config
+}
+
+#[embassy::main(config = "config()")]
+async fn main(_spawner: Spawner, p: Peripherals) {
+    info!("Hello World!");
+
+    let mut pwm = SimplePwm::new_1ch(p.TIM1, p.PE9, 10000.hz());
+    let max = pwm.get_max_duty();
+    pwm.enable(Channel::Ch1);
+
+    info!("PWM initialized");
+    info!("PWM max duty {}", max);
+
+    loop {
+        pwm.set_duty(Channel::Ch1, 0);
+        Timer::after(Duration::from_millis(300)).await;
+        pwm.set_duty(Channel::Ch1, max / 4);
+        Timer::after(Duration::from_millis(300)).await;
+        pwm.set_duty(Channel::Ch1, max / 2);
+        Timer::after(Duration::from_millis(300)).await;
+        pwm.set_duty(Channel::Ch1, max - 1);
+        Timer::after(Duration::from_millis(300)).await;
+    }
+}
-- 
cgit