diff --git a/embassy-nrf/src/pwm.rs b/embassy-nrf/src/pwm.rs index 2f0397632..856e12024 100644 --- a/embassy-nrf/src/pwm.rs +++ b/embassy-nrf/src/pwm.rs @@ -47,6 +47,8 @@ pub enum Error { } const MAX_SEQUENCE_LEN: usize = 32767; +/// The used pwm clock frequency +pub const PWM_CLK_HZ: u32 = 16_000_000; impl<'d, T: Instance> SequencePwm<'d, T> { /// Create a new 1-channel PWM @@ -713,6 +715,13 @@ impl<'d, T: Instance> SimplePwm<'d, T> { pwm } + /// Returns the enable state of the pwm counter + #[inline(always)] + pub fn is_enabled(&self) -> bool { + let r = T::regs(); + r.enable.read().enable().bit_is_set() + } + /// Enables the PWM generator. #[inline(always)] pub fn enable(&self) { @@ -788,7 +797,7 @@ impl<'d, T: Instance> SimplePwm<'d, T> { /// Sets the PWM output frequency. #[inline(always)] pub fn set_period(&self, freq: u32) { - let clk = 16_000_000u32 >> (self.prescaler() as u8); + let clk = PWM_CLK_HZ >> (self.prescaler() as u8); let duty = clk / freq; self.set_max_duty(duty.min(32767) as u16); } @@ -796,7 +805,7 @@ impl<'d, T: Instance> SimplePwm<'d, T> { /// Returns the PWM output frequency. #[inline(always)] pub fn period(&self) -> u32 { - let clk = 16_000_000u32 >> (self.prescaler() as u8); + let clk = PWM_CLK_HZ >> (self.prescaler() as u8); let max_duty = self.max_duty() as u32; clk / max_duty }