From dd2577fcf06cd2805097769b4fcad4e0feea5639 Mon Sep 17 00:00:00 2001
From: Martin Marmsoler <martin.marmsoler@gmail.com>
Date: Fri, 26 Jan 2024 20:55:53 +0100
Subject: [PATCH] use constant for the pwm clock

Description: So it can be used outside of the crate to calculate max duty
---
 embassy-nrf/src/pwm.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/embassy-nrf/src/pwm.rs b/embassy-nrf/src/pwm.rs
index 2f0397632..197ba640c 100644
--- a/embassy-nrf/src/pwm.rs
+++ b/embassy-nrf/src/pwm.rs
@@ -47,6 +47,7 @@ pub enum Error {
 }
 
 const MAX_SEQUENCE_LEN: usize = 32767;
+pub const PWM_CLK_HZ: u32 = 16_000_000;
 
 impl<'d, T: Instance> SequencePwm<'d, T> {
     /// Create a new 1-channel PWM
@@ -788,7 +789,7 @@ 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 +797,7 @@ 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
     }