From ea8b2c2f14ed463e4ceab8ee93ac336c09c6f66e Mon Sep 17 00:00:00 2001
From: dimi <dimi.polonski@gmail.com>
Date: Thu, 13 Jul 2023 13:50:54 +0200
Subject: [PATCH] reset timer interrupt in Counter::start

---
 CHANGELOG.md         | 5 +++++
 src/timer/counter.rs | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 026e4732..fd4d8e50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 [#671]: https://github.com/stm32-rs/stm32f4xx-hal/pull/671
 
+### Fixed
+- reset timer interrupt in `Counter::start` [#670]
+
+[#670]: https://github.com/stm32-rs/stm32f4xx-hal/pull/670
+
 ## [v0.17.0] - 2023-07-11
 
 ### Changed
diff --git a/src/timer/counter.rs b/src/timer/counter.rs
index c41dbec3..6a63c344 100644
--- a/src/timer/counter.rs
+++ b/src/timer/counter.rs
@@ -34,6 +34,7 @@ impl<TIM: Instance> CounterHz<TIM> {
         self.tim.disable_counter();
         // reset counter
         self.tim.reset_counter();
+        self.tim.clear_interrupt_flag(Event::Update);
 
         let (psc, arr) = compute_arr_presc(timeout.raw(), self.clk.raw());
         self.tim.set_prescaler(psc);
@@ -109,6 +110,7 @@ impl<TIM: Instance, const FREQ: u32> Counter<TIM, FREQ> {
         self.tim.disable_counter();
         // reset counter
         self.tim.reset_counter();
+        self.tim.clear_interrupt_flag(Event::Update);
 
         self.tim.set_auto_reload(timeout.ticks() - 1)?;