Merge pull request #670 from dimpolo/clear_counter_interrupt

reset timer interrupt in Counter::start

Author: burrbull

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

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)?;