From 07a4524fbfeb4b02b88bc17c77325c372cc99ec0 Mon Sep 17 00:00:00 2001
From: ir-mark <mark.spinnenweber@iridium.com>
Date: Tue, 20 May 2025 13:34:32 -0400
Subject: [PATCH] Issue #723 - Fix hang in noTone()
---
cores/arduino/Tone.cpp | 3 +++
1 file changed, 3 insertions(+)
diff --git a/cores/arduino/Tone.cpp b/cores/arduino/Tone.cpp
index 37b6b0b0d..010a0c497 100644
--- a/cores/arduino/Tone.cpp
+++ b/cores/arduino/Tone.cpp
@@ -169,7 +169,10 @@ void noTone (uint8_t outputPin)
*/
if(firstTimeRunning)
{
+ NVIC_DisableIRQ(TONE_TC_IRQn);
resetTC(TONE_TC);
+ NVIC_EnableIRQ(TONE_TC_IRQn);
+
digitalWrite(outputPin, LOW);
toneIsActive = false;
}