From 40604e3679e2e59c785a0e91a9e9fe1097c2e6fc Mon Sep 17 00:00:00 2001
From: Flokke <fl_mueller@gmx.net>
Date: Thu, 7 May 2026 09:01:38 +0200
Subject: [PATCH] Mark shared ISR/task variables as volatile

---
 src/main.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/main.h b/src/main.h
index a6aeded..ccfd80b 100644
--- a/src/main.h
+++ b/src/main.h
@@ -71,14 +71,14 @@
 extern uint8_t numberWindowsOpen;
 extern uint32_t waitTimeDs;
 extern char textBuf[100];
-extern bool   bRequestShortBeep;
+extern volatile bool   bRequestShortBeep; /* written by loop task, cleared by beepTask */
 extern bool   bIsNightTime;
 extern PiepPattern *piepPattern;
 
-extern DeciSeconds_t tDecis;
+extern volatile DeciSeconds_t tDecis;     /* incremented in timerIsr, read by multiple tasks */
 extern ReceiverFunkThermometerData_t thermoData;
 
-extern uint32_t loopCountSincePause;
+extern volatile uint32_t loopCountSincePause; /* read in pinLevelChangeIsr, written by loop task */
 extern uint8_t toneRequest;
 
 extern Fenster fensterFloBuero;