From 4dee6da29ef59f512b5e9bdc8c99a335649f5362 Mon Sep 17 00:00:00 2001
From: Harald Barth <haba@kth.se>
Date: Tue, 20 Oct 2020 10:55:12 +0200
Subject: [PATCH] make volatile because of interrupt routine and optimzer in
 PIO

---
 DCCWaveform.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/DCCWaveform.h b/DCCWaveform.h
index 507cc3d..32041e6 100644
--- a/DCCWaveform.h
+++ b/DCCWaveform.h
@@ -118,8 +118,8 @@ class DCCWaveform {
     unsigned int power_good_counter = 0;
 
     // ACK management (Prog track only)  
-    bool ackPending;    
-    bool ackDetected;   
+    volatile bool ackPending;
+    volatile bool ackDetected;
     int  ackThreshold; 
     int  ackLimitmA = 60;
     int ackMaxCurrent;