From 537d7e089fbf5c7958d775a6254cdc87d608d4d1 Mon Sep 17 00:00:00 2001
From: Damjan Adamic <projectkk2glider@gmail.com>
Date: Tue, 18 Aug 2015 19:56:09 +0200
Subject: [PATCH] Fixes #2728: edge switch could trigger right after the
 logicalSwitchesReset() was called

---
 radio/src/switches.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/radio/src/switches.cpp b/radio/src/switches.cpp
index 746e37755..6415699ff 100644
--- a/radio/src/switches.cpp
+++ b/radio/src/switches.cpp
@@ -835,6 +835,13 @@ void logicalSwitchesTimerTick()
 #if defined(CPUARM)
       else if (ls->func == LS_FUNC_EDGE) {
         ls_stay_struct & lastValue = (ls_stay_struct &)LS_LAST_VALUE(fm, i);
+        // if this ls was reset by the logicalSwitchesReset() the lastValue will be set to CS_LAST_VALUE_INIT(0x8000)
+        // when it is unpacked into ls_stay_struct the lastValue.duration will have a value of 0x4000
+        // this will produce an instant true for edge logical switch if the second parameter is big enough.
+        // So we reset it here.
+        if (LS_LAST_VALUE(fm, i) == CS_LAST_VALUE_INIT) {
+          lastValue.duration = 0;
+        }
         lastValue.state = false;
         bool state = getSwitch(ls->v1);
         if (state) {