From: Bernhard Kubicek <kubicek@gmx.at>
Date: Sat, 5 Nov 2011 15:53:37 +0000 (+0100)
Subject: moved the variables in the ISR, thats the most normal use case of static.
X-Git-Tag: iwj-success-2012-07-29~262^2
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=ea86a5e10f7b8c0b2e0e0bf97a1fc95dbac4ae89;p=marlin.git

moved the variables in the ISR, thats the most normal use case of static.
---

diff --git a/Marlin/temperature.cpp b/Marlin/temperature.cpp
index ebc772e..25df2f7 100644
--- a/Marlin/temperature.cpp
+++ b/Marlin/temperature.cpp
@@ -322,15 +322,18 @@ void tp_init()
   TIMSK0 |= (1<<OCIE0B);  
 }
 
-static unsigned char temp_count = 0;
-static unsigned long raw_temp_0_value = 0;
-static unsigned long raw_temp_1_value = 0;
-static unsigned long raw_temp_2_value = 0;
-static unsigned char temp_state = 0;
+
 
 // Timer 0 is shared with millies
 ISR(TIMER0_COMPB_vect)
 {
+  //these variables are only accesible from the ISR, but static, so they don't loose their value
+  static unsigned char temp_count = 0;
+  static unsigned long raw_temp_0_value = 0;
+  static unsigned long raw_temp_1_value = 0;
+  static unsigned long raw_temp_2_value = 0;
+  static unsigned char temp_state = 0;
+  
   switch(temp_state) {
     case 0: // Prepare TEMP_0
             #if (TEMP_0_PIN > -1)