diff --git a/misra/check_misra.sh b/misra/check_misra.sh
index 19ee894e..c04c54cb 100755
--- a/misra/check_misra.sh
+++ b/misra/check_misra.sh
@@ -4,12 +4,13 @@ fi
 
 for i in speeduino/speeduino/*.ino; do
   #cppcheck --xml --include=${i%.*}.h --include=speeduino/speeduino/globals.h $i > /dev/null
-  cppcheck --force --dump --suppress=syntaxError:speeduino/speeduino/src/PID_v1/PID_v1.h --include=${i%.*}.h --include=speeduino/speeduino/globals.h $i > /dev/null
+  #cppcheck --force --dump --suppress=syntaxError:speeduino/speeduino/src/PID_v1/PID_v1.h --include=${i%.*}.h --include=speeduino/speeduino/globals.h -DCORE_AVR=1 -USTM32F4 $i > /dev/null
+  cppcheck --dump --suppress=syntaxError:speeduino/speeduino/src/PID_v1/PID_v1.h --include=${i%.*}.h -DCORE_AVR=1 -D__AVR_ATmega2560__ $i > /dev/null
 done
 mv speeduino/speeduino/*.dump ./
 rm ./utils.*.dump
 
-python cppcheck/addons/misra.py *.dump 2> results.txt
+python cppcheck/addons/misra.py --rule-texts=speeduino/misra/misra_2012_text.txt *.dump 2> results.txt
 rm *.dump
 
 cat results.txt
diff --git a/misra/misra_2012_text.txt b/misra/misra_2012_text.txt
new file mode 100644
index 00000000..17236edf
--- /dev/null
+++ b/misra/misra_2012_text.txt
@@ -0,0 +1,285 @@
+Appendix A Summary of guidelines
+Rule 1.1
+C Syntax violation
+Rule 1.2
+txt rule 1.2
+Rule 1.3
+No text specified
+Rule 2.1
+No text specified
+Rule 2.2
+No text specified
+Rule 2.3
+No text specified
+Rule 2.4
+No text specified
+Rule 2.5
+No text specified
+Rule 2.6
+No text specified
+Rule 2.7
+No text specified
+Rule 3.1
+Mandatory - /* and // cannot used within a comment (ie No nested comments)
+Rule 3.2
+No text specified
+Rule 4.1
+No text specified
+Rule 4.2
+No text specified
+Rule 5.1
+No text specified
+Rule 5.2
+No text specified
+Rule 5.3
+No text specified
+Rule 5.4
+No text specified
+Rule 5.5
+No text specified
+Rule 5.6
+No text specified
+Rule 5.7
+No text specified
+Rule 5.8
+No text specified
+Rule 5.9
+No text specified
+Rule 6.1
+No text specified
+Rule 6.2
+No text specified
+Rule 7.1
+No text specified
+Rule 7.2
+No text specified
+Rule 7.3
+No text specified
+Rule 7.4
+No text specified
+Rule 8.1
+No text specified
+Rule 8.2
+No text specified
+Rule 8.3
+No text specified
+Rule 8.4
+No text specified
+Rule 8.6
+No text specified
+Rule 8.7
+No text specified
+Rule 8.8
+No text specified
+Rule 8.9
+No text specified
+Rule 8.10
+No text specified
+Rule 8.11
+No text specified
+Rule 8.12
+No text specified
+Rule 8.13
+No text specified
+Rule 8.14
+No text specified
+Rule 9.1
+No text specified
+Rule 9.2
+No text specified
+Rule 9.3
+No text specified
+Rule 9.4
+No text specified
+Rule 9.5
+No text specified
+Rule 10.1
+No text specified
+Rule 10.2
+No text specified
+Rule 10.3
+No text specified
+Rule 10.4
+No text specified
+Rule 10.5
+No text specified
+Rule 10.6
+No text Specified
+Rule 10.7
+No text specified
+Rule 10.8
+No text specified
+Rule 11.1
+No text specified
+Rule 11.2
+No text specified
+Rule 11.3
+No text specified
+Rule 11.4
+No text specified
+Rule 11.5
+No text specified
+Rule 11.6
+No text specified
+Rule 11.7
+No text specified
+Rule 11.8
+No text specified
+Rule 11.9
+No text specified
+Rule 12.1
+Advisory - Order of operations within an expression must be explicit. Multiple conditions in a logical operation should have brackets around them.
+Rule 12.2
+No text specified
+Rule 12.3
+Advisory - The comma operator is not permitted.
+Rule 12.4
+No text specified
+Rule 13.1
+No text specified
+Rule 13.2
+No text specified
+Rule 13.3
+No text specified
+Rule 13.4
+Advisory - Assignment operation should not be used in an expression (Check for = when == should have been used)
+Rule 13.5
+No text specified
+Rule 13.6
+No text specified
+Rule 14.1
+No text specified
+Rule 14.2
+No text specified
+Rule 14.3
+No text specified
+Rule 14.4
+Mandatory - Non-Boolean type expression used in an if statement or the conditional iteration statement of a loop
+Rule 15.1
+No text specified
+Rule 15.2
+No text specified
+Rule 15.3
+No text specified
+Rule 15.4
+No text specified
+Rule 15.5
+Advisory - A function should only have a single return point
+Rule 15.6
+No text specified
+Rule 15.7
+No text specified
+Rule 16.1
+No text specified
+Rule 16.2
+No text specified
+Rule 16.3
+No text specified
+Rule 16.4
+Mandatory - All switch statements must have a default case
+Rule 16.5
+No text specified
+Rule 16.6
+No text specified
+Rule 16.7
+No text specified
+Rule 17.1
+No text specified
+Rule 17.2
+No text specified
+Rule 17.3
+No text specified
+Rule 17.4
+No text specified
+Rule 17.5
+No text specified
+Rule 17.6
+No text specified
+Rule 17.7
+No text specified
+Rule 17.8
+Advisory - An argument to a function should be treated as read-only
+Rule 18.1
+No text specified
+Rule 18.2
+No text specified
+Rule 18.3
+No text specified
+Rule 18.4
+No text specified
+Rule 18.5
+No text specified
+Rule 18.6
+No text specified
+Rule 18.7
+No text specified
+Rule 18.8
+No text specified
+Rule 19.1
+No text specified
+Rule 19.2
+No text specified
+Rule 20.1
+No text specified
+Rule 20.2
+No text specified
+Rule 20.3
+No text specified
+Rule 20.4
+No text specified
+Rule 20.5
+Advisory - Use of #undef is not permitted
+Rule 20.6
+No text specified
+Rule 20.7
+No text specified
+Rule 20.8
+No text specified
+Rule 20.9
+No text specified
+Rule 20.10
+No text specified
+Rule 20.11
+No text specified
+Rule 20.12
+No text specified
+Rule 20.13
+No text specified
+Rule 20.14
+No text specified
+Rule 21.1
+No text specified
+Rule 21.2
+No text specified
+Rule 21.3
+No text specified
+Rule 21.4
+No text specified
+Rule 21.5
+No text specified
+Rule 21.6
+No text specified
+Rule 21.7
+No text specified
+Rule 21.8
+No text specified
+Rule 21.9
+No text specified
+Rule 21.10
+No text specified
+Rule 21.11
+No text specified
+Rule 21.12
+No text specified
+Rule 22.1
+No text specified
+Rule 22.2
+No text specified
+Rule 22.3
+No text specified
+Rule 22.4
+No text specified
+Rule 22.5
+No text specified
+Rule 22.6
+No text specified
\ No newline at end of file
diff --git a/speeduino/decoders.h b/speeduino/decoders.h
index a8625888..e0a737da 100644
--- a/speeduino/decoders.h
+++ b/speeduino/decoders.h
@@ -174,7 +174,7 @@ unsigned long triggerSecFilterTime; // The shortest time (in uS) that pulses wil
 unsigned int triggerSecFilterTime_duration; // The shortest valid time (in uS) pulse DURATION
 volatile uint16_t triggerToothAngle; //The number of crank degrees that elapse per tooth
 volatile bool triggerToothAngleIsCorrect = false; //Whether or not the triggerToothAngle variable is currently accurate. Some patterns have times when the triggerToothAngle variable cannot be accurately set.
-bool secondDerivEnabled; //The use of the 2nd derivative calculation is limited to certain decoders. This is set to either true or false in each decoders setup routine
+bool secondDerivEnabled = false; //The use of the 2nd derivative calculation is limited to certain decoders. This is set to either true or false in each decoders setup routine
 bool decoderIsSequential; //Whether or not the decoder supports sequential operation
 bool decoderIsLowRes = false; //Is set true, certain extra calculations are performed for better timing accuracy
 bool decoderHasFixedCrankingTiming = false; //Whether or not the decoder supports fixed cranking timing
diff --git a/speeduino/decoders.ino b/speeduino/decoders.ino
index be50ee71..c726ecb9 100644
--- a/speeduino/decoders.ino
+++ b/speeduino/decoders.ino
@@ -565,7 +565,7 @@ void triggerPri_BasicDistributor()
     if(configPage2.perToothIgn == true)
     {
       uint16_t crankAngle = ( (toothCurrentCount-1) * triggerToothAngle ) + configPage4.triggerAngle;
-      crankAngle = ignitionLimits(crankAngle);
+      crankAngle = ignitionLimits((crankAngle));
       if(toothCurrentCount > (triggerActualTeeth/2) ) { checkPerToothTiming(crankAngle, (toothCurrentCount - (triggerActualTeeth/2))); }
       else { checkPerToothTiming(crankAngle, toothCurrentCount); }
     }
@@ -621,10 +621,10 @@ void triggerSetEndTeeth_BasicDistributor()
 {
 
   int tempEndAngle = (ignition1EndAngle - configPage4.triggerAngle);
-  tempEndAngle = ignitionLimits(tempEndAngle);
+  tempEndAngle = ignitionLimits((tempEndAngle));
 
   
-  if(tempEndAngle > 180 || tempEndAngle <= 0)
+  if( (tempEndAngle > 180) || (tempEndAngle <= 0) )
   {
     ignition1EndTooth = 2;
     ignition2EndTooth = 1;