Merge branch 'reisnyderb' of https://github.com/ErikZalm/Marlin into Marlin_v1

Marlin/Configuration.h

@@ -90,10 +90,14 @@
 // 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan) (1k pullup)
 
 #define TEMP_SENSOR_0 -1
-#define TEMP_SENSOR_1 0
+#define TEMP_SENSOR_1 -1
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_BED 0
 
+// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+//#define TEMP_SENSOR_1_AS_REDUNDANT 
+#define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
+
 // Actual temperature must be close to target for this long before M109 returns success
 #define TEMP_RESIDENCY_TIME 10  // (seconds)
 #define TEMP_HYSTERESIS 3       // (degC) range of +/- temperatures considered "close" to the target one

Marlin/Configuration_adv.h

@@ -318,6 +318,9 @@ const unsigned int dropsegments=5; //everything with less than this number of st
 //===========================================================================
 //=============================  Define Defines  ============================
 //===========================================================================
+#if EXTRUDERS > 1 && defined TEMP_SENSOR_1_AS_REDUNDANT
+  #error "You cannot use  TEMP_SENSOR_1_AS_REDUNDANT if EXTRUDERS > 1"
+#endif
 
 #if TEMP_SENSOR_0 > 0
   #define THERMISTORHEATER_0 TEMP_SENSOR_0

Marlin/pins.h

@@ -354,6 +354,7 @@
   #else
     #define FAN_PIN            4 // IO pin. Buffer needed
   #endif
+
   #define PS_ON_PIN          12
 
   #if defined(REPRAP_DISCOUNT_SMART_CONTROLLER) || defined(G3D_PANEL)
@@ -363,11 +364,13 @@
   #endif
 
   #define HEATER_0_PIN       10   // EXTRUDER 1
+
   #if MOTHERBOARD == 33
     #define HEATER_1_PIN       -1
   #else
     #define HEATER_1_PIN       9    // EXTRUDER 2 (FAN On Sprinter)
   #endif
+
   #define HEATER_2_PIN       -1
   #define TEMP_0_PIN         13   // ANALOG NUMBERING
   #define TEMP_1_PIN         15   // ANALOG NUMBERING
@@ -375,14 +378,19 @@
   #define HEATER_BED_PIN     8    // BED
   #define TEMP_BED_PIN       14   // ANALOG NUMBERING
 
+
+
   #ifdef NUM_SERVOS
     #define SERVO0_PIN         11
+
     #if NUM_SERVOS > 1
       #define SERVO1_PIN         6
     #endif
+
     #if NUM_SERVOS > 2
       #define SERVO2_PIN         5
     #endif
+
     #if NUM_SERVOS > 2
       #define SERVO3_PIN         4
     #endif
@@ -429,6 +437,7 @@
         #else
           #define SDCARDDETECT -1  // Ramps does not use this port
         #endif
+    
       #endif
 
     #else //old style panel with shift register
@@ -490,12 +499,14 @@
     #define HEATER_BED_PIN    8    // RAMPS 1.1
     #define FAN_PIN           9    // RAMPS 1.1
   #endif
+
   #define HEATER_1_PIN        -1
   #define HEATER_2_PIN        -1
   #define TEMP_0_PIN          2    // MUST USE ANALOG INPUT NUMBERING NOT DIGITAL OUTPUT NUMBERING!!!!!!!!!
   #define TEMP_1_PIN          -1
   #define TEMP_2_PIN          -1
   #define TEMP_BED_PIN        1    // MUST USE ANALOG INPUT NUMBERING NOT DIGITAL OUTPUT NUMBERING!!!!!!!!!
+
 #endif// MOTHERBOARD == 33 || MOTHERBOARD == 34
 
 // SPI for Max6675 Thermocouple

Marlin/temperature.cpp

@@ -40,10 +40,13 @@
 int target_temperature[EXTRUDERS] = { 0 };
 int target_temperature_bed = 0;
 int current_temperature_raw[EXTRUDERS] = { 0 };
-float current_temperature[EXTRUDERS] = { 0 };
+float current_temperature[EXTRUDERS] = { 0.0 };
 int current_temperature_bed_raw = 0;
-float current_temperature_bed = 0;
-
+float current_temperature_bed = 0.0;
+#ifdef TEMP_SENSOR_1_AS_REDUNDANT
+  int redundant_temperature_raw = 0;
+  float redundant_temperature = 0.0;
+#endif
 #ifdef PIDTEMP
   float Kp=DEFAULT_Kp;
   float Ki=(DEFAULT_Ki*PID_dT);
@@ -124,8 +127,14 @@ static int maxttemp[EXTRUDERS] = ARRAY_BY_EXTRUDERS( 16383, 16383, 16383 );
 #ifdef BED_MAXTEMP
 static int bed_maxttemp_raw = HEATER_BED_RAW_HI_TEMP;
 #endif
+
+#ifdef TEMP_SENSOR_1_AS_REDUNDANT
+  static void *heater_ttbl_map[2] = {(void *)HEATER_0_TEMPTABLE, (void *)HEATER_1_TEMPTABLE };
+  static uint8_t heater_ttbllen_map[2] = { HEATER_0_TEMPTABLE_LEN, HEATER_1_TEMPTABLE_LEN };
+#else
   static void *heater_ttbl_map[EXTRUDERS] = ARRAY_BY_EXTRUDERS( (void *)HEATER_0_TEMPTABLE, (void *)HEATER_1_TEMPTABLE, (void *)HEATER_2_TEMPTABLE );
   static uint8_t heater_ttbllen_map[EXTRUDERS] = ARRAY_BY_EXTRUDERS( HEATER_0_TEMPTABLE_LEN, HEATER_1_TEMPTABLE_LEN, HEATER_2_TEMPTABLE_LEN );
+#endif
 
 static float analog2temp(int raw, uint8_t e);
 static float analog2tempBed(int raw);
@@ -471,7 +480,19 @@ void manage_heater()
         }
     }
     #endif
-
+    #ifdef TEMP_SENSOR_1_AS_REDUNDANT
+      if(fabs(current_temperature[0] - redundant_temperature) > MAX_REDUNDANT_TEMP_SENSOR_DIFF) {
+        disable_heater();
+        if(IsStopped() == false) {
+          SERIAL_ERROR_START;
+          SERIAL_ERRORLNPGM("Extruder switched off. Temperature difference between temp sensors is too high !");
+          LCD_ALERTMESSAGEPGM("Err: REDUNDANT TEMP ERROR");
+        }
+        #ifndef BOGUS_TEMPERATURE_FAILSAFE_OVERRIDE
+          Stop();
+        #endif
+      }
+    #endif
   } // End extruder for loop
 
   #if (defined(EXTRUDER_0_AUTO_FAN_PIN) && EXTRUDER_0_AUTO_FAN_PIN > -1) || \
@@ -565,7 +586,11 @@ void manage_heater()
 // Derived from RepRap FiveD extruder::getTemperature()
 // For hot end temperature measurement.
 static float analog2temp(int raw, uint8_t e) {
+#ifdef TEMP_SENSOR_1_AS_REDUNDANT
+  if(e > EXTRUDERS)
+#else
   if(e >= EXTRUDERS)
+#endif
   {
       SERIAL_ERROR_START;
       SERIAL_ERROR((int)e);
@@ -644,7 +669,9 @@ static void updateTemperaturesFromRawValues()
         current_temperature[e] = analog2temp(current_temperature_raw[e], e);
     }
     current_temperature_bed = analog2tempBed(current_temperature_bed_raw);
-
+    #ifdef TEMP_SENSOR_1_AS_REDUNDANT
+      redundant_temperature = analog2temp(redundant_temperature_raw, 1);
+    #endif
     //Reset the watchdog after we know we have a temperature measurement.
     watchdog_reset();
 
@@ -1145,6 +1172,9 @@ ISR(TIMER0_COMPB_vect)
 #if EXTRUDERS > 1
       current_temperature_raw[1] = raw_temp_1_value;
 #endif
+#ifdef TEMP_SENSOR_1_AS_REDUNDANT
+      redundant_temperature_raw = raw_temp_1_value;
+#endif
 #if EXTRUDERS > 2
       current_temperature_raw[2] = raw_temp_2_value;
 #endif

Marlin/temperature.h

@@ -37,6 +37,9 @@ extern int target_temperature[EXTRUDERS];
 extern float current_temperature[EXTRUDERS];
 extern int target_temperature_bed;
 extern float current_temperature_bed;
+#ifdef TEMP_SENSOR_1_AS_REDUNDANT
+  extern float redundant_temperature;
+#endif
 
 #ifdef PIDTEMP
   extern float Kp,Ki,Kd,Kc;