🔧 Thermistor (66) sanity-check (MarlinFirmware#24803)

Author: thisiskeithb

Marlin/Configuration.h

@@ -496,7 +496,7 @@
  *    30 : 100kΩ  Kis3d Silicone heating mat 200W/300W with 6mm precision cast plate (EN AW 5083) NTC100K - beta 3950
  *    60 : 100kΩ  Maker's Tool Works Kapton Bed Thermistor - beta 3950
  *    61 : 100kΩ  Formbot/Vivedino 350°C Thermistor - beta 3950
- *    66 : 4.7MΩ  Dyze Design High Temperature Thermistor
+ *    66 : 4.7MΩ  Dyze Design / Trianglelab T-D500 500°C High Temperature Thermistor
  *    67 : 500kΩ  SliceEngineering 450°C Thermistor
  *    68 : PT100 amplifier board from Dyze Design
  *    70 : 100kΩ  bq Hephestos 2

Marlin/src/core/macros.h

@@ -738,6 +738,7 @@
 #define MAPLIST(OP,V...) EVAL(_MAPLIST(OP,V))
 
 // Temperature Sensor Config
-#define _HAS_E_TEMP(N) || (TEMP_SENSOR_##N != 0)
+#define TEMP_SENSOR(N) TEMP_SENSOR_##N
+#define _HAS_E_TEMP(N) || TEMP_SENSOR(N)
 #define HAS_E_TEMP_SENSOR (0 REPEAT(EXTRUDERS, _HAS_E_TEMP))
-#define TEMP_SENSOR_IS_MAX_TC(T) (TEMP_SENSOR_##T == -5 || TEMP_SENSOR_##T == -3 || TEMP_SENSOR_##T == -2)
+#define TEMP_SENSOR_IS_MAX_TC(T) (TEMP_SENSOR(T) == -5 || TEMP_SENSOR(T) == -3 || TEMP_SENSOR(T) == -2)

Marlin/src/inc/Conditionals_adv.h

@@ -161,9 +161,10 @@
 #define HID_E6         6
 #define HID_E7         7
 
-#define _SENSOR_IS(I,N) || (TEMP_SENSOR_##N == I)
+#define _SENSOR_IS(I,N) || (TEMP_SENSOR(N) == I)
 #define _E_SENSOR_IS(I,N) _SENSOR_IS(N,I)
-#define ANY_THERMISTOR_IS(N) (0 REPEAT2(HOTENDS, _E_SENSOR_IS, N) \
+#define ANY_E_SENSOR_IS(N) (0 REPEAT2(HOTENDS, _E_SENSOR_IS, N))
+#define ANY_THERMISTOR_IS(N) ( ANY_E_SENSOR_IS(N) \
   _SENSOR_IS(N,BED) _SENSOR_IS(N,PROBE) _SENSOR_IS(N,CHAMBER) \
   _SENSOR_IS(N,COOLER) _SENSOR_IS(N,BOARD) _SENSOR_IS(N,REDUNDANT) )
 

Marlin/src/inc/Conditionals_post.h

@@ -2656,7 +2656,7 @@
 //
 // ADC Temp Sensors (Thermistor or Thermocouple with amplifier ADC interface)
 //
-#define HAS_ADC_TEST(P) (PIN_EXISTS(TEMP_##P) && TEMP_SENSOR_##P != 0 && !TEMP_SENSOR_IS_MAX_TC(P) && !TEMP_SENSOR_##P##_IS_DUMMY)
+#define HAS_ADC_TEST(P) (TEMP_SENSOR(P) && PIN_EXISTS(TEMP_##P) && !TEMP_SENSOR_IS_MAX_TC(P) && !TEMP_SENSOR_##P##_IS_DUMMY)
 #if HOTENDS > 0 && HAS_ADC_TEST(0)
   #define HAS_TEMP_ADC_0 1
 #endif

Marlin/src/inc/SanityCheck.h

@@ -2272,6 +2272,37 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
   #error "TEMP_SENSOR_REDUNDANT 1000 requires REDUNDANT_PULLUP_RESISTOR_OHMS, REDUNDANT_RESISTANCE_25C_OHMS and REDUNDANT_BETA in Configuration_adv.h."
 #endif
 
+/**
+ * Required thermistor 66 (Dyze Design / Trianglelab T-D500) settings
+ * https://docs.dyzedesign.com/hotends.html#_500-%C2%B0c-thermistor
+ */
+#if ANY_E_SENSOR_IS(66)
+  #define _BAD_MINTEMP(N) (TEMP_SENSOR(N) == 66 && HEATER_##N##_MINTEMP <= 20)
+  #if _BAD_MINTEMP(0)
+    #error "Thermistor 66 requires HEATER_0_MINTEMP > 20."
+  #elif _BAD_MINTEMP(1)
+    #error "Thermistor 66 requires HEATER_1_MINTEMP > 20."
+  #elif _BAD_MINTEMP(2)
+    #error "Thermistor 66 requires HEATER_2_MINTEMP > 20."
+  #elif _BAD_MINTEMP(3)
+    #error "Thermistor 66 requires HEATER_3_MINTEMP > 20."
+  #elif _BAD_MINTEMP(4)
+    #error "Thermistor 66 requires HEATER_4_MINTEMP > 20."
+  #elif _BAD_MINTEMP(5)
+    #error "Thermistor 66 requires HEATER_5_MINTEMP > 20."
+  #elif _BAD_MINTEMP(6)
+    #error "Thermistor 66 requires HEATER_6_MINTEMP > 20."
+  #elif _BAD_MINTEMP(7)
+    #error "Thermistor 66 requires HEATER_7_MINTEMP > 20."
+  #endif
+  #if MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED < 5
+    #error "Thermistor 66 requires MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED ≥ 5."
+  #elif MILLISECONDS_PREHEAT_TIME < 30000
+    #error "Thermistor 66 requires MILLISECONDS_PREHEAT_TIME ≥ 30000."
+  #endif
+  #undef _BAD_MINTEMP
+#endif
+
 /**
  * Required MAX31865 settings
  */

Marlin/src/lcd/thermistornames.h

@@ -141,7 +141,7 @@
 #elif THERMISTOR_ID == 61
   #define THERMISTOR_NAME "Formbot 350°C"
 #elif THERMISTOR_ID == 66
-  #define THERMISTOR_NAME "Dyze 4.7M"
+  #define THERMISTOR_NAME "Dyze / TL 4.7M"
 #elif THERMISTOR_ID == 67
   #define THERMISTOR_NAME "SliceEng 450°C"
 

Marlin/src/module/temperature.cpp

@@ -2649,7 +2649,7 @@ void Temperature::init() {
         temp_range[NR].raw_max -= TEMPDIR(NR) * (OVERSAMPLENR); \
     }while(0)
 
-    #define _MINMAX_TEST(N,M) (HOTENDS > N && TEMP_SENSOR_##N > 0 && TEMP_SENSOR_##N != 998 && TEMP_SENSOR_##N != 999 && defined(HEATER_##N##_##M##TEMP))
+    #define _MINMAX_TEST(N,M) (HOTENDS > N && TEMP_SENSOR(N) > 0 && TEMP_SENSOR(N) != 998 && TEMP_SENSOR(N) != 999 && defined(HEATER_##N##_##M##TEMP))
 
     #if _MINMAX_TEST(0, MIN)
       _TEMP_MIN_E(0);

Marlin/src/module/thermistor/thermistor_66.h

@@ -21,7 +21,7 @@
  */
 #pragma once
 
-// R25 = 2.5 MOhm, beta25 = 4500 K, 4.7 kOhm pull-up, DyzeDesign 500 °C Thermistor
+// R25 = 2.5 MOhm, beta25 = 4500 K, 4.7 kOhm pull-up, DyzeDesign / Trianglelab T-D500 500 °C Thermistor
 constexpr temp_entry_t temptable_66[] PROGMEM = {
   { OV(  17.5), 850 },
   { OV(  17.9), 500 },

Marlin/src/module/thermistor/thermistors.h

@@ -338,7 +338,7 @@ static_assert(255 > TEMPTABLE_0_LEN || 255 > TEMPTABLE_1_LEN || 255 > TEMPTABLE_
 // For thermocouples the highest temperature results in the highest ADC value
 
 #define _TT_REV(N)    REVERSE_TEMP_SENSOR_RANGE_##N
-#define TT_REV(N)     TERN0(TEMP_SENSOR_##N##_IS_THERMISTOR, DEFER4(_TT_REV)(TEMP_SENSOR_##N))
+#define TT_REV(N)     TERN0(TEMP_SENSOR_##N##_IS_THERMISTOR, DEFER4(_TT_REV)(TEMP_SENSOR(N)))
 #define _TT_REVRAW(N) !TEMP_SENSOR_##N##_IS_THERMISTOR
 #define TT_REVRAW(N)  (TT_REV(N) || _TT_REVRAW(N))