Expose MAX31865 50Hz Filter setting.

MarlinFirmware · Jul 3, 2021 · 5a1f5b9 · 5a1f5b9
1 parent c3f4343
commit 5a1f5b9
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Showing 3 changed files with 13 additions and 8 deletions.
diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
@@ -502,11 +502,9 @@
 #define DUMMY_THERMISTOR_998_VALUE  25
 #define DUMMY_THERMISTOR_999_VALUE 100
 
-// Number of probe wires, and resistor values when using MAX31865 sensors (-5) on TEMP_SENSOR_0 / 1
-//#define MAX31865_SENSOR_WIRES_0       2   // Number of wires the connected probe uses, 2-4 (default: 2)
+// Resistor values when using MAX31865 sensors (-5) on TEMP_SENSOR_0 / 1
 //#define MAX31865_SENSOR_OHMS_0      100   // (Ω) Typically 100 or 1000 (PT100 or PT1000)
 //#define MAX31865_CALIBRATION_OHMS_0 430   // (Ω) Typically 430 for Adafruit PT100; 4300 for Adafruit PT1000
-//#define MAX31865_SENSOR_WIRES_1       2
 //#define MAX31865_SENSOR_OHMS_1      100
 //#define MAX31865_CALIBRATION_OHMS_1 430
 

diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
@@ -135,16 +135,17 @@
  * Configuration options for MAX Thermocouples (-2, -3, -5).
  *   FORCE_HW_SPI:   Ignore SCK/MOSI/MISO pins and just use the CS pin & default SPI bus.
  *   MAX31865_WIRES: Set the number of wires for the probe connected to a MAX31865 board, 2-4. Default: 2
+ *   MAX31865_50HZ:  Enable 50Hz filter instead of the default 60Hz.
  */
 //#define TEMP_SENSOR_FORCE_HW_SPI
 //#define MAX31865_SENSOR_WIRES_0 2
 //#define MAX31865_SENSOR_WIRES_1 2
+//#define MAX31865_50HZ_FILTER
 
-
-//
-// Hephestos 2 24V heated bed upgrade kit.
-// https://store.bq.com/en/heated-bed-kit-hephestos2
-//
+/**
+ * Hephestos 2 24V heated bed upgrade kit.
+ * https://store.bq.com/en/heated-bed-kit-hephestos2
+ */
 //#define HEPHESTOS2_HEATED_BED_KIT
 #if ENABLED(HEPHESTOS2_HEATED_BED_KIT)
   #undef TEMP_SENSOR_BED

diff --git a/Marlin/src/module/temperature.cpp b/Marlin/src/module/temperature.cpp
@@ -2084,6 +2084,9 @@ void Temperature::init() {
         MAX31865_CALIBRATION_OHMS_0,
         MAX31865_WIRES(MAX31865_SENSOR_WIRES_0) // MAX31865_2WIRE, MAX31865_3WIRE, MAX31865_4WIRE
       );
+      #ifdef MAX31865_50HZ_FILTER
+        max31865_0.enable50HzFilter(1);
+      #endif
     #endif
 
     #if TEMP_SENSOR_IS_MAX(1, 6675) && HAS_MAX6675_LIBRARY
@@ -2096,6 +2099,9 @@ void Temperature::init() {
         MAX31865_CALIBRATION_OHMS_1,
         MAX31865_WIRES(MAX31865_SENSOR_WIRES_1)
       );
+      #ifdef MAX31865_50HZ_FILTER
+        max31865_1.enable50HzFilter(1);
+      #endif
     #endif
     #undef MAX31865_WIRES
     #undef _MAX31865_WIRES