Fix MAX31865 on SPI (PT100/1000) support (#20074)
This commit is contained in:
JoAnn Manges
GitHub
parent
6ccb4b93b1
commit
40d442fde2
@ -436,11 +436,11 @@
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#define DUMMY_THERMISTOR_998_VALUE 25
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#define DUMMY_THERMISTOR_999_VALUE 100
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// Resistor values when using a MAX31865 (sensor -5)
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// Sensor value is typically 100 (PT100) or 1000 (PT1000)
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// Calibration value is typically 430 ohm for AdaFruit PT100 modules and 4300 ohm for AdaFruit PT1000 modules.
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//#define MAX31865_SENSOR_OHMS 100
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//#define MAX31865_CALIBRATION_OHMS 430
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// Resistor values when using MAX31865 sensors (-5) on TEMP_SENSOR_0 / 1
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//#define MAX31865_SENSOR_OHMS_0 100 // (Ω) Typically 100 or 1000 (PT100 or PT1000)
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//#define MAX31865_CALIBRATION_OHMS_0 430 // (Ω) Typically 430 for AdaFruit PT100; 4300 for AdaFruit PT1000
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//#define MAX31865_SENSOR_OHMS_1 100
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//#define MAX31865_CALIBRATION_OHMS_1 430
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// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
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// from the two sensors differ too much the print will be aborted.
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@ -445,9 +445,9 @@
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#define HEATER_0_MAX6675_TMAX 1024
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#endif
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#if TEMP_SENSOR_0 == -5
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#define MAX6675_IS_MAX31865 1
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#define MAX6675_0_IS_MAX31865 1
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#elif TEMP_SENSOR_0 == -3
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#define MAX6675_IS_MAX31855 1
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#define MAX6675_0_IS_MAX31855 1
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#endif
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#elif TEMP_SENSOR_0 == -4
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#define HEATER_0_USES_AD8495 1
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@ -473,6 +473,11 @@
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#define HEATER_1_MAX6675_TMIN 0
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#define HEATER_1_MAX6675_TMAX 1024
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#endif
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#if TEMP_SENSOR_1 == -5
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#define MAX6675_1_IS_MAX31865 1
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#elif TEMP_SENSOR_1 == -3
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#define MAX6675_1_IS_MAX31855 1
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#endif
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#if TEMP_SENSOR_1 != TEMP_SENSOR_0
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#if TEMP_SENSOR_1 == -5
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#error "If MAX31865 Thermocouple (-5) is used for TEMP_SENSOR_1 then TEMP_SENSOR_0 must match."
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@ -405,6 +405,10 @@
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#error "MAX6675_SS is now MAX6675_SS_PIN. Please update your configuration and/or pins."
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#elif defined(MAX6675_SS2)
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#error "MAX6675_SS2 is now MAX6675_SS2_PIN. Please update your configuration and/or pins."
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#elif defined(MAX31865_SENSOR_OHMS)
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#error "MAX31865_SENSOR_OHMS is now MAX31865_SENSOR_OHMS_0. Please update your configuration."
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#elif defined(MAX31865_CALIBRATION_OHMS)
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#error "MAX31865_CALIBRATION_OHMS is now MAX31865_CALIBRATION_OHMS_0. Please update your configuration."
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#elif defined(SPINDLE_LASER_ENABLE)
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#error "SPINDLE_LASER_ENABLE is now SPINDLE_FEATURE or LASER_FEATURE. Please update your Configuration_adv.h."
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#elif defined(SPINDLE_LASER_ENABLE_PIN)
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@ -1814,8 +1818,10 @@ static_assert(hbm[Z_AXIS] >= 0, "HOMING_BUMP_MM.Z must be greater than or equal
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#error "TEMP_SENSOR_1 is required with TEMP_SENSOR_1_AS_REDUNDANT."
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#endif
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#if MAX6675_IS_MAX31865 && !(defined(MAX31865_SENSOR_OHMS) && defined(MAX31865_CALIBRATION_OHMS))
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#error "MAX31865_SENSOR_OHMS and MAX31865_CALIBRATION_OHMS must be set in Configuration.h when using a MAX31865 temperature sensor."
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#if MAX6675_0_IS_MAX31865 && !(defined(MAX31865_SENSOR_OHMS_0) && defined(MAX31865_CALIBRATION_OHMS_0))
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#error "MAX31865_SENSOR_OHMS_0 and MAX31865_CALIBRATION_OHMS_0 must be set in Configuration.h if TEMP_SENSOR_0 is MAX31865."
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#elif MAX6675_1_IS_MAX31865 && !(defined(MAX31865_SENSOR_OHMS_1) && defined(MAX31865_CALIBRATION_OHMS_1))
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#error "MAX31865_SENSOR_OHMS_1 and MAX31865_CALIBRATION_OHMS_1 must be set in Configuration.h if TEMP_SENSOR_1 is MAX31865."
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#endif
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/**
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@ -44,30 +44,44 @@
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#include "../lcd/extui/ui_api.h"
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#endif
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#if MAX6675_IS_MAX31865
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#if MAX6675_0_IS_MAX31865 || MAX6675_1_IS_MAX31865
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#include <Adafruit_MAX31865.h>
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#ifndef MAX31865_CS_PIN
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#define MAX31865_CS_PIN MAX6675_SS_PIN // HW:49 SW:65 for example
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#if MAX6675_0_IS_MAX31865 && !defined(MAX31865_CS_PIN) && PIN_EXISTS(MAX6675_SS)
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#define MAX31865_CS_PIN MAX6675_SS_PIN
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#endif
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#if MAX6675_1_IS_MAX31865 && !defined(MAX31865_CS2_PIN) && PIN_EXISTS(MAX6675_SS2)
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#define MAX31865_CS2_PIN MAX6675_SS2_PIN
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#endif
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#ifndef MAX31865_MOSI_PIN
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#define MAX31865_MOSI_PIN MOSI_PIN // 63
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#define MAX31865_MOSI_PIN MOSI_PIN
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#endif
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#ifndef MAX31865_MISO_PIN
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#define MAX31865_MISO_PIN MAX6675_DO_PIN // 42
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#define MAX31865_MISO_PIN MAX6675_DO_PIN
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#endif
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#ifndef MAX31865_SCK_PIN
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#define MAX31865_SCK_PIN MAX6675_SCK_PIN // 40
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#define MAX31865_SCK_PIN MAX6675_SCK_PIN
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#endif
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#if MAX6675_0_IS_MAX31865 && PIN_EXISTS(MAX31865_CS)
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#define HAS_MAX31865 1
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Adafruit_MAX31865 max31865_0 = Adafruit_MAX31865(MAX31865_CS_PIN
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#if MAX31865_CS_PIN != MAX6675_SS_PIN
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, MAX31865_MOSI_PIN, MAX31865_MISO_PIN, MAX31865_SCK_PIN // For software SPI also set MOSI/MISO/SCK
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#endif
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);
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#endif
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#if MAX6675_1_IS_MAX31865 && PIN_EXISTS(MAX31865_CS2)
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#define HAS_MAX31865 1
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Adafruit_MAX31865 max31865_1 = Adafruit_MAX31865(MAX31865_CS2_PIN
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#if MAX31865_CS2_PIN != MAX6675_SS2_PIN
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, MAX31865_MOSI_PIN, MAX31865_MISO_PIN, MAX31865_SCK_PIN // For software SPI also set MOSI/MISO/SCK
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#endif
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);
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#endif
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Adafruit_MAX31865 max31865 = Adafruit_MAX31865(MAX31865_CS_PIN
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#if MAX31865_CS_PIN != MAX6675_SS_PIN
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, MAX31865_MOSI_PIN // For software SPI also set MOSI/MISO/SCK
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, MAX31865_MISO_PIN
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, MAX31865_SCK_PIN
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#endif
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);
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#endif
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#define MAX6675_SEPARATE_SPI (EITHER(HEATER_0_USES_MAX6675, HEATER_1_USES_MAX6675) && PINS_EXIST(MAX6675_SCK, MAX6675_DO))
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#if EITHER(HEATER_0_USES_MAX6675, HEATER_1_USES_MAX6675) && PINS_EXIST(MAX6675_SCK, MAX6675_DO)
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#define MAX6675_SEPARATE_SPI 1
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#endif
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#if MAX6675_SEPARATE_SPI
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#include "../libs/private_spi.h"
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@ -1471,13 +1485,7 @@ void Temperature::manage_heater() {
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#if HEATER_0_USER_THERMISTOR
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return user_thermistor_to_deg_c(CTI_HOTEND_0, raw);
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#elif HEATER_0_USES_MAX6675
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return (
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#if MAX6675_IS_MAX31865
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max31865.temperature(MAX31865_SENSOR_OHMS, MAX31865_CALIBRATION_OHMS)
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#else
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raw * 0.25
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#endif
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);
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return TERN(MAX6675_0_IS_MAX31865, max31865_0.temperature(MAX31865_SENSOR_OHMS_0, MAX31865_CALIBRATION_OHMS_0), raw * 0.25);
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#elif HEATER_0_USES_AD595
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return TEMP_AD595(raw);
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#elif HEATER_0_USES_AD8495
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@ -1489,7 +1497,7 @@ void Temperature::manage_heater() {
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#if HEATER_1_USER_THERMISTOR
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return user_thermistor_to_deg_c(CTI_HOTEND_1, raw);
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#elif HEATER_1_USES_MAX6675
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return raw * 0.25;
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return TERN(MAX6675_1_IS_MAX31865, max31865_1.temperature(MAX31865_SENSOR_OHMS_1, MAX31865_CALIBRATION_OHMS_1), raw * 0.25);
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#elif HEATER_1_USES_AD595
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return TEMP_AD595(raw);
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#elif HEATER_1_USES_AD8495
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@ -1691,7 +1699,8 @@ void Temperature::updateTemperaturesFromRawValues() {
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*/
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void Temperature::init() {
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TERN_(MAX6675_IS_MAX31865, max31865.begin(MAX31865_2WIRE)); // MAX31865_2WIRE, MAX31865_3WIRE, MAX31865_4WIRE
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TERN_(MAX6675_0_IS_MAX31865, max31865_0.begin(MAX31865_2WIRE)); // MAX31865_2WIRE, MAX31865_3WIRE, MAX31865_4WIRE
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TERN_(MAX6675_1_IS_MAX31865, max31865_1.begin(MAX31865_2WIRE));
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#if EARLY_WATCHDOG
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// Flag that the thermalManager should be running
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@ -2200,50 +2209,64 @@ void Temperature::disable_all_heaters() {
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#define THERMOCOUPLE_MAX_ERRORS 15
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#endif
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int Temperature::read_max6675(
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#if COUNT_6675 > 1
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const uint8_t hindex
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#endif
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) {
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#if COUNT_6675 == 1
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constexpr uint8_t hindex = 0;
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#else
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// Needed to return the correct temp when this is called too soon
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static uint16_t max6675_temp_previous[COUNT_6675] = { 0 };
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#endif
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static uint8_t max6675_errors[COUNT_6675] = { 0 };
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int Temperature::read_max6675(TERN_(HAS_MULTI_6675, const uint8_t hindex/*=0*/)) {
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#define MAX6675_HEAT_INTERVAL 250UL
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#if MAX6675_IS_MAX31855
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#if MAX6675_0_IS_MAX31855 || MAX6675_1_IS_MAX31855
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static uint32_t max6675_temp = 2000;
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#define MAX6675_ERROR_MASK 7
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#define MAX6675_DISCARD_BITS 18
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#define MAX6675_SPEED_BITS 3 // (_BV(SPR1)) // clock ÷ 64
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#define MAX6675_SPEED_BITS 3 // (_BV(SPR1)) // clock ÷ 64
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#elif HAS_MAX31865
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static uint16_t max6675_temp = 2000; // From datasheet 16 bits D15-D0
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#define MAX6675_ERROR_MASK 1 // D0 Bit not used
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#define MAX6675_DISCARD_BITS 1 // Data is in D15-D1
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#define MAX6675_SPEED_BITS 3 // (_BV(SPR1)) // clock ÷ 64
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#else
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static uint16_t max6675_temp = 2000;
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#define MAX6675_ERROR_MASK 4
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#define MAX6675_DISCARD_BITS 3
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#define MAX6675_SPEED_BITS 2 // (_BV(SPR0)) // clock ÷ 16
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#define MAX6675_SPEED_BITS 2 // (_BV(SPR0)) // clock ÷ 16
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#endif
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#if HAS_MULTI_6675
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// Needed to return the correct temp when this is called between readings
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static uint16_t max6675_temp_previous[COUNT_6675] = { 0 };
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#define MAX6675_TEMP(I) max6675_temp_previous[I]
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#define MAX6675_SEL(A,B) (hindex ? (B) : (A))
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#define MAX6675_WRITE(V) do{ switch (hindex) { case 1: WRITE(MAX6675_SS2_PIN, V); break; default: WRITE(MAX6675_SS_PIN, V); } }while(0)
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#define MAX6675_SET_OUTPUT() do{ switch (hindex) { case 1: SET_OUTPUT(MAX6675_SS2_PIN); break; default: SET_OUTPUT(MAX6675_SS_PIN); } }while(0)
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#else
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constexpr uint8_t hindex = 0;
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#define MAX6675_TEMP(I) max6675_temp
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#if MAX6675_1_IS_MAX31865
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#define MAX6675_SEL(A,B) B
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#else
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#define MAX6675_SEL(A,B) A
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#endif
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#if HEATER_0_USES_MAX6675
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#define MAX6675_WRITE(V) WRITE(MAX6675_SS_PIN, V)
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#define MAX6675_SET_OUTPUT() SET_OUTPUT(MAX6675_SS_PIN)
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#else
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#define MAX6675_WRITE(V) WRITE(MAX6675_SS2_PIN, V)
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#define MAX6675_SET_OUTPUT() SET_OUTPUT(MAX6675_SS2_PIN)
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#endif
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#endif
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static uint8_t max6675_errors[COUNT_6675] = { 0 };
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// Return last-read value between readings
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static millis_t next_max6675_ms[COUNT_6675] = { 0 };
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millis_t ms = millis();
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if (PENDING(ms, next_max6675_ms[hindex]))
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return int(
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#if COUNT_6675 == 1
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max6675_temp
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#else
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max6675_temp_previous[hindex] // Need to return the correct previous value
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#endif
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);
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if (PENDING(ms, next_max6675_ms[hindex])) return int(MAX6675_TEMP(hindex));
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next_max6675_ms[hindex] = ms + MAX6675_HEAT_INTERVAL;
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#if MAX6675_IS_MAX31865
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max6675_temp = int(max31865.temperature(MAX31865_SENSOR_OHMS, MAX31865_CALIBRATION_OHMS));
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#if HAS_MAX31865
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Adafruit_MAX31865 &maxref = MAX6675_SEL(max31865_0, max31865_1);
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max6675_temp = int(maxref.temperature(
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MAX6675_SEL(MAX31865_SENSOR_OHMS_0, MAX31865_SENSOR_OHMS_1),
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MAX6675_SEL(MAX31865_CALIBRATION_OHMS_0, MAX31865_CALIBRATION_OHMS_1)
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));
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#endif
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//
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@ -2254,39 +2277,24 @@ void Temperature::disable_all_heaters() {
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spiInit(MAX6675_SPEED_BITS);
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#endif
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#if COUNT_6675 > 1
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#define WRITE_MAX6675(V) do{ switch (hindex) { case 1: WRITE(MAX6675_SS2_PIN, V); break; default: WRITE(MAX6675_SS_PIN, V); } }while(0)
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#define SET_OUTPUT_MAX6675() do{ switch (hindex) { case 1: SET_OUTPUT(MAX6675_SS2_PIN); break; default: SET_OUTPUT(MAX6675_SS_PIN); } }while(0)
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#elif HEATER_1_USES_MAX6675
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#define WRITE_MAX6675(V) WRITE(MAX6675_SS2_PIN, V)
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#define SET_OUTPUT_MAX6675() SET_OUTPUT(MAX6675_SS2_PIN)
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#else
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#define WRITE_MAX6675(V) WRITE(MAX6675_SS_PIN, V)
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#define SET_OUTPUT_MAX6675() SET_OUTPUT(MAX6675_SS_PIN)
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#endif
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SET_OUTPUT_MAX6675();
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WRITE_MAX6675(LOW); // enable TT_MAX6675
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MAX6675_SET_OUTPUT();
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MAX6675_WRITE(LOW); // enable TT_MAX6675
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DELAY_NS(100); // Ensure 100ns delay
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// Read a big-endian temperature value
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max6675_temp = 0;
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for (uint8_t i = sizeof(max6675_temp); i--;) {
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max6675_temp |= (
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#if MAX6675_SEPARATE_SPI
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max6675_spi.receive()
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#else
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spiRec()
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#endif
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);
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max6675_temp |= TERN(MAX6675_SEPARATE_SPI, max6675_spi.receive(), spiRec());
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if (i > 0) max6675_temp <<= 8; // shift left if not the last byte
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}
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WRITE_MAX6675(HIGH); // disable TT_MAX6675
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MAX6675_WRITE(HIGH); // disable TT_MAX6675
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if (DISABLED(IGNORE_THERMOCOUPLE_ERRORS) && (max6675_temp & MAX6675_ERROR_MASK)) {
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max6675_errors[hindex] += 1;
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const uint8_t fault_31865 = TERN1(HAS_MAX31865, maxref.readFault());
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if (DISABLED(IGNORE_THERMOCOUPLE_ERRORS) && (max6675_temp & MAX6675_ERROR_MASK) && fault_31865) {
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max6675_errors[hindex]++;
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if (max6675_errors[hindex] > THERMOCOUPLE_MAX_ERRORS) {
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SERIAL_ERROR_START();
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SERIAL_ECHOPGM("Temp measurement error! ");
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@ -2298,18 +2306,29 @@ void Temperature::disable_all_heaters() {
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SERIAL_ECHOLNPGM("Short to GND");
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else if (max6675_temp & 4)
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SERIAL_ECHOLNPGM("Short to VCC");
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#elif HAS_MAX31865
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if (fault_31865) {
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maxref.clearFault();
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SERIAL_ECHOPAIR("MAX31865 Fault :(", fault_31865, ") >>");
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if (fault_31865 & MAX31865_FAULT_HIGHTHRESH)
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SERIAL_ECHOLNPGM("RTD High Threshold");
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else if (fault_31865 & MAX31865_FAULT_LOWTHRESH)
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SERIAL_ECHOLNPGM("RTD Low Threshold");
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else if (fault_31865 & MAX31865_FAULT_REFINLOW)
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SERIAL_ECHOLNPGM("REFIN- > 0.85 x Bias");
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else if (fault_31865 & MAX31865_FAULT_REFINHIGH)
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SERIAL_ECHOLNPGM("REFIN- < 0.85 x Bias - FORCE- open");
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else if (fault_31865 & MAX31865_FAULT_RTDINLOW)
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SERIAL_ECHOLNPGM("REFIN- < 0.85 x Bias - FORCE- open");
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else if (fault_31865 & MAX31865_FAULT_OVUV)
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SERIAL_ECHOLNPGM("Under/Over voltage");
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}
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#else
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SERIAL_ECHOLNPGM("MAX6675");
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#endif
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// Thermocouple open
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max6675_temp = 4 * (
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#if COUNT_6675 > 1
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hindex ? HEATER_1_MAX6675_TMAX : HEATER_0_MAX6675_TMAX
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#else
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TERN(HEATER_1_USES_MAX6675, HEATER_1_MAX6675_TMAX, HEATER_0_MAX6675_TMAX)
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#endif
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);
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max6675_temp = 4 * MAX6675_SEL(HEATER_0_MAX6675_TMAX, HEATER_1_MAX6675_TMAX);
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}
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else
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max6675_temp >>= MAX6675_DISCARD_BITS;
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@ -2319,13 +2338,11 @@ void Temperature::disable_all_heaters() {
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max6675_errors[hindex] = 0;
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}
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#if ENABLED(MAX6675_IS_MAX31855)
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#if MAX6675_0_IS_MAX31855 || MAX6675_1_IS_MAX31855
|
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if (max6675_temp & 0x00002000) max6675_temp |= 0xFFFFC000; // Support negative temperature
|
||||
#endif
|
||||
|
||||
#if COUNT_6675 > 1
|
||||
max6675_temp_previous[hindex] = max6675_temp;
|
||||
#endif
|
||||
MAX6675_TEMP(hindex) = max6675_temp;
|
||||
|
||||
return int(max6675_temp);
|
||||
}
|
||||
|
||||
@ -811,7 +811,7 @@ class Temperature {
|
||||
#if HAS_MAX6675
|
||||
#define COUNT_6675 1 + BOTH(HEATER_0_USES_MAX6675, HEATER_1_USES_MAX6675)
|
||||
#if COUNT_6675 > 1
|
||||
#define HAS_MULTI_6675
|
||||
#define HAS_MULTI_6675 1
|
||||
#define READ_MAX6675(N) read_max6675(N)
|
||||
#else
|
||||
#define READ_MAX6675(N) read_max6675()
|
||||
|
||||
@ -55,10 +55,10 @@ extern "C"{
|
||||
*----------------------------------------------------------------------------*/
|
||||
|
||||
// Number of pins defined in PinDescription array
|
||||
#define PINS_COUNT (79U)
|
||||
#define NUM_DIGITAL_PINS (66U)
|
||||
#define NUM_ANALOG_INPUTS (12U)
|
||||
#define analogInputToDigitalPin(p) ((p < 12U) ? (p) + 54U : -1)
|
||||
#define PINS_COUNT 79
|
||||
#define NUM_DIGITAL_PINS 66
|
||||
#define NUM_ANALOG_INPUTS 12
|
||||
#define analogInputToDigitalPin(p) ((p < 12) ? (p) + 54 : -1)
|
||||
|
||||
#define digitalPinToPort(P) ( g_APinDescription[P].pPort )
|
||||
#define digitalPinToBitMask(P) ( g_APinDescription[P].ulPin )
|
||||
|
||||
@ -222,7 +222,7 @@ HAS_L64XX = Arduino-L6470@0.8.0
|
||||
src_filter=+<src/libs/L64XX> +<src/module/stepper/L64xx.cpp> +<src/gcode/feature/L6470>
|
||||
NEOPIXEL_LED = Adafruit NeoPixel@1.5.0
|
||||
src_filter=+<src/feature/leds/neopixel.cpp>
|
||||
MAX6675_IS_MAX31865 = Adafruit MAX31865 library@~1.1.0
|
||||
MAX6675_._IS_MAX31865 = Adafruit MAX31865 library@~1.1.0
|
||||
USES_LIQUIDCRYSTAL = LiquidCrystal@1.5.0
|
||||
USES_LIQUIDCRYSTAL_I2C = marcoschwartz/LiquidCrystal_I2C@1.1.4
|
||||
USES_LIQUIDTWI2 = LiquidTWI2@1.2.7
|
||||
|
||||
Loading…
Reference in New Issue
Block a user