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⚡️ Fix noisy ADC - 16x oversampling with 12-bit ADC (#23867)

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tombrazier 2022-03-18 03:15:26 +00:00 committed by Scott Lahteine
parent c87eded8f6
commit 260b40d145
6 changed files with 117 additions and 117 deletions
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1
Marlin/src/core/types.h
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@ -128,6 +128,7 @@ typedef float feedRate_t;
// celsius_t is the native unit of temperature. Signed to handle a disconnected thermistor value (-14). // celsius_t is the native unit of temperature. Signed to handle a disconnected thermistor value (-14).
// For more resolition (e.g., for a chocolate printer) this may later be changed to Celsius x 100 // For more resolition (e.g., for a chocolate printer) this may later be changed to Celsius x 100
// //
typedef uint16_t raw_adc_t;
typedef int16_t celsius_t; typedef int16_t celsius_t;
typedef float celsius_float_t; typedef float celsius_float_t;

22
Marlin/src/feature/joystick.cpp
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@ -68,13 +68,13 @@ Joystick joystick;
void Joystick::report() { void Joystick::report() {
SERIAL_ECHOPGM("Joystick"); SERIAL_ECHOPGM("Joystick");
#if HAS_JOY_ADC_X #if HAS_JOY_ADC_X
SERIAL_ECHOPGM_P(SP_X_STR, JOY_X(x.raw)); SERIAL_ECHOPGM_P(SP_X_STR, JOY_X(x.getraw()));
#endif #endif
#if HAS_JOY_ADC_Y #if HAS_JOY_ADC_Y
SERIAL_ECHOPGM_P(SP_Y_STR, JOY_Y(y.raw)); SERIAL_ECHOPGM_P(SP_Y_STR, JOY_Y(y.getraw()));
#endif #endif
#if HAS_JOY_ADC_Z #if HAS_JOY_ADC_Z
SERIAL_ECHOPGM_P(SP_Z_STR, JOY_Z(z.raw)); SERIAL_ECHOPGM_P(SP_Z_STR, JOY_Z(z.getraw()));
#endif #endif
#if HAS_JOY_ADC_EN #if HAS_JOY_ADC_EN
SERIAL_ECHO_TERNARY(READ(JOY_EN_PIN), " EN=", "HIGH (dis", "LOW (en", "abled)"); SERIAL_ECHO_TERNARY(READ(JOY_EN_PIN), " EN=", "HIGH (dis", "LOW (en", "abled)");
@ -91,29 +91,29 @@ Joystick joystick;
if (READ(JOY_EN_PIN)) return; if (READ(JOY_EN_PIN)) return;
#endif #endif
auto _normalize_joy = [](float &axis_jog, const int16_t raw, const int16_t (&joy_limits)[4]) { auto _normalize_joy = [](float &axis_jog, const raw_adc_t raw, const raw_adc_t (&joy_limits)[4]) {
if (WITHIN(raw, joy_limits[0], joy_limits[3])) { if (WITHIN(raw, joy_limits[0], joy_limits[3])) {
// within limits, check deadzone // within limits, check deadzone
if (raw > joy_limits[2]) if (raw > joy_limits[2])
axis_jog = (raw - joy_limits[2]) / float(joy_limits[3] - joy_limits[2]); axis_jog = (raw - joy_limits[2]) / float(joy_limits[3] - joy_limits[2]);
else if (raw < joy_limits[1]) else if (raw < joy_limits[1])
axis_jog = (raw - joy_limits[1]) / float(joy_limits[1] - joy_limits[0]); // negative value axis_jog = int16_t(raw - joy_limits[1]) / float(joy_limits[1] - joy_limits[0]); // negative value
// Map normal to jog value via quadratic relationship // Map normal to jog value via quadratic relationship
axis_jog = SIGN(axis_jog) * sq(axis_jog); axis_jog = SIGN(axis_jog) * sq(axis_jog);
} }
}; };
#if HAS_JOY_ADC_X #if HAS_JOY_ADC_X
static constexpr int16_t joy_x_limits[4] = JOY_X_LIMITS; static constexpr raw_adc_t joy_x_limits[4] = JOY_X_LIMITS;
_normalize_joy(norm_jog.x, JOY_X(x.raw), joy_x_limits); _normalize_joy(norm_jog.x, JOY_X(x.getraw()), joy_x_limits);
#endif #endif
#if HAS_JOY_ADC_Y #if HAS_JOY_ADC_Y
static constexpr int16_t joy_y_limits[4] = JOY_Y_LIMITS; static constexpr raw_adc_t joy_y_limits[4] = JOY_Y_LIMITS;
_normalize_joy(norm_jog.y, JOY_Y(y.raw), joy_y_limits); _normalize_joy(norm_jog.y, JOY_Y(y.getraw()), joy_y_limits);
#endif #endif
#if HAS_JOY_ADC_Z #if HAS_JOY_ADC_Z
static constexpr int16_t joy_z_limits[4] = JOY_Z_LIMITS; static constexpr raw_adc_t joy_z_limits[4] = JOY_Z_LIMITS;
_normalize_joy(norm_jog.z, JOY_Z(z.raw), joy_z_limits); _normalize_joy(norm_jog.z, JOY_Z(z.getraw()), joy_z_limits);
#endif #endif
} }

14
Marlin/src/lcd/marlinui.cpp
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@ -1176,7 +1176,7 @@ void MarlinUI::init() {
#if HAS_ADC_BUTTONS #if HAS_ADC_BUTTONS
typedef struct { typedef struct {
uint16_t ADCKeyValueMin, ADCKeyValueMax; raw_adc_t ADCKeyValueMin, ADCKeyValueMax;
uint8_t ADCKeyNo; uint8_t ADCKeyNo;
} _stADCKeypadTable_; } _stADCKeypadTable_;
@ -1203,10 +1203,10 @@ void MarlinUI::init() {
#endif #endif
// Calculate the ADC value for the voltage divider with specified pull-down resistor value // Calculate the ADC value for the voltage divider with specified pull-down resistor value
#define ADC_BUTTON_VALUE(r) int(HAL_ADC_RANGE * (ADC_BUTTONS_VALUE_SCALE) * r / (r + ADC_BUTTONS_R_PULLUP)) #define ADC_BUTTON_VALUE(r) raw_adc_t(HAL_ADC_RANGE * (ADC_BUTTONS_VALUE_SCALE) * r / (r + ADC_BUTTONS_R_PULLUP))
static constexpr uint16_t adc_button_tolerance = HAL_ADC_RANGE * 25 / 1024, static constexpr raw_adc_t adc_button_tolerance = HAL_ADC_RANGE * 25 / 1024,
adc_other_button = HAL_ADC_RANGE * 1000 / 1024; adc_other_button = HAL_ADC_RANGE * 1000 / 1024;
static const _stADCKeypadTable_ stADCKeyTable[] PROGMEM = { static const _stADCKeypadTable_ stADCKeyTable[] PROGMEM = {
// VALUE_MIN, VALUE_MAX, KEY // VALUE_MIN, VALUE_MAX, KEY
{ adc_other_button, HAL_ADC_RANGE, 1 + BLEN_KEYPAD_F1 }, // F1 { adc_other_button, HAL_ADC_RANGE, 1 + BLEN_KEYPAD_F1 }, // F1
@ -1226,13 +1226,13 @@ void MarlinUI::init() {
uint8_t get_ADC_keyValue() { uint8_t get_ADC_keyValue() {
if (thermalManager.ADCKey_count >= 16) { if (thermalManager.ADCKey_count >= 16) {
const uint16_t currentkpADCValue = thermalManager.current_ADCKey_raw; const raw_adc_t currentkpADCValue = thermalManager.current_ADCKey_raw;
thermalManager.current_ADCKey_raw = HAL_ADC_RANGE; thermalManager.current_ADCKey_raw = HAL_ADC_RANGE;
thermalManager.ADCKey_count = 0; thermalManager.ADCKey_count = 0;
if (currentkpADCValue < adc_other_button) if (currentkpADCValue < adc_other_button)
LOOP_L_N(i, ADC_KEY_NUM) { LOOP_L_N(i, ADC_KEY_NUM) {
const uint16_t lo = pgm_read_word(&stADCKeyTable[i].ADCKeyValueMin), const raw_adc_t lo = pgm_read_word(&stADCKeyTable[i].ADCKeyValueMin),
hi = pgm_read_word(&stADCKeyTable[i].ADCKeyValueMax); hi = pgm_read_word(&stADCKeyTable[i].ADCKeyValueMax);
if (WITHIN(currentkpADCValue, lo, hi)) return pgm_read_byte(&stADCKeyTable[i].ADCKeyNo); if (WITHIN(currentkpADCValue, lo, hi)) return pgm_read_byte(&stADCKeyTable[i].ADCKeyNo);
} }
} }

124
Marlin/src/module/temperature.cpp
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@ -437,8 +437,8 @@ PGMSTR(str_t_heating_failed, STR_T_HEATING_FAILED);
#if HAS_HEATED_BED #if HAS_HEATED_BED
bed_info_t Temperature::temp_bed; // = { 0 } bed_info_t Temperature::temp_bed; // = { 0 }
// Init min and max temp with extreme values to prevent false errors during startup // Init min and max temp with extreme values to prevent false errors during startup
int16_t Temperature::mintemp_raw_BED = TEMP_SENSOR_BED_RAW_LO_TEMP, raw_adc_t Temperature::mintemp_raw_BED = TEMP_SENSOR_BED_RAW_LO_TEMP,
Temperature::maxtemp_raw_BED = TEMP_SENSOR_BED_RAW_HI_TEMP; Temperature::maxtemp_raw_BED = TEMP_SENSOR_BED_RAW_HI_TEMP;
TERN_(WATCH_BED, bed_watch_t Temperature::watch_bed); // = { 0 } TERN_(WATCH_BED, bed_watch_t Temperature::watch_bed); // = { 0 }
IF_DISABLED(PIDTEMPBED, millis_t Temperature::next_bed_check_ms); IF_DISABLED(PIDTEMPBED, millis_t Temperature::next_bed_check_ms);
#endif #endif
@ -448,8 +448,8 @@ PGMSTR(str_t_heating_failed, STR_T_HEATING_FAILED);
#if HAS_HEATED_CHAMBER #if HAS_HEATED_CHAMBER
millis_t next_cool_check_ms_2 = 0; millis_t next_cool_check_ms_2 = 0;
celsius_float_t old_temp = 9999; celsius_float_t old_temp = 9999;
int16_t Temperature::mintemp_raw_CHAMBER = TEMP_SENSOR_CHAMBER_RAW_LO_TEMP, raw_adc_t Temperature::mintemp_raw_CHAMBER = TEMP_SENSOR_CHAMBER_RAW_LO_TEMP,
Temperature::maxtemp_raw_CHAMBER = TEMP_SENSOR_CHAMBER_RAW_HI_TEMP; Temperature::maxtemp_raw_CHAMBER = TEMP_SENSOR_CHAMBER_RAW_HI_TEMP;
TERN_(WATCH_CHAMBER, chamber_watch_t Temperature::watch_chamber{0}); TERN_(WATCH_CHAMBER, chamber_watch_t Temperature::watch_chamber{0});
IF_DISABLED(PIDTEMPCHAMBER, millis_t Temperature::next_chamber_check_ms); IF_DISABLED(PIDTEMPCHAMBER, millis_t Temperature::next_chamber_check_ms);
#endif #endif
@ -461,8 +461,8 @@ PGMSTR(str_t_heating_failed, STR_T_HEATING_FAILED);
bool flag_cooler_state; bool flag_cooler_state;
//bool flag_cooler_excess = false; //bool flag_cooler_excess = false;
celsius_float_t previous_temp = 9999; celsius_float_t previous_temp = 9999;
int16_t Temperature::mintemp_raw_COOLER = TEMP_SENSOR_COOLER_RAW_LO_TEMP, raw_adc_t Temperature::mintemp_raw_COOLER = TEMP_SENSOR_COOLER_RAW_LO_TEMP,
Temperature::maxtemp_raw_COOLER = TEMP_SENSOR_COOLER_RAW_HI_TEMP; Temperature::maxtemp_raw_COOLER = TEMP_SENSOR_COOLER_RAW_HI_TEMP;
#if WATCH_COOLER #if WATCH_COOLER
cooler_watch_t Temperature::watch_cooler{0}; cooler_watch_t Temperature::watch_cooler{0};
#endif #endif
@ -477,8 +477,8 @@ PGMSTR(str_t_heating_failed, STR_T_HEATING_FAILED);
#if HAS_TEMP_BOARD #if HAS_TEMP_BOARD
board_info_t Temperature::temp_board; // = { 0 } board_info_t Temperature::temp_board; // = { 0 }
#if ENABLED(THERMAL_PROTECTION_BOARD) #if ENABLED(THERMAL_PROTECTION_BOARD)
int16_t Temperature::mintemp_raw_BOARD = TEMP_SENSOR_BOARD_RAW_LO_TEMP, raw_adc_t Temperature::mintemp_raw_BOARD = TEMP_SENSOR_BOARD_RAW_LO_TEMP,
Temperature::maxtemp_raw_BOARD = TEMP_SENSOR_BOARD_RAW_HI_TEMP; Temperature::maxtemp_raw_BOARD = TEMP_SENSOR_BOARD_RAW_HI_TEMP;
#endif #endif
#endif #endif
@ -508,6 +508,7 @@ volatile bool Temperature::raw_temps_ready = false;
#endif #endif
#define TEMPDIR(N) ((TEMP_SENSOR_##N##_RAW_LO_TEMP) < (TEMP_SENSOR_##N##_RAW_HI_TEMP) ? 1 : -1) #define TEMPDIR(N) ((TEMP_SENSOR_##N##_RAW_LO_TEMP) < (TEMP_SENSOR_##N##_RAW_HI_TEMP) ? 1 : -1)
#define TP_CMP(S,A,B) (TEMPDIR(S) < 0 ? ((A)<(B)) : ((A)>(B)))
#if HAS_HOTEND #if HAS_HOTEND
// Init mintemp and maxtemp with extreme values to prevent false errors during startup // Init mintemp and maxtemp with extreme values to prevent false errors during startup
@ -1689,8 +1690,8 @@ void Temperature::manage_heater() {
m = (l + r) >> 1; \ m = (l + r) >> 1; \
if (!m) return celsius_t(pgm_read_word(&TBL[0].celsius)); \ if (!m) return celsius_t(pgm_read_word(&TBL[0].celsius)); \
if (m == l || m == r) return celsius_t(pgm_read_word(&TBL[LEN-1].celsius)); \ if (m == l || m == r) return celsius_t(pgm_read_word(&TBL[LEN-1].celsius)); \
int16_t v00 = pgm_read_word(&TBL[m-1].value), \ raw_adc_t v00 = pgm_read_word(&TBL[m-1].value), \
v10 = pgm_read_word(&TBL[m-0].value); \ v10 = pgm_read_word(&TBL[m-0].value); \
if (raw < v00) r = m; \ if (raw < v00) r = m; \
else if (raw > v10) l = m; \ else if (raw > v10) l = m; \
else { \ else { \
@ -1784,7 +1785,7 @@ void Temperature::manage_heater() {
SERIAL_EOL(); SERIAL_EOL();
} }
celsius_float_t Temperature::user_thermistor_to_deg_c(const uint8_t t_index, const int16_t raw) { celsius_float_t Temperature::user_thermistor_to_deg_c(const uint8_t t_index, const raw_adc_t raw) {
if (!WITHIN(t_index, 0, COUNT(user_thermistor) - 1)) return 25; if (!WITHIN(t_index, 0, COUNT(user_thermistor) - 1)) return 25;
@ -1799,8 +1800,8 @@ void Temperature::manage_heater() {
} }
// maximum adc value .. take into account the over sampling // maximum adc value .. take into account the over sampling
const int adc_max = MAX_RAW_THERMISTOR_VALUE, constexpr raw_adc_t adc_max = MAX_RAW_THERMISTOR_VALUE;
adc_raw = constrain(raw, 1, adc_max - 1); // constrain to prevent divide-by-zero const raw_adc_t adc_raw = constrain(raw, 1, adc_max - 1); // constrain to prevent divide-by-zero
const float adc_inverse = (adc_max - adc_raw) - 0.5f, const float adc_inverse = (adc_max - adc_raw) - 0.5f,
resistance = t.series_res * (adc_raw + 0.5f) / adc_inverse, resistance = t.series_res * (adc_raw + 0.5f) / adc_inverse,
@ -1820,7 +1821,7 @@ void Temperature::manage_heater() {
#if HAS_HOTEND #if HAS_HOTEND
// Derived from RepRap FiveD extruder::getTemperature() // Derived from RepRap FiveD extruder::getTemperature()
// For hot end temperature measurement. // For hot end temperature measurement.
celsius_float_t Temperature::analog_to_celsius_hotend(const int16_t raw, const uint8_t e) { celsius_float_t Temperature::analog_to_celsius_hotend(const raw_adc_t raw, const uint8_t e) {
if (e >= HOTENDS) { if (e >= HOTENDS) {
SERIAL_ERROR_START(); SERIAL_ERROR_START();
SERIAL_ECHO(e); SERIAL_ECHO(e);
@ -1836,11 +1837,11 @@ void Temperature::manage_heater() {
#elif TEMP_SENSOR_0_IS_MAX_TC #elif TEMP_SENSOR_0_IS_MAX_TC
#if TEMP_SENSOR_0_IS_MAX31865 #if TEMP_SENSOR_0_IS_MAX31865
return TERN(LIB_INTERNAL_MAX31865, return TERN(LIB_INTERNAL_MAX31865,
max31865_0.temperature((uint16_t)raw), max31865_0.temperature(raw),
max31865_0.temperature(MAX31865_SENSOR_OHMS_0, MAX31865_CALIBRATION_OHMS_0) max31865_0.temperature(MAX31865_SENSOR_OHMS_0, MAX31865_CALIBRATION_OHMS_0)
); );
#else #else
return raw * 0.25; return (int16_t)raw * 0.25;
#endif #endif
#elif TEMP_SENSOR_0_IS_AD595 #elif TEMP_SENSOR_0_IS_AD595
return TEMP_AD595(raw); return TEMP_AD595(raw);
@ -1855,11 +1856,11 @@ void Temperature::manage_heater() {
#elif TEMP_SENSOR_1_IS_MAX_TC #elif TEMP_SENSOR_1_IS_MAX_TC
#if TEMP_SENSOR_0_IS_MAX31865 #if TEMP_SENSOR_0_IS_MAX31865
return TERN(LIB_INTERNAL_MAX31865, return TERN(LIB_INTERNAL_MAX31865,
max31865_1.temperature((uint16_t)raw), max31865_1.temperature(raw),
max31865_1.temperature(MAX31865_SENSOR_OHMS_1, MAX31865_CALIBRATION_OHMS_1) max31865_1.temperature(MAX31865_SENSOR_OHMS_1, MAX31865_CALIBRATION_OHMS_1)
); );
#else #else
return raw * 0.25; return (int16_t)raw * 0.25;
#endif #endif
#elif TEMP_SENSOR_1_IS_AD595 #elif TEMP_SENSOR_1_IS_AD595
return TEMP_AD595(raw); return TEMP_AD595(raw);
@ -1943,7 +1944,7 @@ void Temperature::manage_heater() {
#if HAS_HEATED_BED #if HAS_HEATED_BED
// For bed temperature measurement. // For bed temperature measurement.
celsius_float_t Temperature::analog_to_celsius_bed(const int16_t raw) { celsius_float_t Temperature::analog_to_celsius_bed(const raw_adc_t raw) {
#if TEMP_SENSOR_BED_IS_CUSTOM #if TEMP_SENSOR_BED_IS_CUSTOM
return user_thermistor_to_deg_c(CTI_BED, raw); return user_thermistor_to_deg_c(CTI_BED, raw);
#elif TEMP_SENSOR_BED_IS_THERMISTOR #elif TEMP_SENSOR_BED_IS_THERMISTOR
@ -1961,7 +1962,7 @@ void Temperature::manage_heater() {
#if HAS_TEMP_CHAMBER #if HAS_TEMP_CHAMBER
// For chamber temperature measurement. // For chamber temperature measurement.
celsius_float_t Temperature::analog_to_celsius_chamber(const int16_t raw) { celsius_float_t Temperature::analog_to_celsius_chamber(const raw_adc_t raw) {
#if TEMP_SENSOR_CHAMBER_IS_CUSTOM #if TEMP_SENSOR_CHAMBER_IS_CUSTOM
return user_thermistor_to_deg_c(CTI_CHAMBER, raw); return user_thermistor_to_deg_c(CTI_CHAMBER, raw);
#elif TEMP_SENSOR_CHAMBER_IS_THERMISTOR #elif TEMP_SENSOR_CHAMBER_IS_THERMISTOR
@ -1979,7 +1980,7 @@ void Temperature::manage_heater() {
#if HAS_TEMP_COOLER #if HAS_TEMP_COOLER
// For cooler temperature measurement. // For cooler temperature measurement.
celsius_float_t Temperature::analog_to_celsius_cooler(const int16_t raw) { celsius_float_t Temperature::analog_to_celsius_cooler(const raw_adc_t raw) {
#if TEMP_SENSOR_COOLER_IS_CUSTOM #if TEMP_SENSOR_COOLER_IS_CUSTOM
return user_thermistor_to_deg_c(CTI_COOLER, raw); return user_thermistor_to_deg_c(CTI_COOLER, raw);
#elif TEMP_SENSOR_COOLER_IS_THERMISTOR #elif TEMP_SENSOR_COOLER_IS_THERMISTOR
@ -1997,7 +1998,7 @@ void Temperature::manage_heater() {
#if HAS_TEMP_PROBE #if HAS_TEMP_PROBE
// For probe temperature measurement. // For probe temperature measurement.
celsius_float_t Temperature::analog_to_celsius_probe(const int16_t raw) { celsius_float_t Temperature::analog_to_celsius_probe(const raw_adc_t raw) {
#if TEMP_SENSOR_PROBE_IS_CUSTOM #if TEMP_SENSOR_PROBE_IS_CUSTOM
return user_thermistor_to_deg_c(CTI_PROBE, raw); return user_thermistor_to_deg_c(CTI_PROBE, raw);
#elif TEMP_SENSOR_PROBE_IS_THERMISTOR #elif TEMP_SENSOR_PROBE_IS_THERMISTOR
@ -2015,7 +2016,7 @@ void Temperature::manage_heater() {
#if HAS_TEMP_BOARD #if HAS_TEMP_BOARD
// For motherboard temperature measurement. // For motherboard temperature measurement.
celsius_float_t Temperature::analog_to_celsius_board(const int16_t raw) { celsius_float_t Temperature::analog_to_celsius_board(const raw_adc_t raw) {
#if TEMP_SENSOR_BOARD_IS_CUSTOM #if TEMP_SENSOR_BOARD_IS_CUSTOM
return user_thermistor_to_deg_c(CTI_BOARD, raw); return user_thermistor_to_deg_c(CTI_BOARD, raw);
#elif TEMP_SENSOR_BOARD_IS_THERMISTOR #elif TEMP_SENSOR_BOARD_IS_THERMISTOR
@ -2033,13 +2034,13 @@ void Temperature::manage_heater() {
#if HAS_TEMP_REDUNDANT #if HAS_TEMP_REDUNDANT
// For redundant temperature measurement. // For redundant temperature measurement.
celsius_float_t Temperature::analog_to_celsius_redundant(const int16_t raw) { celsius_float_t Temperature::analog_to_celsius_redundant(const raw_adc_t raw) {
#if TEMP_SENSOR_REDUNDANT_IS_CUSTOM #if TEMP_SENSOR_REDUNDANT_IS_CUSTOM
return user_thermistor_to_deg_c(CTI_REDUNDANT, raw); return user_thermistor_to_deg_c(CTI_REDUNDANT, raw);
#elif TEMP_SENSOR_REDUNDANT_IS_MAX_TC && REDUNDANT_TEMP_MATCH(SOURCE, E0) #elif TEMP_SENSOR_REDUNDANT_IS_MAX_TC && REDUNDANT_TEMP_MATCH(SOURCE, E0)
return TERN(TEMP_SENSOR_REDUNDANT_IS_MAX31865, max31865_0.temperature((uint16_t)raw), raw * 0.25); return TERN(TEMP_SENSOR_REDUNDANT_IS_MAX31865, max31865_0.temperature(raw), (int16_t)raw * 0.25);
#elif TEMP_SENSOR_REDUNDANT_IS_MAX_TC && REDUNDANT_TEMP_MATCH(SOURCE, E1) #elif TEMP_SENSOR_REDUNDANT_IS_MAX_TC && REDUNDANT_TEMP_MATCH(SOURCE, E1)
return TERN(TEMP_SENSOR_REDUNDANT_IS_MAX31865, max31865_1.temperature((uint16_t)raw), raw * 0.25); return TERN(TEMP_SENSOR_REDUNDANT_IS_MAX31865, max31865_1.temperature(raw), (int16_t)raw * 0.25);
#elif TEMP_SENSOR_REDUNDANT_IS_THERMISTOR #elif TEMP_SENSOR_REDUNDANT_IS_THERMISTOR
SCAN_THERMISTOR_TABLE(TEMPTABLE_REDUNDANT, TEMPTABLE_REDUNDANT_LEN); SCAN_THERMISTOR_TABLE(TEMPTABLE_REDUNDANT, TEMPTABLE_REDUNDANT_LEN);
#elif TEMP_SENSOR_REDUNDANT_IS_AD595 #elif TEMP_SENSOR_REDUNDANT_IS_AD595
@ -2069,20 +2070,20 @@ void Temperature::updateTemperaturesFromRawValues() {
watchdog_refresh(); // Reset because raw_temps_ready was set by the interrupt watchdog_refresh(); // Reset because raw_temps_ready was set by the interrupt
TERN_(TEMP_SENSOR_0_IS_MAX_TC, temp_hotend[0].raw = READ_MAX_TC(0)); TERN_(TEMP_SENSOR_0_IS_MAX_TC, temp_hotend[0].setraw(READ_MAX_TC(0)));
TERN_(TEMP_SENSOR_1_IS_MAX_TC, temp_hotend[1].raw = READ_MAX_TC(1)); TERN_(TEMP_SENSOR_1_IS_MAX_TC, temp_hotend[1].setraw(READ_MAX_TC(1)));
TERN_(TEMP_SENSOR_REDUNDANT_IS_MAX_TC, temp_redundant.raw = READ_MAX_TC(HEATER_ID(TEMP_SENSOR_REDUNDANT_SOURCE))); TERN_(TEMP_SENSOR_REDUNDANT_IS_MAX_TC, temp_redundant.setraw(READ_MAX_TC(HEATER_ID(TEMP_SENSOR_REDUNDANT_SOURCE))));
#if HAS_HOTEND #if HAS_HOTEND
HOTEND_LOOP() temp_hotend[e].celsius = analog_to_celsius_hotend(temp_hotend[e].raw, e); HOTEND_LOOP() temp_hotend[e].celsius = analog_to_celsius_hotend(temp_hotend[e].getraw(), e);
#endif #endif
TERN_(HAS_HEATED_BED, temp_bed.celsius = analog_to_celsius_bed(temp_bed.raw)); TERN_(HAS_HEATED_BED, temp_bed.celsius = analog_to_celsius_bed(temp_bed.getraw()));
TERN_(HAS_TEMP_CHAMBER, temp_chamber.celsius = analog_to_celsius_chamber(temp_chamber.raw)); TERN_(HAS_TEMP_CHAMBER, temp_chamber.celsius = analog_to_celsius_chamber(temp_chamber.getraw()));
TERN_(HAS_TEMP_COOLER, temp_cooler.celsius = analog_to_celsius_cooler(temp_cooler.raw)); TERN_(HAS_TEMP_COOLER, temp_cooler.celsius = analog_to_celsius_cooler(temp_cooler.getraw()));
TERN_(HAS_TEMP_PROBE, temp_probe.celsius = analog_to_celsius_probe(temp_probe.raw)); TERN_(HAS_TEMP_PROBE, temp_probe.celsius = analog_to_celsius_probe(temp_probe.getraw()));
TERN_(HAS_TEMP_BOARD, temp_board.celsius = analog_to_celsius_board(temp_board.raw)); TERN_(HAS_TEMP_BOARD, temp_board.celsius = analog_to_celsius_board(temp_board.getraw()));
TERN_(HAS_TEMP_REDUNDANT, temp_redundant.celsius = analog_to_celsius_redundant(temp_redundant.raw)); TERN_(HAS_TEMP_REDUNDANT, temp_redundant.celsius = analog_to_celsius_redundant(temp_redundant.getraw()));
TERN_(FILAMENT_WIDTH_SENSOR, filwidth.update_measured_mm()); TERN_(FILAMENT_WIDTH_SENSOR, filwidth.update_measured_mm());
TERN_(HAS_POWER_MONITOR, power_monitor.capture_values()); TERN_(HAS_POWER_MONITOR, power_monitor.capture_values());
@ -2108,46 +2109,45 @@ void Temperature::updateTemperaturesFromRawValues() {
}; };
LOOP_L_N(e, COUNT(temp_dir)) { LOOP_L_N(e, COUNT(temp_dir)) {
const int8_t tdir = temp_dir[e]; const raw_adc_t r = temp_hotend[e].getraw();
if (tdir) { const bool neg = temp_dir[e] < 0, pos = temp_dir[e] > 0;
const int16_t rawtemp = temp_hotend[e].raw * tdir; // normal direction, +rawtemp, else -rawtemp if ((neg && r < temp_range[e].raw_max) || (pos && r > temp_range[e].raw_max))
if (rawtemp > temp_range[e].raw_max * tdir) max_temp_error((heater_id_t)e); max_temp_error((heater_id_t)e);
const bool heater_on = temp_hotend[e].target > 0; const bool heater_on = temp_hotend[e].target > 0;
if (heater_on && rawtemp < temp_range[e].raw_min * tdir && !is_preheating(e)) { if (heater_on && ((neg && r > temp_range[e].raw_min) || (pos && r < temp_range[e].raw_min))) {
#if MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED > 1
if (++consecutive_low_temperature_error[e] >= MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED)
#endif
min_temp_error((heater_id_t)e);
}
#if MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED > 1 #if MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED > 1
else if (++consecutive_low_temperature_error[e] >= MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED)
consecutive_low_temperature_error[e] = 0;
#endif #endif
min_temp_error((heater_id_t)e);
} }
#if MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED > 1
else
consecutive_low_temperature_error[e] = 0;
#endif
} }
#endif // HAS_HOTEND #endif // HAS_HOTEND
#define TP_CMP(S,A,B) (TEMPDIR(S) < 0 ? ((A)<(B)) : ((A)>(B))) #define TP_CMP(S,A,B) (TEMPDIR(S) < 0 ? ((A)<(B)) : ((A)>(B)))
#if ENABLED(THERMAL_PROTECTION_BED) #if ENABLED(THERMAL_PROTECTION_BED)
if (TP_CMP(BED, temp_bed.raw, maxtemp_raw_BED)) max_temp_error(H_BED); if (TP_CMP(BED, temp_bed.getraw(), maxtemp_raw_BED)) max_temp_error(H_BED);
if (temp_bed.target > 0 && TP_CMP(BED, mintemp_raw_BED, temp_bed.raw)) min_temp_error(H_BED); if (temp_bed.target > 0 && TP_CMP(BED, mintemp_raw_BED, temp_bed.getraw())) min_temp_error(H_BED);
#endif #endif
#if BOTH(HAS_HEATED_CHAMBER, THERMAL_PROTECTION_CHAMBER) #if BOTH(HAS_HEATED_CHAMBER, THERMAL_PROTECTION_CHAMBER)
if (TP_CMP(CHAMBER, temp_chamber.raw, maxtemp_raw_CHAMBER)) max_temp_error(H_CHAMBER); if (TP_CMP(CHAMBER, temp_chamber.getraw(), maxtemp_raw_CHAMBER)) max_temp_error(H_CHAMBER);
if (temp_chamber.target > 0 && TP_CMP(CHAMBER, mintemp_raw_CHAMBER, temp_chamber.raw)) min_temp_error(H_CHAMBER); if (temp_chamber.target > 0 && TP_CMP(CHAMBER, mintemp_raw_CHAMBER, temp_chamber.getraw())) min_temp_error(H_CHAMBER);
#endif #endif
#if BOTH(HAS_COOLER, THERMAL_PROTECTION_COOLER) #if BOTH(HAS_COOLER, THERMAL_PROTECTION_COOLER)
if (cutter.unitPower > 0 && TP_CMP(COOLER, temp_cooler.raw, maxtemp_raw_COOLER)) max_temp_error(H_COOLER); if (cutter.unitPower > 0 && TP_CMP(COOLER, temp_cooler.getraw(), maxtemp_raw_COOLER)) max_temp_error(H_COOLER);
if (TP_CMP(COOLER, mintemp_raw_COOLER, temp_cooler.raw)) min_temp_error(H_COOLER); if (TP_CMP(COOLER, mintemp_raw_COOLER, temp_cooler.getraw())) min_temp_error(H_COOLER);
#endif #endif
#if BOTH(HAS_TEMP_BOARD, THERMAL_PROTECTION_BOARD) #if BOTH(HAS_TEMP_BOARD, THERMAL_PROTECTION_BOARD)
if (TP_CMP(BOARD, temp_board.raw, maxtemp_raw_BOARD)) max_temp_error(H_BOARD); if (TP_CMP(BOARD, temp_board.getraw(), maxtemp_raw_BOARD)) max_temp_error(H_BOARD);
if (TP_CMP(BOARD, mintemp_raw_BOARD, temp_board.raw)) min_temp_error(H_BOARD); if (TP_CMP(BOARD, mintemp_raw_BOARD, temp_board.getraw())) min_temp_error(H_BOARD);
#endif #endif
#undef TP_CMP #undef TP_CMP
@ -2731,7 +2731,7 @@ void Temperature::disable_all_heaters() {
* @param hindex the hotend we're referencing (if MULTI_MAX_TC) * @param hindex the hotend we're referencing (if MULTI_MAX_TC)
* @return integer representing the board's buffer, to be converted later if needed * @return integer representing the board's buffer, to be converted later if needed
*/ */
int16_t Temperature::read_max_tc(TERN_(HAS_MULTI_MAX_TC, const uint8_t hindex/*=0*/)) { raw_adc_t Temperature::read_max_tc(TERN_(HAS_MULTI_MAX_TC, const uint8_t hindex/*=0*/)) {
#define MAXTC_HEAT_INTERVAL 250UL #define MAXTC_HEAT_INTERVAL 250UL
#if HAS_MAX31855 #if HAS_MAX31855
@ -2750,7 +2750,7 @@ void Temperature::disable_all_heaters() {
#if HAS_MULTI_MAX_TC #if HAS_MULTI_MAX_TC
// Needed to return the correct temp when this is called between readings // Needed to return the correct temp when this is called between readings
static int16_t max_tc_temp_previous[MAX_TC_COUNT] = { 0 }; static raw_adc_t max_tc_temp_previous[MAX_TC_COUNT] = { 0 };
#define THERMO_TEMP(I) max_tc_temp_previous[I] #define THERMO_TEMP(I) max_tc_temp_previous[I]
#define THERMO_SEL(A,B) (hindex ? (B) : (A)) #define THERMO_SEL(A,B) (hindex ? (B) : (A))
#define MAXTC_CS_WRITE(V) do{ switch (hindex) { case 1: WRITE(TEMP_1_CS_PIN, V); break; default: WRITE(TEMP_0_CS_PIN, V); } }while(0) #define MAXTC_CS_WRITE(V) do{ switch (hindex) { case 1: WRITE(TEMP_1_CS_PIN, V); break; default: WRITE(TEMP_0_CS_PIN, V); } }while(0)
@ -2779,7 +2779,7 @@ void Temperature::disable_all_heaters() {
// Return last-read value between readings // Return last-read value between readings
millis_t ms = millis(); millis_t ms = millis();
if (PENDING(ms, next_max_tc_ms[hindex])) if (PENDING(ms, next_max_tc_ms[hindex]))
return (int16_t)THERMO_TEMP(hindex); return THERMO_TEMP(hindex);
next_max_tc_ms[hindex] = ms + MAXTC_HEAT_INTERVAL; next_max_tc_ms[hindex] = ms + MAXTC_HEAT_INTERVAL;
@ -2876,7 +2876,7 @@ void Temperature::disable_all_heaters() {
THERMO_TEMP(hindex) = max_tc_temp; THERMO_TEMP(hindex) = max_tc_temp;
return (int16_t)max_tc_temp; return max_tc_temp;
} }
#endif // HAS_MAX_TC #endif // HAS_MAX_TC
@ -3017,7 +3017,7 @@ void Temperature::isr() {
uint8_t pwm_count_tmp = pwm_count; uint8_t pwm_count_tmp = pwm_count;
#if HAS_ADC_BUTTONS #if HAS_ADC_BUTTONS
static unsigned int raw_ADCKey_value = 0; static raw_adc_t raw_ADCKey_value = 0;
static bool ADCKey_pressed = false; static bool ADCKey_pressed = false;
#endif #endif

57
Marlin/src/module/temperature.h
View File

@ -192,12 +192,16 @@ enum ADCSensorState : char {
// A temperature sensor // A temperature sensor
typedef struct TempInfo { typedef struct TempInfo {
uint16_t acc; private:
int16_t raw; raw_adc_t acc;
raw_adc_t raw;
public:
celsius_float_t celsius; celsius_float_t celsius;
inline void reset() { acc = 0; } inline void reset() { acc = 0; }
inline void sample(const uint16_t s) { acc += s; } inline void sample(const raw_adc_t s) { acc += s; }
inline void update() { raw = acc; } inline void update() { raw = acc; }
void setraw(const raw_adc_t r) { raw = r; }
raw_adc_t getraw() { return raw; }
} temp_info_t; } temp_info_t;
#if HAS_TEMP_REDUNDANT #if HAS_TEMP_REDUNDANT
@ -287,9 +291,7 @@ struct HeaterWatch {
#endif #endif
// Temperature sensor read value ranges // Temperature sensor read value ranges
typedef struct { int16_t raw_min, raw_max; } raw_range_t; typedef struct { raw_adc_t raw_min, raw_max; celsius_t mintemp, maxtemp; } temp_range_t;
typedef struct { celsius_t mintemp, maxtemp; } celsius_range_t;
typedef struct { int16_t raw_min, raw_max; celsius_t mintemp, maxtemp; } temp_range_t;
#define THERMISTOR_ABS_ZERO_C -273.15f // bbbbrrrrr cold ! #define THERMISTOR_ABS_ZERO_C -273.15f // bbbbrrrrr cold !
#define THERMISTOR_RESISTANCE_NOMINAL_C 25.0f // mmmmm comfortable #define THERMISTOR_RESISTANCE_NOMINAL_C 25.0f // mmmmm comfortable
@ -492,7 +494,7 @@ class Temperature {
static bed_watch_t watch_bed; static bed_watch_t watch_bed;
#endif #endif
IF_DISABLED(PIDTEMPBED, static millis_t next_bed_check_ms); IF_DISABLED(PIDTEMPBED, static millis_t next_bed_check_ms);
static int16_t mintemp_raw_BED, maxtemp_raw_BED; static raw_adc_t mintemp_raw_BED, maxtemp_raw_BED;
#endif #endif
#if HAS_HEATED_CHAMBER #if HAS_HEATED_CHAMBER
@ -500,7 +502,7 @@ class Temperature {
static chamber_watch_t watch_chamber; static chamber_watch_t watch_chamber;
#endif #endif
TERN(PIDTEMPCHAMBER,,static millis_t next_chamber_check_ms); TERN(PIDTEMPCHAMBER,,static millis_t next_chamber_check_ms);
static int16_t mintemp_raw_CHAMBER, maxtemp_raw_CHAMBER; static raw_adc_t mintemp_raw_CHAMBER, maxtemp_raw_CHAMBER;
#endif #endif
#if HAS_COOLER #if HAS_COOLER
@ -508,11 +510,11 @@ class Temperature {
static cooler_watch_t watch_cooler; static cooler_watch_t watch_cooler;
#endif #endif
static millis_t next_cooler_check_ms, cooler_fan_flush_ms; static millis_t next_cooler_check_ms, cooler_fan_flush_ms;
static int16_t mintemp_raw_COOLER, maxtemp_raw_COOLER; static raw_adc_t mintemp_raw_COOLER, maxtemp_raw_COOLER;
#endif #endif
#if HAS_TEMP_BOARD && ENABLED(THERMAL_PROTECTION_BOARD) #if HAS_TEMP_BOARD && ENABLED(THERMAL_PROTECTION_BOARD)
static int16_t mintemp_raw_BOARD, maxtemp_raw_BOARD; static raw_adc_t mintemp_raw_BOARD, maxtemp_raw_BOARD;
#endif #endif
#if MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED > 1 #if MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED > 1
@ -566,7 +568,7 @@ class Temperature {
static user_thermistor_t user_thermistor[USER_THERMISTORS]; static user_thermistor_t user_thermistor[USER_THERMISTORS];
static void M305_report(const uint8_t t_index, const bool forReplay=true); static void M305_report(const uint8_t t_index, const bool forReplay=true);
static void reset_user_thermistors(); static void reset_user_thermistors();
static celsius_float_t user_thermistor_to_deg_c(const uint8_t t_index, const int16_t raw); static celsius_float_t user_thermistor_to_deg_c(const uint8_t t_index, const raw_adc_t raw);
static bool set_pull_up_res(int8_t t_index, float value) { static bool set_pull_up_res(int8_t t_index, float value) {
//if (!WITHIN(t_index, 0, USER_THERMISTORS - 1)) return false; //if (!WITHIN(t_index, 0, USER_THERMISTORS - 1)) return false;
if (!WITHIN(value, 1, 1000000)) return false; if (!WITHIN(value, 1, 1000000)) return false;
@ -594,25 +596,25 @@ class Temperature {
#endif #endif
#if HAS_HOTEND #if HAS_HOTEND
static celsius_float_t analog_to_celsius_hotend(const int16_t raw, const uint8_t e); static celsius_float_t analog_to_celsius_hotend(const raw_adc_t raw, const uint8_t e);
#endif #endif
#if HAS_HEATED_BED #if HAS_HEATED_BED
static celsius_float_t analog_to_celsius_bed(const int16_t raw); static celsius_float_t analog_to_celsius_bed(const raw_adc_t raw);
#endif #endif
#if HAS_TEMP_CHAMBER #if HAS_TEMP_CHAMBER
static celsius_float_t analog_to_celsius_chamber(const int16_t raw); static celsius_float_t analog_to_celsius_chamber(const raw_adc_t raw);
#endif #endif
#if HAS_TEMP_PROBE #if HAS_TEMP_PROBE
static celsius_float_t analog_to_celsius_probe(const int16_t raw); static celsius_float_t analog_to_celsius_probe(const raw_adc_t raw);
#endif #endif
#if HAS_TEMP_COOLER #if HAS_TEMP_COOLER
static celsius_float_t analog_to_celsius_cooler(const int16_t raw); static celsius_float_t analog_to_celsius_cooler(const raw_adc_t raw);
#endif #endif
#if HAS_TEMP_BOARD #if HAS_TEMP_BOARD
static celsius_float_t analog_to_celsius_board(const int16_t raw); static celsius_float_t analog_to_celsius_board(const raw_adc_t raw);
#endif #endif
#if HAS_TEMP_REDUNDANT #if HAS_TEMP_REDUNDANT
static celsius_float_t analog_to_celsius_redundant(const int16_t raw); static celsius_float_t analog_to_celsius_redundant(const raw_adc_t raw);
#endif #endif
#if HAS_FAN #if HAS_FAN
@ -707,8 +709,8 @@ class Temperature {
} }
#if ENABLED(SHOW_TEMP_ADC_VALUES) #if ENABLED(SHOW_TEMP_ADC_VALUES)
static int16_t rawHotendTemp(const uint8_t E_NAME) { static raw_adc_t rawHotendTemp(const uint8_t E_NAME) {
return TERN0(HAS_HOTEND, temp_hotend[HOTEND_INDEX].raw); return TERN0(HAS_HOTEND, temp_hotend[HOTEND_INDEX].getraw());
} }
#endif #endif
@ -770,7 +772,7 @@ class Temperature {
#if HAS_HEATED_BED #if HAS_HEATED_BED
#if ENABLED(SHOW_TEMP_ADC_VALUES) #if ENABLED(SHOW_TEMP_ADC_VALUES)
static int16_t rawBedTemp() { return temp_bed.raw; } static raw_adc_t rawBedTemp() { return temp_bed.getraw(); }
#endif #endif
static celsius_float_t degBed() { return temp_bed.celsius; } static celsius_float_t degBed() { return temp_bed.celsius; }
static celsius_t wholeDegBed() { return static_cast<celsius_t>(degBed() + 0.5f); } static celsius_t wholeDegBed() { return static_cast<celsius_t>(degBed() + 0.5f); }
@ -801,7 +803,7 @@ class Temperature {
#if HAS_TEMP_PROBE #if HAS_TEMP_PROBE
#if ENABLED(SHOW_TEMP_ADC_VALUES) #if ENABLED(SHOW_TEMP_ADC_VALUES)
static int16_t rawProbeTemp() { return temp_probe.raw; } static raw_adc_t rawProbeTemp() { return temp_probe.getraw(); }
#endif #endif
static celsius_float_t degProbe() { return temp_probe.celsius; } static celsius_float_t degProbe() { return temp_probe.celsius; }
static celsius_t wholeDegProbe() { return static_cast<celsius_t>(degProbe() + 0.5f); } static celsius_t wholeDegProbe() { return static_cast<celsius_t>(degProbe() + 0.5f); }
@ -812,7 +814,7 @@ class Temperature {
#if HAS_TEMP_CHAMBER #if HAS_TEMP_CHAMBER
#if ENABLED(SHOW_TEMP_ADC_VALUES) #if ENABLED(SHOW_TEMP_ADC_VALUES)
static int16_t rawChamberTemp() { return temp_chamber.raw; } static raw_adc_t rawChamberTemp() { return temp_chamber.getraw(); }
#endif #endif
static celsius_float_t degChamber() { return temp_chamber.celsius; } static celsius_float_t degChamber() { return temp_chamber.celsius; }
static celsius_t wholeDegChamber() { return static_cast<celsius_t>(degChamber() + 0.5f); } static celsius_t wholeDegChamber() { return static_cast<celsius_t>(degChamber() + 0.5f); }
@ -835,7 +837,7 @@ class Temperature {
#if HAS_TEMP_COOLER #if HAS_TEMP_COOLER
#if ENABLED(SHOW_TEMP_ADC_VALUES) #if ENABLED(SHOW_TEMP_ADC_VALUES)
static int16_t rawCoolerTemp() { return temp_cooler.raw; } static raw_adc_t rawCoolerTemp() { return temp_cooler.getraw(); }
#endif #endif
static celsius_float_t degCooler() { return temp_cooler.celsius; } static celsius_float_t degCooler() { return temp_cooler.celsius; }
static celsius_t wholeDegCooler() { return static_cast<celsius_t>(temp_cooler.celsius + 0.5f); } static celsius_t wholeDegCooler() { return static_cast<celsius_t>(temp_cooler.celsius + 0.5f); }
@ -849,7 +851,7 @@ class Temperature {
#if HAS_TEMP_BOARD #if HAS_TEMP_BOARD
#if ENABLED(SHOW_TEMP_ADC_VALUES) #if ENABLED(SHOW_TEMP_ADC_VALUES)
static int16_t rawBoardTemp() { return temp_board.raw; } static raw_adc_t rawBoardTemp() { return temp_board.getraw(); }
#endif #endif
static celsius_float_t degBoard() { return temp_board.celsius; } static celsius_float_t degBoard() { return temp_board.celsius; }
static celsius_t wholeDegBoard() { return static_cast<celsius_t>(temp_board.celsius + 0.5f); } static celsius_t wholeDegBoard() { return static_cast<celsius_t>(temp_board.celsius + 0.5f); }
@ -857,8 +859,7 @@ class Temperature {
#if HAS_TEMP_REDUNDANT #if HAS_TEMP_REDUNDANT
#if ENABLED(SHOW_TEMP_ADC_VALUES) #if ENABLED(SHOW_TEMP_ADC_VALUES)
static int16_t rawRedundantTemp() { return temp_redundant.raw; } static raw_adc_t rawRedundantTemp() { return temp_redundant.getraw(); }
static int16_t rawRedundanTargetTemp() { return (*temp_redundant.target).raw; }
#endif #endif
static celsius_float_t degRedundant() { return temp_redundant.celsius; } static celsius_float_t degRedundant() { return temp_redundant.celsius; }
static celsius_float_t degRedundantTarget() { return (*temp_redundant.target).celsius; } static celsius_float_t degRedundantTarget() { return (*temp_redundant.target).celsius; }
@ -991,7 +992,7 @@ class Temperature {
#else #else
#define READ_MAX_TC(N) read_max_tc() #define READ_MAX_TC(N) read_max_tc()
#endif #endif
static int16_t read_max_tc(TERN_(HAS_MULTI_MAX_TC, const uint8_t hindex=0)); static raw_adc_t read_max_tc(TERN_(HAS_MULTI_MAX_TC, const uint8_t hindex=0));
#endif #endif
#if HAS_AUTO_FAN #if HAS_AUTO_FAN

16
Marlin/src/module/thermistor/thermistors.h
View File

@ -27,22 +27,20 @@
#define THERMISTOR_TABLE_SCALE (HAL_ADC_RANGE / _BV(THERMISTOR_TABLE_ADC_RESOLUTION)) #define THERMISTOR_TABLE_SCALE (HAL_ADC_RANGE / _BV(THERMISTOR_TABLE_ADC_RESOLUTION))
#if ENABLED(HAL_ADC_FILTERED) #if ENABLED(HAL_ADC_FILTERED)
#define OVERSAMPLENR 1 #define OVERSAMPLENR 1
#elif HAL_ADC_RESOLUTION > 10
#define OVERSAMPLENR (20 - HAL_ADC_RESOLUTION)
#else #else
#define OVERSAMPLENR 16 #define OVERSAMPLENR 16
#endif #endif
#define MAX_RAW_THERMISTOR_VALUE (HAL_ADC_RANGE * (OVERSAMPLENR) - 1)
// Currently Marlin stores all oversampled ADC values as int16_t, make sure the HAL settings do not overflow 15bit // Currently Marlin stores all oversampled ADC values as uint16_t, make sure the HAL settings do not overflow 16 bit
#if MAX_RAW_THERMISTOR_VALUE > ((1 << 15) - 1) #if (HAL_ADC_RANGE) * (OVERSAMPLENR) > 1 << 16
#error "MAX_RAW_THERMISTOR_VALUE is too large for int16_t. Reduce OVERSAMPLENR or HAL_ADC_RESOLUTION." #error "MAX_RAW_THERMISTOR_VALUE is too large for uint16_t. Reduce OVERSAMPLENR or HAL_ADC_RESOLUTION."
#endif #endif
#define MAX_RAW_THERMISTOR_VALUE (uint16_t(HAL_ADC_RANGE) * (OVERSAMPLENR) - 1)
#define OV_SCALE(N) (N) #define OV_SCALE(N) float(N)
#define OV(N) int16_t(OV_SCALE(N) * (OVERSAMPLENR) * (THERMISTOR_TABLE_SCALE)) #define OV(N) raw_adc_t(OV_SCALE(N) * (OVERSAMPLENR) * (THERMISTOR_TABLE_SCALE))
typedef struct { int16_t value; celsius_t celsius; } temp_entry_t; typedef struct { raw_adc_t value; celsius_t celsius; } temp_entry_t;
// Pt1000 and Pt100 handling // Pt1000 and Pt100 handling
// //