301 lines
9.6 KiB
C++
Executable File
301 lines
9.6 KiB
C++
Executable File
// fan control and check
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#include "fancheck.h"
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#include "cardreader.h"
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#include "ultralcd.h"
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#include "sound.h"
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#include "messages.h"
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#include "temperature.h"
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#include "stepper.h"
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#define FAN_CHECK_PERIOD 5000 //5s
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#define FAN_CHECK_DURATION 100 //100ms
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#ifdef FANCHECK
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volatile uint8_t fan_check_error = EFCE_OK;
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#endif
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#if (defined(EXTRUDER_0_AUTO_FAN_PIN) && EXTRUDER_0_AUTO_FAN_PIN > -1)
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#ifdef EXTRUDER_ALTFAN_DETECT
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static struct
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{
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uint8_t isAltfan : 1;
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uint8_t altfanOverride : 1;
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} altfanStatus;
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#endif //EXTRUDER_ALTFAN_DETECT
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unsigned long extruder_autofan_last_check = _millis();
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bool fan_measuring = false;
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static uint8_t fanState = 0;
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#endif
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#if (defined(EXTRUDER_0_AUTO_FAN_PIN) && EXTRUDER_0_AUTO_FAN_PIN > -1)
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#if defined(FAN_PIN) && FAN_PIN > -1
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#if EXTRUDER_0_AUTO_FAN_PIN == FAN_PIN
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#error "You cannot set EXTRUDER_0_AUTO_FAN_PIN equal to FAN_PIN"
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#endif
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#endif
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void setExtruderAutoFanState(uint8_t state)
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{
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//If bit 1 is set (0x02), then the hotend fan speed won't be adjusted according to temperature. Useful for forcing
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//the fan to either On or Off during certain tests/errors.
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fanState = state;
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newFanSpeed = 0;
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if (fanState & 0x01)
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{
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#ifdef EXTRUDER_ALTFAN_DETECT
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if (altfanStatus.isAltfan && !altfanStatus.altfanOverride) newFanSpeed = EXTRUDER_ALTFAN_SPEED_SILENT;
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else newFanSpeed = EXTRUDER_AUTO_FAN_SPEED;
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#else //EXTRUDER_ALTFAN_DETECT
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newFanSpeed = EXTRUDER_AUTO_FAN_SPEED;
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#endif //EXTRUDER_ALTFAN_DETECT
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}
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timer4_set_fan0(newFanSpeed);
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}
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#if (defined(FANCHECK) && (((defined(TACH_0) && (TACH_0 >-1)) || (defined(TACH_1) && (TACH_1 > -1)))))
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void countFanSpeed()
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{
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//SERIAL_ECHOPGM("edge counter 1:"); MYSERIAL.println(fan_edge_counter[1]);
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fan_speed[0] = (fan_edge_counter[0] * (float(250) / (_millis() - extruder_autofan_last_check)));
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fan_speed[1] = (fan_edge_counter[1] * (float(250) / (_millis() - extruder_autofan_last_check)));
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/*SERIAL_ECHOPGM("time interval: "); MYSERIAL.println(_millis() - extruder_autofan_last_check);
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SERIAL_ECHOPGM("hotend fan speed:"); MYSERIAL.print(fan_speed[0]); SERIAL_ECHOPGM("; edge counter:"); MYSERIAL.println(fan_edge_counter[0]);
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SERIAL_ECHOPGM("print fan speed:"); MYSERIAL.print(fan_speed[1]); SERIAL_ECHOPGM("; edge counter:"); MYSERIAL.println(fan_edge_counter[1]);
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SERIAL_ECHOLNPGM(" ");*/
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fan_edge_counter[0] = 0;
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fan_edge_counter[1] = 0;
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}
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//! Prints serialMsg to serial port, displays lcdMsg onto the LCD and beeps.
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//! Extracted from fanSpeedError to save some space.
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//! @param serialMsg pointer into PROGMEM, this text will be printed to the serial port
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//! @param lcdMsg pointer into PROGMEM, this text will be printed onto the LCD
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static void fanSpeedErrorBeep(const char *serialMsg, const char *lcdMsg){
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SERIAL_ECHOLNRPGM(serialMsg);
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if (get_message_level() == 0) {
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Sound_MakeCustom(200,0,true);
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LCD_ALERTMESSAGERPGM(lcdMsg);
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}
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}
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void fanSpeedError(unsigned char _fan) {
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if (fan_check_error == EFCE_REPORTED) return;
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fan_check_error = EFCE_REPORTED;
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if (IS_SD_PRINTING || usb_timer.running()) {
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// A print is ongoing, pause the print normally
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if(!isPrintPaused) {
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if (usb_timer.running())
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lcd_pause_usb_print();
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else
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lcd_pause_print();
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}
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}
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else {
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// Nothing is going on, but still turn off heaters and report the error
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setTargetHotend0(0);
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heating_status = HeatingStatus::NO_HEATING;
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}
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switch (_fan) {
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case 0: // extracting the same code from case 0 and case 1 into a function saves 72B
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fanSpeedErrorBeep(PSTR("Hotend fan speed is lower than expected"), MSG_FANCHECK_HOTEND);
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break;
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case 1:
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fanSpeedErrorBeep(PSTR("Print fan speed is lower than expected"), MSG_FANCHECK_PRINT);
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break;
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}
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}
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void checkFanSpeed()
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{
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uint8_t max_fan_errors[2];
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#ifdef FAN_SOFT_PWM
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max_fan_errors[1] = 3; // 15 seconds (Print fan)
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max_fan_errors[0] = 2; // 10 seconds (Hotend fan)
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#else //FAN_SOFT_PWM
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max_fan_errors[1] = 15; // 15 seconds (Print fan)
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max_fan_errors[0] = 5; // 5 seconds (Hotend fan)
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#endif //FAN_SOFT_PWM
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if(fans_check_enabled)
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fans_check_enabled = (eeprom_read_byte((uint8_t*)EEPROM_FAN_CHECK_ENABLED) > 0);
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static uint8_t fan_speed_errors[2] = { 0,0 };
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#if (defined(FANCHECK) && defined(TACH_0) && (TACH_0 >-1))
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if ((fan_speed[0] < 20) && (current_temperature[0] > EXTRUDER_AUTO_FAN_TEMPERATURE)){ fan_speed_errors[0]++;}
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else fan_speed_errors[0] = 0;
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#endif
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#if (defined(FANCHECK) && defined(TACH_1) && (TACH_1 >-1))
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if ((fan_speed[1] < 5) && ((blocks_queued() ? block_buffer[block_buffer_tail].fan_speed : fanSpeed) > MIN_PRINT_FAN_SPEED)) fan_speed_errors[1]++;
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else fan_speed_errors[1] = 0;
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#endif
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// drop the fan_check_error flag when both fans are ok
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if( fan_speed_errors[0] == 0 && fan_speed_errors[1] == 0 && fan_check_error == EFCE_REPORTED){
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// we may even send some info to the LCD from here
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fan_check_error = EFCE_FIXED;
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}
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if ((fan_check_error == EFCE_FIXED) && !printer_active()){
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fan_check_error = EFCE_OK; //if the issue is fixed while the printer is doing nothing, reenable processing immediately.
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lcd_reset_alert_level(); //for another fan speed error
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}
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if (fans_check_enabled && (fan_check_error == EFCE_OK))
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{
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for (uint8_t fan = 0; fan < 2; fan++)
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{
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if (fan_speed_errors[fan] > max_fan_errors[fan])
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{
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fan_speed_errors[fan] = 0;
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fanSpeedError(fan);
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}
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}
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}
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}
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#endif //(defined(TACH_0) && TACH_0 >-1) || (defined(TACH_1) && TACH_1 > -1)
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#ifdef EXTRUDER_ALTFAN_DETECT
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ISR(INT6_vect) {
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fan_edge_counter[0]++;
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}
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bool extruder_altfan_detect()
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{
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setExtruderAutoFanState(3);
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SET_INPUT(TACH_0);
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uint8_t overrideVal = eeprom_read_byte((uint8_t *)EEPROM_ALTFAN_OVERRIDE);
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if (overrideVal == EEPROM_EMPTY_VALUE)
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{
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overrideVal = (calibration_status() == CALIBRATION_STATUS_CALIBRATED) ? 1 : 0;
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eeprom_update_byte((uint8_t *)EEPROM_ALTFAN_OVERRIDE, overrideVal);
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}
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altfanStatus.altfanOverride = overrideVal;
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CRITICAL_SECTION_START;
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EICRB &= ~(1 << ISC61);
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EICRB |= (1 << ISC60);
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EIMSK |= (1 << INT6);
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fan_edge_counter[0] = 0;
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CRITICAL_SECTION_END;
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extruder_autofan_last_check = _millis();
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_delay(1000);
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EIMSK &= ~(1 << INT6);
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countFanSpeed();
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altfanStatus.isAltfan = fan_speed[0] > 100;
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setExtruderAutoFanState(1);
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return altfanStatus.isAltfan;
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}
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void altfanOverride_toggle()
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{
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altfanStatus.altfanOverride = !altfanStatus.altfanOverride;
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eeprom_update_byte((uint8_t *)EEPROM_ALTFAN_OVERRIDE, altfanStatus.altfanOverride);
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}
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bool altfanOverride_get()
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{
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return altfanStatus.altfanOverride;
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}
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#endif //EXTRUDER_ALTFAN_DETECT
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void checkExtruderAutoFans()
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{
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#if defined(EXTRUDER_0_AUTO_FAN_PIN) && EXTRUDER_0_AUTO_FAN_PIN > -1
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if (!(fanState & 0x02))
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{
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fanState &= ~1;
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fanState |= current_temperature[0] > EXTRUDER_AUTO_FAN_TEMPERATURE;
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fanState |= get_temp_error();
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}
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setExtruderAutoFanState(fanState);
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#endif
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}
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#endif // any extruder auto fan pins set
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#if (defined(FANCHECK) && defined(TACH_0) && (TACH_0 > -1))
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void readFanTach() {
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#ifdef FAN_SOFT_PWM
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if (READ(TACH_0) != fan_state[0]) {
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if(fan_measuring) fan_edge_counter[0] ++;
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fan_state[0] = !fan_state[0];
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}
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#else //FAN_SOFT_PWM
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if (READ(TACH_0) != fan_state[0]) {
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fan_edge_counter[0] ++;
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fan_state[0] = !fan_state[0];
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}
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#endif
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//if (READ(TACH_1) != fan_state[1]) {
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// fan_edge_counter[1] ++;
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// fan_state[1] = !fan_state[1];
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//}
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}
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#endif //TACH_0
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void checkFans()
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{
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#ifndef DEBUG_DISABLE_FANCHECK
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#if (defined(EXTRUDER_0_AUTO_FAN_PIN) && EXTRUDER_0_AUTO_FAN_PIN > -1)
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#ifdef FAN_SOFT_PWM
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#ifdef FANCHECK
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if ((_millis() - extruder_autofan_last_check > FAN_CHECK_PERIOD) && (!fan_measuring)) {
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extruder_autofan_last_check = _millis();
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fanSpeedBckp = fanSpeedSoftPwm;
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if (fanSpeedSoftPwm >= MIN_PRINT_FAN_SPEED) { //if we are in rage where we are doing fan check, set full PWM range for a short time to measure fan RPM by reading tacho signal without modulation by PWM signal
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// printf_P(PSTR("fanSpeedSoftPwm 1: %d\n"), fanSpeedSoftPwm);
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fanSpeedSoftPwm = 255;
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}
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fan_measuring = true;
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}
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if ((_millis() - extruder_autofan_last_check > FAN_CHECK_DURATION) && (fan_measuring)) {
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countFanSpeed();
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checkFanSpeed();
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//printf_P(PSTR("fanSpeedSoftPwm 1: %d\n"), fanSpeedSoftPwm);
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fanSpeedSoftPwm = fanSpeedBckp;
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//printf_P(PSTR("fan PWM: %d; extr fanSpeed measured: %d; print fan speed measured: %d \n"), fanSpeedBckp, fan_speed[0], fan_speed[1]);
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extruder_autofan_last_check = _millis();
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fan_measuring = false;
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}
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#endif //FANCHECK
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checkExtruderAutoFans();
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#else //FAN_SOFT_PWM
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if(_millis() - extruder_autofan_last_check > 1000) // only need to check fan state very infrequently
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{
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#if (defined(FANCHECK) && ((defined(TACH_0) && (TACH_0 >-1)) || (defined(TACH_1) && (TACH_1 > -1))))
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countFanSpeed();
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checkFanSpeed();
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#endif //(defined(TACH_0) && TACH_0 >-1) || (defined(TACH_1) && TACH_1 > -1)
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checkExtruderAutoFans();
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extruder_autofan_last_check = _millis();
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}
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#endif //FAN_SOFT_PWM
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#endif
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#endif //DEBUG_DISABLE_FANCHECK
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}
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void hotendFanSetFullSpeed()
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{
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#ifdef EXTRUDER_ALTFAN_DETECT
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altfanStatus.altfanOverride = 1; //full speed
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#endif //EXTRUDER_ALTFAN_DETECT
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setExtruderAutoFanState(3);
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SET_OUTPUT(FAN_PIN);
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#ifdef FAN_SOFT_PWM
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fanSpeedSoftPwm = 255;
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#else //FAN_SOFT_PWM
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analogWrite(FAN_PIN, 255);
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#endif //FAN_SOFT_PWM
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fanSpeed = 255;
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}
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