100 lines
3.7 KiB
C++
100 lines
3.7 KiB
C++
/**
|
|
* Marlin 3D Printer Firmware
|
|
* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
|
|
*
|
|
* Based on Sprinter and grbl.
|
|
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* feature/spindle_laser.cpp
|
|
*/
|
|
|
|
#include "../inc/MarlinConfig.h"
|
|
|
|
#if HAS_CUTTER
|
|
|
|
#include "spindle_laser.h"
|
|
|
|
SpindleLaser cutter;
|
|
|
|
cutter_power_t SpindleLaser::power; // = 0
|
|
|
|
void SpindleLaser::init() {
|
|
OUT_WRITE(SPINDLE_LASER_ENA_PIN, !SPINDLE_LASER_ACTIVE_HIGH); // Init spindle to off
|
|
#if ENABLED(SPINDLE_CHANGE_DIR)
|
|
OUT_WRITE(SPINDLE_DIR_PIN, SPINDLE_INVERT_DIR ? 255 : 0); // Init rotation to clockwise (M3)
|
|
#endif
|
|
#if ENABLED(SPINDLE_LASER_PWM) && PIN_EXISTS(SPINDLE_LASER_PWM)
|
|
SET_PWM(SPINDLE_LASER_PWM_PIN);
|
|
analogWrite(SPINDLE_LASER_PWM_PIN, SPINDLE_LASER_PWM_INVERT ? 255 : 0); // set to lowest speed
|
|
#endif
|
|
}
|
|
|
|
#if ENABLED(SPINDLE_LASER_PWM)
|
|
|
|
/**
|
|
* ocr_val_mode() is used for debugging and to get the points needed to compute the RPM vs ocr_val line
|
|
*
|
|
* it accepts inputs of 0-255
|
|
*/
|
|
void SpindleLaser::set_ocr(const uint8_t ocr) {
|
|
WRITE(SPINDLE_LASER_ENA_PIN, SPINDLE_LASER_ACTIVE_HIGH); // turn spindle on (active low)
|
|
#if ENABLED(SPINDLE_LASER_PWM)
|
|
analogWrite(SPINDLE_LASER_PWM_PIN, (SPINDLE_LASER_PWM_INVERT) ? 255 - ocr : ocr);
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|
|
void SpindleLaser::update_output() {
|
|
const bool ena = enabled();
|
|
#if ENABLED(SPINDLE_LASER_PWM)
|
|
if (ena) {
|
|
constexpr float inv_slope = RECIPROCAL(SPEED_POWER_SLOPE),
|
|
min_ocr = (SPEED_POWER_MIN - (SPEED_POWER_INTERCEPT)) * inv_slope, // Minimum allowed
|
|
max_ocr = (SPEED_POWER_MAX - (SPEED_POWER_INTERCEPT)) * inv_slope; // Maximum allowed
|
|
int16_t ocr_val;
|
|
if (power <= SPEED_POWER_MIN) ocr_val = min_ocr; // Use minimum if set below
|
|
else if (power >= SPEED_POWER_MAX) ocr_val = max_ocr; // Use maximum if set above
|
|
else ocr_val = (power - (SPEED_POWER_INTERCEPT)) * inv_slope; // Use calculated OCR value
|
|
set_ocr(ocr_val & 0xFF); // ...limited to Atmel PWM max
|
|
}
|
|
else { // Convert RPM to PWM duty cycle
|
|
WRITE(SPINDLE_LASER_ENA_PIN, !SPINDLE_LASER_ACTIVE_HIGH); // Turn spindle off (active low)
|
|
analogWrite(SPINDLE_LASER_PWM_PIN, SPINDLE_LASER_PWM_INVERT ? 255 : 0); // Only write low byte
|
|
}
|
|
#else
|
|
WRITE(SPINDLE_LASER_ENA_PIN, ena ? SPINDLE_LASER_ACTIVE_HIGH : !SPINDLE_LASER_ACTIVE_HIGH);
|
|
#endif
|
|
power_delay(ena);
|
|
}
|
|
|
|
#if ENABLED(SPINDLE_CHANGE_DIR)
|
|
|
|
void SpindleLaser::set_direction(const bool reverse) {
|
|
const bool dir_state = (reverse == SPINDLE_INVERT_DIR); // Forward (M3) HIGH when not inverted
|
|
#if ENABLED(SPINDLE_STOP_ON_DIR_CHANGE)
|
|
if (enabled() && READ(SPINDLE_DIR_PIN) != dir_state) disable();
|
|
#endif
|
|
WRITE(SPINDLE_DIR_PIN, dir_state);
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif // HAS_CUTTER
|