87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "../../inc/MarlinConfig.h"
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#if HAS_CUTTER
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#include "../gcode.h"
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#include "../../feature/spindle_laser.h"
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#include "../../module/stepper.h"
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/**
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* M3 - Cutter ON (Clockwise)
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* M4 - Cutter ON (Counter-clockwise)
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*
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* S<power> - Set power. S0 turns it off.
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* O<ocr> - Set power and OCR
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*
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* If no PWM pin is defined then M3/M4 just turns it on.
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*
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* At least 12.8KHz (50Hz * 256) is needed for Spindle PWM.
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* Hardware PWM is required on AVR. ISRs are too slow.
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*
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* NOTE: WGM for timers 3, 4, and 5 must be either Mode 1 or Mode 5.
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* No other settings give a PWM signal that goes from 0 to 5 volts.
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*
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* The system automatically sets WGM to Mode 1, so no special
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* initialization is needed.
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*
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* WGM bits for timer 2 are automatically set by the system to
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* Mode 1. This produces an acceptable 0 to 5 volt signal.
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* No special initialization is needed.
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*
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* NOTE: A minimum PWM frequency of 50 Hz is needed. All prescaler
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* factors for timers 2, 3, 4, and 5 are acceptable.
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*
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* SPINDLE_LASER_ENA_PIN needs an external pullup or it may power on
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* the spindle/laser during power-up or when connecting to the host
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* (usually goes through a reset which sets all I/O pins to tri-state)
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*
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* PWM duty cycle goes from 0 (off) to 255 (always on).
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*/
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void GcodeSuite::M3_M4(const bool is_M4) {
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planner.synchronize(); // Wait for previous movement commands (G0/G0/G2/G3) to complete before changing power
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cutter.set_direction(is_M4);
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#if ENABLED(SPINDLE_LASER_PWM)
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if (parser.seen('O'))
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cutter.set_ocr_power(parser.value_byte()); // The OCR is a value from 0 to 255 (uint8_t)
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else
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cutter.set_power(parser.intval('S', 255));
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#else
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cutter.set_enabled(true);
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#endif
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}
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/**
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* M5 - Cutter OFF
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*/
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void GcodeSuite::M5() {
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planner.synchronize();
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cutter.set_enabled(false);
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}
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#endif // HAS_CUTTER
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