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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 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 <https://www.gnu.org/licenses/>.
- *
- */
-
- #include "../../inc/MarlinConfig.h"
-
- #if HAS_CUTTER
-
- #include "../gcode.h"
- #include "../../feature/spindle_laser.h"
- #include "../../module/planner.h"
-
- /**
- * Laser:
- * M3 - Laser ON/Power (Ramped power)
- * M4 - Laser ON/Power (Ramped power)
- * M5 - Set power output to 0 (leaving inline mode unchanged).
- *
- * M3I - Enable continuous inline power to be processed by the planner, with power
- * calculated and set in the planner blocks, processed inline during stepping.
- * Within inline mode M3 S-Values will set the power for the next moves e.g. G1 X10 Y10 powers on with the last S-Value.
- * M3I must be set before using planner-synced M3 inline S-Values (LASER_POWER_SYNC).
- *
- * M4I - Set dynamic mode which calculates laser power OCR based on the current feedrate.
- *
- * M5I - Clear inline mode and set power to 0.
- *
- * Spindle:
- * M3 - Spindle ON (Clockwise)
- * M4 - Spindle ON (Counter-clockwise)
- * M5 - Spindle OFF
- *
- * Parameters:
- * S<power> - Set power. S0 will turn the spindle/laser off.
- *
- * If no PWM pin is defined then M3/M4 just turns it on or off.
- *
- * At least 12.8kHz (50Hz * 256) is needed for Spindle PWM.
- * Hardware PWM is required on AVR. ISRs are too slow.
- *
- * NOTE: WGM for timers 3, 4, and 5 must be either Mode 1 or Mode 5.
- * No other settings give a PWM signal that goes from 0 to 5 volts.
- *
- * The system automatically sets WGM to Mode 1, so no special
- * initialization is needed.
- *
- * WGM bits for timer 2 are automatically set by the system to
- * Mode 1. This produces an acceptable 0 to 5 volt signal.
- * No special initialization is needed.
- *
- * NOTE: A minimum PWM frequency of 50 Hz is needed. All prescaler
- * factors for timers 2, 3, 4, and 5 are acceptable.
- *
- * SPINDLE_LASER_ENA_PIN needs an external pullup or it may power on
- * the spindle/laser during power-up or when connecting to the host
- * (usually goes through a reset which sets all I/O pins to tri-state)
- *
- * PWM duty cycle goes from 0 (off) to 255 (always on).
- */
- void GcodeSuite::M3_M4(const bool is_M4) {
- #if LASER_SAFETY_TIMEOUT_MS > 0
- reset_stepper_timeout(); // Reset timeout to allow subsequent G-code to power the laser (imm.)
- #endif
-
- if (cutter.cutter_mode == CUTTER_MODE_STANDARD)
- planner.synchronize(); // Wait for previous movement commands (G0/G1/G2/G3) to complete before changing power
-
- #if ENABLED(LASER_FEATURE)
- if (parser.seen_test('I')) {
- cutter.cutter_mode = is_M4 ? CUTTER_MODE_DYNAMIC : CUTTER_MODE_CONTINUOUS;
- cutter.inline_power(0);
- cutter.set_enabled(true);
- }
- #endif
-
- auto get_s_power = [] {
- float u;
- if (parser.seenval('S')) {
- const float v = parser.value_float();
- u = TERN(LASER_POWER_TRAP, v, cutter.power_to_range(v));
- }
- else if (cutter.cutter_mode == CUTTER_MODE_STANDARD)
- u = cutter.cpwr_to_upwr(SPEED_POWER_STARTUP);
-
- cutter.menuPower = cutter.unitPower = u;
-
- // PWM not implied, power converted to OCR from unit definition and on/off if not PWM.
- cutter.power = TERN(SPINDLE_LASER_USE_PWM, cutter.upower_to_ocr(u), u > 0 ? 255 : 0);
- return u;
- };
-
- if (cutter.cutter_mode == CUTTER_MODE_CONTINUOUS || cutter.cutter_mode == CUTTER_MODE_DYNAMIC) { // Laser power in inline mode
- #if ENABLED(LASER_FEATURE)
- planner.laser_inline.status.isPowered = true; // M3 or M4 is powered either way
- get_s_power(); // Update cutter.power if seen
- #if ENABLED(LASER_POWER_SYNC)
- // With power sync we only set power so it does not effect queued inline power sets
- planner.buffer_sync_block(BLOCK_BIT_LASER_PWR); // Send the flag, queueing inline power
- #else
- planner.synchronize();
- cutter.inline_power(cutter.power);
- #endif
- #endif
- }
- else {
- cutter.set_enabled(true);
- get_s_power();
- cutter.apply_power(
- #if ENABLED(SPINDLE_SERVO)
- cutter.unitPower
- #elif ENABLED(SPINDLE_LASER_USE_PWM)
- cutter.upower_to_ocr(cutter.unitPower)
- #else
- cutter.unitPower > 0 ? 255 : 0
- #endif
- );
- TERN_(SPINDLE_CHANGE_DIR, cutter.set_reverse(is_M4));
- }
- }
-
- /**
- * M5 - Cutter OFF (when moves are complete)
- */
- void GcodeSuite::M5() {
- planner.synchronize();
- cutter.power = 0;
- cutter.apply_power(0); // M5 just kills power, leaving inline mode unchanged
- if (cutter.cutter_mode != CUTTER_MODE_STANDARD) {
- if (parser.seen_test('I')) {
- TERN_(LASER_FEATURE, cutter.inline_power(cutter.power));
- cutter.set_enabled(false); // Needs to happen while we are in inline mode to clear inline power.
- cutter.cutter_mode = CUTTER_MODE_STANDARD; // Switch from inline to standard mode.
- }
- }
- cutter.set_enabled(false); // Disable enable output setting
- }
-
- #endif // HAS_CUTTER
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