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@ -27,6 +27,8 @@
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#include "../gcode.h"
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#include "../gcode.h"
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#include "../../module/stepper.h"
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#include "../../module/stepper.h"
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uint8_t spindle_laser_power; // = 0
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/**
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/**
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* M3: Spindle Clockwise
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* M3: Spindle Clockwise
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* M4: Spindle Counter-clockwise
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* M4: Spindle Counter-clockwise
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@ -59,10 +61,10 @@
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*/
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*/
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// Wait for spindle to come up to speed
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// Wait for spindle to come up to speed
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inline void delay_for_power_up() { gcode.dwell(SPINDLE_LASER_POWERUP_DELAY); }
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inline void delay_for_power_up() { safe_delay(SPINDLE_LASER_POWERUP_DELAY); }
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// Wait for spindle to stop turning
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// Wait for spindle to stop turning
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inline void delay_for_power_down() { gcode.dwell(SPINDLE_LASER_POWERDOWN_DELAY); }
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inline void delay_for_power_down() { safe_delay(SPINDLE_LASER_POWERDOWN_DELAY); }
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/**
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/**
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* ocr_val_mode() is used for debugging and to get the points needed to compute the RPM vs ocr_val line
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* ocr_val_mode() is used for debugging and to get the points needed to compute the RPM vs ocr_val line
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@ -70,26 +72,72 @@ inline void delay_for_power_down() { gcode.dwell(SPINDLE_LASER_POWERDOWN_DELAY);
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* it accepts inputs of 0-255
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* it accepts inputs of 0-255
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*/
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*/
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inline void ocr_val_mode() {
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inline void set_spindle_laser_ocr(const uint8_t ocr) {
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uint8_t spindle_laser_power = parser.value_byte();
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WRITE(SPINDLE_LASER_ENABLE_PIN, SPINDLE_LASER_ENABLE_INVERT); // turn spindle on (active low)
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WRITE(SPINDLE_LASER_ENABLE_PIN, SPINDLE_LASER_ENABLE_INVERT); // turn spindle on (active low)
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if (SPINDLE_LASER_PWM_INVERT) spindle_laser_power = 255 - spindle_laser_power;
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analogWrite(SPINDLE_LASER_PWM_PIN, (SPINDLE_LASER_PWM_INVERT) ? 255 - ocr : ocr);
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analogWrite(SPINDLE_LASER_PWM_PIN, spindle_laser_power);
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}
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}
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void GcodeSuite::M3_M4(bool is_M3) {
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#if ENABLED(SPINDLE_LASER_PWM)
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planner.synchronize(); // wait until previous movement commands (G0/G0/G2/G3) have completed before playing with the spindle
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void update_spindle_laser_power() {
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#if SPINDLE_DIR_CHANGE
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if (spindle_laser_power == 0) {
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const bool rotation_dir = (is_M3 != SPINDLE_INVERT_DIR);
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WRITE(SPINDLE_LASER_ENABLE_PIN, !SPINDLE_LASER_ENABLE_INVERT); // turn spindle off (active low)
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if (SPINDLE_STOP_ON_DIR_CHANGE \
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analogWrite(SPINDLE_LASER_PWM_PIN, SPINDLE_LASER_PWM_INVERT ? 255 : 0); // only write low byte
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&& READ(SPINDLE_LASER_ENABLE_PIN) == SPINDLE_LASER_ENABLE_INVERT \
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delay_for_power_down();
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&& READ(SPINDLE_DIR_PIN) != rotation_dir
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}
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) {
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else { // Convert RPM to PWM duty cycle
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WRITE(SPINDLE_LASER_ENABLE_PIN, !SPINDLE_LASER_ENABLE_INVERT); // turn spindle off
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constexpr float inv_slope = 1.0f / (SPEED_POWER_SLOPE),
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min_ocr = (SPEED_POWER_MIN - (SPEED_POWER_INTERCEPT)) * inv_slope, // Minimum allowed
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max_ocr = (SPEED_POWER_MAX - (SPEED_POWER_INTERCEPT)) * inv_slope; // Maximum allowed
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int16_t ocr_val;
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if (spindle_laser_power <= SPEED_POWER_MIN) ocr_val = min_ocr; // Use minimum if set below
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else if (spindle_laser_power >= SPEED_POWER_MAX) ocr_val = max_ocr; // Use maximum if set above
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else ocr_val = (spindle_laser_power - (SPEED_POWER_INTERCEPT)) * inv_slope; // Use calculated OCR value
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set_spindle_laser_ocr(ocr_val & 0xFF); // ...limited to Atmel PWM max
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delay_for_power_up();
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}
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}
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#endif // SPINDLE_LASER_PWM
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bool spindle_laser_enabled() {
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return !!spindle_laser_power; // READ(SPINDLE_LASER_ENABLE_PIN) == SPINDLE_LASER_ENABLE_INVERT;
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}
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void set_spindle_laser_enabled(const bool enable) {
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// Enabled by PWM setting elsewhere
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spindle_laser_power = enable ? 255 : 0;
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#if ENABLED(SPINDLE_LASER_PWM)
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update_spindle_laser_power();
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#else
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if (enable) {
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WRITE(SPINDLE_LASER_ENABLE_PIN, SPINDLE_LASER_ENABLE_INVERT);
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delay_for_power_up();
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}
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else {
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WRITE(SPINDLE_LASER_ENABLE_PIN, !SPINDLE_LASER_ENABLE_INVERT);
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delay_for_power_down();
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delay_for_power_down();
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}
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}
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WRITE(SPINDLE_DIR_PIN, rotation_dir);
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#endif
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}
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#if SPINDLE_DIR_CHANGE
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void set_spindle_direction(const bool reverse_dir) {
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const bool dir_state = (reverse_dir == SPINDLE_INVERT_DIR); // Forward (M3) HIGH when not inverted
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if (SPINDLE_STOP_ON_DIR_CHANGE && spindle_laser_enabled() && READ(SPINDLE_DIR_PIN) != dir_state)
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set_spindle_laser_enabled(false);
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WRITE(SPINDLE_DIR_PIN, dir_state);
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}
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#endif
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void GcodeSuite::M3_M4(const bool is_M4) {
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planner.synchronize(); // wait until previous movement commands (G0/G0/G2/G3) have completed before playing with the spindle
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#if SPINDLE_DIR_CHANGE
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set_spindle_direction(is_M4);
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#endif
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#endif
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/**
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/**
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@ -98,30 +146,16 @@ void GcodeSuite::M3_M4(bool is_M3) {
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* Then needed to AND the uint16_t result with 0x00FF to make sure we only wrote the byte of interest.
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* Then needed to AND the uint16_t result with 0x00FF to make sure we only wrote the byte of interest.
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*/
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*/
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#if ENABLED(SPINDLE_LASER_PWM)
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#if ENABLED(SPINDLE_LASER_PWM)
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if (parser.seen('O')) ocr_val_mode();
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if (parser.seen('O')) {
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spindle_laser_power = parser.value_byte();
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set_spindle_laser_ocr(spindle_laser_power);
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}
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else {
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else {
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const float spindle_laser_power = parser.floatval('S');
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spindle_laser_power = parser.intval('S', 255);
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if (spindle_laser_power == 0) {
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update_spindle_laser_power();
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WRITE(SPINDLE_LASER_ENABLE_PIN, !SPINDLE_LASER_ENABLE_INVERT); // turn spindle off (active low)
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analogWrite(SPINDLE_LASER_PWM_PIN, SPINDLE_LASER_PWM_INVERT ? 255 : 0); // only write low byte
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delay_for_power_down();
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}
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else {
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int16_t ocr_val = (spindle_laser_power - (SPEED_POWER_INTERCEPT)) * (1.0f / (SPEED_POWER_SLOPE)); // convert RPM to PWM duty cycle
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NOMORE(ocr_val, 255); // limit to max the Atmel PWM will support
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if (spindle_laser_power <= SPEED_POWER_MIN)
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ocr_val = (SPEED_POWER_MIN - (SPEED_POWER_INTERCEPT)) * (1.0f / (SPEED_POWER_SLOPE)); // minimum setting
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if (spindle_laser_power >= SPEED_POWER_MAX)
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ocr_val = (SPEED_POWER_MAX - (SPEED_POWER_INTERCEPT)) * (1.0f / (SPEED_POWER_SLOPE)); // limit to max RPM
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if (SPINDLE_LASER_PWM_INVERT) ocr_val = 255 - ocr_val;
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WRITE(SPINDLE_LASER_ENABLE_PIN, SPINDLE_LASER_ENABLE_INVERT); // turn spindle on (active low)
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analogWrite(SPINDLE_LASER_PWM_PIN, ocr_val & 0xFF); // only write low byte
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delay_for_power_up();
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}
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}
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}
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#else
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#else
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WRITE(SPINDLE_LASER_ENABLE_PIN, SPINDLE_LASER_ENABLE_INVERT); // turn spindle on (active low) if spindle speed option not enabled
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set_spindle_laser_enabled(true);
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delay_for_power_up();
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#endif
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#endif
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}
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}
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@ -130,11 +164,7 @@ void GcodeSuite::M3_M4(bool is_M3) {
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*/
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*/
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void GcodeSuite::M5() {
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void GcodeSuite::M5() {
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planner.synchronize();
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planner.synchronize();
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WRITE(SPINDLE_LASER_ENABLE_PIN, !SPINDLE_LASER_ENABLE_INVERT);
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set_spindle_laser_enabled(false);
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#if ENABLED(SPINDLE_LASER_PWM)
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analogWrite(SPINDLE_LASER_PWM_PIN, SPINDLE_LASER_PWM_INVERT ? 255 : 0);
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#endif
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delay_for_power_down();
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}
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}
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#endif // SPINDLE_LASER_ENABLE
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#endif // SPINDLE_LASER_ENABLE
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