Firmware2/Marlin/src/gcode/motion/G4.h

/**
 * Marlin 3D Printer Firmware
 * Copyright (C) 2016 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/>.
 *
 */

/**
 * G4: Dwell S<seconds> or P<milliseconds>
 */
void gcode_G4() {
  millis_t dwell_ms = 0;

  if (parser.seenval('P')) dwell_ms = parser.value_millis(); // milliseconds to wait
  if (parser.seenval('S')) dwell_ms = parser.value_millis_from_seconds(); // seconds to wait

  stepper.synchronize();

  if (!lcd_hasstatus()) LCD_MESSAGEPGM(MSG_DWELL);

  gcode.dwell(dwell_ms);
}