Method buffer_sync_block

Marlin/src/module/planner.cpp:2811–2850

* @brief Add a block to the buffer that just updates the position. * @details Supports LASER_SYNCHRONOUS_M106_M107 and LASER_POWER_SYNC power sync block buffer queueing. * * @param sync_flag The sync flag to set, determining the type of sync the block will do */

 * @param sync_flag  The sync flag to set, determining the type of sync the block will do
 */
void Planner::buffer_sync_block(const BlockFlagBit sync_flag/*=BLOCK_BIT_SYNC_POSITION*/) {

  // Wait for the next available block
  uint8_t next_buffer_head;
  block_t * const block = get_next_free_block(next_buffer_head);

  // Clear block
  block->reset();
  block->flag.apply(sync_flag);

  block->position = position;

  #if ENABLED(BACKLASH_COMPENSATION)
    LOOP_NUM_AXES(axis) block->position[axis] += backlash.get_applied_steps((AxisEnum)axis);
  #endif

  #if ENABLED(LASER_SYNCHRONOUS_M106_M107)
    FANS_LOOP(i) block->fan_speed[i] = thermalManager.fan_speed[i];
  #endif

  /**
   * M3-based power setting can be processed inline with a laser power sync block.
   * During active moves cutter.power is processed immediately, otherwise on the next move.
   */
  TERN_(LASER_POWER_SYNC, block->laser.power = cutter.power);

  // If this is the first added movement, reload the delay, otherwise, cancel it.
  if (block_buffer_head == block_buffer_tail) {
    // If it was the first queued block, restart the 1st block delivery delay, to
    // give the planner an opportunity to queue more movements and plan them
    // As there are no queued movements, the Stepper ISR will not touch this
    // variable, so there is no risk setting this here (but it MUST be done
    // before the following line!!)
    delay_before_delivering = TERN0(FT_MOTION, ftMotion.cfg.active) ? BLOCK_DELAY_NONE : BLOCK_DELAY_FOR_1ST_MOVE;
  }

  block_buffer_head = next_buffer_head;

  stepper.wake_up();
} // buffer_sync_block()

/**
 * @brief Add a single linear movement.