settings.h

/*
  settings.h - eeprom configuration handling 
  Part of Grbl

  Copyright (c) 2009-2011 Simen Svale Skogsrud

  Grbl 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.

  Grbl 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 Grbl.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef settings_h
#define settings_h

#include "config.h"
#include <math.h>
#include <inttypes.h>

#define GRBL_VERSION "0.6b"

// Version of the EEPROM data. Will be used to migrate existing data from older versions of Grbl
// when firmware is upgraded. Always stored in byte 0 of eeprom
#define SETTINGS_VERSION 2

// Current global settings (persisted in EEPROM from byte 1 onwards)
typedef struct {
  double steps_per_mm[3];
  uint8_t microsteps;
  uint8_t pulse_microseconds;
  double default_feed_rate;
  double default_seek_rate;
  uint8_t invert_mask;
  double mm_per_arc_segment;
  double acceleration;
  double max_jerk;
} settings_t;
extern settings_t settings;

// Initialize the configuration subsystem (load settings from EEPROM)
void settings_init();

// Print current settings
void settings_dump();

// A helper method to set new settings from command line
void settings_store_setting(int parameter, double value);

// Default settings (used when resetting eeprom-settings)
#define MICROSTEPS 1
#define DEFAULT_X_STEPS_PER_MM 493
#define DEFAULT_Y_STEPS_PER_MM 493
#define DEFAULT_Z_STEPS_PER_MM 493
#define DEFAULT_STEP_PULSE_MICROSECONDS 15
#define DEFAULT_MM_PER_ARC_SEGMENT 0.1
#define DEFAULT_RAPID_FEEDRATE 600.0 // in millimeters per minute
#define DEFAULT_FEEDRATE 480.0
#define DEFAULT_ACCELERATION (DEFAULT_FEEDRATE/100.0)
#define DEFAULT_MAX_JERK 50.0
#define DEFAULT_STEPPING_INVERT_MASK (1<<Y_DIRECTION_BIT)|(1<<Z_DIRECTION_BIT)

#endif