9ba117c1bb
- Brand-new stepper algorithm. Based on the Pramod Ranade inverse time algorithm, but modified to ensure step events are exact. Currently limited to about 15kHz step rates, much more to be done to enable 30kHz again. - Removed Timer1. Stepper algorithm now uses Timer0 and Timer2. - Much improved step generation during accelerations. Smoother. Allows much higher accelerations (and speeds) than before on the same machine. - Cleaner algorithm that is more easily portable to other CPU types. - Streamlined planner calculations. Removed accelerate_until and final_rate variables from block buffer since the new stepper algorithm is that much more accurate. - Improved planner efficiency by about 15-20% during worst case scenarios (arcs). - New config.h options to tune new stepper algorithm.
100 lines
3.7 KiB
C
100 lines
3.7 KiB
C
/*
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settings.h - eeprom configuration handling
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Part of Grbl
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Copyright (c) 2009-2011 Simen Svale Skogsrud
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Copyright (c) 2011-2012 Sungeun K. Jeon
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Grbl is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Grbl is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grbl. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef settings_h
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#define settings_h
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#include <math.h>
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#include "nuts_bolts.h"
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#define GRBL_VERSION "0.9a"
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// Version of the EEPROM data. Will be used to migrate existing data from older versions of Grbl
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// when firmware is upgraded. Always stored in byte 0 of eeprom
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#define SETTINGS_VERSION 5
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// Define bit flag masks for the boolean settings in settings.flag.
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#define BITFLAG_REPORT_INCHES bit(0)
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#define BITFLAG_AUTO_START bit(1)
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#define BITFLAG_INVERT_ST_ENABLE bit(2)
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#define BITFLAG_HARD_LIMIT_ENABLE bit(3)
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#define BITFLAG_HOMING_ENABLE bit(4)
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// Define EEPROM memory address location values for Grbl settings and parameters
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// NOTE: The Atmega328p has 1KB EEPROM. The upper half is reserved for parameters and
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// the startup script. The lower half contains the global settings and space for future
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// developments.
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#define EEPROM_ADDR_GLOBAL 1
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#define EEPROM_ADDR_PARAMETERS 512
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#define EEPROM_ADDR_STARTUP_BLOCK 768
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// Define EEPROM address indexing for coordinate parameters
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#define N_COORDINATE_SYSTEM 6 // Number of supported work coordinate systems (from index 1)
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#define SETTING_INDEX_NCOORD N_COORDINATE_SYSTEM+1 // Total number of system stored (from index 0)
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// NOTE: Work coordinate indices are (0=G54, 1=G55, ... , 6=G59)
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#define SETTING_INDEX_G28 N_COORDINATE_SYSTEM // Home position 1
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#define SETTING_INDEX_G30 N_COORDINATE_SYSTEM+1 // Home position 2
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// #define SETTING_INDEX_G92 N_COORDINATE_SYSTEM+2 // Coordinate offset (G92.2,G92.3 not supported)
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// Global persistent settings (Stored from byte EEPROM_ADDR_GLOBAL onwards)
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typedef struct {
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float steps_per_mm[3];
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uint8_t microsteps;
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uint8_t pulse_microseconds;
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float default_feed_rate;
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float default_seek_rate;
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uint8_t invert_mask;
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float mm_per_arc_segment;
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float acceleration;
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float junction_deviation;
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uint8_t flags; // Contains default boolean settings
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uint8_t homing_dir_mask;
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float homing_feed_rate;
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float homing_seek_rate;
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uint16_t homing_debounce_delay;
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float homing_pulloff;
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uint8_t stepper_idle_lock_time; // If max value 255, steppers do not disable.
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uint8_t decimal_places;
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uint8_t n_arc_correction;
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// uint8_t status_report_mask; // Mask to indicate desired report data.
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} settings_t;
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extern settings_t settings;
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// Initialize the configuration subsystem (load settings from EEPROM)
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void settings_init();
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// A helper method to set new settings from command line
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uint8_t settings_store_global_setting(int parameter, float value);
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// Stores the protocol line variable as a startup line in EEPROM
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void settings_store_startup_line(uint8_t n, char *line);
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// Reads an EEPROM startup line to the protocol line variable
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uint8_t settings_read_startup_line(uint8_t n, char *line);
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// Writes selected coordinate data to EEPROM
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void settings_write_coord_data(uint8_t coord_select, float *coord_data);
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// Reads selected coordinate data from EEPROM
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uint8_t settings_read_coord_data(uint8_t coord_select, float *coord_data);
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#endif
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