76ab1b6a42
- G38.2 straight probe now supported. Rough draft. May be tweaked more as testing ramps up. - G38.2 requires at least one axis word. Multiple axis words work too. When commanded, the probe cycle will move at the last ‘F’ feed rate specified in a straight line. - During a probe cycle: If the probe pin goes low (normal high), Grbl will record that immediate position and engage a feed hold. Meaning that the CNC machine will move a little past the probe switch point, so keep federates low to stop sooner. Once stopped, Grbl will issue a move to go back to the recorded probe trigger point. - During a probe cycle: If the probe switch does not engage by the time the machine has traveled to its target coordinates, Grbl will issue an ALARM and the user will be forced to reset Grbl. (Currently G38.3 probe without error isn’t supported, but would be easy to implement later.) - After a successful probe, Grbl will send a feedback message containing the recorded probe coordinates in the machine coordinate system. This is as the g-code standard on probe parameters specifies. - The recorded probe parameters are retained in Grbl memory and can be viewed with the ‘$#’ print parameters command. Upon a power-cycle, not a soft-reset, Grbl will re-zero these values. - Moved ‘$#’ command to require IDLE or ALARM mode, because it accesses EEPROM to fetch the coordinate system offsets. - Updated the Grbl version to v0.9d. - The probe cycle is subject to change upon testing or user-feedback.
108 lines
3.9 KiB
C
108 lines
3.9 KiB
C
/*
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settings.h - eeprom configuration handling
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Part of Grbl
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Copyright (c) 2011-2014 Sungeun K. Jeon
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Copyright (c) 2009-2011 Simen Svale Skogsrud
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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 "system.h"
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#define GRBL_VERSION "0.9d"
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#define GRBL_VERSION_BUILD "20140228"
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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 6
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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 BITFLAG_SOFT_LIMIT_ENABLE bit(5)
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#define BITFLAG_INVERT_LIMIT_PINS bit(6)
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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_ADDR_BUILD_INFO 992
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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[N_AXIS];
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float max_rate[N_AXIS];
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float acceleration[N_AXIS];
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float max_travel[N_AXIS];
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uint8_t pulse_microseconds;
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float default_feed_rate;
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uint8_t step_invert_mask;
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uint8_t dir_invert_mask;
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uint8_t stepper_idle_lock_time; // If max value 255, steppers do not disable.
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float junction_deviation;
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float arc_tolerance;
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uint8_t decimal_places;
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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 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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void settings_store_build_info(char *line);
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uint8_t settings_read_build_info(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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