230 lines
8.7 KiB
C
230 lines
8.7 KiB
C
/*
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settings.c - eeprom configuration handling
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Part of Grbl
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The MIT License (MIT)
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GRBL(tm) - Embedded CNC g-code interpreter and motion-controller
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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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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <avr/io.h>
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#include "protocol.h"
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#include "report.h"
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#include "stepper.h"
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#include "nuts_bolts.h"
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#include "settings.h"
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#include "eeprom.h"
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#include "limits.h"
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settings_t settings;
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// Version 4 outdated settings record
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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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} settings_v4_t;
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// Method to store startup lines into EEPROM
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void settings_store_startup_line(uint8_t n, char *line)
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{
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uint16_t addr = n*(LINE_BUFFER_SIZE+1)+EEPROM_ADDR_STARTUP_BLOCK;
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memcpy_to_eeprom_with_checksum(addr,(char*)line, LINE_BUFFER_SIZE);
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}
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// Method to store coord data parameters into EEPROM
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void settings_write_coord_data(uint8_t coord_select, float *coord_data)
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{
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uint16_t addr = coord_select*(sizeof(float)*N_AXIS+1) + EEPROM_ADDR_PARAMETERS;
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memcpy_to_eeprom_with_checksum(addr,(char*)coord_data, sizeof(float)*N_AXIS);
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}
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// Method to store Grbl global settings struct and version number into EEPROM
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void write_global_settings()
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{
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eeprom_put_char(0, SETTINGS_VERSION);
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memcpy_to_eeprom_with_checksum(EEPROM_ADDR_GLOBAL, (char*)&settings, sizeof(settings_t));
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}
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// Method to reset Grbl global settings back to defaults.
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void settings_reset(bool reset_all) {
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// Reset all settings or only the migration settings to the new version.
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if (reset_all) {
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settings.steps_per_mm[X_AXIS] = DEFAULT_X_STEPS_PER_MM;
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settings.steps_per_mm[Y_AXIS] = DEFAULT_Y_STEPS_PER_MM;
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settings.steps_per_mm[Z_AXIS] = DEFAULT_Z_STEPS_PER_MM;
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settings.pulse_microseconds = DEFAULT_STEP_PULSE_MICROSECONDS;
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settings.default_feed_rate = DEFAULT_FEEDRATE;
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settings.default_seek_rate = DEFAULT_RAPID_FEEDRATE;
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settings.acceleration = DEFAULT_ACCELERATION;
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settings.mm_per_arc_segment = DEFAULT_MM_PER_ARC_SEGMENT;
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settings.invert_mask = DEFAULT_STEPPING_INVERT_MASK;
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settings.junction_deviation = DEFAULT_JUNCTION_DEVIATION;
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}
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// New settings since last version
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settings.flags = 0;
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if (DEFAULT_REPORT_INCHES) { settings.flags |= BITFLAG_REPORT_INCHES; }
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if (DEFAULT_AUTO_START) { settings.flags |= BITFLAG_AUTO_START; }
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if (DEFAULT_INVERT_ST_ENABLE) { settings.flags |= BITFLAG_INVERT_ST_ENABLE; }
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if (DEFAULT_HARD_LIMIT_ENABLE) { settings.flags |= BITFLAG_HARD_LIMIT_ENABLE; }
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if (DEFAULT_HOMING_ENABLE) { settings.flags |= BITFLAG_HOMING_ENABLE; }
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settings.homing_dir_mask = DEFAULT_HOMING_DIR_MASK;
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settings.homing_feed_rate = DEFAULT_HOMING_FEEDRATE;
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settings.homing_seek_rate = DEFAULT_HOMING_RAPID_FEEDRATE;
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settings.homing_debounce_delay = DEFAULT_HOMING_DEBOUNCE_DELAY;
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settings.homing_pulloff = DEFAULT_HOMING_PULLOFF;
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settings.stepper_idle_lock_time = DEFAULT_STEPPER_IDLE_LOCK_TIME;
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settings.decimal_places = DEFAULT_DECIMAL_PLACES;
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settings.n_arc_correction = DEFAULT_N_ARC_CORRECTION;
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write_global_settings();
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}
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// Reads startup line from EEPROM. Updated pointed line string data.
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uint8_t settings_read_startup_line(uint8_t n, char *line)
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{
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uint16_t addr = n*(LINE_BUFFER_SIZE+1)+EEPROM_ADDR_STARTUP_BLOCK;
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if (!(memcpy_from_eeprom_with_checksum((char*)line, addr, LINE_BUFFER_SIZE))) {
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// Reset line with default value
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line[0] = 0;
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settings_store_startup_line(n, line);
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return(false);
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} else {
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return(true);
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}
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}
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// Read selected coordinate data from EEPROM. Updates pointed coord_data value.
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uint8_t settings_read_coord_data(uint8_t coord_select, float *coord_data)
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{
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uint16_t addr = coord_select*(sizeof(float)*N_AXIS+1) + EEPROM_ADDR_PARAMETERS;
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if (!(memcpy_from_eeprom_with_checksum((char*)coord_data, addr, sizeof(float)*N_AXIS))) {
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// Reset with default zero vector
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clear_vector_float(coord_data);
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settings_write_coord_data(coord_select,coord_data);
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return(false);
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} else {
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return(true);
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}
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}
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// Reads Grbl global settings struct from EEPROM.
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uint8_t read_global_settings() {
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// Check version-byte of eeprom
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uint8_t version = eeprom_get_char(0);
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if (version == SETTINGS_VERSION) {
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// Read settings-record and check checksum
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if (!(memcpy_from_eeprom_with_checksum((char*)&settings, EEPROM_ADDR_GLOBAL, sizeof(settings_t)))) {
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return(false);
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}
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} else {
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if (version <= 4) {
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// Migrate from settings version 4 to current version.
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if (!(memcpy_from_eeprom_with_checksum((char*)&settings, 1, sizeof(settings_v4_t)))) {
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return(false);
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}
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settings_reset(false); // Old settings ok. Write new settings only.
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} else {
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return(false);
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}
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}
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return(true);
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}
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// A helper method to set settings from command line
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uint8_t settings_store_global_setting(int parameter, float value) {
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switch(parameter) {
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case 0: case 1: case 2:
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if (value <= 0.0) { return(STATUS_SETTING_VALUE_NEG); }
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settings.steps_per_mm[parameter] = value; break;
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case 3:
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if (value < 3) { return(STATUS_SETTING_STEP_PULSE_MIN); }
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settings.pulse_microseconds = round(value); break;
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case 4: settings.default_feed_rate = value; break;
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case 5: settings.default_seek_rate = value; break;
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case 6: settings.invert_mask = trunc(value); break;
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case 7: settings.stepper_idle_lock_time = round(value); break;
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case 8: settings.acceleration = value*60*60; break; // Convert to mm/min^2 for grbl internal use.
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case 9: settings.junction_deviation = fabs(value); break;
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case 10: settings.mm_per_arc_segment = value; break;
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case 11: settings.n_arc_correction = round(value); break;
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case 12: settings.decimal_places = round(value); break;
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case 13:
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if (value) { settings.flags |= BITFLAG_REPORT_INCHES; }
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else { settings.flags &= ~BITFLAG_REPORT_INCHES; }
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break;
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case 14: // Reset to ensure change. Immediate re-init may cause problems.
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if (value) { settings.flags |= BITFLAG_AUTO_START; }
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else { settings.flags &= ~BITFLAG_AUTO_START; }
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break;
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case 15: // Reset to ensure change. Immediate re-init may cause problems.
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if (value) { settings.flags |= BITFLAG_INVERT_ST_ENABLE; }
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else { settings.flags &= ~BITFLAG_INVERT_ST_ENABLE; }
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break;
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case 16:
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if (value) { settings.flags |= BITFLAG_HARD_LIMIT_ENABLE; }
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else { settings.flags &= ~BITFLAG_HARD_LIMIT_ENABLE; }
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limits_init(); // Re-init to immediately change. NOTE: Nice to have but could be problematic later.
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break;
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case 17:
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if (value) { settings.flags |= BITFLAG_HOMING_ENABLE; }
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else { settings.flags &= ~BITFLAG_HOMING_ENABLE; }
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break;
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case 18: settings.homing_dir_mask = trunc(value); break;
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case 19: settings.homing_feed_rate = value; break;
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case 20: settings.homing_seek_rate = value; break;
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case 21: settings.homing_debounce_delay = round(value); break;
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case 22: settings.homing_pulloff = value; break;
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default:
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return(STATUS_INVALID_STATEMENT);
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}
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write_global_settings();
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return(STATUS_OK);
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}
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// Initialize the config subsystem
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void settings_init() {
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if(!read_global_settings()) {
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report_status_message(STATUS_SETTING_READ_FAIL);
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settings_reset(true);
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report_grbl_settings();
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}
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// Read all parameter data into a dummy variable. If error, reset to zero, otherwise do nothing.
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float coord_data[N_AXIS];
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uint8_t i;
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for (i=0; i<=SETTING_INDEX_NCOORD; i++) {
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if (!settings_read_coord_data(i, coord_data)) {
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report_status_message(STATUS_SETTING_READ_FAIL);
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}
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}
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// NOTE: Startup lines are handled and called by main.c at the end of initialization.
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}
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