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Marlin_main.cpp
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Marlin_main.cpp
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/* -*- c++ -*- */
/*
Reprap firmware based on Sprinter and grbl.
Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
This firmware is a mashup between Sprinter and grbl.
(https://github.com/kliment/Sprinter)
(https://github.com/simen/grbl/tree)
It has preliminary support for Matthew Roberts advance algorithm
http://reprap.org/pipermail/reprap-dev/2011-May/003323.html
*/
#include "Marlin.h"
#include "ultralcd.h"
#include "planner.h"
#include "stepper.h"
#include "temperature.h"
#include "motion_control.h"
#include "cardreader.h"
#include "watchdog.h"
#include "ConfigurationStore.h"
#include "language.h"
#include "pins_arduino.h"
#if NUM_SERVOS > 0
#include "Servo.h"
#endif
#if defined(DIGIPOTSS_PIN) && DIGIPOTSS_PIN > -1
#include <SPI.h>
#endif
#define VERSION_STRING "1.0.0"
// look here for descriptions of gcodes: http://linuxcnc.org/handbook/gcode/g-code.html
// http://objects.reprap.org/wiki/Mendel_User_Manual:_RepRapGCodes
//Implemented Codes
//-------------------
// G0 -> G1
// G1 - Coordinated Movement X Y Z E
// G2 - CW ARC
// G3 - CCW ARC
// G4 - Dwell S<seconds> or P<milliseconds>
// G10 - retract filament according to settings of M207
// G11 - retract recover filament according to settings of M208
// G28 - Home all Axis
// G29 - Calibrate print surface with automatic Z probe
// G90 - Use Absolute Coordinates
// G91 - Use Relative Coordinates
// G92 - Set current position to cordinates given
// M Codes
// M0 - Unconditional stop - Wait for user to press a button on the LCD (Only if ULTRA_LCD is enabled)
// M1 - Same as M0
// M17 - Enable/Power all stepper motors
// M18 - Disable all stepper motors; same as M84
// M20 - List SD card
// M21 - Init SD card
// M22 - Release SD card
// M23 - Select SD file (M23 filename.g)
// M24 - Start/resume SD print
// M25 - Pause SD print
// M26 - Set SD position in bytes (M26 S12345)
// M27 - Report SD print status
// M28 - Start SD write (M28 filename.g)
// M29 - Stop SD write
// M30 - Delete file from SD (M30 filename.g)
// M31 - Output time since last M109 or SD card start to serial
// M32 - Select file and start SD print (Can be used when printing from SD card)
// M42 - Change pin status via gcode Use M42 Px Sy to set pin x to value y, when omitting Px the onboard led will be used.
// M80 - Turn on Power Supply
// M81 - Turn off Power Supply
// M82 - Set E codes absolute (default)
// M83 - Set E codes relative while in Absolute Coordinates (G90) mode
// M84 - Disable steppers until next move,
// or use S<seconds> to specify an inactivity timeout, after which the steppers will be disabled. S0 to disable the timeout.
// M85 - Set inactivity shutdown timer with parameter S<seconds>. To disable set zero (default)
// M92 - Set axis_steps_per_unit - same syntax as G92
// M104 - Set extruder target temp
// M105 - Read current temp
// M106 - Fan on
// M107 - Fan off
// M109 - Sxxx Wait for extruder current temp to reach target temp. Waits only when heating
// Rxxx Wait for extruder current temp to reach target temp. Waits when heating and cooling
// M114 - Output current position to serial port
// M115 - Capabilities string
// M117 - display message
// M119 - Output Endstop status to serial port
// M126 - Solenoid Air Valve Open (BariCUDA support by jmil)
// M127 - Solenoid Air Valve Closed (BariCUDA vent to atmospheric pressure by jmil)
// M128 - EtoP Open (BariCUDA EtoP = electricity to air pressure transducer by jmil)
// M129 - EtoP Closed (BariCUDA EtoP = electricity to air pressure transducer by jmil)
// M140 - Set bed target temp
// M190 - Sxxx Wait for bed current temp to reach target temp. Waits only when heating
// Rxxx Wait for bed current temp to reach target temp. Waits when heating and cooling
// M200 - Set filament diameter
// M201 - Set max acceleration in units/s^2 for print moves (M201 X1000 Y1000)
// M202 - Set max acceleration in units/s^2 for travel moves (M202 X1000 Y1000) Unused in Marlin!!
// M203 - Set maximum feedrate that your machine can sustain (M203 X200 Y200 Z300 E10000) in mm/sec
// M204 - Set default acceleration: S normal moves T filament only moves (M204 S3000 T7000) im mm/sec^2 also sets minimum segment time in ms (B20000) to prevent buffer underruns and M20 minimum feedrate
// M205 - advanced settings: minimum travel speed S=while printing T=travel only, B=minimum segment time X= maximum xy jerk, Z=maximum Z jerk, E=maximum E jerk
// M206 - set additional homeing offset
// M207 - set retract length S[positive mm] F[feedrate mm/sec] Z[additional zlift/hop]
// M208 - set recover=unretract length S[positive mm surplus to the M207 S*] F[feedrate mm/sec]
// M209 - S<1=true/0=false> enable automatic retract detect if the slicer did not support G10/11: every normal extrude-only move will be classified as retract depending on the direction.
// M218 - set hotend offset (in mm): T<extruder_number> X<offset_on_X> Y<offset_on_Y>
// M220 S<factor in percent>- set speed factor override percentage
// M221 S<factor in percent>- set extrude factor override percentage
// M240 - Trigger a camera to take a photograph
// M250 - Set LCD contrast C<contrast value> (value 0..63)
// M280 - set servo position absolute. P: servo index, S: angle or microseconds
// M300 - Play beepsound S<frequency Hz> P<duration ms>
// M301 - Set PID parameters P I and D
// M302 - Allow cold extrudes, or set the minimum extrude S<temperature>.
// M303 - PID relay autotune S<temperature> sets the target temperature. (default target temperature = 150C)
// M304 - Set bed PID parameters P I and D
// M400 - Finish all moves
// M500 - stores paramters in EEPROM
// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
// M502 - reverts to the default "factory settings". You still need to store them in EEPROM afterwards if you want to.
// M503 - print the current settings (from memory not from eeprom)
// M540 - Use S[0|1] to enable or disable the stop SD card print on endstop hit (requires ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
// M600 - Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
// M605 - Set dual x-carriage movement mode: S<mode> [ X<duplication x-offset> R<duplication temp offset> ]
// M907 - Set digital trimpot motor current using axis codes.
// M908 - Control digital trimpot directly.
// M350 - Set microstepping mode.
// M351 - Toggle MS1 MS2 pins directly.
// M928 - Start SD logging (M928 filename.g) - ended by M29
// M999 - Restart after being stopped by error
//Stepper Movement Variables
//===========================================================================
//=============================imported variables============================
//===========================================================================
//===========================================================================
//=============================public variables=============================
//===========================================================================
#ifdef SDSUPPORT
CardReader card;
#endif
float homing_feedrate[] = HOMING_FEEDRATE;
float z_probe_offset[] = Z_PROBE_OFFSET;
bool axis_relative_modes[] = AXIS_RELATIVE_MODES;
int feedmultiply=100; //100->1 200->2
int saved_feedmultiply;
int extrudemultiply=100; //100->1 200->2
float current_position[NUM_AXIS] = { 0.0, 0.0, 0.0, 0.0 };
float add_homeing[3]={0,0,0};
float min_pos[3] = { X_MIN_POS, Y_MIN_POS, Z_MIN_POS };
float max_pos[3] = { X_MAX_POS, Y_MAX_POS, Z_MAX_POS };
// Extruder offset
#if EXTRUDERS > 1
#ifndef DUAL_X_CARRIAGE
#define NUM_EXTRUDER_OFFSETS 2 // only in XY plane
#else
#define NUM_EXTRUDER_OFFSETS 3 // supports offsets in XYZ plane
#endif
float extruder_offset[NUM_EXTRUDER_OFFSETS][EXTRUDERS] = {
#if defined(EXTRUDER_OFFSET_X) && defined(EXTRUDER_OFFSET_Y)
EXTRUDER_OFFSET_X, EXTRUDER_OFFSET_Y
#endif
};
#endif
uint8_t active_extruder = 0;
int fanSpeed=0;
#ifdef SERVO_ENDSTOPS
int servo_endstops[] = SERVO_ENDSTOPS;
int servo_endstop_angles[] = SERVO_ENDSTOP_ANGLES;
#endif
#ifdef BARICUDA
int ValvePressure=0;
int EtoPPressure=0;
#endif
#ifdef FWRETRACT
bool autoretract_enabled=true;
bool retracted=false;
float retract_length=3, retract_feedrate=17*60, retract_zlift=0.8;
float retract_recover_length=0, retract_recover_feedrate=8*60;
#endif
#ifdef ULTIPANEL
bool powersupply = true;
#endif
#ifdef DELTA
float delta[3] = {0.0, 0.0, 0.0};
#endif
//===========================================================================
//=============================private variables=============================
//===========================================================================
const char axis_codes[NUM_AXIS] = {'X', 'Y', 'Z', 'E'};
static float destination[NUM_AXIS] = { 0.0, 0.0, 0.0, 0.0};
static float offset[3] = {0.0, 0.0, 0.0};
static float bed_level[7][7] = {
{0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0},
};
static bool home_all_axis = true;
static float feedrate = 1500.0, next_feedrate, saved_feedrate;
static long gcode_N, gcode_LastN, Stopped_gcode_LastN = 0;
static bool relative_mode = false; //Determines Absolute or Relative Coordinates
static char cmdbuffer[BUFSIZE][MAX_CMD_SIZE];
static bool fromsd[BUFSIZE];
static int bufindr = 0;
static int bufindw = 0;
static int buflen = 0;
//static int i = 0;
static char serial_char;
static int serial_count = 0;
static boolean comment_mode = false;
static char *strchr_pointer; // just a pointer to find chars in the cmd string like X, Y, Z, E, etc
const int sensitive_pins[] = SENSITIVE_PINS; // Sensitive pin list for M42
//static float tt = 0;
//static float bt = 0;
//Inactivity shutdown variables
static unsigned long previous_millis_cmd = 0;
static unsigned long max_inactive_time = 0;
static unsigned long stepper_inactive_time = DEFAULT_STEPPER_DEACTIVE_TIME*1000l;
unsigned long starttime=0;
unsigned long stoptime=0;
static uint8_t tmp_extruder;
bool Stopped=false;
#if NUM_SERVOS > 0
Servo servos[NUM_SERVOS];
#endif
bool CooldownNoWait = true;
bool target_direction;
//===========================================================================
//=============================ROUTINES=============================
//===========================================================================
void get_arc_coordinates();
bool setTargetedHotend(int code);
void serial_echopair_P(const char *s_P, float v)
{ serialprintPGM(s_P); SERIAL_ECHO(v); }
void serial_echopair_P(const char *s_P, double v)
{ serialprintPGM(s_P); SERIAL_ECHO(v); }
void serial_echopair_P(const char *s_P, unsigned long v)
{ serialprintPGM(s_P); SERIAL_ECHO(v); }
extern "C"{
extern unsigned int __bss_end;
extern unsigned int __heap_start;
extern void *__brkval;
int freeMemory() {
int free_memory;
if((int)__brkval == 0)
free_memory = ((int)&free_memory) - ((int)&__bss_end);
else
free_memory = ((int)&free_memory) - ((int)__brkval);
return free_memory;
}
}
//adds an command to the main command buffer
//thats really done in a non-safe way.
//needs overworking someday
void enquecommand(const char *cmd)
{
if(buflen < BUFSIZE)
{
//this is dangerous if a mixing of serial and this happsens
strcpy(&(cmdbuffer[bufindw][0]),cmd);
SERIAL_ECHO_START;
SERIAL_ECHOPGM("enqueing \"");
SERIAL_ECHO(cmdbuffer[bufindw]);
SERIAL_ECHOLNPGM("\"");
bufindw= (bufindw + 1)%BUFSIZE;
buflen += 1;
}
}
void enquecommand_P(const char *cmd)
{
if(buflen < BUFSIZE)
{
//this is dangerous if a mixing of serial and this happsens
strcpy_P(&(cmdbuffer[bufindw][0]),cmd);
SERIAL_ECHO_START;
SERIAL_ECHOPGM("enqueing \"");
SERIAL_ECHO(cmdbuffer[bufindw]);
SERIAL_ECHOLNPGM("\"");
bufindw= (bufindw + 1)%BUFSIZE;
buflen += 1;
}
}
void setup_killpin()
{
#if defined(KILL_PIN) && KILL_PIN > -1
pinMode(KILL_PIN,INPUT);
WRITE(KILL_PIN,HIGH);
#endif
}
void setup_photpin()
{
#if defined(PHOTOGRAPH_PIN) && PHOTOGRAPH_PIN > -1
SET_OUTPUT(PHOTOGRAPH_PIN);
WRITE(PHOTOGRAPH_PIN, LOW);
#endif
}
void setup_powerhold()
{
#if defined(SUICIDE_PIN) && SUICIDE_PIN > -1
SET_OUTPUT(SUICIDE_PIN);
WRITE(SUICIDE_PIN, HIGH);
#endif
#if defined(PS_ON_PIN) && PS_ON_PIN > -1
SET_OUTPUT(PS_ON_PIN);
WRITE(PS_ON_PIN, PS_ON_AWAKE);
#endif
}
void suicide()
{
#if defined(SUICIDE_PIN) && SUICIDE_PIN > -1
SET_OUTPUT(SUICIDE_PIN);
WRITE(SUICIDE_PIN, LOW);
#endif
}
void servo_init()
{
#if (NUM_SERVOS >= 1) && defined(SERVO0_PIN) && (SERVO0_PIN > -1)
servos[0].attach(SERVO0_PIN);
#endif
#if (NUM_SERVOS >= 2) && defined(SERVO1_PIN) && (SERVO1_PIN > -1)
servos[1].attach(SERVO1_PIN);
#endif
#if (NUM_SERVOS >= 3) && defined(SERVO2_PIN) && (SERVO2_PIN > -1)
servos[2].attach(SERVO2_PIN);
#endif
#if (NUM_SERVOS >= 4) && defined(SERVO3_PIN) && (SERVO3_PIN > -1)
servos[3].attach(SERVO3_PIN);
#endif
#if (NUM_SERVOS >= 5)
#error "TODO: enter initalisation code for more servos"
#endif
// Set position of Servo Endstops that are defined
#ifdef SERVO_ENDSTOPS
for(int8_t i = 0; i < 3; i++)
{
if(servo_endstops[i] > -1) {
servos[servo_endstops[i]].write(servo_endstop_angles[i * 2 + 1]);
}
}
#endif
}
void setup()
{
setup_killpin();
setup_powerhold();
MYSERIAL.begin(BAUDRATE);
SERIAL_PROTOCOLLNPGM("start");
SERIAL_ECHO_START;
// Check startup - does nothing if bootloader sets MCUSR to 0
byte mcu = MCUSR;
if(mcu & 1) SERIAL_ECHOLNPGM(MSG_POWERUP);
if(mcu & 2) SERIAL_ECHOLNPGM(MSG_EXTERNAL_RESET);
if(mcu & 4) SERIAL_ECHOLNPGM(MSG_BROWNOUT_RESET);
if(mcu & 8) SERIAL_ECHOLNPGM(MSG_WATCHDOG_RESET);
if(mcu & 32) SERIAL_ECHOLNPGM(MSG_SOFTWARE_RESET);
MCUSR=0;
SERIAL_ECHOPGM(MSG_MARLIN);
SERIAL_ECHOLNPGM(VERSION_STRING);
#ifdef STRING_VERSION_CONFIG_H
#ifdef STRING_CONFIG_H_AUTHOR
SERIAL_ECHO_START;
SERIAL_ECHOPGM(MSG_CONFIGURATION_VER);
SERIAL_ECHOPGM(STRING_VERSION_CONFIG_H);
SERIAL_ECHOPGM(MSG_AUTHOR);
SERIAL_ECHOLNPGM(STRING_CONFIG_H_AUTHOR);
SERIAL_ECHOPGM("Compiled: ");
SERIAL_ECHOLNPGM(__DATE__);
#endif
#endif
SERIAL_ECHO_START;
SERIAL_ECHOPGM(MSG_FREE_MEMORY);
SERIAL_ECHO(freeMemory());
SERIAL_ECHOPGM(MSG_PLANNER_BUFFER_BYTES);
SERIAL_ECHOLN((int)sizeof(block_t)*BLOCK_BUFFER_SIZE);
for(int8_t i = 0; i < BUFSIZE; i++)
{
fromsd[i] = false;
}
// loads data from EEPROM if available else uses defaults (and resets step acceleration rate)
Config_RetrieveSettings();
tp_init(); // Initialize temperature loop
plan_init(); // Initialize planner;
watchdog_init();
st_init(); // Initialize stepper, this enables interrupts!
setup_photpin();
servo_init();
lcd_init();
_delay_ms(1000); // wait 1sec to display the splash screen
#if defined(CONTROLLERFAN_PIN) && CONTROLLERFAN_PIN > -1
SET_OUTPUT(CONTROLLERFAN_PIN); //Set pin used for driver cooling fan
#endif
}
void loop()
{
if(buflen < (BUFSIZE-1))
get_command();
#ifdef SDSUPPORT
card.checkautostart(false);
#endif
if(buflen)
{
#ifdef SDSUPPORT
if(card.saving)
{
if(strstr_P(cmdbuffer[bufindr], PSTR("M29")) == NULL)
{
card.write_command(cmdbuffer[bufindr]);
if(card.logging)
{
process_commands();
}
else
{
SERIAL_PROTOCOLLNPGM(MSG_OK);
}
}
else
{
card.closefile();
SERIAL_PROTOCOLLNPGM(MSG_FILE_SAVED);
}
}
else
{
process_commands();
}
#else
process_commands();
#endif //SDSUPPORT
buflen = (buflen-1);
bufindr = (bufindr + 1)%BUFSIZE;
}
//check heater every n milliseconds
manage_heater();
manage_inactivity();
checkHitEndstops();
lcd_update();
}
void get_command()
{
while( MYSERIAL.available() > 0 && buflen < BUFSIZE) {
serial_char = MYSERIAL.read();
if(serial_char == '\n' ||
serial_char == '\r' ||
(serial_char == ':' && comment_mode == false) ||
serial_count >= (MAX_CMD_SIZE - 1) )
{
if(!serial_count) { //if empty line
comment_mode = false; //for new command
return;
}
cmdbuffer[bufindw][serial_count] = 0; //terminate string
if(!comment_mode){
comment_mode = false; //for new command
fromsd[bufindw] = false;
if(strchr(cmdbuffer[bufindw], 'N') != NULL)
{
strchr_pointer = strchr(cmdbuffer[bufindw], 'N');
gcode_N = (strtol(&cmdbuffer[bufindw][strchr_pointer - cmdbuffer[bufindw] + 1], NULL, 10));
if(gcode_N != gcode_LastN+1 && (strstr_P(cmdbuffer[bufindw], PSTR("M110")) == NULL) ) {
SERIAL_ERROR_START;
SERIAL_ERRORPGM(MSG_ERR_LINE_NO);
SERIAL_ERRORLN(gcode_LastN);
//Serial.println(gcode_N);
FlushSerialRequestResend();
serial_count = 0;
return;
}
if(strchr(cmdbuffer[bufindw], '*') != NULL)
{
byte checksum = 0;
byte count = 0;
while(cmdbuffer[bufindw][count] != '*') checksum = checksum^cmdbuffer[bufindw][count++];
strchr_pointer = strchr(cmdbuffer[bufindw], '*');
if( (int)(strtod(&cmdbuffer[bufindw][strchr_pointer - cmdbuffer[bufindw] + 1], NULL)) != checksum) {
SERIAL_ERROR_START;
SERIAL_ERRORPGM(MSG_ERR_CHECKSUM_MISMATCH);
SERIAL_ERRORLN(gcode_LastN);
FlushSerialRequestResend();
serial_count = 0;
return;
}
//if no errors, continue parsing
}
else
{
SERIAL_ERROR_START;
SERIAL_ERRORPGM(MSG_ERR_NO_CHECKSUM);
SERIAL_ERRORLN(gcode_LastN);
FlushSerialRequestResend();
serial_count = 0;
return;
}
gcode_LastN = gcode_N;
//if no errors, continue parsing
}
else // if we don't receive 'N' but still see '*'
{
if((strchr(cmdbuffer[bufindw], '*') != NULL))
{
SERIAL_ERROR_START;
SERIAL_ERRORPGM(MSG_ERR_NO_LINENUMBER_WITH_CHECKSUM);
SERIAL_ERRORLN(gcode_LastN);
serial_count = 0;
return;
}
}
if((strchr(cmdbuffer[bufindw], 'G') != NULL)){
strchr_pointer = strchr(cmdbuffer[bufindw], 'G');
switch((int)((strtod(&cmdbuffer[bufindw][strchr_pointer - cmdbuffer[bufindw] + 1], NULL)))){
case 0:
case 1:
case 2:
case 3:
if(Stopped == false) { // If printer is stopped by an error the G[0-3] codes are ignored.
#ifdef SDSUPPORT
if(card.saving)
break;
#endif //SDSUPPORT
SERIAL_PROTOCOLLNPGM(MSG_OK);
}
else {
SERIAL_ERRORLNPGM(MSG_ERR_STOPPED);
LCD_MESSAGEPGM(MSG_STOPPED);
}
break;
default:
break;
}
}
bufindw = (bufindw + 1)%BUFSIZE;
buflen += 1;
}
serial_count = 0; //clear buffer
}
else
{
if(serial_char == ';') comment_mode = true;
if(!comment_mode) cmdbuffer[bufindw][serial_count++] = serial_char;
}
}
#ifdef SDSUPPORT
if(!card.sdprinting || serial_count!=0){
return;
}
while( !card.eof() && buflen < BUFSIZE) {
int16_t n=card.get();
serial_char = (char)n;
if(serial_char == '\n' ||
serial_char == '\r' ||
(serial_char == ':' && comment_mode == false) ||
serial_count >= (MAX_CMD_SIZE - 1)||n==-1)
{
if(card.eof()){
SERIAL_PROTOCOLLNPGM(MSG_FILE_PRINTED);
stoptime=millis();
char time[30];
unsigned long t=(stoptime-starttime)/1000;
int hours, minutes;
minutes=(t/60)%60;
hours=t/60/60;
sprintf_P(time, PSTR("%i hours %i minutes"),hours, minutes);
SERIAL_ECHO_START;
SERIAL_ECHOLN(time);
lcd_setstatus(time);
card.printingHasFinished();
card.checkautostart(true);
}
if(!serial_count)
{
comment_mode = false; //for new command
return; //if empty line
}
cmdbuffer[bufindw][serial_count] = 0; //terminate string
// if(!comment_mode){
fromsd[bufindw] = true;
buflen += 1;
bufindw = (bufindw + 1)%BUFSIZE;
// }
comment_mode = false; //for new command
serial_count = 0; //clear buffer
}
else
{
if(serial_char == ';') comment_mode = true;
if(!comment_mode) cmdbuffer[bufindw][serial_count++] = serial_char;
}
}
#endif //SDSUPPORT
}
float code_value()
{
return (strtod(&cmdbuffer[bufindr][strchr_pointer - cmdbuffer[bufindr] + 1], NULL));
}
long code_value_long()
{
return (strtol(&cmdbuffer[bufindr][strchr_pointer - cmdbuffer[bufindr] + 1], NULL, 10));
}
bool code_seen(char code)
{
strchr_pointer = strchr(cmdbuffer[bufindr], code);
return (strchr_pointer != NULL); //Return True if a character was found
}
#define DEFINE_PGM_READ_ANY(type, reader) \
static inline type pgm_read_any(const type *p) \
{ return pgm_read_##reader##_near(p); }
DEFINE_PGM_READ_ANY(float, float);
DEFINE_PGM_READ_ANY(signed char, byte);
#define XYZ_CONSTS_FROM_CONFIG(type, array, CONFIG) \
static const PROGMEM type array##_P[3] = \
{ X_##CONFIG, Y_##CONFIG, Z_##CONFIG }; \
static inline type array(int axis) \
{ return pgm_read_any(&array##_P[axis]); }
XYZ_CONSTS_FROM_CONFIG(float, base_min_pos, MIN_POS);
XYZ_CONSTS_FROM_CONFIG(float, base_max_pos, MAX_POS);
XYZ_CONSTS_FROM_CONFIG(float, base_home_pos, HOME_POS);
XYZ_CONSTS_FROM_CONFIG(float, max_length, MAX_LENGTH);
XYZ_CONSTS_FROM_CONFIG(float, home_retract_mm, HOME_RETRACT_MM);
XYZ_CONSTS_FROM_CONFIG(signed char, home_dir, HOME_DIR);
#ifdef DUAL_X_CARRIAGE
#if EXTRUDERS == 1 || defined(COREXY) \
|| !defined(X2_ENABLE_PIN) || !defined(X2_STEP_PIN) || !defined(X2_DIR_PIN) \
|| !defined(X2_HOME_POS) || !defined(X2_MIN_POS) || !defined(X2_MAX_POS) \
|| !defined(X_MAX_PIN) || X_MAX_PIN < 0
#error "Missing or invalid definitions for DUAL_X_CARRIAGE mode."
#endif
#if X_HOME_DIR != -1 || X2_HOME_DIR != 1
#error "Please use canonical x-carriage assignment" // the x-carriages are defined by their homing directions
#endif
#define DXC_FULL_CONTROL_MODE 0
#define DXC_AUTO_PARK_MODE 1
#define DXC_DUPLICATION_MODE 2
static int dual_x_carriage_mode = DEFAULT_DUAL_X_CARRIAGE_MODE;
static float x_home_pos(int extruder) {
if (extruder == 0)
return base_home_pos(X_AXIS) + add_homeing[X_AXIS];
else
// In dual carriage mode the extruder offset provides an override of the
// second X-carriage offset when homed - otherwise X2_HOME_POS is used.
// This allow soft recalibration of the second extruder offset position without firmware reflash
// (through the M218 command).
return (extruder_offset[X_AXIS][1] > 0) ? extruder_offset[X_AXIS][1] : X2_HOME_POS;
}
static int x_home_dir(int extruder) {
return (extruder == 0) ? X_HOME_DIR : X2_HOME_DIR;
}
static float inactive_extruder_x_pos = X2_MAX_POS; // used in mode 0 & 1
static bool active_extruder_parked = false; // used in mode 1 & 2
static float raised_parked_position[NUM_AXIS]; // used in mode 1
static unsigned long delayed_move_time = 0; // used in mode 1
static float duplicate_extruder_x_offset = DEFAULT_DUPLICATION_X_OFFSET; // used in mode 2
static float duplicate_extruder_temp_offset = 0; // used in mode 2
bool extruder_duplication_enabled = false; // used in mode 2
#endif //DUAL_X_CARRIAGE
static void axis_is_at_home(int axis) {
#ifdef DUAL_X_CARRIAGE
if (axis == X_AXIS) {
if (active_extruder != 0) {
current_position[X_AXIS] = x_home_pos(active_extruder);
min_pos[X_AXIS] = X2_MIN_POS;
max_pos[X_AXIS] = max(extruder_offset[X_AXIS][1], X2_MAX_POS);
return;
}
else if (dual_x_carriage_mode == DXC_DUPLICATION_MODE && active_extruder == 0) {
current_position[X_AXIS] = base_home_pos(X_AXIS) + add_homeing[X_AXIS];
min_pos[X_AXIS] = base_min_pos(X_AXIS) + add_homeing[X_AXIS];
max_pos[X_AXIS] = min(base_max_pos(X_AXIS) + add_homeing[X_AXIS],
max(extruder_offset[X_AXIS][1], X2_MAX_POS) - duplicate_extruder_x_offset);
return;
}
}
#endif
current_position[axis] = base_home_pos(axis) + add_homeing[axis];
min_pos[axis] = base_min_pos(axis) + add_homeing[axis];
max_pos[axis] = base_max_pos(axis) + add_homeing[axis];
}
static void homeaxis(int axis) {
#define HOMEAXIS_DO(LETTER) \
((LETTER##_MIN_PIN > -1 && LETTER##_HOME_DIR==-1) || (LETTER##_MAX_PIN > -1 && LETTER##_HOME_DIR==1))
if (axis==X_AXIS ? HOMEAXIS_DO(X) :
axis==Y_AXIS ? HOMEAXIS_DO(Y) :
axis==Z_AXIS ? HOMEAXIS_DO(Z) :
0) {
int axis_home_dir = home_dir(axis);
#ifdef DUAL_X_CARRIAGE
if (axis == X_AXIS)
axis_home_dir = x_home_dir(active_extruder);
#endif
// Engage Servo endstop if enabled
#ifdef SERVO_ENDSTOPS
if (SERVO_ENDSTOPS[axis] > -1) {
servos[servo_endstops[axis]].write(servo_endstop_angles[axis * 2]);
}
#endif
current_position[axis] = 0;
plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);
destination[axis] = 1.5 * max_length(axis) * axis_home_dir;
feedrate = homing_feedrate[axis];
plan_buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], destination[E_AXIS], feedrate/60, active_extruder);
st_synchronize();
enable_endstops(false); // Ignore Z probe while moving away from the top microswitch.
current_position[axis] = 0;
plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);
destination[axis] = -home_retract_mm(axis) * axis_home_dir;
plan_buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], destination[E_AXIS], feedrate/60, active_extruder);
st_synchronize();
enable_endstops(true); // Stop ignoring Z probe while moving up to the top microswitch again.
destination[axis] = 2*home_retract_mm(axis) * axis_home_dir;
#ifdef DELTA
feedrate = homing_feedrate[axis]/10;
#else
feedrate = homing_feedrate[axis]/2 ;
#endif
plan_buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], destination[E_AXIS], feedrate/60, active_extruder);
st_synchronize();
axis_is_at_home(axis);
destination[axis] = current_position[axis];
feedrate = 0.0;
endstops_hit_on_purpose();
// Retract Servo endstop if enabled
#ifdef SERVO_ENDSTOPS
if (SERVO_ENDSTOPS[axis] > -1) {
servos[servo_endstops[axis]].write(servo_endstop_angles[axis * 2 + 1]);
}
#endif
}
}
#define HOMEAXIS(LETTER) homeaxis(LETTER##_AXIS)
void deploy_z_probe() {
feedrate = homing_feedrate[X_AXIS];
destination[X_AXIS] = 0;
destination[Y_AXIS] = 0;
destination[Z_AXIS] = 30;
prepare_move_raw();
feedrate = homing_feedrate[X_AXIS]/2;
destination[X_AXIS] = 0;
prepare_move_raw();
st_synchronize();
}
void retract_z_probe() {
feedrate = homing_feedrate[X_AXIS];
destination[Z_AXIS] = current_position[Z_AXIS] + 1 ;
prepare_move_raw();
destination[X_AXIS] = 0;
destination[Y_AXIS] = 0;
destination[Z_AXIS] = 30;
prepare_move_raw();
// Move the nozzle below the print surface to push the probe up.
feedrate = homing_feedrate[Z_AXIS]/2;
destination[Z_AXIS] = current_position[Z_AXIS] -1;
prepare_move_raw();
feedrate = homing_feedrate[Z_AXIS];
destination[Z_AXIS] = current_position[Z_AXIS] + 50;
prepare_move_raw();
st_synchronize();
}
float z_probe() {
feedrate = homing_feedrate[X_AXIS];
prepare_move_raw();
st_synchronize();
enable_endstops(true);
float start_z = current_position[Z_AXIS];
long start_steps = st_get_position(Z_AXIS);
feedrate = homing_feedrate[Z_AXIS]/2;
destination[Z_AXIS] = 0;
prepare_move_raw();
st_synchronize();
endstops_hit_on_purpose();
enable_endstops(false);
long stop_steps = st_get_position(Z_AXIS);
float mm = start_z -
float(start_steps - stop_steps) / axis_steps_per_unit[Z_AXIS];
current_position[Z_AXIS] = mm;
calculate_delta(current_position);
plan_set_position(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS],
current_position[E_AXIS]);
feedrate = homing_feedrate[Z_AXIS];
destination[Z_AXIS] = mm+10;
prepare_move_raw();
return mm;
}
void calibrate_print_surface(float z_offset) {
for (int y = 3; y >= -3; y--) {
int dir = y % 2 ? -1 : 1;
for (int x = -3*dir; x != 4*dir; x += dir) {
if (x*x + y*y < 11) {
destination[X_AXIS] = AUTOLEVEL_GRID * x - z_probe_offset[X_AXIS];
destination[Y_AXIS] = AUTOLEVEL_GRID * y - z_probe_offset[Y_AXIS];
bed_level[x+3][y+3] = z_probe() + z_offset;
} else {
bed_level[x+3][y+3] = 0.0;
}
}
// For unprobed positions just copy nearest neighbor.
if (abs(y) >= 3) {
bed_level[1][y+3] = bed_level[2][y+3];
bed_level[5][y+3] = bed_level[4][y+3];
}
if (abs(y) >=2) {
bed_level[0][y+3] = bed_level[1][y+3];
bed_level[6][y+3] = bed_level[5][y+3];
}
// Print calibration results for manual frame adjustment.
for (int x = -3; x <= 3; x++) {
SERIAL_PROTOCOL_F(bed_level[x+3][y+3], 3);
SERIAL_PROTOCOLPGM(" ");
}
SERIAL_ECHOLN("");
}
}
void process_commands()
{
unsigned long codenum; //throw away variable
char *starpos = NULL;
if(code_seen('G'))
{
switch((int)code_value())
{
case 0: // G0 -> G1
case 1: // G1
if(Stopped == false) {
get_coordinates(); // For X Y Z E F
prepare_move();
//ClearToSend();
return;
}
//break;
case 2: // G2 - CW ARC
if(Stopped == false) {
get_arc_coordinates();
prepare_arc_move(true);
return;
}
case 3: // G3 - CCW ARC
if(Stopped == false) {
get_arc_coordinates();
prepare_arc_move(false);
return;
}
case 4: // G4 dwell
LCD_MESSAGEPGM(MSG_DWELL);
codenum = 0;
if(code_seen('P')) codenum = code_value(); // milliseconds to wait
if(code_seen('S')) codenum = code_value() * 1000; // seconds to wait
st_synchronize();
codenum += millis(); // keep track of when we started waiting
previous_millis_cmd = millis();
while(millis() < codenum ){
manage_heater();
manage_inactivity();
lcd_update();
}
break;
#ifdef FWRETRACT
case 10: // G10 retract
if(!retracted)
{
destination[X_AXIS]=current_position[X_AXIS];
destination[Y_AXIS]=current_position[Y_AXIS];
destination[Z_AXIS]=current_position[Z_AXIS];
current_position[Z_AXIS]+=-retract_zlift;
destination[E_AXIS]=current_position[E_AXIS]-retract_length;
feedrate=retract_feedrate;
retracted=true;
prepare_move();
}
break;
case 11: // G10 retract_recover
if(!retracted)
{
destination[X_AXIS]=current_position[X_AXIS];
destination[Y_AXIS]=current_position[Y_AXIS];
destination[Z_AXIS]=current_position[Z_AXIS];
current_position[Z_AXIS]+=retract_zlift;
current_position[E_AXIS]+=-retract_recover_length;
feedrate=retract_recover_feedrate;
retracted=false;
prepare_move();
}
break;
#endif //FWRETRACT
case 28: //G28 Home all Axis one at a time
saved_feedrate = feedrate;
saved_feedmultiply = feedmultiply;
feedmultiply = 100;
previous_millis_cmd = millis();