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Marlin_main.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* 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/>.
*
*/
/**
*
* About Marlin
*
* 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"
#if ENABLED(AUTO_BED_LEVELING_FEATURE)
#include "vector_3.h"
#if ENABLED(AUTO_BED_LEVELING_GRID)
#include "qr_solve.h"
#endif
#endif // AUTO_BED_LEVELING_FEATURE
#if ENABLED(MESH_BED_LEVELING)
#include "mesh_bed_leveling.h"
#endif
#if ENABLED(BEZIER_CURVE_SUPPORT)
#include "planner_bezier.h"
#endif
#include "ultralcd.h"
#include "planner.h"
#include "stepper.h"
#include "endstops.h"
#include "temperature.h"
#include "cardreader.h"
#include "configuration_store.h"
#include "language.h"
#include "pins_arduino.h"
#include "math.h"
#include "nozzle.h"
#include "duration_t.h"
#include "types.h"
#if ENABLED(USE_WATCHDOG)
#include "watchdog.h"
#endif
#if ENABLED(BLINKM)
#include "blinkm.h"
#include "Wire.h"
#endif
#if HAS_SERVOS
#include "servo.h"
#endif
#if HAS_DIGIPOTSS
#include <SPI.h>
#endif
#if ENABLED(DAC_STEPPER_CURRENT)
#include "stepper_dac.h"
#endif
#if ENABLED(EXPERIMENTAL_I2CBUS)
#include "twibus.h"
#endif
#ifdef UARM_SWIFT
extern HardwareSerial* CommSerial;
#endif // UARM_SWIFT
/**
* Look here for descriptions of G-codes:
* - http://linuxcnc.org/handbook/gcode/g-code.html
* - http://objects.reprap.org/wiki/Mendel_User_Manual:_RepRapGCodes
*
* Help us document these G-codes online:
* - https://github.com/MarlinFirmware/Marlin/wiki/G-Code-in-Marlin
* - http://reprap.org/wiki/G-code
*
* -----------------
* Implemented Codes
* -----------------
*
* "G" Codes
*
* G0 -> G1
* G1 - Coordinated Movement X Y Z E
* G2 - CW ARC
* G3 - CCW ARC
* G4 - Dwell S<seconds> or P<milliseconds>
* G5 - Cubic B-spline with XYZE destination and IJPQ offsets
* G10 - Retract filament according to settings of M207
* G11 - Retract recover filament according to settings of M208
* G12 - Clean tool
* G20 - Set input units to inches
* G21 - Set input units to millimeters
* G28 - Home one or more axes
* G29 - Detailed Z probe, probes the bed at 3 or more points. Will fail if you haven't homed yet.
* G30 - Single Z probe, probes bed at current XY location.
* G31 - Dock sled (Z_PROBE_SLED only)
* G32 - Undock sled (Z_PROBE_SLED only)
* G90 - Use Absolute Coordinates
* G91 - Use Relative Coordinates
* G92 - Set current position to coordinates 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 _while_ printing from SD card files):
* syntax "M32 /path/filename#", or "M32 S<startpos bytes> !filename#"
* Call gcode file : "M32 P !filename#" and return to caller file after finishing (similar to #include).
* The '#' is necessary when calling from within sd files, as it stops buffer prereading
* M33 - Get the longname version of a path
* 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.
* M48 - Measure Z_Probe repeatability. M48 [P # of points] [X position] [Y position] [V_erboseness #] [E_ngage Probe] [L # of legs of travel]
* M75 - Start the print job timer
* M76 - Pause the print job timer
* M77 - Stop the print job timer
* M78 - Show statistical information about the print jobs
* 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 planner.axis_steps_per_mm - same syntax as G92
* M104 - Set extruder target temp
* M105 - Read current temp
* M106 - Fan on
* M107 - Fan off
* M108 - Stop the waiting for heaters in M109, M190, M303. Does not affect the target temperature.
* 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
* IF AUTOTEMP is enabled, S<mintemp> B<maxtemp> F<factor>. Exit autotemp by any M109 without F
* M110 - Set the current line number
* M111 - Set debug flags with S<mask>. See flag bits defined in enum.h.
* M112 - Emergency stop
* M113 - Get or set the timeout interval for Host Keepalive "busy" messages
* M114 - Output current position to serial port
* M115 - Capabilities string
* M117 - Display a message on the controller screen
* M119 - Output Endstop status to serial port
* M120 - Enable endstop detection
* M121 - Disable endstop detection
* 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
* M145 - Set the heatup state H<hotend> B<bed> F<fan speed> for S<material> (0=PLA, 1=ABS)
* M149 - Set temperature units
* M150 - Set BlinkM Color Output R: Red<0-255> U(!): Green<0-255> B: Blue<0-255> over i2c, G for green does not work.
* M163 - Set a single proportion for a mixing extruder. Requires MIXING_EXTRUDER.
* M164 - Save the mix as a virtual extruder. Requires MIXING_EXTRUDER and MIXING_VIRTUAL_TOOLS.
* M165 - Set the proportions for a mixing extruder. Use parameters ABCDHI to set the mixing factors. Requires MIXING_EXTRUDER.
* 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, D<diameter>, setting E axis units to cubic. (Use S0 to revert to linear units.)
* 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 units/sec
* M204 - Set default acceleration: P for Printing moves, R for Retract only (no X, Y, Z) moves and T for Travel (non printing) moves (ex. M204 P800 T3000 R9000) in units/sec^2
* M205 - Set advanced settings. Current units apply:
S<print> T<travel> minimum speeds
B<minimum segment time>
X<max xy jerk>, Z<max Z jerk>, E<max E jerk>
* M206 - Set additional homing offset
* M207 - Set Retract Length: S<length>, Feedrate: F<units/min>, and Z lift: Z<distance>
* M208 - Set Recover (unretract) Additional (!) Length: S<length> and Feedrate: F<units/min>
* M209 - Turn Automatic Retract Detection on/off: S<bool> (For slicers that don't support G10/11).
Every normal extrude-only move will be classified as retract depending on the direction.
* M218 - Set a tool offset: T<index> X<offset> Y<offset>
* M220 - Set Feedrate Percentage: S<percent> ("FR" on your LCD)
* M221 - Set Flow Percentage: S<percent>
* M226 - Wait until the specified pin reaches the state required: P<pin number> S<pin state>
* 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 beep sound 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
* M380 - Activate solenoid on active extruder
* M381 - Disable all solenoids
* M400 - Finish all moves
* M401 - Lower Z probe if present
* M402 - Raise Z probe if present
* M404 - Display or set the Nominal Filament Width: [ N<diameter> ]
* M405 - Enable Filament Sensor extrusion control. Optional delay between sensor and extruder: D<cm>
* M406 - Disable Filament Sensor extrusion control
* M407 - Display measured filament diameter in millimeters
* M410 - Quickstop. Abort all the planned moves
* M420 - Enable/Disable Mesh Leveling (with current values) S1=enable S0=disable
* M421 - Set a single Z coordinate in the Mesh Leveling grid. X<units> Y<units> Z<units>
* M428 - Set the home_offset logically based on the current_position
* M500 - Store parameters in EEPROM
* M501 - Read parameters from EEPROM (if you need reset them after you changed them temporarily).
* M502 - Revert 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). Use S0 to leave off headings.
* 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]
* M665 - Set delta configurations: L<diagonal rod> R<delta radius> S<segments/s>
* M666 - Set delta endstop adjustment
* M605 - Set dual x-carriage movement mode: S<mode> [ X<duplication x-offset> R<duplication temp offset> ]
* M851 - Set Z probe's Z offset in current units. (Negative values apply to probes that extend below the nozzle.)
* M907 - Set digital trimpot motor current using axis codes.
* M908 - Control digital trimpot directly.
* M909 - DAC_STEPPER_CURRENT: Print digipot/DAC current value
* M910 - DAC_STEPPER_CURRENT: Commit digipot/DAC value to external EEPROM via I2C
* M350 - Set microstepping mode.
* M351 - Toggle MS1 MS2 pins directly.
*
* ************ SCARA Specific - This can change to suit future G-code regulations
* M360 - SCARA calibration: Move to cal-position ThetaA (0 deg calibration)
* M361 - SCARA calibration: Move to cal-position ThetaB (90 deg calibration - steps per degree)
* M362 - SCARA calibration: Move to cal-position PsiA (0 deg calibration)
* M363 - SCARA calibration: Move to cal-position PsiB (90 deg calibration - steps per degree)
* M364 - SCARA calibration: Move to cal-position PSIC (90 deg to Theta calibration position)
* M365 - SCARA calibration: Scaling factor, X, Y, Z axis
* ************* SCARA End ***************
*
* ************ Custom codes - This can change to suit future G-code regulations
* M100 - Watch Free Memory (For Debugging Only)
* M928 - Start SD logging (M928 filename.g) - ended by M29
* M999 - Restart after being stopped by error
*
* "T" Codes
*
* T0-T3 - Select a tool by index (usually an extruder) [ F<units/min> ]
*
*/
#if ENABLED(M100_FREE_MEMORY_WATCHER)
void gcode_M100();
#endif
#if ENABLED(SDSUPPORT)
CardReader card;
#endif
#if ENABLED(EXPERIMENTAL_I2CBUS)
TWIBus i2c;
#endif
bool Running = true;
uint8_t marlin_debug_flags = DEBUG_NONE;
float current_position[NUM_AXIS] = { 0.0 };
#ifdef UARM_SWIFT
float destination[NUM_AXIS] = { 0.0 };
const char polor_axis_codes[NUM_AXIS] = {'S', 'R', 'H', 'E'};
float feedrate_mm_m = 1500.0, saved_feedrate_mm_m;
#else
static float destination[NUM_AXIS] = { 0.0 };
static float feedrate_mm_m = 1500.0, saved_feedrate_mm_m;
#endif
bool axis_known_position[3] = { false };
bool axis_homed[3] = { false };
static long gcode_N, gcode_LastN, Stopped_gcode_LastN = 0;
static char command_queue[BUFSIZE][MAX_CMD_SIZE];
static char* current_command, *current_command_args;
static uint8_t cmd_queue_index_r = 0,
cmd_queue_index_w = 0,
commands_in_queue = 0;
#if ENABLED(INCH_MODE_SUPPORT)
float linear_unit_factor = 1.0;
float volumetric_unit_factor = 1.0;
#endif
#if ENABLED(TEMPERATURE_UNITS_SUPPORT)
TempUnit input_temp_units = TEMPUNIT_C;
#endif
/**
* Feed rates are often configured with mm/m
* but the planner and stepper like mm/s units.
*/
const float homing_feedrate_mm_m[] = {
#if ENABLED(DELTA)
HOMING_FEEDRATE_Z, HOMING_FEEDRATE_Z,
#else
HOMING_FEEDRATE_XY, HOMING_FEEDRATE_XY,
#endif
HOMING_FEEDRATE_Z, 0
};
int feedrate_percentage = 100, saved_feedrate_percentage;
bool axis_relative_modes[] = AXIS_RELATIVE_MODES;
int extruder_multiplier[EXTRUDERS] = ARRAY_BY_EXTRUDERS1(100);
bool volumetric_enabled = false;
float filament_size[EXTRUDERS] = ARRAY_BY_EXTRUDERS1(DEFAULT_NOMINAL_FILAMENT_DIA);
float volumetric_multiplier[EXTRUDERS] = ARRAY_BY_EXTRUDERS1(1.0);
// The distance that XYZ has been offset by G92. Reset by G28.
float position_shift[3] = { 0 };
// This offset is added to the configured home position.
// Set by M206, M428, or menu item. Saved to EEPROM.
float home_offset[3] = { 0 };
// Software Endstops. Default to configured limits.
float sw_endstop_min[3] = { X_MIN_POS, Y_MIN_POS, Z_MIN_POS };
float sw_endstop_max[3] = { X_MAX_POS, Y_MAX_POS, Z_MAX_POS };
#if FAN_COUNT > 0
int fanSpeeds[FAN_COUNT] = { 0 };
#endif
// The active extruder (tool). Set with T<extruder> command.
uint8_t active_extruder = 0;
// Relative Mode. Enable with G91, disable with G90.
static bool relative_mode = false;
volatile bool wait_for_heatup = true;
const char errormagic[] PROGMEM = "Error:";
const char echomagic[] PROGMEM = "echo:";
const char axis_codes[NUM_AXIS] = {'X', 'Y', 'Z', 'E'};
static int serial_count = 0;
// GCode parameter pointer used by code_seen(), code_value_float(), etc.
static char* seen_pointer;
// Next Immediate GCode Command pointer. NULL if none.
const char* queued_commands_P = NULL;
const int sensitive_pins[] = SENSITIVE_PINS; ///< Sensitive pin list for M42
// Inactivity shutdown
millis_t previous_cmd_ms = 0;
static millis_t max_inactive_time = 0;
static millis_t stepper_inactive_time = (DEFAULT_STEPPER_DEACTIVE_TIME) * 1000UL;
// Print Job Timer
#if ENABLED(PRINTCOUNTER)
PrintCounter print_job_timer = PrintCounter();
#else
Stopwatch print_job_timer = Stopwatch();
#endif
// Buzzer - I2C on the LCD or a BEEPER_PIN
#if ENABLED(LCD_USE_I2C_BUZZER)
#define BUZZ(d,f) lcd_buzz(d, f)
#elif HAS_BUZZER
Buzzer buzzer;
#define BUZZ(d,f) buzzer.tone(d, f)
#else
#define BUZZ(d,f) NOOP
#endif
static uint8_t target_extruder;
#if HAS_BED_PROBE
float zprobe_zoffset = Z_PROBE_OFFSET_FROM_EXTRUDER;
#endif
#define PLANNER_XY_FEEDRATE() (min(planner.max_feedrate_mm_s[X_AXIS], planner.max_feedrate_mm_s[Y_AXIS]))
#if ENABLED(AUTO_BED_LEVELING_FEATURE)
int xy_probe_feedrate_mm_m = XY_PROBE_SPEED;
bool bed_leveling_in_progress = false;
#define XY_PROBE_FEEDRATE_MM_M xy_probe_feedrate_mm_m
#elif defined(XY_PROBE_SPEED)
#define XY_PROBE_FEEDRATE_MM_M XY_PROBE_SPEED
#else
#define XY_PROBE_FEEDRATE_MM_M MMS_TO_MMM(PLANNER_XY_FEEDRATE())
#endif
#if ENABLED(Z_DUAL_ENDSTOPS) && DISABLED(DELTA)
float z_endstop_adj = 0;
#endif
// Extruder offsets
#if HOTENDS > 1
float hotend_offset[][HOTENDS] = {
HOTEND_OFFSET_X,
HOTEND_OFFSET_Y
#ifdef HOTEND_OFFSET_Z
, HOTEND_OFFSET_Z
#endif
};
#endif
#if HAS_Z_SERVO_ENDSTOP
const int z_servo_angle[2] = Z_SERVO_ANGLES;
#endif
#if ENABLED(BARICUDA)
int baricuda_valve_pressure = 0;
int baricuda_e_to_p_pressure = 0;
#endif
#if ENABLED(FWRETRACT)
bool autoretract_enabled = false;
bool retracted[EXTRUDERS] = { false };
bool retracted_swap[EXTRUDERS] = { false };
float retract_length = RETRACT_LENGTH;
float retract_length_swap = RETRACT_LENGTH_SWAP;
float retract_feedrate_mm_s = RETRACT_FEEDRATE;
float retract_zlift = RETRACT_ZLIFT;
float retract_recover_length = RETRACT_RECOVER_LENGTH;
float retract_recover_length_swap = RETRACT_RECOVER_LENGTH_SWAP;
float retract_recover_feedrate_mm_s = RETRACT_RECOVER_FEEDRATE;
#endif // FWRETRACT
#if ENABLED(ULTIPANEL) && HAS_POWER_SWITCH
bool powersupply =
#if ENABLED(PS_DEFAULT_OFF)
false
#else
true
#endif
;
#endif
#if ENABLED(DELTA)
#define TOWER_1 X_AXIS
#define TOWER_2 Y_AXIS
#define TOWER_3 Z_AXIS
float delta[3];
float cartesian_position[3] = { 0 };
#define SIN_60 0.8660254037844386
#define COS_60 0.5
float endstop_adj[3] = { 0 };
// these are the default values, can be overriden with M665
float delta_radius = DELTA_RADIUS;
float delta_tower1_x = -SIN_60 * (delta_radius + DELTA_RADIUS_TRIM_TOWER_1); // front left tower
float delta_tower1_y = -COS_60 * (delta_radius + DELTA_RADIUS_TRIM_TOWER_1);
float delta_tower2_x = SIN_60 * (delta_radius + DELTA_RADIUS_TRIM_TOWER_2); // front right tower
float delta_tower2_y = -COS_60 * (delta_radius + DELTA_RADIUS_TRIM_TOWER_2);
float delta_tower3_x = 0; // back middle tower
float delta_tower3_y = (delta_radius + DELTA_RADIUS_TRIM_TOWER_3);
float delta_diagonal_rod = DELTA_DIAGONAL_ROD;
float delta_diagonal_rod_trim_tower_1 = DELTA_DIAGONAL_ROD_TRIM_TOWER_1;
float delta_diagonal_rod_trim_tower_2 = DELTA_DIAGONAL_ROD_TRIM_TOWER_2;
float delta_diagonal_rod_trim_tower_3 = DELTA_DIAGONAL_ROD_TRIM_TOWER_3;
float delta_diagonal_rod_2_tower_1 = sq(delta_diagonal_rod + delta_diagonal_rod_trim_tower_1);
float delta_diagonal_rod_2_tower_2 = sq(delta_diagonal_rod + delta_diagonal_rod_trim_tower_2);
float delta_diagonal_rod_2_tower_3 = sq(delta_diagonal_rod + delta_diagonal_rod_trim_tower_3);
float delta_segments_per_second = DELTA_SEGMENTS_PER_SECOND;
float delta_clip_start_height = Z_MAX_POS;
#if ENABLED(AUTO_BED_LEVELING_FEATURE)
int delta_grid_spacing[2] = { 0, 0 };
float bed_level[AUTO_BED_LEVELING_GRID_POINTS][AUTO_BED_LEVELING_GRID_POINTS];
#endif
float delta_safe_distance_from_top();
#else
static bool home_all_axis = true;
#endif
#if ENABLED(SCARA)
float delta_segments_per_second = SCARA_SEGMENTS_PER_SECOND;
float delta[3];
float axis_scaling[3] = { 1, 1, 1 }; // Build size scaling, default to 1
#endif
#if ENABLED(FILAMENT_WIDTH_SENSOR)
//Variables for Filament Sensor input
float filament_width_nominal = DEFAULT_NOMINAL_FILAMENT_DIA; //Set nominal filament width, can be changed with M404
bool filament_sensor = false; //M405 turns on filament_sensor control, M406 turns it off
float filament_width_meas = DEFAULT_MEASURED_FILAMENT_DIA; //Stores the measured filament diameter
int8_t measurement_delay[MAX_MEASUREMENT_DELAY + 1]; //ring buffer to delay measurement store extruder factor after subtracting 100
int filwidth_delay_index1 = 0; //index into ring buffer
int filwidth_delay_index2 = -1; //index into ring buffer - set to -1 on startup to indicate ring buffer needs to be initialized
int meas_delay_cm = MEASUREMENT_DELAY_CM; //distance delay setting
#endif
#if ENABLED(FILAMENT_RUNOUT_SENSOR)
static bool filament_ran_out = false;
#endif
#if ENABLED(FILAMENT_CHANGE_FEATURE)
FilamentChangeMenuResponse filament_change_menu_response;
#endif
#if ENABLED(MIXING_EXTRUDER)
float mixing_factor[MIXING_STEPPERS];
#if MIXING_VIRTUAL_TOOLS > 1
float mixing_virtual_tool_mix[MIXING_VIRTUAL_TOOLS][MIXING_STEPPERS];
#endif
#endif
static bool send_ok[BUFSIZE];
#if HAS_SERVOS
Servo servo[NUM_SERVOS];
#define MOVE_SERVO(I, P) servo[I].move(P)
#if HAS_Z_SERVO_ENDSTOP
#define DEPLOY_Z_SERVO() MOVE_SERVO(Z_ENDSTOP_SERVO_NR, z_servo_angle[0])
#define STOW_Z_SERVO() MOVE_SERVO(Z_ENDSTOP_SERVO_NR, z_servo_angle[1])
#endif
#endif
#ifdef CHDK
millis_t chdkHigh = 0;
boolean chdkActive = false;
#endif
#if ENABLED(PID_EXTRUSION_SCALING)
int lpq_len = 20;
#endif
#if ENABLED(HOST_KEEPALIVE_FEATURE)
static MarlinBusyState busy_state = NOT_BUSY;
static millis_t next_busy_signal_ms = 0;
uint8_t host_keepalive_interval = DEFAULT_KEEPALIVE_INTERVAL;
#define KEEPALIVE_STATE(n) do{ busy_state = n; }while(0)
#else
#define host_keepalive() ;
#define KEEPALIVE_STATE(n) ;
#endif // HOST_KEEPALIVE_FEATURE
/**
* ***************************************************************************
* ******************************** FUNCTIONS ********************************
* ***************************************************************************
*/
void stop();
void get_available_commands();
void process_next_command();
void prepare_move_to_destination();
void set_current_from_steppers_for_axis(AxisEnum axis);
#if ENABLED(ARC_SUPPORT)
void plan_arc(float target[NUM_AXIS], float* offset, uint8_t clockwise);
#endif
#if ENABLED(BEZIER_CURVE_SUPPORT)
void plan_cubic_move(const float offset[4]);
#endif
void serial_echopair_P(const char* s_P, char v) { serialprintPGM(s_P); SERIAL_CHAR(v); }
void serial_echopair_P(const char* s_P, int v) { serialprintPGM(s_P); SERIAL_ECHO(v); }
void serial_echopair_P(const char* s_P, long v) { serialprintPGM(s_P); SERIAL_ECHO(v); }
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); }
void tool_change(const uint8_t tmp_extruder, const float fr_mm_m=0.0, bool no_move=false);
static void report_current_position();
#if ENABLED(DEBUG_LEVELING_FEATURE)
void print_xyz(const char* prefix, const char* suffix, const float x, const float y, const float z) {
serialprintPGM(prefix);
SERIAL_ECHOPAIR("(", x);
SERIAL_ECHOPAIR(", ", y);
SERIAL_ECHOPAIR(", ", z);
SERIAL_ECHOPGM(")");
if (suffix) serialprintPGM(suffix);
else SERIAL_EOL;
}
void print_xyz(const char* prefix, const char* suffix, const float xyz[]) {
print_xyz(prefix, suffix, xyz[X_AXIS], xyz[Y_AXIS], xyz[Z_AXIS]);
}
#if ENABLED(AUTO_BED_LEVELING_FEATURE)
void print_xyz(const char* prefix, const char* suffix, const vector_3 &xyz) {
print_xyz(prefix, suffix, xyz.x, xyz.y, xyz.z);
}
#endif
#define DEBUG_POS(SUFFIX,VAR) do { \
print_xyz(PSTR(STRINGIFY(VAR) "="), PSTR(" : " SUFFIX "\n"), VAR); } while(0)
#endif
/**
* sync_plan_position
* Set planner / stepper positions to the cartesian current_position.
* The stepper code translates these coordinates into step units.
* Allows translation between steps and millimeters for cartesian & core robots
*/
inline void sync_plan_position() {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) DEBUG_POS("sync_plan_position", current_position);
#endif
planner.set_position_mm(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);
}
inline void sync_plan_position_e() { planner.set_e_position_mm(current_position[E_AXIS]); }
#if ENABLED(DELTA) || ENABLED(SCARA)
inline void sync_plan_position_delta() {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) DEBUG_POS("sync_plan_position_delta", current_position);
#endif
inverse_kinematics(current_position);
planner.set_position_mm(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], current_position[E_AXIS]);
}
#define SYNC_PLAN_POSITION_KINEMATIC() sync_plan_position_delta()
#else
#define SYNC_PLAN_POSITION_KINEMATIC() sync_plan_position()
#endif
#if ENABLED(SDSUPPORT)
#include "SdFatUtil.h"
int freeMemory() { return SdFatUtil::FreeRam(); }
#else
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;
}
}
#endif //!SDSUPPORT
#if ENABLED(DIGIPOT_I2C)
extern void digipot_i2c_set_current(int channel, float current);
extern void digipot_i2c_init();
#endif
/**
* Inject the next "immediate" command, when possible.
* Return true if any immediate commands remain to inject.
*/
static bool drain_queued_commands_P() {
if (queued_commands_P != NULL) {
size_t i = 0;
char c, cmd[30];
strncpy_P(cmd, queued_commands_P, sizeof(cmd) - 1);
cmd[sizeof(cmd) - 1] = '\0';
while ((c = cmd[i]) && c != '\n') i++; // find the end of this gcode command
cmd[i] = '\0';
if (enqueue_and_echo_command(cmd)) { // success?
if (c) // newline char?
queued_commands_P += i + 1; // advance to the next command
else
queued_commands_P = NULL; // nul char? no more commands
}
}
return (queued_commands_P != NULL); // return whether any more remain
}
/**
* Record one or many commands to run from program memory.
* Aborts the current queue, if any.
* Note: drain_queued_commands_P() must be called repeatedly to drain the commands afterwards
*/
void enqueue_and_echo_commands_P(const char* pgcode) {
queued_commands_P = pgcode;
drain_queued_commands_P(); // first command executed asap (when possible)
}
void clear_command_queue() {
cmd_queue_index_r = cmd_queue_index_w;
commands_in_queue = 0;
}
/**
* Once a new command is in the ring buffer, call this to commit it
*/
inline void _commit_command(bool say_ok) {
send_ok[cmd_queue_index_w] = say_ok;
cmd_queue_index_w = (cmd_queue_index_w + 1) % BUFSIZE;
commands_in_queue++;
}
/**
* Copy a command directly into the main command buffer, from RAM.
* Returns true if successfully adds the command
*/
inline bool _enqueuecommand(const char* cmd, bool say_ok=false) {
if (*cmd == ';' || commands_in_queue >= BUFSIZE) return false;
strcpy(command_queue[cmd_queue_index_w], cmd);
_commit_command(say_ok);
return true;
}
void enqueue_and_echo_command_now(const char* cmd) {
while (!enqueue_and_echo_command(cmd)) idle();
}
/**
* Enqueue with Serial Echo
*/
bool enqueue_and_echo_command(const char* cmd, bool say_ok/*=false*/) {
if (_enqueuecommand(cmd, say_ok)) {
SERIAL_ECHO_START;
SERIAL_ECHOPGM(MSG_Enqueueing);
SERIAL_ECHO(cmd);
SERIAL_ECHOLNPGM("\"");
return true;
}
return false;
}
void setup_killpin() {
#if HAS_KILL
SET_INPUT(KILL_PIN);
WRITE(KILL_PIN, HIGH);
#endif
}
#if ENABLED(FILAMENT_RUNOUT_SENSOR)
void setup_filrunoutpin() {
pinMode(FIL_RUNOUT_PIN, INPUT);
#if ENABLED(ENDSTOPPULLUP_FIL_RUNOUT)
WRITE(FIL_RUNOUT_PIN, HIGH);
#endif
}
#endif
// Set home pin
void setup_homepin(void) {
#if HAS_HOME
SET_INPUT(HOME_PIN);
WRITE(HOME_PIN, HIGH);
#endif
}
void setup_photpin() {
#if HAS_PHOTOGRAPH
OUT_WRITE(PHOTOGRAPH_PIN, LOW);
#endif
}
void setup_powerhold() {
#if HAS_SUICIDE
OUT_WRITE(SUICIDE_PIN, HIGH);
#endif
#if HAS_POWER_SWITCH
#if ENABLED(PS_DEFAULT_OFF)
OUT_WRITE(PS_ON_PIN, PS_ON_ASLEEP);
#else
OUT_WRITE(PS_ON_PIN, PS_ON_AWAKE);
#endif
#endif
}
void suicide() {
#if HAS_SUICIDE
OUT_WRITE(SUICIDE_PIN, LOW);
#endif
}
void servo_init() {
#if NUM_SERVOS >= 1 && HAS_SERVO_0
servo[0].attach(SERVO0_PIN);
servo[0].detach(); // Just set up the pin. We don't have a position yet. Don't move to a random position.
#endif
#if NUM_SERVOS >= 2 && HAS_SERVO_1
servo[1].attach(SERVO1_PIN);
servo[1].detach();
#endif
#if NUM_SERVOS >= 3 && HAS_SERVO_2
servo[2].attach(SERVO2_PIN);
servo[2].detach();
#endif
#if NUM_SERVOS >= 4 && HAS_SERVO_3
servo[3].attach(SERVO3_PIN);
servo[3].detach();
#endif
#if HAS_Z_SERVO_ENDSTOP
/**
* Set position of Z Servo Endstop
*
* The servo might be deployed and positioned too low to stow
* when starting up the machine or rebooting the board.
* There's no way to know where the nozzle is positioned until
* homing has been done - no homing with z-probe without init!
*
*/
STOW_Z_SERVO();
#endif
#if HAS_BED_PROBE
endstops.enable_z_probe(false);
#endif
}
/**
* Stepper Reset (RigidBoard, et.al.)
*/
#if HAS_STEPPER_RESET
void disableStepperDrivers() {
pinMode(STEPPER_RESET_PIN, OUTPUT);
digitalWrite(STEPPER_RESET_PIN, LOW); // drive it down to hold in reset motor driver chips
}
void enableStepperDrivers() { pinMode(STEPPER_RESET_PIN, INPUT); } // set to input, which allows it to be pulled high by pullups
#endif
/**
* Marlin entry-point: Set up before the program loop
* - Set up the kill pin, filament runout, power hold
* - Start the serial port
* - Print startup messages and diagnostics
* - Get EEPROM or default settings
* - Initialize managers for:
* â?temperature
* â?planner
* â?watchdog
* â?stepper
* â?photo pin
* â?servos
* â?LCD controller
* â?Digipot I2C
* â?Z probe sled
* â?status LEDs
*/
void setup() {
#ifdef DISABLE_JTAG
// Disable JTAG on AT90USB chips to free up pins for IO
MCUCR = 0x80;
MCUCR = 0x80;
#endif
#if ENABLED(FILAMENT_RUNOUT_SENSOR)
setup_filrunoutpin();
#endif
setup_killpin();
setup_powerhold();
#if HAS_STEPPER_RESET
disableStepperDrivers();
#endif
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(" " SHORT_BUILD_VERSION);
#ifdef STRING_DISTRIBUTION_DATE
#ifdef STRING_CONFIG_H_AUTHOR
SERIAL_ECHO_START;
SERIAL_ECHOPGM(MSG_CONFIGURATION_VER);
SERIAL_ECHOPGM(STRING_DISTRIBUTION_DATE);
SERIAL_ECHOPGM(MSG_AUTHOR);
SERIAL_ECHOLNPGM(STRING_CONFIG_H_AUTHOR);
SERIAL_ECHOPGM("Compiled: ");
SERIAL_ECHOLNPGM(__DATE__);
#endif // STRING_CONFIG_H_AUTHOR
#endif // STRING_DISTRIBUTION_DATE
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);
// Send "ok" after commands by default
for (int8_t i = 0; i < BUFSIZE; i++) send_ok[i] = true;
// Load data from EEPROM if available (or use defaults)
// This also updates variables in the planner, elsewhere
Config_RetrieveSettings();
// Initialize current position based on home_offset
memcpy(current_position, home_offset, sizeof(home_offset));
// Vital to init stepper/planner equivalent for current_position
SYNC_PLAN_POSITION_KINEMATIC();
thermalManager.init(); // Initialize temperature loop
#if ENABLED(USE_WATCHDOG)
watchdog_init();
#endif
stepper.init(); // Initialize stepper, this enables interrupts!
setup_photpin();
servo_init();
#if HAS_CONTROLLERFAN
SET_OUTPUT(CONTROLLERFAN_PIN); //Set pin used for driver cooling fan
#endif
#if HAS_STEPPER_RESET
enableStepperDrivers();
#endif
#if ENABLED(DIGIPOT_I2C)
digipot_i2c_init();
#endif
#if ENABLED(DAC_STEPPER_CURRENT)
dac_init();
#endif
#if ENABLED(Z_PROBE_SLED) && PIN_EXISTS(SLED)
pinMode(SLED_PIN, OUTPUT);
digitalWrite(SLED_PIN, LOW); // turn it off
#endif // Z_PROBE_SLED
setup_homepin();
#ifdef STAT_LED_RED
pinMode(STAT_LED_RED, OUTPUT);
digitalWrite(STAT_LED_RED, LOW); // turn it off
#endif
#ifdef STAT_LED_BLUE
pinMode(STAT_LED_BLUE, OUTPUT);
digitalWrite(STAT_LED_BLUE, LOW); // turn it off
#endif
lcd_init();
#if ENABLED(SHOW_BOOTSCREEN)
#if ENABLED(DOGLCD)
safe_delay(BOOTSCREEN_TIMEOUT);
#elif ENABLED(ULTRA_LCD)
bootscreen();
lcd_init();
#endif
#endif
#if ENABLED(MIXING_EXTRUDER) && MIXING_VIRTUAL_TOOLS > 1
// Initialize mixing to 100% color 1
for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
mixing_factor[i] = (i == 0) ? 1 : 0;
for (uint8_t t = 0; t < MIXING_VIRTUAL_TOOLS; t++)