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Diffstat (limited to 'Sprinter/Sprinter.pde')
| -rw-r--r-- | Sprinter/Sprinter.pde | 1548 |
1 files changed, 1548 insertions, 0 deletions
diff --git a/Sprinter/Sprinter.pde b/Sprinter/Sprinter.pde new file mode 100644 index 0000000..4528324 --- /dev/null +++ b/Sprinter/Sprinter.pde @@ -0,0 +1,1548 @@ +// Tonokip RepRap firmware rewrite based off of Hydra-mmm firmware. +// Licence: GPL + +#include "Tonokip_Firmware.h" +#include "configuration.h" +#include "pins.h" + +#ifdef SDSUPPORT +#include "SdFat.h" +#endif + +// 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 +// G4 - Dwell S<seconds> or P<milliseconds> +// G28 - Home all Axis +// G90 - Use Absolute Coordinates +// G91 - Use Relative Coordinates +// G92 - Set current position to cordinates given + +//RepRap M Codes +// M104 - Set extruder target temp +// M105 - Read current temp +// M106 - Fan on +// M107 - Fan off +// M109 - Wait for extruder current temp to reach target temp. +// M114 - Display current position + +//Custom M Codes +// M80 - Turn on Power Supply +// 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 +// 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 +// M115 - Capabilities string +// M140 - Set bed target temp +// M190 - Wait for bed current temp to reach target temp. +// 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) + + +//Stepper Movement Variables +char axis_codes[NUM_AXIS] = {'X', 'Y', 'Z', 'E'}; +bool move_direction[NUM_AXIS]; +const int STEP_PIN[NUM_AXIS] = {X_STEP_PIN, Y_STEP_PIN, Z_STEP_PIN, E_STEP_PIN}; +unsigned long axis_previous_micros[NUM_AXIS]; +unsigned long previous_micros = 0, previous_millis_heater, previous_millis_bed_heater; +unsigned long move_steps_to_take[NUM_AXIS]; +#ifdef RAMP_ACCELERATION + unsigned long axis_max_interval[] = {100000000.0 / (max_start_speed_units_per_second[0] * axis_steps_per_unit[0]), + 100000000.0 / (max_start_speed_units_per_second[1] * axis_steps_per_unit[1]), + 100000000.0 / (max_start_speed_units_per_second[2] * axis_steps_per_unit[2]), + 100000000.0 / (max_start_speed_units_per_second[3] * axis_steps_per_unit[3])}; //TODO: refactor all things like this in a function, or move to setup() + // in a for loop + unsigned long max_interval; + unsigned long axis_steps_per_sqr_second[] = {max_acceleration_units_per_sq_second[0] * axis_steps_per_unit[0], + max_acceleration_units_per_sq_second[1] * axis_steps_per_unit[1], max_acceleration_units_per_sq_second[2] * axis_steps_per_unit[2], + max_acceleration_units_per_sq_second[3] * axis_steps_per_unit[3]}; + unsigned long axis_travel_steps_per_sqr_second[] = {max_travel_acceleration_units_per_sq_second[0] * axis_steps_per_unit[0], + max_travel_acceleration_units_per_sq_second[1] * axis_steps_per_unit[1], max_travel_acceleration_units_per_sq_second[2] * axis_steps_per_unit[2], + max_travel_acceleration_units_per_sq_second[3] * axis_steps_per_unit[3]}; + unsigned long steps_per_sqr_second, plateau_steps; +#endif +boolean acceleration_enabled = false, accelerating = false; +unsigned long interval; +float destination[NUM_AXIS] = {0.0, 0.0, 0.0, 0.0}; +float current_position[NUM_AXIS] = {0.0, 0.0, 0.0, 0.0}; +long axis_interval[NUM_AXIS]; // for speed delay +bool home_all_axis = true; +float feedrate = 1500, next_feedrate, saved_feedrate; +float time_for_move; +long gcode_N, gcode_LastN; +bool relative_mode = false; //Determines Absolute or Relative Coordinates +bool relative_mode_e = false; //Determines Absolute or Relative E Codes while in Absolute Coordinates mode. E is always relative in Relative Coordinates mode. +long timediff = 0; +//experimental feedrate calc +float d = 0; +float axis_diff[NUM_AXIS] = {0, 0, 0, 0}; +#ifdef STEP_DELAY_RATIO + long long_step_delay_ratio = STEP_DELAY_RATIO * 100; +#endif + + +// comm variables +#define MAX_CMD_SIZE 96 +#define BUFSIZE 8 +char cmdbuffer[BUFSIZE][MAX_CMD_SIZE]; +bool fromsd[BUFSIZE]; +int bufindr = 0; +int bufindw = 0; +int buflen = 0; +int i = 0; +char serial_char; +int serial_count = 0; +boolean comment_mode = false; +char *strchr_pointer; // just a pointer to find chars in the cmd string like X, Y, Z, E, etc + +// Manage heater variables. For a thermistor or AD595 thermocouple, raw values refer to the +// reading from the analog pin. For a MAX6675 thermocouple, the raw value is the temperature in 0.25 +// degree increments (i.e. 100=25 deg). + +int target_raw = 0; +int current_raw = 0; +int target_bed_raw = 0; +int current_bed_raw = 0; +float tt = 0, bt = 0; +#ifdef PIDTEMP + int temp_iState = 0; + int temp_dState = 0; + int pTerm; + int iTerm; + int dTerm; + //int output; + int error; + int temp_iState_min = 100 * -PID_INTEGRAL_DRIVE_MAX / PID_IGAIN; + int temp_iState_max = 100 * PID_INTEGRAL_DRIVE_MAX / PID_IGAIN; +#endif +#ifdef SMOOTHING + uint32_t nma = SMOOTHFACTOR * analogRead(TEMP_0_PIN); +#endif +#ifdef WATCHPERIOD + int watch_raw = -1000; + unsigned long watchmillis = 0; +#endif +#ifdef MINTEMP + int minttemp = temp2analog(MINTEMP); +#endif +#ifdef MAXTEMP +int maxttemp = temp2analog(MAXTEMP); +#endif + +//Inactivity shutdown variables +unsigned long previous_millis_cmd = 0; +unsigned long max_inactive_time = 0; +unsigned long stepper_inactive_time = 0; + +#ifdef SDSUPPORT + Sd2Card card; + SdVolume volume; + SdFile root; + SdFile file; + uint32_t filesize = 0; + uint32_t sdpos = 0; + bool sdmode = false; + bool sdactive = false; + bool savetosd = false; + int16_t n; + + void initsd(){ + sdactive = false; + #if SDSS >- 1 + if(root.isOpen()) + root.close(); + if (!card.init(SPI_FULL_SPEED,SDSS)){ + //if (!card.init(SPI_HALF_SPEED,SDSS)) + Serial.println("SD init fail"); + } + else if (!volume.init(&card)) + Serial.println("volume.init failed"); + else if (!root.openRoot(&volume)) + Serial.println("openRoot failed"); + else + sdactive = true; + #endif + } + + inline void write_command(char *buf){ + char* begin = buf; + char* npos = 0; + char* end = buf + strlen(buf) - 1; + + file.writeError = false; + if((npos = strchr(buf, 'N')) != NULL){ + begin = strchr(npos, ' ') + 1; + end = strchr(npos, '*') - 1; + } + end[1] = '\r'; + end[2] = '\n'; + end[3] = '\0'; + //Serial.println(begin); + file.write(begin); + if (file.writeError){ + Serial.println("error writing to file"); + } + } +#endif + + +void setup() +{ + Serial.begin(BAUDRATE); + Serial.println("start"); + for(int i = 0; i < BUFSIZE; i++){ + fromsd[i] = false; + } + + //Initialize Step Pins + for(int i=0; i < NUM_AXIS; i++) if(STEP_PIN[i] > -1) pinMode(STEP_PIN[i],OUTPUT); + + //Initialize Dir Pins + if(X_DIR_PIN > -1) pinMode(X_DIR_PIN,OUTPUT); + if(Y_DIR_PIN > -1) pinMode(Y_DIR_PIN,OUTPUT); + if(Z_DIR_PIN > -1) pinMode(Z_DIR_PIN,OUTPUT); + if(E_DIR_PIN > -1) pinMode(E_DIR_PIN,OUTPUT); + + //Steppers default to disabled. + if(X_ENABLE_PIN > -1) if(!X_ENABLE_ON) digitalWrite(X_ENABLE_PIN,HIGH); + if(Y_ENABLE_PIN > -1) if(!Y_ENABLE_ON) digitalWrite(Y_ENABLE_PIN,HIGH); + if(Z_ENABLE_PIN > -1) if(!Z_ENABLE_ON) digitalWrite(Z_ENABLE_PIN,HIGH); + if(E_ENABLE_PIN > -1) if(!E_ENABLE_ON) digitalWrite(E_ENABLE_PIN,HIGH); + + //endstop pullups + #ifdef ENDSTOPPULLUPS + if(X_MIN_PIN > -1) { pinMode(X_MIN_PIN,INPUT); digitalWrite(X_MIN_PIN,HIGH);} + if(Y_MIN_PIN > -1) { pinMode(Y_MIN_PIN,INPUT); digitalWrite(Y_MIN_PIN,HIGH);} + if(Z_MIN_PIN > -1) { pinMode(Z_MIN_PIN,INPUT); digitalWrite(Z_MIN_PIN,HIGH);} + if(X_MAX_PIN > -1) { pinMode(X_MAX_PIN,INPUT); digitalWrite(X_MAX_PIN,HIGH);} + if(Y_MAX_PIN > -1) { pinMode(Y_MAX_PIN,INPUT); digitalWrite(Y_MAX_PIN,HIGH);} + if(Z_MAX_PIN > -1) { pinMode(Z_MAX_PIN,INPUT); digitalWrite(Z_MAX_PIN,HIGH);} + #endif + //Initialize Enable Pins + if(X_ENABLE_PIN > -1) pinMode(X_ENABLE_PIN,OUTPUT); + if(Y_ENABLE_PIN > -1) pinMode(Y_ENABLE_PIN,OUTPUT); + if(Z_ENABLE_PIN > -1) pinMode(Z_ENABLE_PIN,OUTPUT); + if(E_ENABLE_PIN > -1) pinMode(E_ENABLE_PIN,OUTPUT); + + if(HEATER_0_PIN > -1) pinMode(HEATER_0_PIN,OUTPUT); + if(HEATER_1_PIN > -1) pinMode(HEATER_1_PIN,OUTPUT); + +#ifdef HEATER_USES_MAX6675 + digitalWrite(SCK_PIN,0); + pinMode(SCK_PIN,OUTPUT); + + digitalWrite(MOSI_PIN,1); + pinMode(MOSI_PIN,OUTPUT); + + digitalWrite(MISO_PIN,1); + pinMode(MISO_PIN,INPUT); + + digitalWrite(MAX6675_SS,1); + pinMode(MAX6675_SS,OUTPUT); +#endif + +#ifdef SDSUPPORT + + //power to SD reader + #if SDPOWER > -1 + pinMode(SDPOWER,OUTPUT); + digitalWrite(SDPOWER,HIGH); + #endif + initsd(); + +#endif + +} + + +void loop() +{ + if(buflen<3) + get_command(); + + if(buflen){ +#ifdef SDSUPPORT + if(savetosd){ + if(strstr(cmdbuffer[bufindr],"M29") == NULL){ + write_command(cmdbuffer[bufindr]); + Serial.println("ok"); + }else{ + file.sync(); + file.close(); + savetosd = false; + Serial.println("Done saving file."); + } + }else{ + process_commands(); + } +#else + process_commands(); +#endif + buflen = (buflen-1); + bufindr = (bufindr + 1)%BUFSIZE; + } + //check heater every n milliseconds + manage_heater(); + manage_inactivity(1); + } + + +inline void get_command() +{ + while( Serial.available() > 0 && buflen < BUFSIZE) { + serial_char = Serial.read(); + if(serial_char == '\n' || serial_char == '\r' || serial_char == ':' || serial_count >= (MAX_CMD_SIZE - 1) ) + { + if(!serial_count) return; //if empty line + cmdbuffer[bufindw][serial_count] = 0; //terminate string + if(!comment_mode){ + fromsd[bufindw] = false; + if(strstr(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(cmdbuffer[bufindw], "M110") == NULL) ) { + Serial.print("Serial Error: Line Number is not Last Line Number+1, Last Line:"); + Serial.println(gcode_LastN); + //Serial.println(gcode_N); + FlushSerialRequestResend(); + serial_count = 0; + return; + } + + if(strstr(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.print("Error: checksum mismatch, Last Line:"); + Serial.println(gcode_LastN); + FlushSerialRequestResend(); + serial_count = 0; + return; + } + //if no errors, continue parsing + } + else + { + Serial.print("Error: No Checksum with line number, Last Line:"); + Serial.println(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((strstr(cmdbuffer[bufindw], "*") != NULL)) + { + Serial.print("Error: No Line Number with checksum, Last Line:"); + Serial.println(gcode_LastN); + serial_count = 0; + return; + } + } + if((strstr(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: + #ifdef SDSUPPORT + if(savetosd) + break; + #endif + Serial.println("ok"); + break; + default: + break; + } + + } + bufindw = (bufindw + 1)%BUFSIZE; + buflen += 1; + + } + 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; + } + } +#ifdef SDSUPPORT +if(!sdmode || serial_count!=0){ + return; +} + while( filesize > sdpos && buflen < BUFSIZE) { + n = file.read(); + serial_char = (char)n; + if(serial_char == '\n' || serial_char == '\r' || serial_char == ':' || serial_count >= (MAX_CMD_SIZE - 1) || n == -1) + { + sdpos = file.curPosition(); + if(sdpos >= filesize){ + sdmode = false; + Serial.println("Done printing file"); + } + if(!serial_count) 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 + +} + + +inline float code_value() { return (strtod(&cmdbuffer[bufindr][strchr_pointer - cmdbuffer[bufindr] + 1], NULL)); } +inline long code_value_long() { return (strtol(&cmdbuffer[bufindr][strchr_pointer - cmdbuffer[bufindr] + 1], NULL, 10)); } +inline bool code_seen(char code_string[]) { return (strstr(cmdbuffer[bufindr], code_string) != NULL); } //Return True if the string was found + +inline bool code_seen(char code) +{ + strchr_pointer = strchr(cmdbuffer[bufindr], code); + return (strchr_pointer != NULL); //Return True if a character was found +} + +inline 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 + #ifdef DISABLE_CHECK_DURING_ACC || DISABLE_CHECK_DURING_MOVE || DISABLE_CHECK_DURING_TRAVEL + manage_heater(); + #endif + get_coordinates(); // For X Y Z E F + prepare_move(); + previous_millis_cmd = millis(); + //ClearToSend(); + return; + //break; + case 4: // G4 dwell + codenum = 0; + if(code_seen('P')) codenum = code_value(); // milliseconds to wait + if(code_seen('S')) codenum = code_value() * 1000; // seconds to wait + codenum += millis(); // keep track of when we started waiting + while(millis() < codenum ){ + manage_heater(); + } + break; + case 28: //G28 Home all Axis one at a time + saved_feedrate = feedrate; + for(int i=0; i < NUM_AXIS; i++) { + destination[i] = 0; + current_position[i] = 0; + } + feedrate = 0; + + home_all_axis = !((code_seen(axis_codes[0])) || (code_seen(axis_codes[1])) || (code_seen(axis_codes[2]))); + + if((home_all_axis) || (code_seen('X'))) { + if((X_MIN_PIN > -1 && X_HOME_DIR==-1) || (X_MAX_PIN > -1 && X_HOME_DIR==1)) { + current_position[0] = 0; + destination[0] = 1.5 * X_MAX_LENGTH * X_HOME_DIR; + feedrate = max_start_speed_units_per_second[0] * 60; + prepare_move(); + + current_position[0] = 0; + destination[0] = -1 * X_HOME_DIR; + prepare_move(); + + destination[0] = 10 * X_HOME_DIR; + prepare_move(); + + current_position[0] = 0; + destination[0] = 0; + feedrate = 0; + } + } + + if((home_all_axis) || (code_seen('X'))) { + if((Y_MIN_PIN > -1 && Y_HOME_DIR==-1) || (Y_MAX_PIN > -1 && Y_HOME_DIR==1)) { + current_position[1] = 0; + destination[1] = 1.5 * Y_MAX_LENGTH * Y_HOME_DIR; + feedrate = max_start_speed_units_per_second[1] * 60; + prepare_move(); + + current_position[1] = 0; + destination[1] = -1 * Y_HOME_DIR; + prepare_move(); + + destination[1] = 10 * Y_HOME_DIR; + prepare_move(); + + current_position[1] = 0; + destination[1] = 0; + feedrate = 0; + } + } + + if((home_all_axis) || (code_seen('X'))) { + if((Z_MIN_PIN > -1 && Z_HOME_DIR==-1) || (Z_MAX_PIN > -1 && Z_HOME_DIR==1)) { + current_position[2] = 0; + destination[2] = 1.5 * Z_MAX_LENGTH * Z_HOME_DIR; + feedrate = max_feedrate[2]/2; + prepare_move(); + + current_position[2] = 0; + destination[2] = -1 * Z_HOME_DIR; + prepare_move(); + + destination[2] = 10 * Z_HOME_DIR; + prepare_move(); + + current_position[2] = 0; + destination[2] = 0; + feedrate = 0; + } + } + + feedrate = saved_feedrate; + previous_millis_cmd = millis(); + break; + case 90: // G90 + relative_mode = false; + break; + case 91: // G91 + relative_mode = true; + break; + case 92: // G92 + for(int i=0; i < NUM_AXIS; i++) { + if(code_seen(axis_codes[i])) current_position[i] = code_value(); + } + break; + + } + } + + else if(code_seen('M')) + { + + switch( (int)code_value() ) + { +#ifdef SDSUPPORT + + case 20: // M20 - list SD card + Serial.println("Begin file list"); + root.ls(); + Serial.println("End file list"); + break; + case 21: // M21 - init SD card + sdmode = false; + initsd(); + break; + case 22: //M22 - release SD card + sdmode = false; + sdactive = false; + break; + case 23: //M23 - Select file + if(sdactive){ + sdmode = false; + file.close(); + starpos = (strchr(strchr_pointer + 4,'*')); + if(starpos!=NULL) + *(starpos-1)='\0'; + if (file.open(&root, strchr_pointer + 4, O_READ)) { + Serial.print("File opened:"); + Serial.print(strchr_pointer + 4); + Serial.print(" Size:"); + Serial.println(file.fileSize()); + sdpos = 0; + filesize = file.fileSize(); + Serial.println("File selected"); + } + else{ + Serial.println("file.open failed"); + } + } + break; + case 24: //M24 - Start SD print + if(sdactive){ + sdmode = true; + } + break; + case 25: //M25 - Pause SD print + if(sdmode){ + sdmode = false; + } + break; + case 26: //M26 - Set SD index + if(sdactive && code_seen('S')){ + sdpos = code_value_long(); + file.seekSet(sdpos); + } + break; + case 27: //M27 - Get SD status + if(sdactive){ + Serial.print("SD printing byte "); + Serial.print(sdpos); + Serial.print("/"); + Serial.println(filesize); + }else{ + Serial.println("Not SD printing"); + } + break; + case 28: //M28 - Start SD write + if(sdactive){ + char* npos = 0; + file.close(); + sdmode = false; + starpos = (strchr(strchr_pointer + 4,'*')); + if(starpos != NULL){ + npos = strchr(cmdbuffer[bufindr], 'N'); + strchr_pointer = strchr(npos,' ') + 1; + *(starpos-1) = '\0'; + } + if (!file.open(&root, strchr_pointer+4, O_CREAT | O_APPEND | O_WRITE | O_TRUNC)) + { + Serial.print("open failed, File: "); + Serial.print(strchr_pointer + 4); + Serial.print("."); + }else{ + savetosd = true; + Serial.print("Writing to file: "); + Serial.println(strchr_pointer + 4); + } + } + break; + case 29: //M29 - Stop SD write + //processed in write to file routine above + //savetosd = false; + break; +#endif + case 104: // M104 + if (code_seen('S')) target_raw = temp2analog(code_value()); + #ifdef WATCHPERIOD + if(target_raw > current_raw){ + watchmillis = max(1,millis()); + watch_raw = current_raw; + }else{ + watchmillis = 0; + } + #endif + break; + case 140: // M140 set bed temp + if (code_seen('S')) target_bed_raw = temp2analogBed(code_value()); + break; + case 105: // M105 + #if (TEMP_0_PIN > -1) || defined (HEATER_USES_MAX6675) + tt = analog2temp(current_raw); + #endif + #if TEMP_1_PIN > -1 + bt = analog2tempBed(current_bed_raw); + #endif + #if (TEMP_0_PIN > -1) || defined (HEATER_USES_MAX6675) + Serial.print("ok T:"); + Serial.print(tt); + #if TEMP_1_PIN > -1 + Serial.print(" B:"); + Serial.println(bt); + #else + Serial.println(); + #endif + #else + Serial.println("No thermistors - no temp"); + #endif + return; + //break; + case 109: // M109 - Wait for extruder heater to reach target. + if (code_seen('S')) target_raw = temp2analog(code_value()); + #ifdef WATCHPERIOD + if(target_raw>current_raw){ + watchmillis = max(1,millis()); + watch_raw = current_raw; + }else{ + watchmillis = 0; + } + #endif + codenum = millis(); + while(current_raw < target_raw) { + if( (millis() - codenum) > 1000 ) //Print Temp Reading every 1 second while heating up. + { + Serial.print("T:"); + Serial.println( analog2temp(current_raw) ); + codenum = millis(); + } + manage_heater(); + } + break; + case 190: // M190 - Wait bed for heater to reach target. + #if TEMP_1_PIN > -1 + if (code_seen('S')) target_bed_raw = temp2analog(code_value()); + codenum = millis(); + while(current_bed_raw < target_bed_raw) { + if( (millis()-codenum) > 1000 ) //Print Temp Reading every 1 second while heating up. + { + tt=analog2temp(current_raw); + Serial.print("T:"); + Serial.println( tt ); + Serial.print("ok T:"); + Serial.print( tt ); + Serial.print(" B:"); + Serial.println( analog2temp(current_bed_raw) ); + codenum = millis(); + } + manage_heater(); + } + #endif + break; + case 106: //M106 Fan On + if (code_seen('S')){ + digitalWrite(FAN_PIN, HIGH); + analogWrite(FAN_PIN, constrain(code_value(),0,255) ); + } + else + digitalWrite(FAN_PIN, HIGH); + break; + case 107: //M107 Fan Off + analogWrite(FAN_PIN, 0); + + digitalWrite(FAN_PIN, LOW); + break; + case 80: // M81 - ATX Power On + if(PS_ON_PIN > -1) pinMode(PS_ON_PIN,OUTPUT); //GND + break; + case 81: // M81 - ATX Power Off + if(PS_ON_PIN > -1) pinMode(PS_ON_PIN,INPUT); //Floating + break; + case 82: + axis_relative_modes[3] = false; + break; + case 83: + axis_relative_modes[3] = true; + break; + case 84: + if(code_seen('S')){ stepper_inactive_time = code_value() * 1000; } + else{ disable_x(); disable_y(); disable_z(); disable_e(); } + break; + case 85: // M85 + code_seen('S'); + max_inactive_time = code_value() * 1000; + break; + case 92: // M92 + for(int i=0; i < NUM_AXIS; i++) { + if(code_seen(axis_codes[i])) axis_steps_per_unit[i] = code_value(); + } + + //Update start speed intervals and axis order. TODO: refactor axis_max_interval[] calculation into a function, as it + // should also be used in setup() as well + #ifdef RAMP_ACCELERATION + long temp_max_intervals[NUM_AXIS]; + for(int i=0; i < NUM_AXIS; i++) { + axis_max_interval[i] = 100000000.0 / (max_start_speed_units_per_second[i] * axis_steps_per_unit[i]);//TODO: do this for + // all steps_per_unit related variables + } + #endif + break; + case 115: // M115 + Serial.println("FIRMWARE_NAME:Sprinter FIRMWARE_URL:http%%3A/github.com/kliment/Sprinter/ PROTOCOL_VERSION:1.0 MACHINE_TYPE:Mendel EXTRUDER_COUNT:1"); + break; + case 114: // M114 + Serial.print("X:"); + Serial.print(current_position[0]); + Serial.print("Y:"); + Serial.print(current_position[1]); + Serial.print("Z:"); + Serial.print(current_position[2]); + Serial.print("E:"); + Serial.println(current_position[3]); + break; + #ifdef RAMP_ACCELERATION + //TODO: update for all axis, use for loop + case 201: // M201 + for(int i=0; i < NUM_AXIS; i++) { + if(code_seen(axis_codes[i])) axis_steps_per_sqr_second[i] = code_value() * axis_steps_per_unit[i]; + } + break; + case 202: // M202 + for(int i=0; i < NUM_AXIS; i++) { + if(code_seen(axis_codes[i])) axis_travel_steps_per_sqr_second[i] = code_value() * axis_steps_per_unit[i]; + } + break; + #endif + } + + } + else{ + Serial.println("Unknown command:"); + Serial.println(cmdbuffer[bufindr]); + } + + ClearToSend(); + +} + +inline void FlushSerialRequestResend() +{ + //char cmdbuffer[bufindr][100]="Resend:"; + Serial.flush(); + Serial.print("Resend:"); + Serial.println(gcode_LastN + 1); + ClearToSend(); +} + +inline void ClearToSend() +{ + previous_millis_cmd = millis(); + #ifdef SDSUPPORT + if(fromsd[bufindr]) + return; + #endif + Serial.println("ok"); +} + +inline void get_coordinates() +{ + for(int i=0; i < NUM_AXIS; i++) { + if(code_seen(axis_codes[i])) destination[i] = (float)code_value() + (axis_relative_modes[i] || relative_mode)*current_position[i]; + else destination[i] = current_position[i]; //Are these else lines really needed? + } + if(code_seen('F')) { + next_feedrate = code_value(); + if(next_feedrate > 0.0) feedrate = next_feedrate; + } +} + +inline void prepare_move() +{ + //Find direction + for(int i=0; i < NUM_AXIS; i++) { + if(destination[i] >= current_position[i]) move_direction[i] = 1; + else move_direction[i] = 0; + } + + + if (min_software_endstops) { + if (destination[0] < 0) destination[0] = 0.0; + if (destination[1] < 0) destination[1] = 0.0; + if (destination[2] < 0) destination[2] = 0.0; + } + + if (max_software_endstops) { + if (destination[0] > X_MAX_LENGTH) destination[0] = X_MAX_LENGTH; + if (destination[1] > Y_MAX_LENGTH) destination[1] = Y_MAX_LENGTH; + if (destination[2] > Z_MAX_LENGTH) destination[2] = Z_MAX_LENGTH; + } + + for(int i=0; i < NUM_AXIS; i++) { + axis_diff[i] = destination[i] - current_position[i]; + move_steps_to_take[i] = abs(axis_diff[i]) * axis_steps_per_unit[i]; + } + if(feedrate < 10) + feedrate = 10; + + //Feedrate calc based on XYZ travel distance + float xy_d; + if(abs(axis_diff[0]) > 0 || abs(axis_diff[1]) > 0 || abs(axis_diff[2])) { + xy_d = sqrt(axis_diff[0] * axis_diff[0] + axis_diff[1] * axis_diff[1]); + d = sqrt(xy_d * xy_d + axis_diff[2] * axis_diff[2]); + } + else if(abs(axis_diff[3]) > 0) + d = abs(axis_diff[3]); + #ifdef DEBUG_PREPARE_MOVE + else { + log_message("_PREPARE_MOVE - No steps to take!"); + } + #endif + time_for_move = (d / (feedrate / 60000000.0) ); + //Check max feedrate for each axis is not violated, update time_for_move if necessary + for(int i = 0; i < NUM_AXIS; i++) { + if(move_steps_to_take[i] && abs(axis_diff[i]) / (time_for_move / 60000000.0) > max_feedrate[i]) { + time_for_move = time_for_move / max_feedrate[i] * (abs(axis_diff[i]) / (time_for_move / 60000000.0)); + } + } + //Calculate the full speed stepper interval for each axis + for(int i=0; i < NUM_AXIS; i++) { + if(move_steps_to_take[i]) axis_interval[i] = time_for_move / move_steps_to_take[i] * 100; + } + + #ifdef DEBUG_PREPARE_MOVE + log_float("_PREPARE_MOVE - Move distance on the XY plane", xy_d); + log_float("_PREPARE_MOVE - Move distance on the XYZ space", d); + log_float("_PREPARE_MOVE - Commanded feedrate", feedrate); + log_float("_PREPARE_MOVE - Constant full speed move time", time_for_move); + log_float_array("_PREPARE_MOVE - Destination", destination, NUM_AXIS); + log_float_array("_PREPARE_MOVE - Current position", current_position, NUM_AXIS); + log_ulong_array("_PREPARE_MOVE - Steps to take", move_steps_to_take, NUM_AXIS); + log_long_array("_PREPARE_MOVE - Axes full speed intervals", axis_interval, NUM_AXIS); + #endif + + unsigned long move_steps[NUM_AXIS]; + for(int i=0; i < NUM_AXIS; i++) + move_steps[i] = move_steps_to_take[i]; + linear_move(move_steps); // make the move +} + +void linear_move(unsigned long axis_steps_remaining[]) // make linear move with preset speeds and destinations, see G0 and G1 +{ + //Determine direction of movement + if (destination[0] > current_position[0]) digitalWrite(X_DIR_PIN,!INVERT_X_DIR); + else digitalWrite(X_DIR_PIN,INVERT_X_DIR); + if (destination[1] > current_position[1]) digitalWrite(Y_DIR_PIN,!INVERT_Y_DIR); + else digitalWrite(Y_DIR_PIN,INVERT_Y_DIR); + if (destination[2] > current_position[2]) digitalWrite(Z_DIR_PIN,!INVERT_Z_DIR); + else digitalWrite(Z_DIR_PIN,INVERT_Z_DIR); + if (destination[3] > current_position[3]) digitalWrite(E_DIR_PIN,!INVERT_E_DIR); + else digitalWrite(E_DIR_PIN,INVERT_E_DIR); + + if(X_MIN_PIN > -1) if(!move_direction[0]) if(digitalRead(X_MIN_PIN) != ENDSTOPS_INVERTING) axis_steps_remaining[0]=0; + if(Y_MIN_PIN > -1) if(!move_direction[1]) if(digitalRead(Y_MIN_PIN) != ENDSTOPS_INVERTING) axis_steps_remaining[1]=0; + if(Z_MIN_PIN > -1) if(!move_direction[2]) if(digitalRead(Z_MIN_PIN) != ENDSTOPS_INVERTING) axis_steps_remaining[2]=0; + if(X_MAX_PIN > -1) if(move_direction[0]) if(digitalRead(X_MAX_PIN) != ENDSTOPS_INVERTING) axis_steps_remaining[0]=0; + if(Y_MAX_PIN > -1) if(move_direction[1]) if(digitalRead(Y_MAX_PIN) != ENDSTOPS_INVERTING) axis_steps_remaining[1]=0; + if(Z_MAX_PIN > -1) if(move_direction[2]) if(digitalRead(Z_MAX_PIN) != ENDSTOPS_INVERTING) axis_steps_remaining[2]=0; + + + //Only enable axis that are moving. If the axis doesn't need to move then it can stay disabled depending on configuration. + // TODO: maybe it's better to refactor into a generic enable(int axis) function, that will probably take more ram, + // but will reduce code size + if(axis_steps_remaining[0]) enable_x(); + if(axis_steps_remaining[1]) enable_y(); + if(axis_steps_remaining[2]) enable_z(); + if(axis_steps_remaining[3]) enable_e(); + + //Define variables that are needed for the Bresenham algorithm. Please note that Z is not currently included in the Bresenham algorithm. + unsigned long delta[] = {axis_steps_remaining[0], axis_steps_remaining[1], axis_steps_remaining[2], axis_steps_remaining[3]}; //TODO: implement a "for" to support N axes + long axis_error[NUM_AXIS]; + unsigned int primary_axis; + if(delta[1] > delta[0] && delta[1] > delta[2] && delta[1] > delta[3]) primary_axis = 1; + else if (delta[0] >= delta[1] && delta[0] > delta[2] && delta[0] > delta[3]) primary_axis = 0; + else if (delta[2] >= delta[0] && delta[2] >= delta[1] && delta[2] > delta[3]) primary_axis = 2; + else primary_axis = 3; + unsigned long steps_remaining = delta[primary_axis]; + unsigned long steps_to_take = steps_remaining; + for(int i=0; i < NUM_AXIS; i++) if(i != primary_axis) axis_error[i] = delta[primary_axis] / 2; + interval = axis_interval[primary_axis]; + bool is_print_move = delta[3] > 0; + #ifdef DEBUG_BRESENHAM + log_int("_BRESENHAM - Primary axis", primary_axis); + log_int("_BRESENHAM - Primary axis full speed interval", interval); + log_ulong_array("_BRESENHAM - Deltas", delta, NUM_AXIS); + log_long_array("_BRESENHAM - Errors", axis_error, NUM_AXIS); + #endif + + //If acceleration is enabled, do some Bresenham calculations depending on which axis will lead it. + #ifdef RAMP_ACCELERATION + long max_speed_steps_per_second; + long min_speed_steps_per_second; + max_interval = axis_max_interval[primary_axis]; + #ifdef DEBUG_RAMP_ACCELERATION + log_ulong_array("_RAMP_ACCELERATION - Teoric step intervals at move start", axis_max_interval, NUM_AXIS); + #endif + unsigned long new_axis_max_intervals[NUM_AXIS]; + max_speed_steps_per_second = 100000000 / interval; + min_speed_steps_per_second = 100000000 / max_interval; //TODO: can this be deleted? + //Calculate start speeds based on moving axes max start speed constraints. + int slowest_start_axis = primary_axis; + unsigned long slowest_start_axis_max_interval = max_interval; + for(int i = 0; i < NUM_AXIS; i++) + if (axis_steps_remaining[i] >0 && i != primary_axis && axis_max_interval[i] * axis_steps_remaining[i] + / axis_steps_remaining[slowest_start_axis] > slowest_start_axis_max_interval) { + slowest_start_axis = i; + slowest_start_axis_max_interval = axis_max_interval[i]; + } + for(int i = 0; i < NUM_AXIS; i++) + if(axis_steps_remaining[i] >0) { + new_axis_max_intervals[i] = slowest_start_axis_max_interval * axis_steps_remaining[slowest_start_axis] / axis_steps_remaining[i]; + if(i == primary_axis) { + max_interval = new_axis_max_intervals[i]; + min_speed_steps_per_second = 100000000 / max_interval; + } + } + //Calculate slowest axis plateau time + float slowest_axis_plateau_time = 0; + for(int i=0; i < NUM_AXIS ; i++) { + if(axis_steps_remaining[i] > 0) { + if(is_print_move && axis_steps_remaining[i] > 0) slowest_axis_plateau_time = max(slowest_axis_plateau_time, + (100000000.0 / axis_interval[i] - 100000000.0 / new_axis_max_intervals[i]) / (float) axis_steps_per_sqr_second[i]); + else if(axis_steps_remaining[i] > 0) slowest_axis_plateau_time = max(slowest_axis_plateau_time, + (100000000.0 / axis_interval[i] - 100000000.0 / new_axis_max_intervals[i]) / (float) axis_travel_steps_per_sqr_second[i]); + } + } + //Now we can calculate the new primary axis acceleration, so that the slowest axis max acceleration is not violated + steps_per_sqr_second = (100000000.0 / axis_interval[primary_axis] - 100000000.0 / new_axis_max_intervals[primary_axis]) / slowest_axis_plateau_time; + plateau_steps = (long) ((steps_per_sqr_second / 2.0 * slowest_axis_plateau_time + min_speed_steps_per_second) * slowest_axis_plateau_time); + #ifdef DEBUG_RAMP_ACCELERATION + log_int("_RAMP_ACCELERATION - Start speed limiting axis", slowest_start_axis); + log_ulong("_RAMP_ACCELERATION - Limiting axis start interval", slowest_start_axis_max_interval); + log_ulong_array("_RAMP_ACCELERATION - Actual step intervals at move start", new_axis_max_intervals, NUM_AXIS); + #endif + #endif + + unsigned long steps_done = 0; + #ifdef RAMP_ACCELERATION + plateau_steps *= 1.01; // This is to compensate we use discrete intervals + acceleration_enabled = true; + long full_interval = interval; + if(interval > max_interval) acceleration_enabled = false; + boolean decelerating = false; + #endif + + unsigned long start_move_micros = micros(); + for(int i = 0; i < NUM_AXIS; i++) { + axis_previous_micros[i] = start_move_micros * 100; + } + + #ifdef DISABLE_CHECK_DURING_TRAVEL + //If the move time is more than allowed in DISABLE_CHECK_DURING_TRAVEL, let's + // consider this a print move and perform heat management during it + if(time_for_move / 1000 > DISABLE_CHECK_DURING_TRAVEL) is_print_move = true; + //else, if the move is a retract, consider it as a travel move for the sake of this feature + else if(delta[3]>0 && delta[0] + delta[1] + delta[2] == 0) is_print_move = false; + #ifdef DEBUG_DISABLE_CHECK_DURING_TRAVEL + log_bool("_DISABLE_CHECK_DURING_TRAVEL - is_print_move", is_print_move); + #endif + #endif + + #ifdef DEBUG_MOVE_TIME + unsigned long startmove = micros(); + #endif + + //move until no more steps remain + while(axis_steps_remaining[0] + axis_steps_remaining[1] + axis_steps_remaining[2] + axis_steps_remaining[3] > 0) { + #ifdef DISABLE_CHECK_DURING_ACC + if(!accelerating && !decelerating) { + //If more that HEATER_CHECK_INTERVAL ms have passed since previous heating check, adjust temp + #ifdef DISABLE_CHECK_DURING_TRAVEL + if(is_print_move) + #endif + manage_heater(); + } + #else + #ifdef DISABLE_CHECK_DURING_MOVE + {} //Do nothing + #else + //If more that HEATER_CHECK_INTERVAL ms have passed since previous heating check, adjust temp + #ifdef DISABLE_CHECK_DURING_TRAVEL + if(is_print_move) + #endif + manage_heater(); + #endif + #endif + #ifdef RAMP_ACCELERATION + //If acceleration is enabled on this move and we are in the acceleration segment, calculate the current interval + if (acceleration_enabled && steps_done == 0) { + interval = max_interval; + } else if (acceleration_enabled && steps_done <= plateau_steps) { + long current_speed = (long) ((((long) steps_per_sqr_second) / 10000) + * ((micros() - start_move_micros) / 100) + (long) min_speed_steps_per_second); + interval = 100000000 / current_speed; + if (interval < full_interval) { + accelerating = false; + interval = full_interval; + } + if (steps_done >= steps_to_take / 2) { + plateau_steps = steps_done; + max_speed_steps_per_second = 100000000 / interval; + accelerating = false; + } + } else if (acceleration_enabled && steps_remaining <= plateau_steps) { //(interval > minInterval * 100) { + if (!accelerating) { + start_move_micros = micros(); + accelerating = true; + decelerating = true; + } + long current_speed = (long) ((long) max_speed_steps_per_second - ((((long) steps_per_sqr_second) / 10000) + * ((micros() - start_move_micros) / 100))); + interval = 100000000 / current_speed; + if (interval > max_interval) + interval = max_interval; + } else { + //Else, we are just use the full speed interval as current interval + interval = full_interval; + accelerating = false; + } + #endif + + //If there are x or y steps remaining, perform Bresenham algorithm + if(axis_steps_remaining[primary_axis]) { + if(X_MIN_PIN > -1) if(!move_direction[0]) if(digitalRead(X_MIN_PIN) != ENDSTOPS_INVERTING) break; + if(Y_MIN_PIN > -1) if(!move_direction[1]) if(digitalRead(Y_MIN_PIN) != ENDSTOPS_INVERTING) break; + if(X_MAX_PIN > -1) if(move_direction[0]) if(digitalRead(X_MAX_PIN) != ENDSTOPS_INVERTING) break; + if(Y_MAX_PIN > -1) if(move_direction[1]) if(digitalRead(Y_MAX_PIN) != ENDSTOPS_INVERTING) break; + if(Z_MIN_PIN > -1) if(!move_direction[2]) if(digitalRead(Z_MIN_PIN) != ENDSTOPS_INVERTING) break; + if(Z_MAX_PIN > -1) if(move_direction[2]) if(digitalRead(Z_MAX_PIN) != ENDSTOPS_INVERTING) break; + timediff = micros() * 100 - axis_previous_micros[primary_axis]; + while(timediff >= interval && axis_steps_remaining[primary_axis] > 0) { + steps_done++; + steps_remaining--; + axis_steps_remaining[primary_axis]--; timediff -= interval; + do_step_update_micros(primary_axis); + for(int i=0; i < NUM_AXIS; i++) if(i != primary_axis && axis_steps_remaining[i] > 0) { + axis_error[i] = axis_error[i] - delta[i]; + if(axis_error[i] < 0) { + do_step(i); axis_steps_remaining[i]--; + axis_error[i] = axis_error[i] + delta[primary_axis]; + } + } + #ifdef STEP_DELAY_RATIO + if(timediff >= interval) delayMicroseconds(long_step_delay_ratio * interval / 10000); + #endif + #ifdef STEP_DELAY_MICROS + if(timediff >= interval) delayMicroseconds(STEP_DELAY_MICROS); + #endif + } + } + } + #ifdef DEBUG_MOVE_TIME + log_ulong("_MOVE_TIME - This move took", micros()-startmove); + #endif + + if(DISABLE_X) disable_x(); + if(DISABLE_Y) disable_y(); + if(DISABLE_Z) disable_z(); + if(DISABLE_E) disable_e(); + + // Update current position partly based on direction, we probably can combine this with the direction code above... + for(int i=0; i < NUM_AXIS; i++) { + if (destination[i] > current_position[i]) current_position[i] = current_position[i] + move_steps_to_take[i] / axis_steps_per_unit[i]; + else current_position[i] = current_position[i] - move_steps_to_take[i] / axis_steps_per_unit[i]; + } +} + +inline void do_step_update_micros(int axis) { + digitalWrite(STEP_PIN[axis], HIGH); + axis_previous_micros[axis] += interval; + digitalWrite(STEP_PIN[axis], LOW); +} + +inline void do_step(int axis) { + digitalWrite(STEP_PIN[axis], HIGH); + digitalWrite(STEP_PIN[axis], LOW); +} + +inline void disable_x() { if(X_ENABLE_PIN > -1) digitalWrite(X_ENABLE_PIN,!X_ENABLE_ON); } +inline void disable_y() { if(Y_ENABLE_PIN > -1) digitalWrite(Y_ENABLE_PIN,!Y_ENABLE_ON); } +inline void disable_z() { if(Z_ENABLE_PIN > -1) digitalWrite(Z_ENABLE_PIN,!Z_ENABLE_ON); } +inline void disable_e() { if(E_ENABLE_PIN > -1) digitalWrite(E_ENABLE_PIN,!E_ENABLE_ON); } +inline void enable_x() { if(X_ENABLE_PIN > -1) digitalWrite(X_ENABLE_PIN, X_ENABLE_ON); } +inline void enable_y() { if(Y_ENABLE_PIN > -1) digitalWrite(Y_ENABLE_PIN, Y_ENABLE_ON); } +inline void enable_z() { if(Z_ENABLE_PIN > -1) digitalWrite(Z_ENABLE_PIN, Z_ENABLE_ON); } +inline void enable_e() { if(E_ENABLE_PIN > -1) digitalWrite(E_ENABLE_PIN, E_ENABLE_ON); } + +#define HEAT_INTERVAL 250 +#ifdef HEATER_USES_MAX6675 +unsigned long max6675_previous_millis = 0; +int max6675_temp = 2000; + +inline int read_max6675() +{ + if (millis() - max6675_previous_millis < HEAT_INTERVAL) + return max6675_temp; + + max6675_previous_millis = millis(); + + max6675_temp = 0; + + #ifdef PRR + PRR &= ~(1<<PRSPI); + #elif defined PRR0 + PRR0 &= ~(1<<PRSPI); + #endif + + SPCR = (1<<MSTR) | (1<<SPE) | (1<<SPR0); + + // enable TT_MAX6675 + digitalWrite(MAX6675_SS, 0); + + // ensure 100ns delay - a bit extra is fine + delay(1); + + // read MSB + SPDR = 0; + for (;(SPSR & (1<<SPIF)) == 0;); + max6675_temp = SPDR; + max6675_temp <<= 8; + + // read LSB + SPDR = 0; + for (;(SPSR & (1<<SPIF)) == 0;); + max6675_temp |= SPDR; + + // disable TT_MAX6675 + digitalWrite(MAX6675_SS, 1); + + if (max6675_temp & 4) + { + // thermocouple open + max6675_temp = 2000; + } + else + { + max6675_temp = max6675_temp >> 3; + } + + return max6675_temp; +} +#endif + + +inline void manage_heater() +{ + if((millis() - previous_millis_heater) < HEATER_CHECK_INTERVAL ) + return; + previous_millis_heater = millis(); + #ifdef HEATER_USES_THERMISTOR + current_raw = analogRead(TEMP_0_PIN); + #ifdef DEBUG_HEAT_MGMT + log_int("_HEAT_MGMT - analogRead(TEMP_0_PIN)", current_raw); + log_int("_HEAT_MGMT - NUMTEMPS", NUMTEMPS); + #endif + // When using thermistor, when the heater is colder than targer temp, we get a higher analog reading than target, + // this switches it up so that the reading appears lower than target for the control logic. + current_raw = 1023 - current_raw; + #elif defined HEATER_USES_AD595 + current_raw = analogRead(TEMP_0_PIN); + #elif defined HEATER_USES_MAX6675 + current_raw = read_max6675(); + #endif + #ifdef SMOOTHING + nma = (nma + current_raw) - (nma / SMOOTHFACTOR); + current_raw = nma / SMOOTHFACTOR; + #endif + #ifdef WATCHPERIOD + if(watchmillis && millis() - watchmillis > WATCHPERIOD){ + if(watch_raw + 1 >= current_raw){ + target_raw = 0; + digitalWrite(HEATER_0_PIN,LOW); + digitalWrite(LED_PIN,LOW); + }else{ + watchmillis = 0; + } + } + #endif + #ifdef MINTEMP + if(current_raw <= minttemp) + target_raw = 0; + #endif + #ifdef MAXTEMP + if(current_raw >= maxttemp) { + target_raw = 0; + } + #endif + #if (TEMP_0_PIN > -1) || defined (HEATER_USES_MAX66675) + #ifdef PIDTEMP + error = target_raw - current_raw; + pTerm = (PID_PGAIN * error) / 100; + temp_iState += error; + temp_iState = constrain(temp_iState, temp_iState_min, temp_iState_max); + iTerm = (PID_IGAIN * temp_iState) / 100; + dTerm = (PID_DGAIN * (current_raw - temp_dState)) / 100; + temp_dState = current_raw; + analogWrite(HEATER_0_PIN, constrain(pTerm + iTerm - dTerm, 0, PID_MAX)); + #else + if(current_raw >= target_raw) + { + digitalWrite(HEATER_0_PIN,LOW); + digitalWrite(LED_PIN,LOW); + } + else + { + digitalWrite(HEATER_0_PIN,HIGH); + digitalWrite(LED_PIN,HIGH); + } + #endif + #endif + + if(millis() - previous_millis_bed_heater < BED_CHECK_INTERVAL) + return; + previous_millis_bed_heater = millis(); + + #ifdef BED_USES_THERMISTOR + + current_bed_raw = analogRead(TEMP_1_PIN); + #ifdef DEBUG_HEAT_MGMT + log_int("_HEAT_MGMT - analogRead(TEMP_1_PIN)", current_bed_raw); + log_int("_HEAT_MGMT - BNUMTEMPS", BNUMTEMPS); + #endif + + // If using thermistor, when the heater is colder than targer temp, we get a higher analog reading than target, + // this switches it up so that the reading appears lower than target for the control logic. + current_bed_raw = 1023 - current_bed_raw; + #elif defined BED_USES_AD595 + current_bed_raw = analogRead(TEMP_1_PIN); + + #endif + + + #if TEMP_1_PIN > -1 + if(current_bed_raw >= target_bed_raw) + { + digitalWrite(HEATER_1_PIN,LOW); + } + else + { + digitalWrite(HEATER_1_PIN,HIGH); + } + #endif +} + +// Takes hot end temperature value as input and returns corresponding raw value. +// For a thermistor, it uses the RepRap thermistor temp table. +// This is needed because PID in hydra firmware hovers around a given analog value, not a temp value. +// This function is derived from inversing the logic from a portion of getTemperature() in FiveD RepRap firmware. +float temp2analog(int celsius) { + #ifdef HEATER_USES_THERMISTOR + int raw = 0; + byte i; + + for (i=1; i<NUMTEMPS; i++) + { + if (temptable[i][1] < celsius) + { + raw = temptable[i-1][0] + + (celsius - temptable[i-1][1]) * + (temptable[i][0] - temptable[i-1][0]) / + (temptable[i][1] - temptable[i-1][1]); + + break; + } + } + + // Overflow: Set to last value in the table + if (i == NUMTEMPS) raw = temptable[i-1][0]; + + return 1023 - raw; + #elif defined HEATER_USES_AD595 + return celsius * (1024.0 / (5.0 * 100.0) ); + #elif defined HEATER_USES_MAX6675 + return celsius * 4.0; + #endif +} + +// Takes bed temperature value as input and returns corresponding raw value. +// For a thermistor, it uses the RepRap thermistor temp table. +// This is needed because PID in hydra firmware hovers around a given analog value, not a temp value. +// This function is derived from inversing the logic from a portion of getTemperature() in FiveD RepRap firmware. +float temp2analogBed(int celsius) { + #ifdef BED_USES_THERMISTOR + + int raw = 0; + byte i; + + for (i=1; i<BNUMTEMPS; i++) + { + if (bedtemptable[i][1] < celsius) + { + raw = bedtemptable[i-1][0] + + (celsius - bedtemptable[i-1][1]) * + (bedtemptable[i][0] - bedtemptable[i-1][0]) / + (bedtemptable[i][1] - bedtemptable[i-1][1]); + + break; + } + } + + // Overflow: Set to last value in the table + if (i == BNUMTEMPS) raw = bedtemptable[i-1][0]; + + return 1023 - raw; + #elif defined BED_USES_AD595 + return celsius * (1024.0 / (5.0 * 100.0) ); + #endif +} + +// Derived from RepRap FiveD extruder::getTemperature() +// For hot end temperature measurement. +float analog2temp(int raw) { + #ifdef HEATER_USES_THERMISTOR + int celsius = 0; + byte i; + + raw = 1023 - raw; + + for (i=1; i<NUMTEMPS; i++) + { + if (temptable[i][0] > raw) + { + celsius = temptable[i-1][1] + + (raw - temptable[i-1][0]) * + (temptable[i][1] - temptable[i-1][1]) / + (temptable[i][0] - temptable[i-1][0]); + + break; + } + } + + // Overflow: Set to last value in the table + if (i == NUMTEMPS) celsius = temptable[i-1][1]; + + return celsius; + #elif defined HEATER_USES_AD595 + return raw * ((5.0 * 100.0) / 1024.0); + #elif defined HEATER_USES_MAX6675 + return raw * 0.25; + #endif +} + +// Derived from RepRap FiveD extruder::getTemperature() +// For bed temperature measurement. +float analog2tempBed(int raw) { + #ifdef BED_USES_THERMISTOR + int celsius = 0; + byte i; + + raw = 1023 - raw; + + for (i=1; i<NUMTEMPS; i++) + { + if (bedtemptable[i][0] > raw) + { + celsius = bedtemptable[i-1][1] + + (raw - bedtemptable[i-1][0]) * + (bedtemptable[i][1] - bedtemptable[i-1][1]) / + (bedtemptable[i][0] - bedtemptable[i-1][0]); + + break; + } + } + + // Overflow: Set to last value in the table + if (i == NUMTEMPS) celsius = bedtemptable[i-1][1]; + + return celsius; + + #elif defined BED_USES_AD595 + return raw * ((5.0 * 100.0) / 1024.0); + #endif +} + +inline void kill() +{ + #if TEMP_0_PIN > -1 + target_raw=0; + digitalWrite(HEATER_0_PIN,LOW); + #endif + #if TEMP_1_PIN > -1 + target_bed_raw=0; + if(HEATER_1_PIN > -1) digitalWrite(HEATER_1_PIN,LOW); + #endif + disable_x(); + disable_y(); + disable_z(); + disable_e(); + + if(PS_ON_PIN > -1) pinMode(PS_ON_PIN,INPUT); + +} + +inline void manage_inactivity(byte debug) { +if( (millis()-previous_millis_cmd) > max_inactive_time ) if(max_inactive_time) kill(); +if( (millis()-previous_millis_cmd) > stepper_inactive_time ) if(stepper_inactive_time) { disable_x(); disable_y(); disable_z(); disable_e(); } +} + +#ifdef DEBUG +void log_message(char* message) { + Serial.print("DEBUG"); Serial.println(message); +} + +void log_bool(char* message, bool value) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": "); Serial.println(value); +} + +void log_int(char* message, int value) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": "); Serial.println(value); +} + +void log_long(char* message, long value) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": "); Serial.println(value); +} + +void log_float(char* message, float value) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": "); Serial.println(value); +} + +void log_uint(char* message, unsigned int value) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": "); Serial.println(value); +} + +void log_ulong(char* message, unsigned long value) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": "); Serial.println(value); +} + +void log_int_array(char* message, int value[], int array_lenght) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": {"); + for(int i=0; i < array_lenght; i++){ + Serial.print(value[i]); + if(i != array_lenght-1) Serial.print(", "); + } + Serial.println("}"); +} + +void log_long_array(char* message, long value[], int array_lenght) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": {"); + for(int i=0; i < array_lenght; i++){ + Serial.print(value[i]); + if(i != array_lenght-1) Serial.print(", "); + } + Serial.println("}"); +} + +void log_float_array(char* message, float value[], int array_lenght) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": {"); + for(int i=0; i < array_lenght; i++){ + Serial.print(value[i]); + if(i != array_lenght-1) Serial.print(", "); + } + Serial.println("}"); +} + +void log_uint_array(char* message, unsigned int value[], int array_lenght) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": {"); + for(int i=0; i < array_lenght; i++){ + Serial.print(value[i]); + if(i != array_lenght-1) Serial.print(", "); + } + Serial.println("}"); +} + +void log_ulong_array(char* message, unsigned long value[], int array_lenght) { + Serial.print("DEBUG"); Serial.print(message); Serial.print(": {"); + for(int i=0; i < array_lenght; i++){ + Serial.print(value[i]); + if(i != array_lenght-1) Serial.print(", "); + } + Serial.println("}"); +} +#endif |