Merge remote-tracking branch 'upstream/MK3' into PFW-1174

Fix merge issues

Firmware/ConfigurationStore.cpp

@@ -96,7 +96,7 @@ void Config_PrintSettings(uint8_t level)
 		"%SMaximum feedrates - stealth (mm/s):\n%S  M203 X%.2f Y%.2f Z%.2f E%.2f\n"
 		"%SMaximum acceleration - normal (mm/s2):\n%S  M201 X%lu Y%lu Z%lu E%lu\n"
 		"%SMaximum acceleration - stealth (mm/s2):\n%S  M201 X%lu Y%lu Z%lu E%lu\n"
-		"%SAcceleration: S=acceleration, T=retract acceleration\n%S  M204 S%.2f T%.2f\n"
+		"%SAcceleration: P=print, R=retract, T=travel\n%S  M204 P%.2f R%.2f T%.2f\n"
 		"%SAdvanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s),  Z=maximum Z jerk (mm/s),  E=maximum E jerk (mm/s)\n%S  M205 S%.2f T%.2f B%.2f X%.2f Y%.2f Z%.2f E%.2f\n"
 		"%SHome offset (mm):\n%S  M206 X%.2f Y%.2f Z%.2f\n"
 		),
@@ -106,7 +106,7 @@ void Config_PrintSettings(uint8_t level)
 		echomagic, echomagic, cs.max_feedrate_silent[X_AXIS], cs.max_feedrate_silent[Y_AXIS], cs.max_feedrate_silent[Z_AXIS], cs.max_feedrate_silent[E_AXIS],
 		echomagic, echomagic, cs.max_acceleration_units_per_sq_second_normal[X_AXIS], cs.max_acceleration_units_per_sq_second_normal[Y_AXIS], cs.max_acceleration_units_per_sq_second_normal[Z_AXIS], cs.max_acceleration_units_per_sq_second_normal[E_AXIS],
 		echomagic, echomagic, cs.max_acceleration_units_per_sq_second_silent[X_AXIS], cs.max_acceleration_units_per_sq_second_silent[Y_AXIS], cs.max_acceleration_units_per_sq_second_silent[Z_AXIS], cs.max_acceleration_units_per_sq_second_silent[E_AXIS],
-		echomagic, echomagic, cs.acceleration, cs.retract_acceleration,
+		echomagic, echomagic, cs.acceleration, cs.retract_acceleration, cs.travel_acceleration,
 		echomagic, echomagic, cs.minimumfeedrate, cs.mintravelfeedrate, cs.minsegmenttime, cs.max_jerk[X_AXIS], cs.max_jerk[Y_AXIS], cs.max_jerk[Z_AXIS], cs.max_jerk[E_AXIS],
 		echomagic, echomagic, cs.add_homing[X_AXIS], cs.add_homing[Y_AXIS], cs.add_homing[Z_AXIS]
 #else //TMC2130
@@ -114,14 +114,14 @@ void Config_PrintSettings(uint8_t level)
 		"%SSteps per unit:\n%S  M92 X%.2f Y%.2f Z%.2f E%.2f\n"
 		"%SMaximum feedrates (mm/s):\n%S  M203 X%.2f Y%.2f Z%.2f E%.2f\n"
 		"%SMaximum acceleration (mm/s2):\n%S  M201 X%lu Y%lu Z%lu E%lu\n"
-		"%SAcceleration: S=acceleration, T=retract acceleration\n%S  M204 S%.2f T%.2f\n"
+		"%SAcceleration: P=print, R=retract, T=travel\n%S  M204 P%.2f R%.2f T%.2f\n"
 		"%SAdvanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s),  Z=maximum Z jerk (mm/s),  E=maximum E jerk (mm/s)\n%S  M205 S%.2f T%.2f B%.2f X%.2f Y%.2f Z%.2f E%.2f\n"
 		"%SHome offset (mm):\n%S  M206 X%.2f Y%.2f Z%.2f\n"
 		),
 		echomagic, echomagic, cs.axis_steps_per_unit[X_AXIS], cs.axis_steps_per_unit[Y_AXIS], cs.axis_steps_per_unit[Z_AXIS], cs.axis_steps_per_unit[E_AXIS],
 		echomagic, echomagic, max_feedrate[X_AXIS], max_feedrate[Y_AXIS], max_feedrate[Z_AXIS], max_feedrate[E_AXIS],
 		echomagic, echomagic, max_acceleration_units_per_sq_second[X_AXIS], max_acceleration_units_per_sq_second[Y_AXIS], max_acceleration_units_per_sq_second[Z_AXIS], max_acceleration_units_per_sq_second[E_AXIS],
-		echomagic, echomagic, cs.acceleration, cs.retract_acceleration,
+		echomagic, echomagic, cs.acceleration, cs.retract_acceleration, cs.travel_acceleration,
 		echomagic, echomagic, cs.minimumfeedrate, cs.mintravelfeedrate, cs.minsegmenttime, cs.max_jerk[X_AXIS], cs.max_jerk[Y_AXIS], cs.max_jerk[Z_AXIS], cs.max_jerk[E_AXIS],
 		echomagic, echomagic, cs.add_homing[X_AXIS], cs.add_homing[Y_AXIS], cs.add_homing[Z_AXIS]
 #endif //TMC2130
@@ -184,7 +184,7 @@ static_assert (false, "zprobe_zoffset was not initialized in printers in field t
         "0.0, if this is not acceptable, increment EEPROM_VERSION to force use default_conf");
 #endif
 
-static_assert (sizeof(M500_conf) == 192, "sizeof(M500_conf) has changed, ensure that EEPROM_VERSION has been incremented, "
+static_assert (sizeof(M500_conf) == 196, "sizeof(M500_conf) has changed, ensure that EEPROM_VERSION has been incremented, "
         "or if you added members in the end of struct, ensure that historically uninitialized values will be initialized."
         "If this is caused by change to more then 8bit processor, decide whether make this struct packed to save EEPROM,"
         "leave as it is to keep fast code, or reorder struct members to pack more tightly.");
@@ -232,8 +232,21 @@ static const M500_conf default_conf PROGMEM =
 #else // TMC2130
     {16,16,16,16},
 #endif
+    DEFAULT_TRAVEL_ACCELERATION,
 };
 
+
+static bool is_uninitialized(void* addr, uint8_t len)
+{
+    while(len--)
+    {
+        if(reinterpret_cast<uint8_t*>(addr)[len] != 0xff)
+            return false;
+    }
+    return true;
+}
+
+
 //! @brief Read M500 configuration
 //! @retval true Succeeded. Stored settings retrieved or default settings retrieved in case EEPROM has been erased.
 //! @retval false Failed. Default settings has been retrieved, because of older version or corrupted data.
@@ -257,13 +270,9 @@ bool Config_RetrieveSettings()
         for (uint8_t i = 0; i < (sizeof(cs.max_feedrate_silent)/sizeof(cs.max_feedrate_silent[0])); ++i)
         {
             const uint32_t erased = 0xffffffff;
-            bool initialized = false;
-
-            for(uint8_t j = 0; j < sizeof(float); ++j)
-            {
-                if(0xff != reinterpret_cast<uint8_t*>(&(cs.max_feedrate_silent[i]))[j]) initialized = true;
+            if (is_uninitialized(&(cs.max_feedrate_silent[i]), sizeof(float))) {
+                memcpy_P(&cs.max_feedrate_silent[i],&default_conf.max_feedrate_silent[i], sizeof(cs.max_feedrate_silent[i]));
             }
-            if (!initialized) memcpy_P(&cs.max_feedrate_silent[i],&default_conf.max_feedrate_silent[i], sizeof(cs.max_feedrate_silent[i]));
             if (erased == cs.max_acceleration_units_per_sq_second_silent[i]) {
                 memcpy_P(&cs.max_acceleration_units_per_sq_second_silent[i],&default_conf.max_acceleration_units_per_sq_second_silent[i],sizeof(cs.max_acceleration_units_per_sq_second_silent[i]));
             }
@@ -293,6 +302,9 @@ bool Config_RetrieveSettings()
 		tmc2130_set_res(E_AXIS, cs.axis_ustep_resolution[E_AXIS]);
 #endif //TMC2130
 
+        if(is_uninitialized(&cs.travel_acceleration, sizeof(cs.travel_acceleration)))
+            cs.travel_acceleration = cs.acceleration;
+
 		reset_acceleration_rates();
 
 		// Call updatePID (similar to when we have processed M301)

Firmware/ConfigurationStore.h

@@ -38,6 +38,7 @@ typedef struct
     float max_feedrate_silent[4]; //!< max speeds for silent mode
     unsigned long max_acceleration_units_per_sq_second_silent[4];
     unsigned char axis_ustep_resolution[4];
+    float travel_acceleration; //!< travel acceleration mm/s^2
 } M500_conf;
 
 extern M500_conf cs;

Firmware/Configuration_adv.h

@@ -338,6 +338,11 @@ const unsigned int dropsegments=5; //everything with less than this number of st
 // Control heater 0 and heater 1 in parallel.
 //#define HEATERS_PARALLEL
 
+//LCD status clock interval timer to switch between
+// remaining print time
+// and time to change/pause/interaction
+#define CLOCK_INTERVAL_TIME 5
+
 //===========================================================================
 //=============================Buffers           ============================
 //===========================================================================

Firmware/Marlin.h

@@ -350,10 +350,6 @@ extern unsigned long t_fan_rising_edge;
 extern bool mesh_bed_leveling_flag;
 extern bool mesh_bed_run_from_menu;
 
-extern bool sortAlpha;
-
-extern char dir_names[][9];
-
 extern int8_t lcd_change_fil_state;
 // save/restore printing
 extern bool saved_printing;
@@ -370,6 +366,8 @@ extern uint8_t print_percent_done_normal;
 extern uint16_t print_time_remaining_normal;
 extern uint8_t print_percent_done_silent;
 extern uint16_t print_time_remaining_silent;
+extern uint16_t print_time_to_change_normal;
+extern uint16_t print_time_to_change_silent;
 
 #define PRINT_TIME_REMAINING_INIT 0xffff
 
@@ -441,7 +439,6 @@ extern void cancel_saved_printing();
 
 
 //estimated time to end of the print
-extern uint16_t print_time_remaining();
 extern uint8_t calc_percent_done();
 
 

Firmware/Marlin_main.cpp

@@ -228,10 +228,6 @@ bool fan_state[2];
 int fan_edge_counter[2];
 int fan_speed[2];
 
-char dir_names[MAX_DIR_DEPTH][9];
-
-bool sortAlpha = false;
-
 
 float extruder_multiplier[EXTRUDERS] = {1.0
   #if EXTRUDERS > 1
@@ -320,6 +316,8 @@ uint8_t print_percent_done_normal = PRINT_PERCENT_DONE_INIT;
 uint16_t print_time_remaining_normal = PRINT_TIME_REMAINING_INIT; //estimated remaining print time in minutes
 uint8_t print_percent_done_silent = PRINT_PERCENT_DONE_INIT;
 uint16_t print_time_remaining_silent = PRINT_TIME_REMAINING_INIT; //estimated remaining print time in minutes
+uint16_t print_time_to_change_normal = PRINT_TIME_REMAINING_INIT; //estimated remaining time to next change in minutes
+uint16_t print_time_to_change_silent = PRINT_TIME_REMAINING_INIT; //estimated remaining time to next change in minutes
 
 uint32_t IP_address = 0;
 
@@ -711,124 +709,98 @@ void softReset()
 #endif
 
 
+static void factory_reset_stats(){
+    eeprom_update_dword((uint32_t *)EEPROM_TOTALTIME, 0);
+    eeprom_update_dword((uint32_t *)EEPROM_FILAMENTUSED, 0);
+
+    eeprom_update_byte((uint8_t *)EEPROM_CRASH_COUNT_X, 0);
+    eeprom_update_byte((uint8_t *)EEPROM_CRASH_COUNT_Y, 0);
+    eeprom_update_byte((uint8_t *)EEPROM_FERROR_COUNT, 0);
+    eeprom_update_byte((uint8_t *)EEPROM_POWER_COUNT, 0);
+
+    eeprom_update_word((uint16_t *)EEPROM_CRASH_COUNT_X_TOT, 0);
+    eeprom_update_word((uint16_t *)EEPROM_CRASH_COUNT_Y_TOT, 0);
+    eeprom_update_word((uint16_t *)EEPROM_FERROR_COUNT_TOT, 0);
+    eeprom_update_word((uint16_t *)EEPROM_POWER_COUNT_TOT, 0);
+
+    eeprom_update_word((uint16_t *)EEPROM_MMU_FAIL_TOT, 0);
+    eeprom_update_word((uint16_t *)EEPROM_MMU_LOAD_FAIL_TOT, 0);
+    eeprom_update_byte((uint8_t *)EEPROM_MMU_FAIL, 0);
+    eeprom_update_byte((uint8_t *)EEPROM_MMU_LOAD_FAIL, 0);
+}
+
 // Factory reset function
 // This function is used to erase parts or whole EEPROM memory which is used for storing calibration and and so on.
 // Level input parameter sets depth of reset
-int  er_progress = 0;
 static void factory_reset(char level)
-{	
+{
 	lcd_clear();
-    switch (level) {
-                   
-        // Level 0: Language reset
-        case 0:
-      Sound_MakeCustom(100,0,false);
-			lang_reset();
-            break;
-         
-		//Level 1: Reset statistics
-		case 1:
-      Sound_MakeCustom(100,0,false);
-			eeprom_update_dword((uint32_t *)EEPROM_TOTALTIME, 0);
-			eeprom_update_dword((uint32_t *)EEPROM_FILAMENTUSED, 0);
-
-			eeprom_update_byte((uint8_t *)EEPROM_CRASH_COUNT_X, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_CRASH_COUNT_Y, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_FERROR_COUNT, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_POWER_COUNT, 0);
-
-			eeprom_update_word((uint16_t *)EEPROM_CRASH_COUNT_X_TOT, 0);
-			eeprom_update_word((uint16_t *)EEPROM_CRASH_COUNT_Y_TOT, 0);
-			eeprom_update_word((uint16_t *)EEPROM_FERROR_COUNT_TOT, 0);
-			eeprom_update_word((uint16_t *)EEPROM_POWER_COUNT_TOT, 0);
-
-			eeprom_update_word((uint16_t *)EEPROM_MMU_FAIL_TOT, 0);
-			eeprom_update_word((uint16_t *)EEPROM_MMU_LOAD_FAIL_TOT, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_MMU_FAIL, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_MMU_LOAD_FAIL, 0);
-
-
-			lcd_menu_statistics();
-            
-			break;
+	Sound_MakeCustom(100,0,false);
+	switch (level) {
 
-        // Level 2: Prepare for shipping
-        case 2:
-			//lcd_puts_P(PSTR("Factory RESET"));
-            //lcd_puts_at_P(1,2,PSTR("Shipping prep"));
-            
-            // Force language selection at the next boot up.
-			lang_reset();
-            // Force the "Follow calibration flow" message at the next boot up.
-            calibration_status_store(CALIBRATION_STATUS_Z_CALIBRATION);
-			eeprom_write_byte((uint8_t*)EEPROM_WIZARD_ACTIVE, 1); //run wizard
-			farm_mode = false;
-			eeprom_update_byte((uint8_t*)EEPROM_FARM_MODE, farm_mode);
-
-            eeprom_update_dword((uint32_t *)EEPROM_TOTALTIME, 0);
-            eeprom_update_dword((uint32_t *)EEPROM_FILAMENTUSED, 0);
-
-			eeprom_update_byte((uint8_t *)EEPROM_CRASH_COUNT_X, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_CRASH_COUNT_Y, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_FERROR_COUNT, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_POWER_COUNT, 0);
-
-            eeprom_update_word((uint16_t *)EEPROM_CRASH_COUNT_X_TOT, 0);
-            eeprom_update_word((uint16_t *)EEPROM_CRASH_COUNT_Y_TOT, 0);
-            eeprom_update_word((uint16_t *)EEPROM_FERROR_COUNT_TOT, 0);
-            eeprom_update_word((uint16_t *)EEPROM_POWER_COUNT_TOT, 0);
-
-			eeprom_update_word((uint16_t *)EEPROM_MMU_FAIL_TOT, 0);
-			eeprom_update_word((uint16_t *)EEPROM_MMU_LOAD_FAIL_TOT, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_MMU_FAIL, 0);
-			eeprom_update_byte((uint8_t *)EEPROM_MMU_LOAD_FAIL, 0);
+	case 0: // Level 0: Language reset
+		lang_reset();
+		break;
 
-#ifdef FILAMENT_SENSOR
-			fsensor_enable();
-            fsensor_autoload_set(true);
-#endif //FILAMENT_SENSOR
-      Sound_MakeCustom(100,0,false);   
-			//_delay_ms(2000);
-            break;
+	case 1: //Level 1: Reset statistics
+		factory_reset_stats();
+		lcd_menu_statistics();
+		break;
 
-			// Level 3: erase everything, whole EEPROM will be set to 0xFF
+	case 2: // Level 2: Prepare for shipping
+		factory_reset_stats();
+		// [[fallthrough]] // there is no break intentionally
 
-		case 3:
-			lcd_puts_P(PSTR("Factory RESET"));
-			lcd_puts_at_P(1, 2, PSTR("ERASING all data"));
-
-      Sound_MakeCustom(100,0,false);
-			er_progress = 0;
-			lcd_puts_at_P(3, 3, PSTR("      "));
-			lcd_set_cursor(3, 3);
-			lcd_print(er_progress);
-
-			// Erase EEPROM
-			for (int i = 0; i < 4096; i++) {
-				eeprom_update_byte((uint8_t*)i, 0xFF);
-
-				if (i % 41 == 0) {
-					er_progress++;
-					lcd_puts_at_P(3, 3, PSTR("      "));
-					lcd_set_cursor(3, 3);
-					lcd_print(er_progress);
-					lcd_puts_P(PSTR("%"));
-				}
+	case 4: // Level 4: Preparation after being serviced
+		// Force language selection at the next boot up.
+		lang_reset();
+		// Force the "Follow calibration flow" message at the next boot up.
+		calibration_status_store(CALIBRATION_STATUS_Z_CALIBRATION);
+		eeprom_write_byte((uint8_t*)EEPROM_WIZARD_ACTIVE, 1); //run wizard
+		farm_mode = false;
+		eeprom_update_byte((uint8_t*)EEPROM_FARM_MODE, farm_mode);
+
+#ifdef FILAMENT_SENSOR
+		fsensor_enable();
+		fsensor_autoload_set(true);
+#endif //FILAMENT_SENSOR
+		break;
 
+	case 3:{ // Level 3: erase everything, whole EEPROM will be set to 0xFF
+		lcd_puts_P(PSTR("Factory RESET"));
+		lcd_puts_at_P(1, 2, PSTR("ERASING all data"));
+		uint16_t er_progress = 0;
+		lcd_set_cursor(3, 3);
+		lcd_space(6);
+		lcd_set_cursor(3, 3);
+		lcd_print(er_progress);
+
+		// Erase EEPROM
+		for (uint16_t i = 0; i < 4096; i++) {
+			eeprom_update_byte((uint8_t*)i, 0xFF);
+
+			if (i % 41 == 0) {
+				er_progress++;
+				lcd_set_cursor(3, 3);
+				lcd_space(6);
+				lcd_set_cursor(3, 3);
+				lcd_print(er_progress);
+				lcd_puts_P(PSTR("%"));
 			}
-			softReset();
 
+		}
+		softReset();
+		}break;
 
-			break;
-		case 4:
-			bowden_menu();
-			break;
-        
-        default:
-            break;
-    }
-    
 
+#ifdef SNMM
+	case 5:
+		bowden_menu();
+		break;
+#endif
+	default:
+		break;
+	}
 }
 
 extern "C" {
@@ -859,30 +831,27 @@ void factory_reset()
 		{
 			lcd_clear();
 
-
 			lcd_puts_P(PSTR("Factory RESET"));
 
-
 			SET_OUTPUT(BEEPER);
-  if(eSoundMode!=e_SOUND_MODE_SILENT)
-			WRITE(BEEPER, HIGH);
+			if(eSoundMode!=e_SOUND_MODE_SILENT)
+				WRITE(BEEPER, HIGH);
 
 			while (!READ(BTN_ENC));
 
 			WRITE(BEEPER, LOW);
 
-
-
 			_delay_ms(2000);
 
 			char level = reset_menu();
 			factory_reset(level);
 
 			switch (level) {
-			case 0: _delay_ms(0); break;
-			case 1: _delay_ms(0); break;
-			case 2: _delay_ms(0); break;
-			case 3: _delay_ms(0); break;
+			case 0:
+			case 1:
+			case 2:
+			case 3:
+			case 4: _delay_ms(0); break;
 			}
 
 		}
@@ -3043,6 +3012,8 @@ bool gcode_M45(bool onlyZ, int8_t verbosity_level)
 	//set_destination_to_current();
 	int l_feedmultiply = setup_for_endstop_move();
 	lcd_display_message_fullscreen_P(_T(MSG_AUTO_HOME));
+  raise_z_above(MESH_HOME_Z_SEARCH);
+  st_synchronize();
 	home_xy();
 
 	enable_endstops(false);
@@ -3799,31 +3770,90 @@ void process_commands()
   float tmp_motor_loud[3] = DEFAULT_PWM_MOTOR_CURRENT_LOUD;
   int8_t SilentMode;
 #endif
-  /*!
-  
-  ---------------------------------------------------------------------------------
-  ### M117 - Display Message <a href="https://reprap.org/wiki/G-code#M117:_Display_Message">M117: Display Message</a>
-  This causes the given message to be shown in the status line on an attached LCD.
-  It is processed early as to allow printing messages that contain G, M, N or T.
+    /*!
+
+    ---------------------------------------------------------------------------------
+    ### M117 - Display Message <a href="https://reprap.org/wiki/G-code#M117:_Display_Message">M117: Display Message</a>
+    This causes the given message to be shown in the status line on an attached LCD.
+    It is processed early as to allow printing messages that contain G, M, N or T.
+
+    ---------------------------------------------------------------------------------
+    ### Special internal commands
+    These are used by internal functions to process certain actions in the right order. Some of these are also usable by the user.
+    They are processed early as the commands are complex (strings).
+    These are only available on the MK3(S) as these require TMC2130 drivers:
+        - CRASH DETECTED
+        - CRASH RECOVER
+        - CRASH_CANCEL
+        - TMC_SET_WAVE
+        - TMC_SET_STEP
+        - TMC_SET_CHOP
+    */
+    if (code_seen_P(PSTR("M117"))) //moved to highest priority place to be able to to print strings which includes "G", "PRUSA" and "^"
+    {
+        starpos = (strchr(strchr_pointer + 5, '*'));
+        if (starpos != NULL)
+            *(starpos) = '\0';
+        lcd_setstatus(strchr_pointer + 5);
+        custom_message_type = CustomMsg::MsgUpdate;
+    }
+
+    /*!
+    ### M0, M1 - Stop the printer <a href="https://reprap.org/wiki/G-code#M0:_Stop_or_Unconditional_stop">M0: Stop or Unconditional stop</a>
+    #### Usage
+
+      M0 [P<ms<] [S<sec>] [string]
+      M1 [P<ms>] [S<sec>] [string] 
+
+    #### Parameters
   
-  ---------------------------------------------------------------------------------
-  ### Special internal commands
-  These are used by internal functions to process certain actions in the right order. Some of these are also usable by the user.
-  They are processed early as the commands are complex (strings).
-  These are only available on the MK3(S) as these require TMC2130 drivers:
-    - CRASH DETECTED
-    - CRASH RECOVER
-    - CRASH_CANCEL
-    - TMC_SET_WAVE
-    - TMC_SET_STEP
-    - TMC_SET_CHOP
- */
-  if (code_seen_P(PSTR("M117"))) { //moved to highest priority place to be able to to print strings which includes "G", "PRUSA" and "^"
-	  starpos = (strchr(strchr_pointer + 5, '*'));
-	  if (starpos != NULL)
-		  *(starpos) = '\0';
-	  lcd_setstatus(strchr_pointer + 5);
-  }
+    - `P<ms>`  - Expire time, in milliseconds
+    - `S<sec>` - Expire time, in seconds
+    - `string` - Must for M1 and optional for M0 message to display on the LCD
+    */
+
+    else if (code_seen_P(PSTR("M0")) || code_seen_P(PSTR("M1 "))) {// M0 and M1 - (Un)conditional stop - Wait for user button press on LCD
+        char *src = strchr_pointer + 2;
+        codenum = 0;
+        bool hasP = false, hasS = false;
+        if (code_seen('P')) {
+            codenum = code_value(); // milliseconds to wait
+            hasP = codenum > 0;
+        }
+        if (code_seen('S')) {
+            codenum = code_value() * 1000; // seconds to wait
+            hasS = codenum > 0;
+        }
+        starpos = strchr(src, '*');
+        if (starpos != NULL) *(starpos) = '\0';
+        while (*src == ' ') ++src;
+        custom_message_type = CustomMsg::M0Wait;
+        if (!hasP && !hasS && *src != '\0') {
+            lcd_setstatus(src);
+        } else {
+            LCD_MESSAGERPGM(_i("Wait for user..."));////MSG_USERWAIT
+        }
+        lcd_ignore_click();				//call lcd_ignore_click aslo for else ???
+        st_synchronize();
+        previous_millis_cmd = _millis();
+        if (codenum > 0) {
+            codenum += _millis();  // keep track of when we started waiting
+            KEEPALIVE_STATE(PAUSED_FOR_USER);
+            while(_millis() < codenum && !lcd_clicked()) {
+                manage_heater();
+                manage_inactivity(true);
+                lcd_update(0);
+            }
+            KEEPALIVE_STATE(IN_HANDLER);
+            lcd_ignore_click(false);
+        } else {
+            marlin_wait_for_click();
+        }
+        if (IS_SD_PRINTING)
+            custom_message_type = CustomMsg::Status;
+        else
+            LCD_MESSAGERPGM(_T(WELCOME_MSG));
+    }
 
 #ifdef TMC2130
 	else if (strncmp_P(CMDBUFFER_CURRENT_STRING, PSTR("CRASH_"), 6) == 0)
@@ -4004,9 +4034,9 @@ void process_commands()
 		}else if (code_seen_P("fv")) { // PRUSA fv
         // get file version
         #ifdef SDSUPPORT
-        card.openFile(strchr_pointer + 3,true);
+        card.openFileReadFilteredGcode(strchr_pointer + 3,true);
         while (true) {
-            uint16_t readByte = card.get();
+            uint16_t readByte = card.getFilteredGcodeChar();
             MYSERIAL.write(readByte);
             if (readByte=='\n') {
                 break;
@@ -4019,7 +4049,7 @@ void process_commands()
     } else if (code_seen_P(PSTR("M28"))) { // PRUSA M28
         trace();
         prusa_sd_card_upload = true;
-        card.openFile(strchr_pointer+4,false);
+        card.openFileWrite(strchr_pointer+4);
 
 	} else if (code_seen_P(PSTR("SN"))) { // PRUSA SN
         char SN[20];
@@ -5682,60 +5712,10 @@ if(eSoundMode!=e_SOUND_MODE_SILENT)
     switch(mcode_in_progress)
     {
 
-    /*!
-	### M0, M1 - Stop the printer <a href="https://reprap.org/wiki/G-code#M0:_Stop_or_Unconditional_stop">M0: Stop or Unconditional stop</a>
-    */
-    case 0: // M0 - Unconditional stop - Wait for user button press on LCD
-    case 1: // M1 - Conditional stop - Wait for user button press on LCD
-    {
-      char *src = strchr_pointer + 2;
-
-      codenum = 0;
-
-      bool hasP = false, hasS = false;
-      if (code_seen('P')) {
-        codenum = code_value(); // milliseconds to wait
-        hasP = codenum > 0;
-      }
-      if (code_seen('S')) {
-        codenum = code_value() * 1000; // seconds to wait
-        hasS = codenum > 0;
-      }
-      starpos = strchr(src, '*');
-      if (starpos != NULL) *(starpos) = '\0';
-      while (*src == ' ') ++src;
-      if (!hasP && !hasS && *src != '\0') {
-        lcd_setstatus(src);
-      } else {
-        LCD_MESSAGERPGM(_i("Wait for user..."));////MSG_USERWAIT
-      }
-
-      lcd_ignore_click();				//call lcd_ignore_click aslo for else ???
-      st_synchronize();
-      previous_millis_cmd = _millis();
-      if (codenum > 0){
-        codenum += _millis();  // keep track of when we started waiting
-		KEEPALIVE_STATE(PAUSED_FOR_USER);
-        while(_millis() < codenum && !lcd_clicked()){
-          manage_heater();
-          manage_inactivity(true);
-          lcd_update(0);
-        }
-		KEEPALIVE_STATE(IN_HANDLER);
-        lcd_ignore_click(false);
-      }else{
-        marlin_wait_for_click();
-      }
-      if (IS_SD_PRINTING)
-        LCD_MESSAGERPGM(_T(MSG_RESUMING_PRINT));
-      else
-        LCD_MESSAGERPGM(_T(WELCOME_MSG));
-    }
-    break;
-
     /*!
 	### M17 - Enable all axes <a href="https://reprap.org/wiki/G-code#M17:_Enable.2FPower_all_stepper_motors">M17: Enable/Power all stepper motors</a>
     */
+
     case 17:
         LCD_MESSAGERPGM(_i("No move."));////MSG_NO_MOVE
         enable_x();
@@ -5788,7 +5768,7 @@ if(eSoundMode!=e_SOUND_MODE_SILENT)
       starpos = (strchr(strchr_pointer + 4,'*'));
 	  if(starpos!=NULL)
         *(starpos)='\0';
-      card.openFile(strchr_pointer + 4,true);
+      card.openFileReadFilteredGcode(strchr_pointer + 4);
       break;
 
     /*!
@@ -5858,7 +5838,7 @@ if(eSoundMode!=e_SOUND_MODE_SILENT)
         strchr_pointer = strchr(npos,' ') + 1;
         *(starpos) = '\0';
       }
-      card.openFile(strchr_pointer+4,false);
+      card.openFileWrite(strchr_pointer+4);
       break;
 
     /*! ### M29 - Stop SD write <a href="https://reprap.org/wiki/G-code#M29:_Stop_writing_to_SD_card">M29: Stop writing to SD card</a>
@@ -5919,7 +5899,7 @@ if(eSoundMode!=e_SOUND_MODE_SILENT)
 
       if( card.cardOK )
       {
-        card.openFile(namestartpos,true,!call_procedure);
+        card.openFileReadFilteredGcode(namestartpos,!call_procedure);
         if(code_seen('S'))
           if(strchr_pointer<namestartpos) //only if "S" is occuring _before_ the filename
             card.setIndex(code_value_long());
@@ -6393,31 +6373,37 @@ Sigma_Exit:
 #endif		// Z_PROBE_REPEATABILITY_TEST 
 #endif		// ENABLE_AUTO_BED_LEVELING
 
-	/*!
-	### M73 - Set/get print progress <a href="https://reprap.org/wiki/G-code#M73:_Set.2FGet_build_percentage">M73: Set/Get build percentage</a>
-	#### Usage
-    
-	    M73 [ P | R | Q | S ]
+    /*!
+    ### M73 - Set/get print progress <a href="https://reprap.org/wiki/G-code#M73:_Set.2FGet_build_percentage">M73: Set/Get build percentage</a>
+    #### Usage
     
-	#### Parameters
-    - `P` - Percent in normal mode
-    - `R` - Time remaining in normal mode
-    - `Q` - Percent in silent mode
-    - `S` - Time in silent mode
-   */
-	case 73: //M73 show percent done and time remaining
-		if(code_seen('P')) print_percent_done_normal = code_value();
-		if(code_seen('R')) print_time_remaining_normal = code_value();
-		if(code_seen('Q')) print_percent_done_silent = code_value();
-		if(code_seen('S')) print_time_remaining_silent = code_value();
+        M73 [ P | R | Q | S | C | D ]
 
-		{
-			const char* _msg_mode_done_remain = _N("%S MODE: Percent done: %d; print time remaining in mins: %d\n");
-			printf_P(_msg_mode_done_remain, _N("NORMAL"), int(print_percent_done_normal), print_time_remaining_normal);
-			printf_P(_msg_mode_done_remain, _N("SILENT"), int(print_percent_done_silent), print_time_remaining_silent);
-		}
-		break;
+    #### Parameters
+        - `P` - Percent in normal mode
+        - `R` - Time remaining in normal mode
+        - `Q` - Percent in silent mode
+        - `S` - Time in silent mode
+        - `C` - Time to change/pause/user interaction in normal mode
+        - `D` - Time to change/pause/user interaction in silent mode
+    */
+    //!@todo update RepRap Gcode wiki
+    case 73: //M73 show percent done, time remaining and time to change/pause
+    {
+        if(code_seen('P')) print_percent_done_normal = code_value();
+        if(code_seen('R')) print_time_remaining_normal = code_value();
+        if(code_seen('Q')) print_percent_done_silent = code_value();
+        if(code_seen('S')) print_time_remaining_silent = code_value();
+        if(code_seen('C')) print_time_to_change_normal = code_value();
+        if(code_seen('D')) print_time_to_change_silent = code_value();
 
+    {
+        const char* _msg_mode_done_remain = _N("%S MODE: Percent done: %d; print time remaining in mins: %d; Change in mins: %d\n");
+        printf_P(_msg_mode_done_remain, _N("NORMAL"), int(print_percent_done_normal), print_time_remaining_normal, print_time_to_change_normal);
+        printf_P(_msg_mode_done_remain, _N("SILENT"), int(print_percent_done_silent), print_time_remaining_silent, print_time_to_change_silent);
+    }
+        break;
+    }
     /*!
 	### M104 - Set hotend temperature <a href="https://reprap.org/wiki/G-code#M104:_Set_Extruder_Temperature">M104: Set Extruder Temperature</a>
 	#### Usage
@@ -6990,14 +6976,14 @@ Sigma_Exit:
 	### M120 - Enable endstops <a href="https://reprap.org/wiki/G-code#M120:_Enable_endstop_detection">M120: Enable endstop detection</a>
     */
     case 120:
-      enable_endstops(false) ;
+      enable_endstops(true) ;
       break;
 
     /*!
 	### M121 - Disable endstops <a href="https://reprap.org/wiki/G-code#M121:_Disable_endstop_detection">M121: Disable endstop detection</a>
     */
     case 121:
-      enable_endstops(true) ;
+      enable_endstops(false) ;
       break;
 
     /*!
@@ -7258,7 +7244,7 @@ Sigma_Exit:
           // Legacy acceleration format. This format is used by the legacy Marlin, MK2 or MK3 firmware,
           // and it is also generated by Slic3r to control acceleration per extrusion type
           // (there is a separate acceleration settings in Slicer for perimeter, first layer etc).
-          cs.acceleration = code_value();
+          cs.acceleration = cs.travel_acceleration = code_value();
           // Interpret the T value as retract acceleration in the old Marlin format.
           if(code_seen('T'))
             cs.retract_acceleration = code_value();
@@ -7268,13 +7254,8 @@ Sigma_Exit:
             cs.acceleration = code_value();
           if(code_seen('R'))
             cs.retract_acceleration = code_value();
-          if(code_seen('T')) {
-            // Interpret the T value as the travel acceleration in the new Marlin format.
-            /*!
-            @todo Prusa3D firmware currently does not support travel acceleration value independent from the extruding acceleration value.
-            */
-            // travel_acceleration = code_value();
-          }
+          if(code_seen('T'))
+            cs.travel_acceleration = code_value();
         }
       }
       break;
@@ -8141,8 +8122,7 @@ Sigma_Exit:
     case 25:
     case 601:
     {
-        if (!isPrintPaused)
-        {
+        if (!isPrintPaused) {
             st_synchronize();
             ClearToSend(); //send OK even before the command finishes executing because we want to make sure it is not skipped because of cmdqueue_pop_front();
             cmdqueue_pop_front(); //trick because we want skip this command (M601) after restore
@@ -8156,8 +8136,7 @@ Sigma_Exit:
     */
     case 602:
     {
-        if (isPrintPaused)
-        {
+        if (isPrintPaused) {
 #ifdef FANCHECK
         if((fan_check_error == EFCE_FIXED) || (fan_check_error == EFCE_OK))
             lcd_resume_print();
@@ -10976,6 +10955,10 @@ void uvlo_()
 #endif
 	eeprom_update_word((uint16_t*)(EEPROM_EXTRUDEMULTIPLY), (uint16_t)extrudemultiply);
 
+	eeprom_update_float((float*)(EEPROM_UVLO_ACCELL), cs.acceleration);
+	eeprom_update_float((float*)(EEPROM_UVLO_RETRACT_ACCELL), cs.retract_acceleration);
+	eeprom_update_float((float*)(EEPROM_UVLO_TRAVEL_ACCELL), cs.travel_acceleration);
+
     // Store the saved target
     eeprom_update_float((float*)(EEPROM_UVLO_SAVED_TARGET+0*4), saved_target[X_AXIS]);
     eeprom_update_float((float*)(EEPROM_UVLO_SAVED_TARGET+1*4), saved_target[Y_AXIS]);
@@ -11288,8 +11271,8 @@ void restore_print_from_eeprom(bool mbl_was_active) {
 		}
 		dir_name[8] = '\0';
 		MYSERIAL.println(dir_name);
-		strcpy(dir_names[i], dir_name);
-		card.chdir(dir_name);
+		// strcpy(dir_names[i], dir_name);
+		card.chdir(dir_name, false);
 	}
 
 	for (int i = 0; i < 8; i++) {
@@ -11320,6 +11303,13 @@ void restore_print_from_eeprom(bool mbl_was_active) {
     sprintf_P(cmd, PSTR("G1 Z%f"), eeprom_read_float((float*)(EEPROM_UVLO_CURRENT_POSITION_Z)));
 	enquecommand(cmd);
 
+    // Restore acceleration settings
+    float acceleration = eeprom_read_float((float*)(EEPROM_UVLO_ACCELL));
+    float retract_acceleration = eeprom_read_float((float*)(EEPROM_UVLO_RETRACT_ACCELL));
+    float travel_acceleration = eeprom_read_float((float*)(EEPROM_UVLO_TRAVEL_ACCELL));
+    sprintf_P(cmd, PSTR("M204 P%f R%f T%f"), acceleration, retract_acceleration, travel_acceleration);
+    enquecommand(cmd);
+
   // Unretract.
     sprintf_P(cmd, PSTR("G1 E%0.3f F2700"), default_retraction);
     enquecommand(cmd);
@@ -11657,46 +11647,40 @@ void print_mesh_bed_leveling_table()
   SERIAL_ECHOLN();
 }
 
-uint16_t print_time_remaining() {
-	uint16_t print_t = PRINT_TIME_REMAINING_INIT;
-#ifdef TMC2130 
-	if (SilentModeMenu == SILENT_MODE_OFF) print_t = print_time_remaining_normal;
-	else print_t = print_time_remaining_silent;
-#else
-	print_t = print_time_remaining_normal;
-#endif //TMC2130
-	if ((print_t != PRINT_TIME_REMAINING_INIT) && (feedmultiply != 0)) print_t = 100ul * print_t / feedmultiply;
-	return print_t;
-}
-
 uint8_t calc_percent_done()
 {
-	//in case that we have information from M73 gcode return percentage counted by slicer, else return percentage counted as byte_printed/filesize
-	uint8_t percent_done = 0;
+    //in case that we have information from M73 gcode return percentage counted by slicer, else return percentage counted as byte_printed/filesize
+    uint8_t percent_done = 0;
 #ifdef TMC2130
-	if (SilentModeMenu == SILENT_MODE_OFF && print_percent_done_normal <= 100) {
-		percent_done = print_percent_done_normal;
-	}
-	else if (print_percent_done_silent <= 100) {
-		percent_done = print_percent_done_silent;
-	}
+    if (SilentModeMenu == SILENT_MODE_OFF && print_percent_done_normal <= 100)
+    {
+        percent_done = print_percent_done_normal;
+    }
+    else if (print_percent_done_silent <= 100)
+    {
+        percent_done = print_percent_done_silent;
+    }
 #else
-	if (print_percent_done_normal <= 100) {
-		percent_done = print_percent_done_normal;
-	}
+    if (print_percent_done_normal <= 100)
+    {
+        percent_done = print_percent_done_normal;
+    }
 #endif //TMC2130
-	else {
-		percent_done = card.percentDone();
-	}
-	return percent_done;
+    else
+    {
+        percent_done = card.percentDone();
+    }
+    return percent_done;
 }
 
 static void print_time_remaining_init()
 {
-	print_time_remaining_normal = PRINT_TIME_REMAINING_INIT;
-	print_time_remaining_silent = PRINT_TIME_REMAINING_INIT;
-	print_percent_done_normal = PRINT_PERCENT_DONE_INIT;
-	print_percent_done_silent = PRINT_PERCENT_DONE_INIT;
+    print_time_remaining_normal = PRINT_TIME_REMAINING_INIT;
+    print_percent_done_normal = PRINT_PERCENT_DONE_INIT;
+    print_time_remaining_silent = PRINT_TIME_REMAINING_INIT;
+    print_percent_done_silent = PRINT_PERCENT_DONE_INIT;
+    print_time_to_change_normal = PRINT_TIME_REMAINING_INIT;
+    print_time_to_change_silent = PRINT_TIME_REMAINING_INIT;
 }
 
 void load_filament_final_feed()
@@ -11786,7 +11770,7 @@ void M600_wait_for_user(float HotendTempBckp) {
 				delay_keep_alive(4);
 
 				if (_millis() > waiting_start_time + (unsigned long)M600_TIMEOUT * 1000) {
-					lcd_display_message_fullscreen_P(_i("Press knob to preheat nozzle and continue."));////MSG_PRESS_TO_PREHEAT c=20 r=4
+					lcd_display_message_fullscreen_P(_i("Press the knob to preheat nozzle and continue."));////MSG_PRESS_TO_PREHEAT c=20 r=4
 					wait_for_user_state = 1;
 					setAllTargetHotends(0);
 					st_synchronize();

Firmware/SdBaseFile.cpp

@@ -530,9 +530,9 @@ bool SdBaseFile::mkdir(SdBaseFile* parent, const uint8_t dname[11]) {
   * \return The value one, true, is returned for success and
   * the value zero, false, is returned for failure.
   */
-  bool SdBaseFile::open(const char* path, uint8_t oflag) {
-    return open(cwd_, path, oflag);
-  }
+bool SdBaseFile::open(const char* path, uint8_t oflag) {
+  return open(cwd_, path, oflag);
+}
 //------------------------------------------------------------------------------
 /** Open a file or directory by name.
  *

Firmware/SdBaseFile.h

@@ -281,8 +281,10 @@ class SdBaseFile {
   static void printFatDate(uint16_t fatDate);
   static void printFatTime( uint16_t fatTime);
   bool printName();
+protected:  
   int16_t read();
   int16_t read(void* buf, uint16_t nbyte);
+public:
   int8_t readDir(dir_t* dir, char* longFilename);
   static bool remove(SdBaseFile* dirFile, const char* path);
   bool remove();
@@ -321,7 +323,7 @@ class SdBaseFile {
   SdVolume* volume() const {return vol_;}
   int16_t write(const void* buf, uint16_t nbyte);
 //------------------------------------------------------------------------------
- private:
+ protected:
   // allow SdFat to set cwd_
   friend class SdFat;
   // global pointer to cwd dir

Firmware/SdFile.cpp

@@ -30,6 +30,191 @@
  */
 SdFile::SdFile(const char* path, uint8_t oflag) : SdBaseFile(path, oflag) {
 }
+
+bool SdFile::openFilteredGcode(SdBaseFile* dirFile, const char* path){
+    if( open(dirFile, path, O_READ) ){
+        // compute the block to start with
+        if( ! gfComputeNextFileBlock() )
+            return false;
+        gfReset();
+        return true;
+    } else {
+        return false;
+    }
+}
+
+bool SdFile::seekSetFilteredGcode(uint32_t pos){
+    if(! seekSet(pos) )return false;
+    if(! gfComputeNextFileBlock() )return false;
+    gfReset();
+    return true;
+}
+
+const uint8_t *SdFile::gfBlockBuffBegin() const {
+    return vol_->cache()->data; // this is constant for the whole time, so it should be fast and sleek
+}
+
+void SdFile::gfReset(){
+    // reset cache read ptr to its begin
+    gfReadPtr = gfBlockBuffBegin() + gfOffset;
+}
+
+// think twice before allowing this to inline - manipulating 4B longs is costly
+// moreover - this function has its parameters in registers only, so no heavy stack usage besides the call/ret
+void __attribute__((noinline)) SdFile::gfUpdateCurrentPosition(uint16_t inc){
+    curPosition_ += inc;
+}
+
+#define find_endl(resultP, startP) \
+__asm__ __volatile__ (  \
+"cycle:          \n" \
+"ld  r22, Z+     \n" \
+"cpi r22, 0x0A   \n" \
+"brne cycle      \n" \
+: "=z" (resultP) /* result of the ASM code - in our case the Z register (R30:R31) */ \
+: "z" (startP)   /* input of the ASM code - in our case the Z register as well (R30:R31) */ \
+: "r22"          /* modifying register R22 - so that the compiler knows */ \
+)
+
+// avoid calling the default heavy-weight read() for just one byte
+int16_t SdFile::readFilteredGcode(){
+    if( ! gfEnsureBlock() ){
+        goto eof_or_fail; // this is unfortunate :( ... other calls are using the cache and we can loose the data block of our gcode file
+    }
+    // assume, we have the 512B block cache filled and terminated with a '\n'
+    {
+    const uint8_t *start = gfReadPtr;
+
+    // It may seem unreasonable to copy the variable into a local one and copy it back at the end of this method,
+    // but there is an important point of view: the compiler is unsure whether it can optimize the reads/writes
+    // to gfReadPtr within this method, because it is a class member variable. 
+    // The compiler cannot see, if omitting read/write won't have any incorrect side-effects to the rest of the whole FW.
+    // So this trick explicitly states, that rdPtr is a local variable limited to the scope of this method,
+    // therefore the compiler can omit read/write to it (keep it in registers!) as it sees fit.
+    // And it does! Codesize dropped by 68B!
+    const uint8_t *rdPtr = gfReadPtr;
+
+    // the same applies to gfXBegin, codesize dropped another 100B!
+    const uint8_t *blockBuffBegin = gfBlockBuffBegin();
+    
+    uint8_t consecutiveCommentLines = 0;
+    while( *rdPtr == ';' ){
+        for(;;){
+
+            //while( *(++gfReadPtr) != '\n' ); // skip until a newline is found - suboptimal code!
+            // Wondering, why this "nice while cycle" is done in such a weird way using a separate find_endl() function?
+            // Have a look at the ASM code GCC produced!
+            
+            // At first - a separate find_endl() makes the compiler understand, 
+            // that I don't need to store gfReadPtr every time, I'm only interested in the final address where the '\n' was found
+            // - the cycle can run on CPU registers only without touching memory besides reading the character being compared.
+            // Not only makes the code run considerably faster, but is also 40B shorter!
+            // This was the generated code:
+            //FORCE_INLINE const uint8_t * find_endl(const uint8_t *p){
+            //   while( *(++p) != '\n' ); // skip until a newline is found
+            //   return p; }
+            //   11c5e:	movw	r30, r18
+            //   11c60:	subi	r18, 0xFF	; 255
+            //   11c62:	sbci	r19, 0xFF	; 255
+            //   11c64:	ld	r22, Z
+            //   11c66:	cpi	r22, 0x0A	; 10
+            //   11c68:	brne	.-12     	; 0x11c5e <get_command()+0x524>            
+
+            // Still, even that was suboptimal as the compiler seems not to understand the usage of ld r22, Z+ (the plus is important)
+            // aka automatic increment of the Z register (R30:R31 pair)
+            // There is no other way than pure ASM!
+            find_endl(rdPtr, rdPtr);
+
+            // found a newline, prepare the next block if block cache end reached
+            if( rdPtr - blockBuffBegin > 512 ){
+                // at the end of block cache, fill new data in
+                gfUpdateCurrentPosition( rdPtr - start - 1 );
+                if( ! gfComputeNextFileBlock() )goto eof_or_fail;
+                if( ! gfEnsureBlock() )goto eof_or_fail; // fetch it into RAM
+                rdPtr = start = blockBuffBegin;
+            } else {
+                if(consecutiveCommentLines >= 250){
+                    --rdPtr; // unget the already consumed newline
+                    goto emit_char;
+                }
+                // peek the next byte - we are inside the block at least at 511th index - still safe
+                if( *rdPtr == ';' ){
+                    // consecutive comment
+                    ++consecutiveCommentLines;
+                } else {
+                    --rdPtr; // unget the already consumed newline
+                    goto emit_char;
+                }
+                break; // found the real end of the line even across many blocks
+            }
+        }
+    }
+emit_char:
+    {
+        gfUpdateCurrentPosition( rdPtr - start + 1 );
+        int16_t rv = *rdPtr++;
+        
+        if( curPosition_ >= fileSize_ ){
+            // past the end of file
+            goto eof_or_fail;
+        } else if( rdPtr - blockBuffBegin >= 512 ){
+            // past the end of current bufferred block - prepare the next one...
+            if( ! gfComputeNextFileBlock() )goto eof_or_fail;
+            // don't need to force fetch the block here, it will get loaded on the next call
+            rdPtr = blockBuffBegin;
+        }
+
+        // save the current read ptr for the next run
+        gfReadPtr = rdPtr;
+        return rv;
+    }
+
+}
+
+eof_or_fail:
+    // make the rdptr point to a safe location - end of file
+    gfReadPtr = gfBlockBuffBegin() + 512;
+    return -1;
+}
+
+bool SdFile::gfEnsureBlock(){
+    if ( vol_->cacheRawBlock(gfBlock, SdVolume::CACHE_FOR_READ)){
+        // terminate with a '\n'
+        const uint16_t terminateOfs = fileSize_ - gfOffset;
+        vol_->cache()->data[ terminateOfs < 512 ? terminateOfs : 512 ] = '\n';
+        return true;
+    } else {
+        return false;
+    }
+}
+
+bool SdFile::gfComputeNextFileBlock() {
+    // error if not open or write only
+    if (!isOpen() || !(flags_ & O_READ)) return false;
+
+    gfOffset = curPosition_ & 0X1FF;  // offset in block
+    if (type_ == FAT_FILE_TYPE_ROOT_FIXED) {
+        // SHR by 9 means skip the last byte and shift just 3 bytes by 1
+        // -> should be 8 instructions... and not the horrible loop shifting 4 bytes at once
+        // still need to get some work on this
+        gfBlock = vol_->rootDirStart() + (curPosition_ >> 9); 
+    } else {
+        uint8_t blockOfCluster = vol_->blockOfCluster(curPosition_);
+        if (gfOffset == 0 && blockOfCluster == 0) {
+            // start of new cluster
+            if (curPosition_ == 0) {
+                // use first cluster in file
+                curCluster_ = firstCluster_;
+            } else {
+                // get next cluster from FAT
+                if (!vol_->fatGet(curCluster_, &curCluster_)) return false;
+            }
+        }
+        gfBlock = vol_->clusterStartBlock(curCluster_) + blockOfCluster;
+    }
+    return true;
+}
+
 //------------------------------------------------------------------------------
 /** Write data to an open file.
  *

Firmware/SdFile.h

@@ -34,7 +34,24 @@
  * \brief SdBaseFile with Print.
  */
 class SdFile : public SdBaseFile/*, public Print*/ {
- public:
+  // GCode filtering vars and methods - due to optimization reasons not wrapped in a separate class
+  
+  // beware - this read ptr is manipulated inside just 2 methods - readFilteredGcode and gfReset
+  // If you even want to call gfReset from readFilteredGcode, you must make sure
+  // to update gfReadPtr inside readFilteredGcode from a local copy (see explanation of this trick in readFilteredGcode)
+  const uint8_t *gfReadPtr;
+  
+  uint32_t gfBlock; // remember the current file block to be kept in cache - due to reuse of the memory, the block may fall out a must be read back
+  uint16_t gfOffset;
+
+  const uint8_t *gfBlockBuffBegin()const;
+  
+  void gfReset();
+  
+  bool gfEnsureBlock();
+  bool gfComputeNextFileBlock();
+  void gfUpdateCurrentPosition(uint16_t inc);
+public:
   SdFile() {}
   SdFile(const char* name, uint8_t oflag);
   #if ARDUINO >= 100
@@ -43,6 +60,9 @@ class SdFile : public SdBaseFile/*, public Print*/ {
    void write(uint8_t b);
   #endif
   
+  bool openFilteredGcode(SdBaseFile* dirFile, const char* path);
+  int16_t readFilteredGcode();
+  bool seekSetFilteredGcode(uint32_t pos);
   int16_t write(const void* buf, uint16_t nbyte);
   void write(const char* str);
   void write_P(PGM_P str);
@@ -51,4 +71,4 @@ class SdFile : public SdBaseFile/*, public Print*/ {
 #endif  // SdFile_h
 
 
-#endif
+#endif

Firmware/SdVolume.h

@@ -36,7 +36,7 @@
  */
 union cache_t {
            /** Used to access cached file data blocks. */
-  uint8_t  data[512];
+  uint8_t  data[512 + 1]; // abuse the last byte for saving '\n' - ugly optimization of read_filtered's inner skipping loop
            /** Used to access cached FAT16 entries. */
   uint16_t fat16[256];
            /** Used to access cached FAT32 entries. */
@@ -119,6 +119,7 @@ class SdVolume {
   bool dbgFat(uint32_t n, uint32_t* v) {return fatGet(n, v);}
 //------------------------------------------------------------------------------
  private:
+  friend class SdFile;
   // Allow SdBaseFile access to SdVolume private data.
   friend class SdBaseFile;
 
@@ -211,4 +212,4 @@ class SdVolume {
 #endif  // ALLOW_DEPRECATED_FUNCTIONS
 };
 #endif  // SdVolume
-#endif
+#endif

Firmware/cardreader.cpp

@@ -32,6 +32,7 @@ CardReader::CardReader()
    workDirDepth = 0;
    file_subcall_ctr=0;
    memset(workDirParents, 0, sizeof(workDirParents));
+   presort_flag = false;
 
    autostart_stilltocheck=true; //the SD start is delayed, because otherwise the serial cannot answer fast enough to make contact with the host software.
    lastnr=0;
@@ -69,12 +70,23 @@ char *createFilename(char *buffer,const dir_t &p) //buffer>12characters
 +*/
 
 void CardReader::lsDive(const char *prepend, SdFile parent, const char * const match/*=NULL*/) {
+	static uint8_t recursionCnt = 0;
+	// RAII incrementer for the recursionCnt
+	class _incrementer
+	{
+		public:
+		_incrementer() {recursionCnt++;}
+		~_incrementer() {recursionCnt--;}
+	} recursionCntIncrementer;
+	
 	dir_t p;
 	uint8_t cnt = 0;
 		// Read the next entry from a directory
 		while (parent.readDir(p, longFilename) > 0) {
-			// If the entry is a directory and the action is LS_SerialPrint
-			if (DIR_IS_SUBDIR(&p) && lsAction != LS_Count && lsAction != LS_GetFilename) {
+			if (recursionCnt > MAX_DIR_DEPTH)
+				return;
+			else if (DIR_IS_SUBDIR(&p) && lsAction != LS_Count && lsAction != LS_GetFilename) { // If the entry is a directory and the action is LS_SerialPrint
+				
 				// Get the short name for the item, which we know is a folder
 				char lfilename[FILENAME_LENGTH];
 				createFilename(lfilename, p);
@@ -241,18 +253,18 @@ void CardReader::initsd()
   
 }
 
-void CardReader::setroot()
+void CardReader::setroot(bool doPresort)
 {
-  /*if(!workDir.openRoot(&volume))
-  {
-    SERIAL_ECHOLNPGM(MSG_SD_WORKDIR_FAIL);
-  }*/
   workDir=root;
+  workDirDepth = 0;
   
   curDir=&workDir;
-  #ifdef SDCARD_SORT_ALPHA
-	  presort();
-  #endif
+#ifdef SDCARD_SORT_ALPHA
+	if (doPresort)
+		presort();
+	else
+		presort_flag = true;
+#endif
 }
 void CardReader::release()
 {
@@ -277,7 +289,7 @@ void CardReader::startFileprint()
 void CardReader::openLogFile(const char* name)
 {
   logging = true;
-  openFile(name, false);
+  openFileWrite(name);
 }
 
 void CardReader::getDirName(char* name, uint8_t level)
@@ -304,6 +316,18 @@ void CardReader::getAbsFilename(char *t)
   else
     t[0]=0;
 }
+
+void CardReader::printAbsFilenameFast()
+{
+    SERIAL_PROTOCOL('/');
+    for (uint8_t i = 0; i < getWorkDirDepth(); i++)
+    {
+        SERIAL_PROTOCOL(dir_names[i]);
+        SERIAL_PROTOCOL('/');
+    }
+    SERIAL_PROTOCOL(LONGEST_FILENAME);
+}
+
 /**
  * @brief Dive into subfolder
  *
@@ -317,19 +341,17 @@ void CardReader::getAbsFilename(char *t)
  * @param[in,out] fileName
  *  expects file name including path
  *  in case of absolute path, file name without path is returned
- * @param[in,out] dir SdFile object to operate with,
- *  in case of absolute path, curDir is modified to point to dir,
- *  so it is not possible to create on stack inside this function,
- *  as curDir would point to destroyed object.
  */
-void CardReader::diveSubfolder (const char *fileName, SdFile& dir)
+bool CardReader::diveSubfolder (const char *&fileName)
 {
     curDir=&root;
-    if (!fileName) return;
+    if (!fileName)
+        return 1;
 
     const char *dirname_start, *dirname_end;
     if (fileName[0] == '/') // absolute path
     {
+        setroot(false);
         dirname_start = fileName + 1;
         while (*dirname_start)
         {
@@ -340,23 +362,13 @@ void CardReader::diveSubfolder (const char *fileName, SdFile& dir)
             {
                 const size_t maxLen = 12;
                 char subdirname[maxLen+1];
-                subdirname[maxLen] = 0;
                 const size_t len = ((static_cast<size_t>(dirname_end-dirname_start))>maxLen) ? maxLen : (dirname_end-dirname_start);
                 strncpy(subdirname, dirname_start, len);
-                SERIAL_ECHOLN(subdirname);
-                if (!dir.open(curDir, subdirname, O_READ))
-                {
-                    SERIAL_PROTOCOLRPGM(MSG_SD_OPEN_FILE_FAIL);
-                    SERIAL_PROTOCOL(subdirname);
-                    SERIAL_PROTOCOLLN('.');
-                    return;
-                }
-                else
-                {
-                    //SERIAL_ECHOLN("dive ok");
-                }
-
-                curDir = &dir;
+                subdirname[len] = 0;
+                if (!chdir(subdirname, false))
+                    return 0;
+
+                curDir = &workDir;
                 dirname_start = dirname_end + 1;
             }
             else // the reminder after all /fsa/fdsa/ is the filename
@@ -373,100 +385,142 @@ void CardReader::diveSubfolder (const char *fileName, SdFile& dir)
     {
         curDir = &workDir;
     }
+    return 1;
 }
 
-void CardReader::openFile(const char* name,bool read, bool replace_current/*=true*/)
-{
-  if(!cardOK)
-    return;
-  if(file.isOpen())  //replacing current file by new file, or subfile call
-  {
-    if(!replace_current)
-    {
-     if((int)file_subcall_ctr>(int)SD_PROCEDURE_DEPTH-1)
-     {
-       // SERIAL_ERROR_START;
-       // SERIAL_ERRORPGM("trying to call sub-gcode files with too many levels. MAX level is:");
-       // SERIAL_ERRORLN(SD_PROCEDURE_DEPTH);
-       kill(_n("trying to call sub-gcode files with too many levels."), 1);
-       return;
-     }
-     
-     SERIAL_ECHO_START;
-     SERIAL_ECHOPGM("SUBROUTINE CALL target:\"");
-     SERIAL_ECHO(name);
-     SERIAL_ECHOPGM("\" parent:\"");
-     
-     //store current filename and position
-     getAbsFilename(filenames[file_subcall_ctr]);
-     
-     SERIAL_ECHO(filenames[file_subcall_ctr]);
-     SERIAL_ECHOPGM("\" pos");
-     SERIAL_ECHOLN(sdpos);
-     filespos[file_subcall_ctr]=sdpos;
-     file_subcall_ctr++;
-    }
-    else
-    {
-     SERIAL_ECHO_START;
-     SERIAL_ECHOPGM("Now doing file: ");
-     SERIAL_ECHOLN(name);
+static const char ofKill[] PROGMEM = "trying to call sub-gcode files with too many levels.";
+static const char ofSubroutineCallTgt[] PROGMEM = "SUBROUTINE CALL target:\"";
+static const char ofParent[] PROGMEM = "\" parent:\"";
+static const char ofPos[] PROGMEM = "\" pos";
+static const char ofNowDoingFile[] PROGMEM = "Now doing file: ";
+static const char ofNowFreshFile[] PROGMEM = "Now fresh file: ";
+static const char ofFileOpened[] PROGMEM = "File opened: ";
+static const char ofSize[] PROGMEM = " Size: ";
+static const char ofFileSelected[] PROGMEM = "File selected";
+static const char ofSDPrinting[] PROGMEM = "SD-PRINTING         ";
+static const char ofWritingToFile[] PROGMEM = "Writing to file: ";
+
+void CardReader::openFileReadFilteredGcode(const char* name, bool replace_current/* = false*/){
+    if(!cardOK)
+        return;
+    
+    if(file.isOpen()){  //replacing current file by new file, or subfile call
+        if(!replace_current){
+            if((int)file_subcall_ctr>(int)SD_PROCEDURE_DEPTH-1){
+                // SERIAL_ERROR_START;
+                // SERIAL_ERRORPGM("trying to call sub-gcode files with too many levels. MAX level is:");
+                // SERIAL_ERRORLN(SD_PROCEDURE_DEPTH);
+                kill(ofKill, 1);
+                return;
+            }
+            
+            SERIAL_ECHO_START;
+            SERIAL_ECHORPGM(ofSubroutineCallTgt);
+            SERIAL_ECHO(name);
+            SERIAL_ECHORPGM(ofParent);
+            
+            //store current filename and position
+            getAbsFilename(filenames[file_subcall_ctr]);
+            
+            SERIAL_ECHO(filenames[file_subcall_ctr]);
+            SERIAL_ECHORPGM(ofPos);
+            SERIAL_ECHOLN(sdpos);
+            filespos[file_subcall_ctr]=sdpos;
+            file_subcall_ctr++;
+        } else {
+            SERIAL_ECHO_START;
+            SERIAL_ECHORPGM(ofNowDoingFile);
+            SERIAL_ECHOLN(name);
+        }
+        file.close();
+    } else { //opening fresh file
+        file_subcall_ctr=0; //resetting procedure depth in case user cancels print while in procedure
+        SERIAL_ECHO_START;
+        SERIAL_ECHORPGM(ofNowFreshFile);
+        SERIAL_ECHOLN(name);
     }
-    file.close();
-  }
-  else //opening fresh file
-  {
-    file_subcall_ctr=0; //resetting procedure depth in case user cancels print while in procedure
-    SERIAL_ECHO_START;
-    SERIAL_ECHOPGM("Now fresh file: ");
-    SERIAL_ECHOLN(name);
-  }
-  sdprinting = false;
-
-  SdFile myDir;
-  const char *fname=name;
-  diveSubfolder(fname,myDir);
+    sdprinting = false;
+  
+    const char *fname=name;
+    if (!diveSubfolder(fname))
+      return;
+  
+    if (file.openFilteredGcode(curDir, fname)) {
+        filesize = file.fileSize();
+        SERIAL_PROTOCOLRPGM(ofFileOpened);////MSG_SD_FILE_OPENED
+        SERIAL_PROTOCOL(fname);
+        SERIAL_PROTOCOLRPGM(ofSize);////MSG_SD_SIZE
+        SERIAL_PROTOCOLLN(filesize);
+        sdpos = 0;
+        
+        SERIAL_PROTOCOLLNRPGM(ofFileSelected);////MSG_SD_FILE_SELECTED
+        getfilename(0, fname);
+        lcd_setstatus(longFilename[0] ? longFilename : fname);
+        lcd_setstatuspgm(ofSDPrinting);
+      } else {
+        SERIAL_PROTOCOLRPGM(MSG_SD_OPEN_FILE_FAIL);
+        SERIAL_PROTOCOL(fname);
+        SERIAL_PROTOCOLLN('.');
+      }
+}
 
-  if(read)
-  {
-    if (file.open(curDir, fname, O_READ)) 
-    {
-      filesize = file.fileSize();
-      SERIAL_PROTOCOLRPGM(_N("File opened: "));////MSG_SD_FILE_OPENED
-      SERIAL_PROTOCOL(fname);
-      SERIAL_PROTOCOLRPGM(_n(" Size: "));////MSG_SD_SIZE
-      SERIAL_PROTOCOLLN(filesize);
-      sdpos = 0;
-      
-      SERIAL_PROTOCOLLNRPGM(_N("File selected"));////MSG_SD_FILE_SELECTED
-      getfilename(0, fname);
-      lcd_setstatus(longFilename[0] ? longFilename : fname);
-      lcd_setstatuspgm(PSTR("SD-PRINTING"));
-    }
-    else
-    {
-      SERIAL_PROTOCOLRPGM(MSG_SD_OPEN_FILE_FAIL);
-      SERIAL_PROTOCOL(fname);
-      SERIAL_PROTOCOLLN('.');
-    }
-  }
-  else 
-  { //write
-    if (!file.open(curDir, fname, O_CREAT | O_APPEND | O_WRITE | O_TRUNC))
-    {
-      SERIAL_PROTOCOLRPGM(MSG_SD_OPEN_FILE_FAIL);
-      SERIAL_PROTOCOL(fname);
-      SERIAL_PROTOCOLLN('.');
+void CardReader::openFileWrite(const char* name)
+{
+    if(!cardOK)
+        return;
+    if(file.isOpen()){  //replacing current file by new file, or subfile call
+#if 0
+        // I doubt chained files support is necessary for file saving:
+        // Intentionally disabled because it takes a lot of code size while being not used
+
+        if((int)file_subcall_ctr>(int)SD_PROCEDURE_DEPTH-1){
+            // SERIAL_ERROR_START;
+            // SERIAL_ERRORPGM("trying to call sub-gcode files with too many levels. MAX level is:");
+            // SERIAL_ERRORLN(SD_PROCEDURE_DEPTH);
+            kill(ofKill, 1);
+            return;
+        }
+        
+        SERIAL_ECHO_START;
+        SERIAL_ECHORPGM(ofSubroutineCallTgt);
+        SERIAL_ECHO(name);
+        SERIAL_ECHORPGM(ofParent);
+        
+        //store current filename and position
+        getAbsFilename(filenames[file_subcall_ctr]);
+        
+        SERIAL_ECHO(filenames[file_subcall_ctr]);
+        SERIAL_ECHORPGM(ofPos);
+        SERIAL_ECHOLN(sdpos);
+        filespos[file_subcall_ctr]=sdpos;
+        file_subcall_ctr++;
+        file.close();
+#else
+        SERIAL_ECHOLNPGM("File already opened");
+#endif
+    } else { //opening fresh file
+        file_subcall_ctr=0; //resetting procedure depth in case user cancels print while in procedure
+        SERIAL_ECHO_START;
+        SERIAL_ECHORPGM(ofNowFreshFile);
+        SERIAL_ECHOLN(name);
     }
-    else
-    {
-      saving = true;
-      SERIAL_PROTOCOLRPGM(_N("Writing to file: "));////MSG_SD_WRITE_TO_FILE
-      SERIAL_PROTOCOLLN(name);
-      lcd_setstatus(fname);
+    sdprinting = false;
+    
+    const char *fname=name;
+    if (!diveSubfolder(fname))
+      return;
+    
+    //write
+    if (!file.open(curDir, fname, O_CREAT | O_APPEND | O_WRITE | O_TRUNC)){
+        SERIAL_PROTOCOLRPGM(MSG_SD_OPEN_FILE_FAIL);
+        SERIAL_PROTOCOL(fname);
+        SERIAL_PROTOCOLLN('.');
+    } else {
+        saving = true;
+        SERIAL_PROTOCOLRPGM(ofWritingToFile);////MSG_SD_WRITE_TO_FILE
+        SERIAL_PROTOCOLLN(fname);
+        lcd_setstatus(fname);
     }
-  }
-  
 }
 
 void CardReader::removeFile(const char* name)
@@ -475,9 +529,9 @@ void CardReader::removeFile(const char* name)
     file.close();
     sdprinting = false;
 
-    SdFile myDir;
     const char *fname=name;
-    diveSubfolder(fname,myDir);
+    if (!diveSubfolder(fname))
+      return;
 
     if (file.remove(curDir, fname)) 
     {
@@ -515,10 +569,8 @@ void CardReader::getStatus(bool arg_P)
     {
         if (arg_P)
         {
-            SERIAL_PROTOCOL('/');
-            for (uint8_t i = 0; i < getWorkDirDepth(); i++)
-                printf_P(PSTR("%s/"), dir_names[i]);
-            puts(filename);
+            printAbsFilenameFast();
+            SERIAL_PROTOCOLLN();
         }
         else
             SERIAL_PROTOCOLLN(LONGEST_FILENAME);
@@ -670,7 +722,7 @@ uint16_t CardReader::getnrfilenames()
   return nrFiles;
 }
 
-void CardReader::chdir(const char * relpath)
+bool CardReader::chdir(const char * relpath, bool doPresort)
 {
   SdFile newfile;
   SdFile *parent=&root;
@@ -678,23 +730,32 @@ void CardReader::chdir(const char * relpath)
   if(workDir.isOpen())
     parent=&workDir;
   
-  if(!newfile.open(*parent,relpath, O_READ))
+  if(!newfile.open(*parent,relpath, O_READ) || ((workDirDepth + 1) >= MAX_DIR_DEPTH))
   {
    SERIAL_ECHO_START;
    SERIAL_ECHORPGM(_n("Cannot enter subdir: "));////MSG_SD_CANT_ENTER_SUBDIR
    SERIAL_ECHOLN(relpath);
+   return 0;
   }
   else
   {
+    strcpy(dir_names[workDirDepth], relpath);
+    puts(relpath);
+
     if (workDirDepth < MAX_DIR_DEPTH) {
       for (int d = ++workDirDepth; d--;)
         workDirParents[d+1] = workDirParents[d];
       workDirParents[0]=*parent;
     }
     workDir=newfile;
-	#ifdef SDCARD_SORT_ALPHA
+
+#ifdef SDCARD_SORT_ALPHA
+	if (doPresort)
 		presort();
-	#endif
+	else
+		presort_flag = true;
+#endif
+	return 1;
   }
 }
 
@@ -1011,7 +1072,7 @@ void CardReader::printingHasFinished()
     {
       file.close();
       file_subcall_ctr--;
-      openFile(filenames[file_subcall_ctr],true,true);
+      openFileReadFilteredGcode(filenames[file_subcall_ctr],true);
       setIndex(filespos[file_subcall_ctr]);
       startFileprint();
     }

Firmware/cardreader.h

@@ -1,6 +1,8 @@
 #ifndef CARDREADER_H
 #define CARDREADER_H
 
+#define SDSUPPORT
+
 #ifdef SDSUPPORT
 
 #define MAX_DIR_DEPTH 6
@@ -19,7 +21,8 @@ public:
   //this is to delay autostart and hence the initialisaiton of the sd card to some seconds after the normal init, so the device is available quick after a reset
 
   void checkautostart(bool x); 
-  void openFile(const char* name,bool read,bool replace_current=true);
+  void openFileWrite(const char* name);
+  void openFileReadFilteredGcode(const char* name, bool replace_current = false);
   void openLogFile(const char* name);
   void removeFile(const char* name);
   void closefile(bool store_location=false);
@@ -34,14 +37,15 @@ public:
   uint16_t getnrfilenames();
   
   void getAbsFilename(char *t);
+  void printAbsFilenameFast();
   void getDirName(char* name, uint8_t level);
   uint16_t getWorkDirDepth();
   
 
   void ls(bool printLFN);
-  void chdir(const char * relpath);
+  bool chdir(const char * relpath, bool doPresort);
   void updir();
-  void setroot();
+  void setroot(bool doPresort);
 
   #ifdef SDCARD_SORT_ALPHA
      void presort();
@@ -58,9 +62,11 @@ public:
   #endif
 
   FORCE_INLINE bool isFileOpen() { return file.isOpen(); }
-  FORCE_INLINE bool eof() { return sdpos>=filesize ;};
-  FORCE_INLINE int16_t get() {  sdpos = file.curPosition();return (int16_t)file.read();};
-  FORCE_INLINE void setIndex(long index) {sdpos = index;file.seekSet(index);};
+  bool eof() { return sdpos>=filesize; }
+  // There may be a potential performance problem - when the comment reading fails, sdpos points to the last correctly read character.
+  // However, repeated reading (e.g. after power panic) the comment will be read again - it should survive correctly, it will just take a few moments to skip
+  FORCE_INLINE int16_t getFilteredGcodeChar() {  sdpos = file.curPosition();return (int16_t)file.readFilteredGcode();};
+  void setIndex(long index) {sdpos = index;file.seekSetFilteredGcode(index);};
   FORCE_INLINE uint8_t percentDone(){if(!isFileOpen()) return 0; if(filesize) return sdpos/((filesize+99)/100); else return 0;};
   FORCE_INLINE char* getWorkDirName(){workDir.getFilename(filename);return filename;};
   FORCE_INLINE uint32_t get_sdpos() { if (!isFileOpen()) return 0; else return(sdpos); };
@@ -82,6 +88,10 @@ public:
   char longFilename[LONG_FILENAME_LENGTH];
   bool filenameIsDir;
   int lastnr; //last number of the autostart;
+#ifdef SDCARD_SORT_ALPHA
+  bool presort_flag;
+  char dir_names[MAX_DIR_DEPTH][9];
+#endif // SDCARD_SORT_ALPHA
 private:
   SdFile root,*curDir,workDir,workDirParents[MAX_DIR_DEPTH];
   uint16_t workDirDepth;
@@ -155,7 +165,7 @@ private:
   int16_t nrFiles; //counter for the files in the current directory and recycled as position counter for getting the nrFiles'th name in the directory.
   char* diveDirName;
 
-  void diveSubfolder (const char *fileName, SdFile& dir);
+  bool diveSubfolder (const char *&fileName);
   void lsDive(const char *prepend, SdFile parent, const char * const match=NULL);
 #ifdef SDCARD_SORT_ALPHA
   void flush_presort();

Firmware/cmdqueue.cpp

@@ -584,13 +584,14 @@ void get_command()
   sd_count.value = 0;
   // Reads whole lines from the SD card. Never leaves a half-filled line in the cmdbuffer.
   while( !card.eof() && !stop_buffering) {
-    int16_t n=card.get();
+    int16_t n=card.getFilteredGcodeChar();
     char serial_char = (char)n;
-    if(serial_char == '\n' ||
-       serial_char == '\r' ||
-       ((serial_char == '#' || serial_char == ':') && comment_mode == false) ||
-       serial_count >= (MAX_CMD_SIZE - 1) || n==-1)
-    {
+    if( serial_char == '\n'
+     || serial_char == '\r'
+     || ((serial_char == '#' || serial_char == ':') )
+     || serial_count >= (MAX_CMD_SIZE - 1)
+     || n==-1
+    ){
       if(serial_char=='#')
         stop_buffering=true;
 
@@ -601,8 +602,7 @@ void get_command()
         // read from the sdcard into sd_count, 
         // so that the lenght of the already read empty lines and comments will be added
         // to the following non-empty line. 
-        comment_mode = false;
-        continue; //if empty line
+        return; // prevent cycling indefinitely - let manage_heaters do their job
       }
       // The new command buffer could be updated non-atomically, because it is not yet considered
       // to be inside the active queue.
@@ -618,10 +618,10 @@ void get_command()
 //      MYSERIAL.print(sd_count.value, DEC);
 //      SERIAL_ECHOPGM(") ");
 //      SERIAL_ECHOLN(cmdbuffer+bufindw+CMDHDRSIZE);
-//    SERIAL_ECHOPGM("cmdbuffer:");
-//    MYSERIAL.print(cmdbuffer);
-//    SERIAL_ECHOPGM("buflen:");
-//    MYSERIAL.print(buflen+1);
+//      SERIAL_ECHOPGM("cmdbuffer:");
+//      MYSERIAL.print(cmdbuffer);
+//      SERIAL_ECHOPGM("buflen:");
+//      MYSERIAL.print(buflen+1);
       sd_count.value = 0;
 
       cli();
@@ -640,15 +640,15 @@ void get_command()
       serial_count = 0; //clear buffer
     
       if(card.eof()) break;
-    
+
       // The following line will reserve buffer space if available.
       if (! cmdqueue_could_enqueue_back(MAX_CMD_SIZE-1, true))
           return;
     }
     else
     {
-      if(serial_char == ';') comment_mode = true;
-      else if(!comment_mode) cmdbuffer[bufindw+CMDHDRSIZE+serial_count++] = serial_char;
+        // there are no comments coming from the filtered file
+        cmdbuffer[bufindw+CMDHDRSIZE+serial_count++] = serial_char;
     }
   }
   if(card.eof())

Firmware/eeprom.h

@@ -319,8 +319,10 @@ static_assert(sizeof(Sheets) == EEPROM_SHEETS_SIZEOF, "Sizeof(Sheets) is not EEP
 | ^					| ^			| ^										| 00h 0			| ^						| PINDA has no temp compensation PINDA v1/2    		| ^				| ^
 | ^					| ^			| ^										| 01h 1			| ^						| PINDA has temp compensation aka SuperPINDA       	| ^				| ^
 | 0x0D15 3349		| char[20]	| EEPROM_PRUSA_SN						| SN[19] == 0	| ffffffffffffffff...	| PRUSA Serial number string						| PRUSA SN		| D3 Ax0d15 C20
+| 0x0D11 3345		| float		| EEPROM_UVLO_ACCELL                	| ???			| ff ff ff ffh			| Power panic saved normal acceleration     		| ???			| D3 Ax0d11 C4
+| 0x0D0D 3341		| float		| EEPROM_UVLO_RETRACT_ACCELL			| ???			| ff ff ff ffh			| Power panic saved retract acceleration     		| ???			| D3 Ax0d0d C4
+| 0x0D09 3337		| float		| EEPROM_UVLO_TRAVEL_ACCELL				| ???			| ff ff ff ffh			| Power panic saved travel acceleration     		| ???			| D3 Ax0d09 C4
 
-  
 | Address begin		| Bit/Type 	| Name 									| Valid values	| Default/FactoryReset	| Description 										| Gcode/Function| Debug code
 | :--:				| :--: 		| :--: 									| :--:			| :--:					| :--:												| :--:			| :--:
 | 0x0012 18			| uint16	| EEPROM_FIRMWARE_VERSION_END			| ???			| ff ffh 65535			| ???												| ???			| D3 Ax0012 C2
@@ -525,8 +527,13 @@ static Sheets * const EEPROM_Sheets_base = (Sheets*)(EEPROM_SHEETS_BASE);
 #define EEPROM_EXPERIMENTAL_VISIBILITY (EEPROM_ALTFAN_OVERRIDE-1) //uint8
 #define EEPROM_PINDA_TEMP_COMPENSATION (EEPROM_EXPERIMENTAL_VISIBILITY-1) //uint8
 #define EEPROM_PRUSA_SN (EEPROM_PINDA_TEMP_COMPENSATION-20) //char[20]
+
+#define EEPROM_UVLO_ACCELL (EEPROM_PRUSA_SN-4) // float
+#define EEPROM_UVLO_RETRACT_ACCELL (EEPROM_UVLO_ACCELL-4) // float
+#define EEPROM_UVLO_TRAVEL_ACCELL (EEPROM_UVLO_RETRACT_ACCELL-4) // float
+
 //This is supposed to point to last item to allow EEPROM overrun check. Please update when adding new items.
-#define EEPROM_LAST_ITEM EEPROM_PRUSA_SN
+#define EEPROM_LAST_ITEM EEPROM_UVLO_TRAVEL_ACCELL
 // !!!!!
 // !!!!! this is end of EEPROM section ... all updates MUST BE inserted before this mark !!!!!
 // !!!!!

Firmware/mesh_bed_calibration.cpp

@@ -944,7 +944,7 @@ static inline void update_current_position_z()
 
 // At the current position, find the Z stop.
 
-inline bool find_bed_induction_sensor_point_z(float minimum_z, uint8_t n_iter, int
+bool find_bed_induction_sensor_point_z(float minimum_z, uint8_t n_iter, int
 #ifdef SUPPORT_VERBOSITY
     verbosity_level
 #endif //SUPPORT_VERBOSITY
@@ -1065,7 +1065,7 @@ error:
 }
 
 #ifdef NEW_XYZCAL
-extern bool xyzcal_find_bed_induction_sensor_point_xy();
+bool xyzcal_find_bed_induction_sensor_point_xy();
 #endif //NEW_XYZCAL
 // Search around the current_position[X,Y],
 // look for the induction sensor response.
@@ -1081,7 +1081,7 @@ extern bool xyzcal_find_bed_induction_sensor_point_xy();
 #endif //HEATBED_V2
 
 #ifdef HEATBED_V2
-inline bool find_bed_induction_sensor_point_xy(int
+bool find_bed_induction_sensor_point_xy(int
 #if !defined (NEW_XYZCAL) && defined (SUPPORT_VERBOSITY)
         verbosity_level
 #endif
@@ -1335,7 +1335,7 @@ inline bool find_bed_induction_sensor_point_xy(int
 #endif //NEW_XYZCAL
 }
 #else //HEATBED_V2
-inline bool find_bed_induction_sensor_point_xy(int verbosity_level)
+bool find_bed_induction_sensor_point_xy(int verbosity_level)
 {
 #ifdef NEW_XYZCAL
 	return xyzcal_find_bed_induction_sensor_point_xy();

Firmware/mesh_bed_calibration.h

@@ -146,9 +146,9 @@ inline bool world2machine_clamp(float &x, float &y)
     return clamped;
 }
 
-extern bool find_bed_induction_sensor_point_z(float minimum_z = -10.f, uint8_t n_iter = 3, int verbosity_level = 0);
-extern bool find_bed_induction_sensor_point_xy(int verbosity_level = 0);
-extern void go_home_with_z_lift();
+bool find_bed_induction_sensor_point_z(float minimum_z = -10.f, uint8_t n_iter = 3, int verbosity_level = 0);
+bool find_bed_induction_sensor_point_xy(int verbosity_level = 0);
+void go_home_with_z_lift();
 
 /**
  * @brief Bed skew and offest detection result

Firmware/messages.c

@@ -16,7 +16,7 @@ const char MSG_BED_DONE[] PROGMEM_I1 = ISTR("Bed done"); ////
 const char MSG_BED_HEATING[] PROGMEM_I1 = ISTR("Bed Heating"); ////
 const char MSG_BED_LEVELING_FAILED_POINT_LOW[] PROGMEM_I1 = ISTR("Bed leveling failed. Sensor didnt trigger. Debris on nozzle? Waiting for reset."); ////c=20 r=5
 const char MSG_BED_SKEW_OFFSET_DETECTION_FITTING_FAILED[] PROGMEM_I1 = ISTR("XYZ calibration failed. Please consult the manual."); ////c=20 r=8
-const char MSG_BELT_STATUS[] PROGMEM_I1 = ISTR("Belt Status");////c=18
+const char MSG_BELT_STATUS[] PROGMEM_I1 = ISTR("Belt status");////c=18
 const char MSG_CALIBRATE_Z_AUTO[] PROGMEM_I1 = ISTR("Calibrating Z"); ////c=20 r=2
 const char MSG_CARD_MENU[] PROGMEM_I1 = ISTR("Print from SD"); ////
 const char MSG_CHECKING_X[] PROGMEM_I1 = ISTR("Checking X axis"); ////c=20
@@ -29,7 +29,7 @@ const char MSG_CRASHDETECT[] PROGMEM_I1 = ISTR("Crash det."); ////c=13
 const char MSG_ERROR[] PROGMEM_I1 = ISTR("ERROR:"); ////
 const char MSG_EXTRUDER[] PROGMEM_I1 = ISTR("Extruder"); ////c=17
 const char MSG_FANS_CHECK[] PROGMEM_I1 = ISTR("Fans check"); ////c=13
-const char MSG_FIL_RUNOUTS[] PROGMEM_I1 = ISTR("Fil. runouts"); ////c=14
+const char MSG_FIL_RUNOUTS[] PROGMEM_I1 = ISTR("Fil. runouts"); ////c=15
 const char MSG_FILAMENT[] PROGMEM_I1 = ISTR("Filament"); ////c=17 r=1
 const char MSG_FAN_SPEED[] PROGMEM_I1 = ISTR("Fan speed"); ////c=14
 const char MSG_FILAMENT_CLEAN[] PROGMEM_I1 = ISTR("Filament extruding & with correct color?"); ////c=20 r=2
@@ -65,15 +65,15 @@ const char MSG_STEEL_SHEETS[] PROGMEM_I1 = ISTR("Steel sheets"); ////c=18
 const char MSG_MEASURE_BED_REFERENCE_HEIGHT_LINE1[] PROGMEM_I1 = ISTR("Measuring reference height of calibration point"); ////c=60
 const char MSG_MEASURE_BED_REFERENCE_HEIGHT_LINE2[] PROGMEM_I1 = ISTR(" of 9"); ////c=14
 const char MSG_MENU_CALIBRATION[] PROGMEM_I1 = ISTR("Calibration"); ////
-const char MSG_MMU_FAILS[] PROGMEM_I1 = ISTR("MMU fails"); ////c=14
-const char MSG_MMU_LOAD_FAILS[] PROGMEM_I1 = ISTR("MMU load fails"); ////c=14
+const char MSG_MMU_FAILS[] PROGMEM_I1 = ISTR("MMU fails"); ////c=15
+const char MSG_MMU_LOAD_FAILS[] PROGMEM_I1 = ISTR("MMU load fails"); ////c=15
 const char MSG_NO[] PROGMEM_I1 = ISTR("No"); ////
 const char MSG_NOZZLE[] PROGMEM_I1 = ISTR("Nozzle"); ////
 const char MSG_PAPER[] PROGMEM_I1 = ISTR("Place a sheet of paper under the nozzle during the calibration of first 4 points. If the nozzle catches the paper, power off the printer immediately."); ////c=20 r=10
 const char MSG_PAUSE_PRINT[] PROGMEM_I1 = ISTR("Pause print");////c=18
 const char MSG_PLACE_STEEL_SHEET[] PROGMEM_I1 = ISTR("Please place steel sheet on heatbed."); ////c=20 r=4
 const char MSG_PLEASE_WAIT[] PROGMEM_I1 = ISTR("Please wait"); ////c=20
-const char MSG_POWER_FAILURES[] PROGMEM_I1 = ISTR("Power failures"); ////c=14
+const char MSG_POWER_FAILURES[] PROGMEM_I1 = ISTR("Power failures"); ////c=15
 const char MSG_PREHEAT_NOZZLE[] PROGMEM_I1 = ISTR("Preheat the nozzle!"); ////c=20
 const char MSG_PRESS_TO_UNLOAD[] PROGMEM_I1 = ISTR("Please press the knob to unload filament"); ////c=20 r=4
 const char MSG_PRINT_ABORTED[] PROGMEM_I1 = ISTR("Print aborted"); ////c=20
@@ -132,7 +132,7 @@ const char MSG_MODEL[] PROGMEM_I1 = ISTR("Model"); ////
 const char MSG_FIRMWARE[] PROGMEM_I1 = ISTR("Firmware"); ////
 const char MSG_GCODE[] PROGMEM_I1 = ISTR("Gcode"); ////
 const char MSG_GCODE_DIFF_PRINTER_CONTINUE[] PROGMEM_I1 = ISTR("G-code sliced for a different printer type. Continue?"); ////c=20 r=5
-const char MSG_GCODE_DIFF_PRINTER_CANCELLED[] PROGMEM_I1 =ISTR("G-code sliced for a different printer type. Please re-slice the model again. Print cancelled."); ////c=20 r=6
+const char MSG_GCODE_DIFF_PRINTER_CANCELLED[] PROGMEM_I1 =ISTR("G-code sliced for a different printer type. Please re-slice the model again. Print cancelled."); ////c=20 r=7
 const char MSG_NOZZLE_DIAMETER[] PROGMEM_I1 = ISTR("Nozzle d."); ////
 const char MSG_MMU_MODE[] PROGMEM_I1 = ISTR("MMU Mode"); ////
 const char MSG_SD_CARD[] PROGMEM_I1 = ISTR("SD card"); ////
@@ -200,3 +200,4 @@ const char MSG_M112_KILL[] PROGMEM_N1 = "M112 called. Emergency Stop."; ////c=20
 const char MSG_ADVANCE_K[] PROGMEM_N1 = "Advance K:"; ////c=13
 const char MSG_POWERPANIC_DETECTED[] PROGMEM_N1 = "POWER PANIC DETECTED"; ////c=20
 const char MSG_LCD_STATUS_CHANGED[] PROGMEM_N1 = "LCD status changed";
+const char MSG_FILE_SELECTED[] PROGMEM_N1 = "File selected"; ////c=20

Firmware/messages.h

@@ -200,6 +200,7 @@ extern const char MSG_M112_KILL[];
 extern const char MSG_ADVANCE_K[];
 extern const char MSG_POWERPANIC_DETECTED[];
 extern const char MSG_LCD_STATUS_CHANGED[];
+extern const char MSG_FILE_SELECTED[];
 
 #if defined(__cplusplus)
 }

Firmware/planner.cpp

@@ -1082,7 +1082,8 @@ Having the real displacement of the head, we can calculate the total movement le
   }
   else
   {
-    block->acceleration_st = ceil(cs.acceleration * steps_per_mm); // convert to: acceleration steps/sec^2
+    float acceleration = (block->steps_e.wide == 0? cs.travel_acceleration: cs.acceleration);
+    block->acceleration_st = ceil(acceleration * steps_per_mm); // convert to: acceleration steps/sec^2
 
     #ifdef LIN_ADVANCE
     /**

Firmware/ultralcd.cpp

@@ -57,7 +57,7 @@
 
 int scrollstuff = 0;
 char longFilenameOLD[LONG_FILENAME_LENGTH];
-
+int clock_interval = 0;
 
 static void lcd_sd_updir();
 static void lcd_mesh_bed_leveling_settings();
@@ -75,11 +75,6 @@ int8_t FSensorStateMenu = 1;
 bool bMenuFSDetect=false;
 #endif //IR_SENSOR_ANALOG
 
-
-#ifdef SDCARD_SORT_ALPHA
-bool presort_flag = false;
-#endif
-
 LcdCommands lcd_commands_type = LcdCommands::Idle;
 static uint8_t lcd_commands_step = 0;
 
@@ -676,185 +671,219 @@ void lcdui_print_cmd_diag(void)
 // Print time (8 chars total)
 void lcdui_print_time(void)
 {
-	//if remaining print time estimation is available print it else print elapsed time
-	uint16_t print_t = 0;
-	if (print_time_remaining_normal != PRINT_TIME_REMAINING_INIT)
-		print_t = print_time_remaining();
-	else if(starttime != 0)
-		print_t = _millis() / 60000 - starttime / 60000;
-	int chars = 0;
-	if ((PRINTER_ACTIVE) && ((print_time_remaining_normal != PRINT_TIME_REMAINING_INIT) || (starttime != 0)))
-	{
-          char suff = ' ';
-          char suff_doubt = ' ';
-		if (print_time_remaining_normal != PRINT_TIME_REMAINING_INIT)
-          {
-               suff = 'R';
-               if (feedmultiply != 100)
-                    suff_doubt = '?';
-          }
-		if (print_t < 6000) //time<100h
-			chars = lcd_printf_P(_N("%c%02u:%02u%c%c"), LCD_STR_CLOCK[0], print_t / 60, print_t % 60, suff, suff_doubt);
-		else //time>=100h
-			chars = lcd_printf_P(_N("%c%3uh %c%c"), LCD_STR_CLOCK[0], print_t / 60, suff, suff_doubt);
-	}
-	else
-		chars = lcd_printf_P(_N("%c--:--  "), LCD_STR_CLOCK[0]);
-	lcd_space(8 - chars);
+    //if remaining print time estimation is available print it else print elapsed time
+    int chars = 0;
+    if ((PRINTER_ACTIVE) && (starttime != 0))
+    {
+        uint16_t print_t = 0;
+        uint16_t print_tr = 0;
+        uint16_t print_tc = 0;
+        char suff = ' ';
+        char suff_doubt = ' ';
+
+#ifdef TMC2130
+        if (SilentModeMenu != SILENT_MODE_OFF)
+        {
+            if (print_time_remaining_silent != PRINT_TIME_REMAINING_INIT)
+            {
+                print_tr = print_time_remaining_silent;
+            }
+//#ifdef CLOCK_INTERVAL_TIME
+            if (print_time_to_change_silent != PRINT_TIME_REMAINING_INIT)
+            {
+                print_tc = print_time_to_change_silent;
+            }
+//#endif //CLOCK_INTERVAL_TIME
+        }
+        else
+        {
+#endif //TMC2130
+            if (print_time_remaining_normal != PRINT_TIME_REMAINING_INIT)
+            {
+                print_tr = print_time_remaining_normal;
+            }
+//#ifdef CLOCK_INTERVAL_TIME
+            if (print_time_to_change_normal != PRINT_TIME_REMAINING_INIT)
+            {
+                print_tc = print_time_to_change_normal;
+            }
+//#endif //CLOCK_INTERVAL_TIME
+#ifdef TMC2130
+        }
+#endif //TMC2130
+
+//#ifdef CLOCK_INTERVAL_TIME
+        if (clock_interval == CLOCK_INTERVAL_TIME*2)
+        {
+            clock_interval = 0;
+        }
+        clock_interval++;
+
+        if (print_tc != 0 && clock_interval > CLOCK_INTERVAL_TIME)
+        {
+            print_t = print_tc;
+            suff = 'C';
+        }
+        else
+//#endif //CLOCK_INTERVAL_TIME 
+        if (print_tr != 0)
+        {
+            print_t = print_tr;
+            suff = 'R';
+        }
+        else
+        {
+            print_t = _millis() / 60000 - starttime / 60000; 
+        }
+
+        if (feedmultiply != 100 && (print_t == print_tr || print_t == print_tc))
+        {
+            suff_doubt = '?';
+            print_t = 100ul * print_t / feedmultiply;
+        }
+
+        if (print_t < 6000) //time<100h
+            chars = lcd_printf_P(_N("%c%02u:%02u%c%c"), LCD_STR_CLOCK[0], print_t / 60, print_t % 60, suff, suff_doubt);
+        else //time>=100h
+            chars = lcd_printf_P(_N("%c%3uh %c%c"), LCD_STR_CLOCK[0], print_t / 60, suff, suff_doubt);
+    }
+    else
+        chars = lcd_printf_P(_N("%c--:--  "), LCD_STR_CLOCK[0]);
+    lcd_space(8 - chars);
 }
 
-//Print status line on status screen
+//! @Brief Print status line on status screen
 void lcdui_print_status_line(void)
 {
-	if (IS_SD_PRINTING)
-	{
-		if (strcmp(longFilenameOLD, (card.longFilename[0] ? card.longFilename : card.filename)) != 0)
-		{
-			memset(longFilenameOLD, '\0', strlen(longFilenameOLD));
-			sprintf_P(longFilenameOLD, PSTR("%s"), (card.longFilename[0] ? card.longFilename : card.filename));
-			scrollstuff = 0;
-		}
-	}
+    if (IS_SD_PRINTING) {
+        if (strcmp(longFilenameOLD, (card.longFilename[0] ? card.longFilename : card.filename)) != 0) {
+            memset(longFilenameOLD, '\0', strlen(longFilenameOLD));
+            sprintf_P(longFilenameOLD, PSTR("%s"), (card.longFilename[0] ? card.longFilename : card.filename));
+            scrollstuff = 0;
+        }
+    }
 
-	if (heating_status)
-	{ // If heating flag, show progress of heating
-		heating_status_counter++;
-		if (heating_status_counter > 13)
-		{
-			heating_status_counter = 0;
-		}
-		lcd_set_cursor(7, 3);
-		lcd_space(13);
+    if (heating_status) { // If heating flag, show progress of heating
+        heating_status_counter++;
+        if (heating_status_counter > 13) {
+            heating_status_counter = 0;
+        }
+        lcd_set_cursor(7, 3);
+        lcd_space(13);
+
+        for (unsigned int dots = 0; dots < heating_status_counter; dots++) {
+            lcd_putc_at(7 + dots, 3, '.');
+        }
+        switch (heating_status) {
+        case 1:
+            lcd_puts_at_P(0, 3, _T(MSG_HEATING));
+            break;
+        case 2:
+            lcd_puts_at_P(0, 3, _T(MSG_HEATING_COMPLETE));
+            heating_status = 0;
+            heating_status_counter = 0;
+            break;
+        case 3:
+            lcd_puts_at_P(0, 3, _T(MSG_BED_HEATING));
+            break;
+        case 4:
+            lcd_puts_at_P(0, 3, _T(MSG_BED_DONE));
+            heating_status = 0;
+            heating_status_counter = 0;
+            break;
+        default:
+            break;
+        }
+    }
+    else if ((IS_SD_PRINTING) && (custom_message_type == CustomMsg::Status)) { // If printing from SD, show what we are printing
+        if(strlen(longFilenameOLD) > LCD_WIDTH) {
+            int inters = 0;
+            int gh = scrollstuff;
+            while (((gh - scrollstuff) < LCD_WIDTH) && (inters == 0)) {
+                if (longFilenameOLD[gh] == '\0') {
+                    lcd_set_cursor(gh - scrollstuff, 3);
+                    lcd_print(longFilenameOLD[gh - 1]);
+                    scrollstuff = 0;
+                    gh = scrollstuff;
+                    inters = 1;
+                } else {
+                    lcd_set_cursor(gh - scrollstuff, 3);
+                    lcd_print(longFilenameOLD[gh - 1]);
+                    gh++;
+                }
+            }
+            scrollstuff++;
+        } else {
+            lcd_printf_P(PSTR("%-20s"), longFilenameOLD);
+        }
+    } else { // Otherwise check for other special events
+        switch (custom_message_type) {
+        case CustomMsg::MsgUpdate: //Short message even while printing from SD
+        case CustomMsg::Status: // Nothing special, print status message normally
+        case CustomMsg::M0Wait: // M0/M1 Wait command working even from SD
+            lcd_print(lcd_status_message);
+        break;
+        case CustomMsg::MeshBedLeveling: // If mesh bed leveling in progress, show the status
+            if (custom_message_state > 10) {
+                lcd_set_cursor(0, 3);
+                lcd_space(20);
+                lcd_puts_at_P(0, 3, _T(MSG_CALIBRATE_Z_AUTO));
+                lcd_puts_P(PSTR(" : "));
+                lcd_print(custom_message_state-10);
+            } else {
+                if (custom_message_state == 3)
+                {
+                    lcd_puts_P(_T(WELCOME_MSG));
+                    lcd_setstatuspgm(_T(WELCOME_MSG));
+                    custom_message_type = CustomMsg::Status;
+                }
+                if (custom_message_state > 3 && custom_message_state <= 10 ) {
+                    lcd_set_cursor(0, 3);
+                    lcd_space(19);
+                    lcd_puts_at_P(0, 3, _i("Calibration done"));////MSG_HOMEYZ_DONE
+                    custom_message_state--;
+                }
+            }
+            break;
+        case CustomMsg::FilamentLoading: // If loading filament, print status
+            lcd_print(lcd_status_message);
+            break;
+        case CustomMsg::PidCal: // PID tuning in progress
+            lcd_print(lcd_status_message);
+            if (pid_cycle <= pid_number_of_cycles && custom_message_state > 0) {
+                lcd_set_cursor(10, 3);
+                lcd_print(itostr3(pid_cycle));
+                lcd_print('/');
+                lcd_print(itostr3left(pid_number_of_cycles));
+            }
+            break;
+        case CustomMsg::TempCal: // PINDA temp calibration in progress
+            char statusLine[LCD_WIDTH + 1];
+            sprintf_P(statusLine, PSTR("%-20S"), _T(MSG_TEMP_CALIBRATION));
+            char progress[4];
+            sprintf_P(progress, PSTR("%d/6"), custom_message_state);
+            memcpy(statusLine + 12, progress, sizeof(progress) - 1);
+            lcd_set_cursor(0, 3);
+            lcd_print(statusLine);
+            break;
+        case CustomMsg::TempCompPreheat: // temp compensation preheat
+            lcd_puts_at_P(0, 3, _i("PINDA Heating"));////MSG_PINDA_PREHEAT c=20 r=1
+            if (custom_message_state <= PINDA_HEAT_T) {
+                lcd_puts_P(PSTR(": "));
+                lcd_print(custom_message_state); //seconds
+                lcd_print(' ');
+            }
+            break;
+        case CustomMsg::Resuming: //Resuming
+            lcd_puts_at_P(0, 3, _T(MSG_RESUMING_PRINT));
+            break;
+        }
+    }
 
-		for (unsigned int dots = 0; dots < heating_status_counter; dots++)
-		{
-			lcd_putc_at(7 + dots, 3, '.');
-		}
-		switch (heating_status)
-		{
-		case 1:
-			lcd_puts_at_P(0, 3, _T(MSG_HEATING));
-			break;
-		case 2:
-			lcd_puts_at_P(0, 3, _T(MSG_HEATING_COMPLETE));
-			heating_status = 0;
-			heating_status_counter = 0;
-			break;
-		case 3:
-			lcd_puts_at_P(0, 3, _T(MSG_BED_HEATING));
-			break;
-		case 4:
-			lcd_puts_at_P(0, 3, _T(MSG_BED_DONE));
-			heating_status = 0;
-			heating_status_counter = 0;
-			break;
-		default:
-			break;
-		}
-	}
-	else if ((IS_SD_PRINTING) && (custom_message_type == CustomMsg::Status))
-	{ // If printing from SD, show what we are printing
-		if(strlen(longFilenameOLD) > LCD_WIDTH)
-		{
-			int inters = 0;
-			int gh = scrollstuff;
-			while (((gh - scrollstuff) < LCD_WIDTH) && (inters == 0))
-			{
-				if (longFilenameOLD[gh] == '\0')
-				{
-					lcd_set_cursor(gh - scrollstuff, 3);
-					lcd_print(longFilenameOLD[gh - 1]);
-					scrollstuff = 0;
-					gh = scrollstuff;
-					inters = 1;
-				}
-				else
-				{
-					lcd_set_cursor(gh - scrollstuff, 3);
-					lcd_print(longFilenameOLD[gh - 1]);
-					gh++;
-				}
-			}
-			scrollstuff++;
-		}
-		else
-		{
-			lcd_printf_P(PSTR("%-20s"), longFilenameOLD);
-		}
-	}
-	else
-	{ // Otherwise check for other special events
-   		switch (custom_message_type)
-		{
-		case CustomMsg::Status: // Nothing special, print status message normally
-			lcd_print(lcd_status_message);
-			break;
-		case CustomMsg::MeshBedLeveling: // If mesh bed leveling in progress, show the status
-			if (custom_message_state > 10)
-			{
-				lcd_set_cursor(0, 3);
-				lcd_space(20);
-				lcd_puts_at_P(0, 3, _T(MSG_CALIBRATE_Z_AUTO));
-				lcd_puts_P(PSTR(" : "));
-				lcd_print(custom_message_state-10);
-			}
-			else
-			{
-				if (custom_message_state == 3)
-				{
-					lcd_puts_P(_T(WELCOME_MSG));
-					lcd_setstatuspgm(_T(WELCOME_MSG));
-					custom_message_type = CustomMsg::Status;
-				}
-				if (custom_message_state > 3 && custom_message_state <= 10 )
-				{
-					lcd_set_cursor(0, 3);
-					lcd_space(19);
-					lcd_puts_at_P(0, 3, _i("Calibration done"));////MSG_HOMEYZ_DONE
-					custom_message_state--;
-				}
-			}
-			break;
-		case CustomMsg::FilamentLoading: // If loading filament, print status
-			lcd_print(lcd_status_message);
-			break;
-		case CustomMsg::PidCal: // PID tuning in progress
-			lcd_print(lcd_status_message);
-			if (pid_cycle <= pid_number_of_cycles && custom_message_state > 0)
-			{
-				lcd_set_cursor(10, 3);
-				lcd_print(itostr3(pid_cycle));
-				lcd_print('/');
-				lcd_print(itostr3left(pid_number_of_cycles));
-			}
-			break;
-		case CustomMsg::TempCal: // PINDA temp calibration in progress
-			{
-				char statusLine[LCD_WIDTH + 1];
-				sprintf_P(statusLine, PSTR("%-20S"), _T(MSG_TEMP_CALIBRATION));
-				char progress[4];
-				sprintf_P(progress, PSTR("%d/6"), custom_message_state);
-				memcpy(statusLine + 12, progress, sizeof(progress) - 1);
-				lcd_set_cursor(0, 3);
-				lcd_print(statusLine);
-			}
-			break;
-		case CustomMsg::TempCompPreheat: // temp compensation preheat
-			lcd_puts_at_P(0, 3, _i("PINDA Heating"));////MSG_PINDA_PREHEAT c=20 r=1
-			if (custom_message_state <= PINDA_HEAT_T)
-			{
-				lcd_puts_P(PSTR(": "));
-				lcd_print(custom_message_state); //seconds
-				lcd_print(' ');
-			}
-			break;
-		}
-	}
-    
     // Fill the rest of line to have nice and clean output
-	for(int fillspace = 0; fillspace < 20; fillspace++)
-		if ((lcd_status_message[fillspace] <= 31 ))
-			lcd_print(' ');
+    for(int fillspace = 0; fillspace < 20; fillspace++)
+        if ((lcd_status_message[fillspace] <= 31 ))
+            lcd_print(' ');
 }
 
 //! @brief Show Status Screen
@@ -1662,8 +1691,8 @@ static void lcd_menu_fails_stats_mmu()
 //! @code{.unparsed}
 //! |01234567890123456789|
 //! |Last print failures |	MSG_LAST_PRINT_FAILURES c=20
-//! | MMU fails:      000|	MSG_MMU_FAILS c=14
-//! | MMU load fails: 000|	MSG_MMU_LOAD_FAILS c=14
+//! | MMU fails       000|	MSG_MMU_FAILS c=15
+//! | MMU load fails  000|	MSG_MMU_LOAD_FAILS c=15
 //! |                    |
 //! ----------------------
 //! @endcode
@@ -1676,8 +1705,8 @@ static void lcd_menu_fails_stats_mmu_print()
     lcd_home();
     lcd_printf_P(PSTR("%S\n" " %-16.16S%-3d\n" " %-16.16S%-3d"), 
         _T(MSG_LAST_PRINT_FAILURES), ////c=20
-        _T(MSG_MMU_FAILS), fails, ////c=14
-        _T(MSG_MMU_LOAD_FAILS), load_fails); ////c=14
+        _T(MSG_MMU_FAILS), fails, ////c=15
+        _T(MSG_MMU_LOAD_FAILS), load_fails); ////c=15
     menu_back_if_clicked_fb();
 }
 
@@ -1686,9 +1715,9 @@ static void lcd_menu_fails_stats_mmu_print()
 //! @code{.unparsed}
 //! |01234567890123456789|
 //! |Total failures      |	MSG_TOTAL_FAILURES c=20
-//! | MMU fails:      000|	MSG_MMU_FAILS c=14
-//! | MMU load fails: 000|	MSG_MMU_LOAD_FAILS c=14
-//! | MMU power fails:000|	c=14 r=1
+//! | MMU fails       000|	MSG_MMU_FAILS c=15
+//! | MMU load fails  000|	MSG_MMU_LOAD_FAILS c=15
+//! | MMU power fails 000|	c=15
 //! ----------------------
 //! @endcode
 //! @todo Positioning of the messages and values on LCD aren't fixed to their exact place. This causes issues with translations.
@@ -1701,9 +1730,9 @@ static void lcd_menu_fails_stats_mmu_total()
     lcd_home();
     lcd_printf_P(PSTR("%S\n" " %-16.16S%-3d\n" " %-16.16S%-3d\n" " %-16.16S%-3d"), 
         _T(MSG_TOTAL_FAILURES), ////c=20
-        _T(MSG_MMU_FAILS), fails, ////c=14
-        _T(MSG_MMU_LOAD_FAILS), load_fails, ////c=14
-        _i("MMU power fails"), mmu_power_failures); ////c=14 r=1
+        _T(MSG_MMU_FAILS), fails, ////c=15
+        _T(MSG_MMU_LOAD_FAILS), load_fails, ////c=15
+        _i("MMU power fails"), mmu_power_failures); ////c=15 r=1
     menu_back_if_clicked_fb();
 }
 
@@ -1715,8 +1744,8 @@ static const char failStatsFmt[] PROGMEM = "%S\n" " %-16.16S%-3d\n" " %-16.16S%-
 //! @code{.unparsed}
 //! |01234567890123456789|
 //! |Total failures      |	MSG_TOTAL_FAILURES c=20
-//! | Power failures: 000|	MSG_POWER_FAILURES c=14
-//! | Fil. runouts  : 000|	MSG_FIL_RUNOUTS c=14
+//! | Power failures  000|	MSG_POWER_FAILURES c=15
+//! | Fil. runouts    000|	MSG_FIL_RUNOUTS c=15
 //! | Crash   X:000 Y:000|	MSG_CRASH c=7
 //! ----------------------
 //! @endcode
@@ -1731,8 +1760,8 @@ static void lcd_menu_fails_stats_total()
     lcd_home();
     lcd_printf_P(failStatsFmt, 
         _T(MSG_TOTAL_FAILURES),   ////c=20
-        _T(MSG_POWER_FAILURES), power,   ////c=14
-        _T(MSG_FIL_RUNOUTS), filam,   ////c=14
+        _T(MSG_POWER_FAILURES), power,   ////c=15
+        _T(MSG_FIL_RUNOUTS), filam,   ////c=15
         _T(MSG_CRASH), crashX, crashY);  ////c=7
     menu_back_if_clicked_fb();
 }
@@ -1742,9 +1771,9 @@ static void lcd_menu_fails_stats_total()
 //! @code{.unparsed}
 //! |01234567890123456789|
 //! |Last print failures |	MSG_LAST_PRINT_FAILURES c=20
-//! | Power failures  000|	MSG_POWER_FAILURES c=14
-//! | Fil. runouts    000|	MSG_FIL_RUNOUTS c=14
-//! | Crash   X:000 Y:000|	MSG_CRASH c=7
+//! | Power failures  000|	MSG_POWER_FAILURES c=15
+//! | Fil. runouts    000|	MSG_FIL_RUNOUTS c=15
+//! | Crash   X 000 Y 000|	MSG_CRASH c=7
 //! ----------------------
 //! @endcode
 //! @todo Positioning of the messages and values on LCD aren't fixed to their exact place. This causes issues with translations.
@@ -1759,8 +1788,8 @@ static void lcd_menu_fails_stats_print()
 #ifndef PAT9125
     lcd_printf_P(failStatsFmt,
         _T(MSG_LAST_PRINT_FAILURES),  ////c=20
-        _T(MSG_POWER_FAILURES), power,  ////c=14
-        _T(MSG_FIL_RUNOUTS), filam,  ////c=14
+        _T(MSG_POWER_FAILURES), power,  ////c=15
+        _T(MSG_FIL_RUNOUTS), filam,  ////c=15
         _T(MSG_CRASH), crashX, crashY);  ////c=7
 #else
     // On the MK3 include detailed PAT9125 statistics about soft failures
@@ -1769,7 +1798,7 @@ static void lcd_menu_fails_stats_print()
                       " %-7.7S H %-3d S %-3d\n"
                       " %-7.7S X %-3d Y %-3d"),
                  _T(MSG_LAST_PRINT_FAILURES), ////c=20
-                 _T(MSG_POWER_FAILURES), power, ////c=14
+                 _T(MSG_POWER_FAILURES), power, ////c=15
                  _i("Runouts"), filam, fsensor_softfail, //c=7
                  _T(MSG_CRASH), crashX, crashY);  ////c=7
 #endif
@@ -1812,9 +1841,9 @@ static const char failStatsFmt[] PROGMEM = "%S\n" " %-16.16S%-3d\n" "%S\n" " %-1
 //! @code{.unparsed}
 //! |01234567890123456789|
 //! |Last print failures |	MSG_LAST_PRINT_FAILURES c=20
-//! | Fil.   runouts  000|	MSG_FIL_RUNOUTS c=14
+//! | Fil. runouts    000|	MSG_FIL_RUNOUTS c=15
 //! |Total failures      |	MSG_TOTAL_FAILURES c=20
-//! | Fil. runouts    000|	MSG_FIL_RUNOUTS c=14
+//! | Fil. runouts    000|	MSG_FIL_RUNOUTS c=15
 //! ----------------------
 //! @endcode
 //! @todo Positioning of the messages and values on LCD aren't fixed to their exact place. This causes issues with translations.
@@ -1826,9 +1855,9 @@ static void lcd_menu_fails_stats()
 	lcd_home();
 	lcd_printf_P(failStatsFmt, 
         _T(MSG_LAST_PRINT_FAILURES),   ////c=20
-        _T(MSG_FIL_RUNOUTS), filamentLast,   ////c=14
+        _T(MSG_FIL_RUNOUTS), filamentLast,   ////c=15
         _T(MSG_TOTAL_FAILURES),  ////c=20
-        _T(MSG_FIL_RUNOUTS), filamentTotal);   ////c=14
+        _T(MSG_FIL_RUNOUTS), filamentTotal);   ////c=15
 
 	menu_back_if_clicked();
 }
@@ -2240,18 +2269,18 @@ uint8_t nLevel;
 
 lcd_set_cursor(0,0);
 lcdui_print_temp(LCD_STR_THERMOMETER[0],(int)degHotend(0),(int)degTargetHotend(0));
-lcd_puts_at_P(0,2, _i("Press the knob"));                 ////MSG_ c=20 r=1
-lcd_set_cursor(0,3);
+lcd_puts_at_P(0,1, _i("Press the knob"));                 ////MSG_ c=20
+lcd_set_cursor(0,2);
 switch(eFilamentAction)
      {
      case FilamentAction::Load:
      case FilamentAction::AutoLoad:
      case FilamentAction::MmuLoad:
-          lcd_puts_P(_i("to load filament"));     ////MSG_ c=20 r=1
+          lcd_puts_P(_i("to load filament"));     ////MSG_ c=20
           break;
      case FilamentAction::UnLoad:
      case FilamentAction::MmuUnLoad:
-          lcd_puts_P(_i("to unload filament"));   ////MSG_ c=20 r=1
+          lcd_puts_P(_i("to unload filament"));   ////MSG_ c=20
           break;
      case FilamentAction::MmuEject:
      case FilamentAction::MmuCut:
@@ -4322,7 +4351,7 @@ static void lcd_sort_type_set() {
 		default: sdSort = SD_SORT_TIME;
 	}
 	eeprom_update_byte((unsigned char *)EEPROM_SD_SORT, sdSort);
-	presort_flag = true;
+	card.presort_flag = true;
 }
 #endif //SDCARD_SORT_ALPHA
 
@@ -5296,16 +5325,13 @@ do\
     else\
         MENU_ITEM_TOGGLE_P(_T(MSG_SD_CARD), _T(MSG_NORMAL), lcd_toshiba_flash_air_compatibility_toggle);\
 \
-    if (!farm_mode)\
+    uint8_t sdSort;\
+    EEPROM_read(EEPROM_SD_SORT, (uint8_t*)&sdSort, sizeof(sdSort));\
+    switch (sdSort)\
     {\
-        uint8_t sdSort;\
-        EEPROM_read(EEPROM_SD_SORT, (uint8_t*)&sdSort, sizeof(sdSort));\
-        switch (sdSort)\
-        {\
-          case SD_SORT_TIME: MENU_ITEM_TOGGLE_P(_T(MSG_SORT), _T(MSG_SORT_TIME), lcd_sort_type_set); break;\
-          case SD_SORT_ALPHA: MENU_ITEM_TOGGLE_P(_T(MSG_SORT), _T(MSG_SORT_ALPHA), lcd_sort_type_set); break;\
-          default: MENU_ITEM_TOGGLE_P(_T(MSG_SORT), _T(MSG_NONE), lcd_sort_type_set);\
-        }\
+      case SD_SORT_TIME: MENU_ITEM_TOGGLE_P(_T(MSG_SORT), _T(MSG_SORT_TIME), lcd_sort_type_set); break;\
+      case SD_SORT_ALPHA: MENU_ITEM_TOGGLE_P(_T(MSG_SORT), _T(MSG_SORT_ALPHA), lcd_sort_type_set); break;\
+      default: MENU_ITEM_TOGGLE_P(_T(MSG_SORT), _T(MSG_NONE), lcd_sort_type_set);\
     }\
 }\
 while (0)
@@ -6095,15 +6121,15 @@ uint8_t choose_menu_P(const char *header, const char *item, const char *last_ite
 char reset_menu() {
     const uint8_t items_no =
 #ifdef SNMM
-        5;
+        6;
 #else
-        4;
+        5;
 #endif
     static int8_t first = 0;
     int8_t enc_dif = 0;
 	char cursor_pos = 0;
 
-    const char *const item[items_no] PROGMEM = {PSTR("Language"), PSTR("Statistics"), PSTR("Shipping prep"), PSTR("All Data")
+    const char *const item[items_no] PROGMEM = {PSTR("Language"), PSTR("Statistics"), PSTR("Shipping prep"), PSTR("All Data"), PSTR("Service prep")
 #ifdef SNMM
     , PSTR("Bowden length")
 #endif
@@ -6490,16 +6516,15 @@ void lcd_resume_print()
     lcd_reset_alert_level(); //for fan speed error
     if (fan_error_selftest()) return; //abort if error persists
         cmdqueue_serial_disabled = false;
-
     lcd_setstatuspgm(_T(MSG_FINISHING_MOVEMENTS));
     st_synchronize();
-
-    lcd_setstatuspgm(_T(MSG_RESUMING_PRINT)); ////MSG_RESUMING_PRINT c=20
+    custom_message_type = CustomMsg::Resuming;
+    isPrintPaused = false;
     restore_print_from_ram_and_continue(default_retraction);
     pause_time += (_millis() - start_pause_print); //accumulate time when print is paused for correct statistics calculation
     refresh_cmd_timeout();
-    isPrintPaused = false;
-    SERIAL_PROTOCOLLNRPGM(MSG_OCTOPRINT_RESUMED); //trigger octoprint to resume print
+    SERIAL_PROTOCOLLNRPGM(MSG_OCTOPRINT_RESUMED); //resume octoprint
+    custom_message_type = CustomMsg::Status;
 }
 
 //! @brief Resume paused USB/host print, send host action "resume"
@@ -7205,8 +7230,8 @@ void lcd_sdcard_menu()
 {
   uint8_t sdSort = eeprom_read_byte((uint8_t*)EEPROM_SD_SORT);
 
-  if (presort_flag == true) {
-	  presort_flag = false;
+  if (card.presort_flag == true) {
+	  card.presort_flag = false;
 	  card.presort();
   }
   if (lcd_draw_update == 0 && LCD_CLICKED == 0)
@@ -8419,7 +8444,7 @@ static int lcd_selftest_screen(TestScreen screen, int _progress, int _progress_s
 	if (screen == TestScreen::EndStops) lcd_puts_P(_i("Checking endstops"));////MSG_SELFTEST_CHECK_ENDSTOPS c=20
 	if (screen == TestScreen::AxisX) lcd_puts_P(_T(MSG_CHECKING_X));
 	if (screen == TestScreen::AxisY) lcd_puts_P(_T(MSG_CHECKING_Y));
-	if (screen == TestScreen::AxisZ) lcd_puts_P(_i("Checking Z axis  "));////MSG_SELFTEST_CHECK_Z c=20
+	if (screen == TestScreen::AxisZ) lcd_puts_P(_i("Checking Z axis"));////MSG_SELFTEST_CHECK_Z c=20
 	if (screen == TestScreen::Bed) lcd_puts_P(_T(MSG_SELFTEST_CHECK_BED));
 	if (screen == TestScreen::Hotend
 	    || screen == TestScreen::HotendOk) lcd_puts_P(_i("Checking hotend  "));////MSG_SELFTEST_CHECK_HOTEND c=20
@@ -8503,7 +8528,7 @@ static void lcd_selftest_screen_step(int _row, int _col, int _state, const char
 
 static bool check_file(const char* filename) {
 	if (farm_mode) return true;
-	card.openFile((char*)filename, true);
+	card.openFileReadFilteredGcode(filename, true);
 	bool result = false;
 	const uint32_t filesize = card.getFileSize();
 	uint32_t startPos = 0;
@@ -8570,7 +8595,7 @@ static void menu_action_sdfile(const char* filename)
 
   for (uint_least8_t i = 0; i < depth; i++) {
 	  for (uint_least8_t j = 0; j < 8; j++) {
-		  eeprom_write_byte((uint8_t*)EEPROM_DIRS + j + 8 * i, dir_names[i][j]);
+		  eeprom_write_byte((uint8_t*)EEPROM_DIRS + j + 8 * i, card.dir_names[i][j]);
 	  }
   }
   
@@ -8588,12 +8613,8 @@ static void menu_action_sdfile(const char* filename)
 
 void menu_action_sddirectory(const char* filename)
 {
-	uint8_t depth = (uint8_t)card.getWorkDirDepth();
-
-	strcpy(dir_names[depth], filename);
-	MYSERIAL.println(dir_names[depth]);
-  card.chdir(filename);
-  lcd_encoder = 0;
+	card.chdir(filename, true);
+	lcd_encoder = 0;
 }
 
 /** LCD API **/

Firmware/ultralcd.h

@@ -115,12 +115,15 @@ extern int8_t FSensorStateMenu;
 
 enum class CustomMsg : uint_least8_t
 {
-	Status,          //!< status message from lcd_status_message variable
-	MeshBedLeveling, //!< Mesh bed leveling in progress
-	FilamentLoading, //!< Loading filament in progress
-	PidCal,          //!< PID tuning in progress
-	TempCal,         //!< PINDA temperature calibration
-	TempCompPreheat, //!< Temperature compensation preheat
+    Status,          //!< status message from lcd_status_message variable
+    MeshBedLeveling, //!< Mesh bed leveling in progress
+    FilamentLoading, //!< Loading filament in progress
+    PidCal,          //!< PID tuning in progress
+    TempCal,         //!< PINDA temperature calibration
+    TempCompPreheat, //!< Temperature compensation preheat
+    M0Wait,          //!< M0/M1 Wait command working even from SD
+    MsgUpdate,       //!< Short message even while printing from SD
+    Resuming,       //!< Resuming message
 };
 
 extern CustomMsg custom_message_type;

Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h

@@ -90,8 +90,9 @@ AXIS SETTINGS
 #define DEFAULT_MAX_ACCELERATION      {9000,9000,500,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
 #define DEFAULT_MAX_ACCELERATION_SILENT     {960, 960, 200, 5000}    // (mm/sec^2) max acceleration (M201), silent mode
 
-#define DEFAULT_ACCELERATION          1500    // X, Y, Z and E max acceleration in mm/s^2 for printing moves
+#define DEFAULT_ACCELERATION          1500   // X, Y, Z and E max acceleration in mm/s^2 for printing moves
 #define DEFAULT_RETRACT_ACCELERATION  1500   // X, Y, Z and E max acceleration in mm/s^2 for retracts
+#define DEFAULT_TRAVEL_ACCELERATION   1500   // X, Y, Z and E max acceleration in mm/s^2 for travels
 
 
 #define MANUAL_FEEDRATE {3000, 3000, 1000, 100}   // set the speeds for manual moves (mm/min)

Firmware/variants/1_75mm_MK2-RAMBo13a-E3Dv6full.h

@@ -90,8 +90,9 @@ AXIS SETTINGS
 #define DEFAULT_MAX_ACCELERATION      {9000,9000,500,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
 #define DEFAULT_MAX_ACCELERATION_SILENT     {960, 960, 200, 5000}    // (mm/sec^2) max acceleration (M201), silent mode
 
-#define DEFAULT_ACCELERATION          1500    // X, Y, Z and E max acceleration in mm/s^2 for printing moves
+#define DEFAULT_ACCELERATION          1500   // X, Y, Z and E max acceleration in mm/s^2 for printing moves
 #define DEFAULT_RETRACT_ACCELERATION  1500   // X, Y, Z and E max acceleration in mm/s^2 for retracts
+#define DEFAULT_TRAVEL_ACCELERATION   1500   // X, Y, Z and E max acceleration in mm/s^2 for travels
 
 
 #define MANUAL_FEEDRATE {3000, 3000, 1000, 100}   // set the speeds for manual moves (mm/min)

Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h

@@ -94,8 +94,9 @@
 #define DEFAULT_MAX_ACCELERATION      {1000, 1000, 200, 5000}  // (mm/sec^2) max acceleration (M201)
 #define DEFAULT_MAX_ACCELERATION_SILENT     {960, 960, 200, 5000}    // (mm/sec^2) max acceleration (M201), silent mode
 
-#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204S)
-#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204T)
+#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204P)
+#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204R)
+#define DEFAULT_TRAVEL_ACCELERATION   1250   // X, Y, Z and E max acceleration in mm/s^2 for travels (M204T)
 
 #define MANUAL_FEEDRATE {2700, 2700, 1000, 100}   // set the speeds for manual moves (mm/min)
 

Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h

@@ -95,8 +95,9 @@
 #define DEFAULT_MAX_ACCELERATION_SILENT     {960, 960, 200, 5000}    // (mm/sec^2) max acceleration (M201), silent mode
 
 
-#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204S)
-#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204T)
+#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204P)
+#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204R)
+#define DEFAULT_TRAVEL_ACCELERATION   1250   // X, Y, Z and E max acceleration in mm/s^2 for travels (M204T)
 
 #define MANUAL_FEEDRATE {2700, 2700, 1000, 100}   // set the speeds for manual moves (mm/min)
 

Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h

@@ -94,8 +94,9 @@
 #define DEFAULT_MAX_ACCELERATION      {1000, 1000, 200, 5000}  // (mm/sec^2) max acceleration (M201)
 #define DEFAULT_MAX_ACCELERATION_SILENT     {960, 960, 200, 5000}    // (mm/sec^2) max acceleration (M201), silent mode
 
-#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204S)
-#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204T)
+#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204P)
+#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204R)
+#define DEFAULT_TRAVEL_ACCELERATION   1250   // X, Y, Z and E max acceleration in mm/s^2 for travels (M204T)
 
 #define MANUAL_FEEDRATE {2700, 2700, 1000, 100}   // set the speeds for manual moves (mm/min)
 

Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h

@@ -95,8 +95,9 @@
 #define DEFAULT_MAX_ACCELERATION_SILENT     {960, 960, 200, 5000}    // (mm/sec^2) max acceleration (M201), silent mode
 
 
-#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204S)
-#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204T)
+#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204P)
+#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204R)
+#define DEFAULT_TRAVEL_ACCELERATION   1250   // X, Y, Z and E max acceleration in mm/s^2 for travels (M204T)
 
 #define MANUAL_FEEDRATE {2700, 2700, 1000, 100}   // set the speeds for manual moves (mm/min)
 

Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h

@@ -99,8 +99,9 @@
 #define DEFAULT_MAX_ACCELERATION_SILENT     {960, 960, 200, 5000}    // (mm/sec^2) max acceleration (M201), silent mode
 
 
-#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204S)
-#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204T)
+#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204P)
+#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204R)
+#define DEFAULT_TRAVEL_ACCELERATION   1250   // X, Y, Z and E max acceleration in mm/s^2 for travels (M204T)
 
 #define MANUAL_FEEDRATE {2700, 2700, 1000, 100}   // set the speeds for manual moves (mm/min)
 

Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h

@@ -101,8 +101,9 @@
 #define DEFAULT_MAX_ACCELERATION_SILENT     {960, 960, 200, 5000}    // (mm/sec^2) max acceleration (M201), silent mode
 
 
-#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204S)
-#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204T)
+#define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204P)
+#define DEFAULT_RETRACT_ACCELERATION  1250   // X, Y, Z and E max acceleration in mm/s^2 for retracts (M204R)
+#define DEFAULT_TRAVEL_ACCELERATION   1250   // X, Y, Z and E max acceleration in mm/s^2 for travels (M204T)
 
 #define MANUAL_FEEDRATE {2700, 2700, 1000, 100}   // set the speeds for manual moves (mm/min)
 

lang/lang_en.txt

@@ -253,8 +253,8 @@
 #MSG_FSENSOR
 "Fil. sensor"
 
-#MSG_FIL_RUNOUTS c=14
-"Fil. runouts  "
+#MSG_FIL_RUNOUTS c=15
+"Fil. runouts"
 
 #MSG_FILAMENT_CLEAN c=20 r=2
 "Filament extruding & with correct color?"
@@ -448,13 +448,13 @@
 #
 "Measured skew"
 
-#MSG_MMU_FAILS c=14
+#MSG_MMU_FAILS c=15
 "MMU fails"
 
 #
 "MMU load failed     "
 
-#MSG_MMU_LOAD_FAILS c=14
+#MSG_MMU_LOAD_FAILS c=15
 "MMU load fails"
 
 #MSG_MMU_OK_RESUMING c=20 r=4
@@ -620,12 +620,12 @@
 "Please upgrade."
 
 #MSG_PRESS_TO_PREHEAT c=20 r=4
-"Press knob to preheat nozzle and continue."
+"Press the knob to preheat nozzle and continue."
 
 #MSG_FS_PAUSE c=5
 "Pause"
 
-#MSG_POWER_FAILURES c=14
+#MSG_POWER_FAILURES c=15
 "Power failures"
 
 #MSG_PRINT_ABORTED c=20
@@ -643,7 +643,7 @@
 #MSG_CARD_MENU
 "Print from SD"
 
-#
+# c=20
 "Press the knob"
 
 #MSG_PRINT_PAUSED c=20 r=1
@@ -874,10 +874,10 @@
 #MSG_TOTAL_FAILURES c=20
 "Total failures"
 
-#
+# c=20
 "to load filament"
 
-#
+# c=20
 "to unload filament"
 
 #MSG_UNLOAD_FILAMENT c=17
@@ -1048,7 +1048,7 @@
 #MSG_GCODE_DIFF_PRINTER_CONTINUE c=20 r=5
 "G-code sliced for a different printer type. Continue?"
 
-#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=6
+#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=7
 "G-code sliced for a different printer type. Please re-slice the model again. Print cancelled."
 
 #

lang/lang_en_cz.txt

@@ -338,8 +338,8 @@
 "Fil. sensor"
 "Fil. senzor"
 
-#MSG_FIL_RUNOUTS c=14
-"Fil. runouts  "
+#MSG_FIL_RUNOUTS c=15
+"Fil. runouts"
 "Vypadky filam."
 
 #MSG_FILAMENT_CLEAN c=20 r=2
@@ -598,7 +598,7 @@
 "Measured skew"
 "Merene zkoseni"
 
-#MSG_MMU_FAILS c=14
+#MSG_MMU_FAILS c=15
 "MMU fails"
 "Selhani MMU"
 
@@ -606,7 +606,7 @@
 "MMU load failed     "
 "Zavedeni MMU selhalo"
 
-#MSG_MMU_LOAD_FAILS c=14
+#MSG_MMU_LOAD_FAILS c=15
 "MMU load fails"
 "MMU selhani zavadeni"
 
@@ -827,14 +827,14 @@
 "Prosim aktualizujte."
 
 #MSG_PRESS_TO_PREHEAT c=20 r=4
-"Press knob to preheat nozzle and continue."
+"Press the knob to preheat nozzle and continue."
 "Pro nahrati trysky a pokracovani stisknete tlacitko."
 
 #MSG_FS_PAUSE c=5
 "Pause"
 "\x00"
 
-#MSG_POWER_FAILURES c=14
+#MSG_POWER_FAILURES c=15
 "Power failures"
 "Vypadky proudu"
 
@@ -858,7 +858,7 @@
 "Print from SD"
 "Tisk z SD"
 
-#
+# c=20
 "Press the knob"
 "Stisknete hl. tlacitko"
 
@@ -1166,11 +1166,11 @@
 "Total failures"
 "Celkem selhani"
 
-#
+# c=20
 "to load filament"
 "k zavedeni filamentu"
 
-#
+# c=20
 "to unload filament"
 "k vyjmuti filamentu"
 
@@ -1398,7 +1398,7 @@
 "G-code sliced for a different printer type. Continue?"
 "G-code je pripraven pro jiny typ tiskarny. Pokracovat?"
 
-#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=6
+#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=7
 "G-code sliced for a different printer type. Please re-slice the model again. Print cancelled."
 "G-code je pripraven pro jiny typ tiskarny. Prosim preslicujte model znovu. Tisk zrusen."
 

lang/lang_en_de.txt

@@ -338,9 +338,9 @@
 "Fil. sensor"
 "Fil. Sensor"
 
-#MSG_FIL_RUNOUTS c=14
-"Fil. runouts  "
-"Fil. Maengel  "
+#MSG_FIL_RUNOUTS c=15
+"Fil. runouts"
+"Fil. Maengel"
 
 #MSG_FILAMENT_CLEAN c=20 r=2
 "Filament extruding & with correct color?"
@@ -598,7 +598,7 @@
 "Measured skew"
 "Schraeglauf"
 
-#MSG_MMU_FAILS c=14
+#MSG_MMU_FAILS c=15
 "MMU fails"
 "MMU Fehler"
 
@@ -606,7 +606,7 @@
 "MMU load failed     "
 "MMU Ladefehler"
 
-#MSG_MMU_LOAD_FAILS c=14
+#MSG_MMU_LOAD_FAILS c=15
 "MMU load fails"
 "MMU Ladefehler"
 
@@ -827,14 +827,14 @@
 "Bitte aktualisieren."
 
 #MSG_PRESS_TO_PREHEAT c=20 r=4
-"Press knob to preheat nozzle and continue."
+"Press the knob to preheat nozzle and continue."
 "Bitte druecken Sie den Knopf um die Duese vorzuheizen und fortzufahren."
 
 #MSG_FS_PAUSE c=5
 "Pause"
 "\x00"
 
-#MSG_POWER_FAILURES c=14
+#MSG_POWER_FAILURES c=15
 "Power failures"
 "Netzfehler"
 
@@ -858,7 +858,7 @@
 "Print from SD"
 "Drucken von SD"
 
-#
+# c=20
 "Press the knob"
 "Knopf druecken zum"
 
@@ -1166,11 +1166,11 @@
 "Total failures"
 "Gesamte Fehler"
 
-#
+# c=20
 "to load filament"
 "Filament laden"
 
-#
+# c=20
 "to unload filament"
 "Filament entladen"
 
@@ -1398,7 +1398,7 @@
 "G-code sliced for a different printer type. Continue?"
 "G-Code ist fuer einen anderen Drucker geslict. Fortfahren?"
 
-#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=6
+#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=7
 "G-code sliced for a different printer type. Please re-slice the model again. Print cancelled."
 "G-Code ist fuer einen anderen Drucker geslict. Bitte slicen Sie das Modell erneut. Druck abgebrochen."
 

lang/lang_en_es.txt

@@ -338,9 +338,9 @@
 "Fil. sensor"
 "Sensor Fil."
 
-#MSG_FIL_RUNOUTS c=14
-"Fil. runouts  "
-"Fil. acabado  "
+#MSG_FIL_RUNOUTS c=15
+"Fil. runouts"
+"Fil. acabado"
 
 #MSG_FILAMENT_CLEAN c=20 r=2
 "Filament extruding & with correct color?"
@@ -598,7 +598,7 @@
 "Measured skew"
 "Desviacion med:"
 
-#MSG_MMU_FAILS c=14
+#MSG_MMU_FAILS c=15
 "MMU fails"
 "Fallos MMU"
 
@@ -606,7 +606,7 @@
 "MMU load failed     "
 "Carga MMU fallida"
 
-#MSG_MMU_LOAD_FAILS c=14
+#MSG_MMU_LOAD_FAILS c=15
 "MMU load fails"
 "Carga MMU falla"
 
@@ -827,16 +827,16 @@
 "Actualize por favor"
 
 #MSG_PRESS_TO_PREHEAT c=20 r=4
-"Press knob to preheat nozzle and continue."
+"Press the knob to preheat nozzle and continue."
 "Pulsa el dial para precalentar la boquilla y continue."
 
 #MSG_FS_PAUSE c=5
 "Pause"
 "Pausa"
 
-#MSG_POWER_FAILURES c=14
+#MSG_POWER_FAILURES c=15
 "Power failures"
-"Cortes de energia"
+"Fallas energia"
 
 #MSG_PRINT_ABORTED c=20
 "Print aborted"
@@ -858,7 +858,7 @@
 "Print from SD"
 "Menu tarjeta SD"
 
-#
+# c=20
 "Press the knob"
 "Pulsa el dial"
 
@@ -1166,13 +1166,13 @@
 "Total failures"
 "Fallos totales"
 
-#
+# c=20
 "to load filament"
-"para cargar el filamento"
+"para cargar el fil."
 
-#
+# c=20
 "to unload filament"
-"para descargar el filamento"
+"para descargar fil."
 
 #MSG_UNLOAD_FILAMENT c=17
 "Unload filament"
@@ -1398,7 +1398,7 @@
 "G-code sliced for a different printer type. Continue?"
 "Codigo G laminado para un tipo de impresora diferente. ?Continuar?"
 
-#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=6
+#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=7
 "G-code sliced for a different printer type. Please re-slice the model again. Print cancelled."
 "Codigo G laminado para una impresora diferente. Por favor relamina el modelo de nuevo. Impresion cancelada."
 

lang/lang_en_fr.txt

@@ -338,9 +338,9 @@
 "Fil. sensor"
 "Capteur Fil."
 
-#MSG_FIL_RUNOUTS c=14
-"Fil. runouts  "
-"Fins filament "
+#MSG_FIL_RUNOUTS c=15
+"Fil. runouts"
+"Fins filament"
 
 #MSG_FILAMENT_CLEAN c=20 r=2
 "Filament extruding & with correct color?"
@@ -598,7 +598,7 @@
 "Measured skew"
 "Deviat.mesuree"
 
-#MSG_MMU_FAILS c=14
+#MSG_MMU_FAILS c=15
 "MMU fails"
 "Echecs MMU"
 
@@ -606,7 +606,7 @@
 "MMU load failed     "
 "Echec chargement MMU"
 
-#MSG_MMU_LOAD_FAILS c=14
+#MSG_MMU_LOAD_FAILS c=15
 "MMU load fails"
 "Echecs charg. MMU"
 
@@ -827,14 +827,14 @@
 "Mettez a jour le FW."
 
 #MSG_PRESS_TO_PREHEAT c=20 r=4
-"Press knob to preheat nozzle and continue."
+"Press the knob to preheat nozzle and continue."
 "Appuyez sur le bouton pour prechauffer la buse et continuer."
 
 #MSG_FS_PAUSE c=5
 "Pause"
 "\x00"
 
-#MSG_POWER_FAILURES c=14
+#MSG_POWER_FAILURES c=15
 "Power failures"
 "Coup.de courant"
 
@@ -858,7 +858,7 @@
 "Print from SD"
 "Impr. depuis la SD"
 
-#
+# c=20
 "Press the knob"
 "App. sur sur bouton"
 
@@ -1166,11 +1166,11 @@
 "Total failures"
 "Total des echecs"
 
-#
+# c=20
 "to load filament"
 "pour charger le fil."
 
-#
+# c=20
 "to unload filament"
 "pour decharger fil."
 
@@ -1398,7 +1398,7 @@
 "G-code sliced for a different printer type. Continue?"
 "Le G-code a ete prepare pour une autre version de l'imprimante. Continuer?"
 
-#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=6
+#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=7
 "G-code sliced for a different printer type. Please re-slice the model again. Print cancelled."
 "Le G-code a ete prepare pour une autre version de l'imprimante. Veuillez decouper le modele a nouveau. L'impression a ete annulee."
 

lang/lang_en_it.txt

@@ -338,9 +338,9 @@
 "Fil. sensor"
 "Sensore fil."
 
-#MSG_FIL_RUNOUTS c=14
-"Fil. runouts  "
-"Fil. esauriti "
+#MSG_FIL_RUNOUTS c=15
+"Fil. runouts"
+"Fil. esauriti"
 
 #MSG_FILAMENT_CLEAN c=20 r=2
 "Filament extruding & with correct color?"
@@ -598,7 +598,7 @@
 "Measured skew"
 "Deviazione mis"
 
-#MSG_MMU_FAILS c=14
+#MSG_MMU_FAILS c=15
 "MMU fails"
 "Fallimenti MMU"
 
@@ -606,7 +606,7 @@
 "MMU load failed     "
 "Caricamento MMU fallito"
 
-#MSG_MMU_LOAD_FAILS c=14
+#MSG_MMU_LOAD_FAILS c=15
 "MMU load fails"
 "Caricamenti MMU falliti"
 
@@ -827,14 +827,14 @@
 "Prego aggiornare."
 
 #MSG_PRESS_TO_PREHEAT c=20 r=4
-"Press knob to preheat nozzle and continue."
+"Press the knob to preheat nozzle and continue."
 "Premete la manopola per preriscaldare l'ugello e continuare."
 
 #MSG_FS_PAUSE c=5
 "Pause"
 "Pausa"
 
-#MSG_POWER_FAILURES c=14
+#MSG_POWER_FAILURES c=15
 "Power failures"
 "Mancanza corrente"
 
@@ -858,7 +858,7 @@
 "Print from SD"
 "Stampa da SD"
 
-#
+# c=20
 "Press the knob"
 "Premere la manopola"
 
@@ -1166,13 +1166,13 @@
 "Total failures"
 "Totale fallimenti"
 
-#
+# c=20
 "to load filament"
-"per caricare il filamento"
+"per caricare il fil."
 
-#
+# c=20
 "to unload filament"
-"per scaricare il filamento"
+"per scaricare fil."
 
 #MSG_UNLOAD_FILAMENT c=17
 "Unload filament"
@@ -1398,7 +1398,7 @@
 "G-code sliced for a different printer type. Continue?"
 "G-code processato per una stampante diversa. Continuare?"
 
-#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=6
+#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=7
 "G-code sliced for a different printer type. Please re-slice the model again. Print cancelled."
 "G-code processato per una stampante diversa. Per favore esegui nuovamente lo slice del modello. Stampa annullata."
 

lang/lang_en_pl.txt

@@ -338,8 +338,8 @@
 "Fil. sensor"
 "Czuj. filam."
 
-#MSG_FIL_RUNOUTS c=14
-"Fil. runouts  "
+#MSG_FIL_RUNOUTS c=15
+"Fil. runouts"
 "Konc.filamentu"
 
 #MSG_FILAMENT_CLEAN c=20 r=2
@@ -598,7 +598,7 @@
 "Measured skew"
 "Zmierzony skos"
 
-#MSG_MMU_FAILS c=14
+#MSG_MMU_FAILS c=15
 "MMU fails"
 "Bledy MMU"
 
@@ -606,7 +606,7 @@
 "MMU load failed     "
 "Blad ladowania MMU"
 
-#MSG_MMU_LOAD_FAILS c=14
+#MSG_MMU_LOAD_FAILS c=15
 "MMU load fails"
 "Bledy ladow. MMU"
 
@@ -827,14 +827,14 @@
 "Prosze zaktualizowac."
 
 #MSG_PRESS_TO_PREHEAT c=20 r=4
-"Press knob to preheat nozzle and continue."
+"Press the knob to preheat nozzle and continue."
 "Wcisnij pokretlo aby rozgrzac dysze i kontynuowac."
 
 #MSG_FS_PAUSE c=5
 "Pause"
 "Pauza"
 
-#MSG_POWER_FAILURES c=14
+#MSG_POWER_FAILURES c=15
 "Power failures"
 "Zaniki zasilania"
 
@@ -858,7 +858,7 @@
 "Print from SD"
 "Druk z karty SD"
 
-#
+# c=20
 "Press the knob"
 "Wcisnij pokretlo"
 
@@ -1166,11 +1166,11 @@
 "Total failures"
 "Suma bledow"
 
-#
+# c=20
 "to load filament"
 "aby zaladow. fil."
 
-#
+# c=20
 "to unload filament"
 "aby rozlad. filament"
 
@@ -1398,7 +1398,7 @@
 "G-code sliced for a different printer type. Continue?"
 "G-code pociety dla innej drukarki. Kontynuowac?"
 
-#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=6
+#MSG_GCODE_DIFF_PRINTER_CANCELLED c=20 r=7
 "G-code sliced for a different printer type. Please re-slice the model again. Print cancelled."
 "G-code pociety dla drukarki innego typu. Potnij model ponownie. Druk anulowany."