uvlo initial version

Firmware/Configuration.h

@@ -47,6 +47,8 @@
 #define EEPROM_TEMP_CAL_ACTIVE (EEPROM_PROBE_TEMP_SHIFT - 1)
 #define EEPROM_BOWDEN_LENGTH (EEPROM_TEMP_CAL_ACTIVE - 2*4) //4 x int for bowden lengths for multimaterial
 #define EEPROM_CALIBRATION_STATUS_PINDA (EEPROM_BOWDEN_LENGTH - 1) //0 - not calibrated; 1 - calibrated
+#define EEPROM_UVLO						(EEPROM_CALIBRATION_STATUS_PINDA - 1) //1 - uvlo during print
+#define EEPROM_UVLO_CURRENT_POSITION	(EEPROM_UVLO-2*4) // 2 x float for current_position in X and Y axes
 
 // Currently running firmware, each digit stored as uint16_t.
 // The flavor differentiates a dev, alpha, beta, release candidate or a release version.

Firmware/Marlin.h

@@ -351,4 +351,8 @@ float temp_comp_interpolation(float temperature);
 void temp_compensation_apply();
 void temp_compensation_start();
 void wait_for_heater(long codenum);
-void serialecho_temperatures();
+void serialecho_temperatures();
+
+void uvlo();
+void recover_print();
+#define UVLO !(PINE & (1<<4))

Firmware/Marlin_main.cpp

@@ -1197,6 +1197,9 @@ void setup()
 	if (eeprom_read_byte((uint8_t*)EEPROM_CALIBRATION_STATUS_PINDA) == 255) {
 		eeprom_write_byte((uint8_t*)EEPROM_CALIBRATION_STATUS_PINDA, 0);
 	}
+	if (eeprom_read_byte((uint8_t*)EEPROM_UVLO) == 255) {
+		eeprom_write_byte((uint8_t*)EEPROM_UVLO, 0);
+	}
 
 	check_babystep(); //checking if Z babystep is in allowed range
 	
@@ -1217,12 +1220,18 @@ void setup()
       // Show the message.
       lcd_show_fullscreen_message_and_wait_P(MSG_FOLLOW_CALIBRATION_FLOW);
   }
+  if (eeprom_read_byte((uint8_t*)EEPROM_UVLO) == 1) { //previous print was terminated by UVLO
+	  if (lcd_show_fullscreen_message_yes_no_and_wait_P(MSG_RECOVER_PRINT))	recover_print();
+  }
+
   for (int i = 0; i<4; i++) EEPROM_read_B(EEPROM_BOWDEN_LENGTH + i * 2, &bowden_length[i]);
   lcd_update_enable(true);
 
   // Store the currently running firmware into an eeprom,
   // so the next time the firmware gets updated, it will know from which version it has been updated.
   update_current_firmware_version_to_eeprom();
+
+  
 }
 
 void trace();
@@ -6618,4 +6627,42 @@ void serialecho_temperatures() {
 	SERIAL_PROTOCOLPGM(" B:");
 	SERIAL_PROTOCOL_F(degBed(), 1);
 	SERIAL_PROTOCOLLN("");
-}
+}
+
+
+
+void uvlo() {
+	eeprom_update_byte((uint8_t*)EEPROM_UVLO, 1);
+	eeprom_update_float((float*)(EEPROM_UVLO_CURRENT_POSITION + 0), current_position[X_AXIS]);
+	eeprom_update_float((float*)(EEPROM_UVLO_CURRENT_POSITION + 4), current_position[Y_AXIS]);
+	//current_position[Z_AXIS] += 3;
+
+
+
+	/*
+	st_synchronize();
+	while (1);*/
+	//WRITE(BEEPER, HIGH);
+
+	/*while (1) {
+		//first turn off heatbed
+		//DDRG |= (1 << DDG5); //set as output
+		PORTG &= ~(1 << 5); //set output low
+							//turn off nozzle
+							//DDRE |= (1 << DDE5);
+		PORTE &= ~(1 << 5);
+		WRITE(BEEPER, HIGH);
+	}*/
+}
+
+void recover_print() {
+	homeaxis(X_AXIS);
+	homeaxis(Y_AXIS);
+	current_position[X_AXIS] = eeprom_read_float((float*)(EEPROM_BED_CALIBRATION_CENTER + 0));
+	current_position[Y_AXIS] = eeprom_read_float((float*)(EEPROM_BED_CALIBRATION_CENTER + 4));
+	plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], homing_feedrate[X_AXIS], active_extruder);
+	st_synchronize();
+	eeprom_update_byte((uint8_t*)EEPROM_UVLO, 0);
+
+}
+

Firmware/language_all.cpp

@@ -2203,6 +2203,11 @@ const char * const MSG_REBOOT_LANG_TABLE[LANG_NUM] PROGMEM = {
 	MSG_REBOOT_DE
 };
 
+const char MSG_RECOVER_PRINT_EN[] PROGMEM = "Blackout occured. Recover print?";
+const char * const MSG_RECOVER_PRINT_LANG_TABLE[1] PROGMEM = {
+	MSG_RECOVER_PRINT_EN
+};
+
 const char MSG_RECTRACT_EN[] PROGMEM = "Rectract";
 const char * const MSG_RECTRACT_LANG_TABLE[1] PROGMEM = {
 	MSG_RECTRACT_EN

Firmware/language_all.h

@@ -414,6 +414,8 @@ extern const char* const MSG_PRUSA3D_HOWTO_LANG_TABLE[LANG_NUM];
 #define MSG_PRUSA3D_HOWTO LANG_TABLE_SELECT(MSG_PRUSA3D_HOWTO_LANG_TABLE)
 extern const char* const MSG_REBOOT_LANG_TABLE[LANG_NUM];
 #define MSG_REBOOT LANG_TABLE_SELECT(MSG_REBOOT_LANG_TABLE)
+extern const char* const MSG_RECOVER_PRINT_LANG_TABLE[1];
+#define MSG_RECOVER_PRINT LANG_TABLE_SELECT_EXPLICIT(MSG_RECOVER_PRINT_LANG_TABLE, 0)
 extern const char* const MSG_RECTRACT_LANG_TABLE[1];
 #define MSG_RECTRACT LANG_TABLE_SELECT_EXPLICIT(MSG_RECTRACT_LANG_TABLE, 0)
 extern const char* const MSG_REFRESH_LANG_TABLE[1];

Firmware/language_en.h

@@ -302,4 +302,4 @@
 #define(length=17, lines=1) MSG_EXTRUDER_2						"Extruder 2"
 #define(length=17, lines=1) MSG_EXTRUDER_3						"Extruder 3"
 #define(length=17, lines=1) MSG_EXTRUDER_4						"Extruder 4"
-
+#define(length=20, lines=2) MSG_RECOVER_PRINT					"Blackout occured. Recover print?"

Firmware/pins.h

@@ -399,8 +399,9 @@
 
 #define BEEPER      84  // Beeper on AUX-4
 #define LCD_PINS_RS     82
-#define LCD_PINS_ENABLE 18
-#define LCD_PINS_D4     19
+
+#define LCD_PINS_ENABLE 61
+#define LCD_PINS_D4		59
 #define LCD_PINS_D5     70
 #define LCD_PINS_D6     85
 #define LCD_PINS_D7     71
@@ -412,7 +413,7 @@
 
 #define SDCARDDETECT   15
 
-#define TACH_0 81
+#define TACH_0 79
 #define TACH_1 80 
 
 #endif //NEWPANEL

Firmware/stepper.cpp

@@ -333,6 +333,7 @@ FORCE_INLINE void trapezoid_generator_reset() {
 // It pops blocks from the block_buffer and executes them by pulsing the stepper pins appropriately.
 ISR(TIMER1_COMPA_vect)
 {
+	if (UVLO) uvlo();
   // If there is no current block, attempt to pop one from the buffer
   if (current_block == NULL) {
     // Anything in the buffer?

Firmware/temperature.cpp

@@ -407,6 +407,9 @@ void setExtruderAutoFanState(int pin, bool state)
 
 void countFanSpeed()
 {
+	SERIAL_ECHOPGM("UVLO:");
+	MYSERIAL.println(UVLO);
+
 	fan_speed[0] = (fan_edge_counter[0] * (float(250) / (millis() - extruder_autofan_last_check)));
 	fan_speed[1] = (fan_edge_counter[1] * (float(250) / (millis() - extruder_autofan_last_check)));
 
@@ -1456,6 +1459,7 @@ int read_max6675()
 // Timer 0 is shared with millies
 ISR(TIMER0_COMPB_vect)
 {
+	if (UVLO) uvlo();
   //these variables are only accesible from the ISR, but static, so they don't lose their value
   static unsigned char temp_count = 0;
   static unsigned long raw_temp_0_value = 0;