show power failures in fail stats menu, shorter load to nozzle if idler sensor detected

Firmware/mmu.cpp

@@ -57,6 +57,8 @@ int16_t mmu_buildnr = -1;
 uint32_t mmu_last_request = 0;
 uint32_t mmu_last_response = 0;
 
+uint16_t mmu_power_failures = 0;
+
 
 //clear rx buffer
 void mmu_clr_rx_buf(void)
@@ -283,6 +285,14 @@ void mmu_loop(void)
 				mmu_puts_P(PSTR("R0\n")); //send recover after eject
 				mmu_state = 3; // wait for response
 			}
+			else if (mmu_cmd == MMU_CMD_S3)
+			{
+#ifdef MMU_DEBUG
+				printf_P(PSTR("MMU <= 'S3'\n"));
+#endif //MMU_DEBUG
+				mmu_puts_P(PSTR("S3\n")); //send power failures request
+				mmu_state = 4; // power failures response
+			}
 			mmu_cmd = 0;
 		}
 		else if ((mmu_last_response + 300) < millis()) //request every 300ms
@@ -348,6 +358,15 @@ void mmu_loop(void)
 			mmu_state = 1;
 		}
 		return;
+	case 4:
+		if (mmu_rx_ok() > 0)
+		{
+			fscanf_P(uart2io, PSTR("%d"), &mmu_power_failures); //scan finda from buffer
+		}
+		else if ((mmu_last_request + MMU_CMD_TIMEOUT) < millis())
+		{ //resend request after timeout (5 min)
+			mmu_state = 1;
+		}
 	}
 }
 
@@ -610,11 +629,11 @@ void mmu_load_to_nozzle()
 	if (!saved_e_relative_mode) axis_relative_modes[E_AXIS] = true;
 	if (mmu_idler_sensor_detected)
 	{
-		current_position[E_AXIS] += 3f;
+		current_position[E_AXIS] += 3.0f;
 	}
 	else
 	{
-		current_position[E_AXIS] + 7.2f;
+		current_position[E_AXIS] += 7.2f;
 	}
     float feedrate = 562;
 	plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], feedrate / 60, active_extruder);

Firmware/mmu.h

@@ -16,6 +16,8 @@ extern bool mmu_idler_sensor_detected;
 extern int16_t mmu_version;
 extern int16_t mmu_buildnr;
 
+extern uint16_t mmu_power_failures;
+
 #define MMU_FILAMENT_UNKNOWN 255
 
 #define MMU_NO_MOVE 0
@@ -45,7 +47,7 @@ extern int16_t mmu_buildnr;
 #define MMU_CMD_E3   0x53
 #define MMU_CMD_E4   0x54
 #define MMU_CMD_R0   0x60
-
+#define MMU_CMD_S3	 0x73
 
 extern int mmu_puts_P(const char* str);
 

Firmware/ultralcd.cpp

@@ -1960,11 +1960,12 @@ static void lcd_menu_fails_stats_mmu_total()
 // MMU load fails  000
 //
 //////////////////////
+	mmu_command(MMU_CMD_S3);
 	lcd_timeoutToStatus.stop(); //infinite timeout
     uint8_t fails = eeprom_read_byte((uint8_t*)EEPROM_MMU_FAIL_TOT);
     uint16_t load_fails = eeprom_read_byte((uint8_t*)EEPROM_MMU_LOAD_FAIL_TOT);
 //	lcd_printf_P(PSTR(ESC_H(0,0) "Last print failures" ESC_H(1,1) "Power failures  %-3d" ESC_H(1,2) "Filam. runouts  %-3d" ESC_H(1,3) "Crash  X %-3d  Y %-3d"), power, filam, crashX, crashY);
-	lcd_printf_P(PSTR(ESC_H(0,0) "%S" ESC_H(1,1) "%S  %-3d" ESC_H(1,2) "%S  %-3d" ESC_H(1,3)), _i("Total failures"), _i("MMU fails"), fails, _i("MMU load fails"), load_fails);
+	lcd_printf_P(PSTR(ESC_H(0,0) "%S" ESC_H(1,1) "%S  %-3d" ESC_H(1,2) "%S  %-3d" ESC_H(1,3) "%S %-3d"), _i("Total failures"), _i("MMU fails"), fails, _i("MMU load fails"), load_fails, _i("MMU power fails"), mmu_power_failures);
 	menu_back_if_clicked_fb();
 }