Update commit NR and FW version

Firmware/Configuration.h

@@ -16,8 +16,8 @@ extern uint16_t nPrinterType;
 extern PGM_P sPrinterName;
 
 // Firmware version
-#define FW_VERSION "3.9.0"
-#define FW_COMMIT_NR 3421
+#define FW_VERSION "3.9.1-BETA"
+#define FW_COMMIT_NR 3476
 // FW_VERSION_UNKNOWN means this is an unofficial build.
 // The firmware should only be checked into github with this symbol.
 #define FW_DEV_VERSION FW_VERSION_UNKNOWN
@@ -70,7 +70,7 @@ extern PGM_P sPrinterName;
 //#define STRING_VERSION "1.0.2"
 
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
-#define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
+#define STRING_CONFIG_H_AUTHOR "(FW390+PR2784+PR2785)" // Who made the changes.
 
 // SERIAL_PORT selects which serial port should be used for communication with the host.
 // This allows the connection of wireless adapters (for instance) to non-default port pins.

Firmware/Marlin_main.cpp

@@ -8570,7 +8570,7 @@ Sigma_Exit:
 	break;
 
     /*!
-	### M999 - Restart after being stopped <a href="https://reprap.org/wiki/G-code#M999:_Restart_after_being_stopped_by_error">M999: Restart after being stopped by error</a>
+    ### M999 - Restart after being stopped <a href="https://reprap.org/wiki/G-code#M999:_Restart_after_being_stopped_by_error">M999: Restart after being stopped by error</a>
     @todo Usually doesn't work. Should be fixed or removed. Most of the time, if `Stopped` it set, the print fails and is unrecoverable.
     */
     case 999:

Firmware/eeprom.h

@@ -359,6 +359,8 @@ static_assert(sizeof(Sheets) == EEPROM_SHEETS_SIZEOF, "Sizeof(Sheets) is not EEP
 | ^					| ^			| ^										| 00h 0			| ^						| LCD backlight mode: __Dim__						| ^				| ^
 | 0x0D30 3376		| uint16	| EEPROM_BACKLIGHT_TIMEOUT				| 01 00 - ff ff | 0a 00h 65535			| LCD backlight timeout: __10__ seconds				| LCD menu		| D3 Ax0d30 C2
 | 0x0D2C 3372		| float		| EEPROM_UVLO_LA_K						| ???			| ff ff ff ffh			| Power panic saved Linear Advanced K value			| ???			| D3 Ax0d2c C4
+| 0x0D2B 3371		| uint8		| EEPROM_ALTFAN_OVERRIDE				| 0-1			| 00h					| ALTFAN override									| LCD menu		| D3 Ax0d2b C1
+| 0x0D2A 3370		| uint8		| EEPROM_EXPERIMENTAL_VISIBILITY		| 0-1			| 00h					| Experimental menu visibility						| LCD menu		| D3 Ax0d2a C1
 
   
 | Address begin		| Bit/Type 	| Name 									| Valid values	| Default/FactoryReset	| Description 										| Gcode/Function| Debug code
@@ -561,8 +563,11 @@ static Sheets * const EEPROM_Sheets_base = (Sheets*)(EEPROM_SHEETS_BASE);
 
 #define EEPROM_UVLO_LA_K (EEPROM_BACKLIGHT_TIMEOUT-4) // float
 
+#define EEPROM_ALTFAN_OVERRIDE (EEPROM_UVLO_LA_K-1) //uint8
+#define EEPROM_EXPERIMENTAL_VISIBILITY (EEPROM_ALTFAN_OVERRIDE-1) //uint8
+
 //This is supposed to point to last item to allow EEPROM overrun check. Please update when adding new items.
-#define EEPROM_LAST_ITEM EEPROM_UVLO_LA_K
+#define EEPROM_LAST_ITEM EEPROM_EXPERIMENTAL_VISIBILITY
 // !!!!!
 // !!!!! this is end of EEPROM section ... all updates MUST BE inserted before this mark !!!!!
 // !!!!!

Firmware/temperature.cpp

@@ -153,6 +153,7 @@ uint8_t fanSpeedBckp = 255;
   uint8_t fanState = 0;
 #ifdef EXTRUDER_ALTFAN_DETECT
   bool extruderFanIsAltfan = false; //set to Noctua
+  uint8_t altfanOverride = 0;
 #endif //EXTRUDER_ALTFAN_DETECT
 #endif
 
@@ -224,6 +225,14 @@ bool extruder_altfan_detect()
 	setExtruderAutoFanState(3);
 
 	SET_INPUT(TACH_0);
+
+	altfanOverride = eeprom_read_byte((uint8_t *)EEPROM_ALTFAN_OVERRIDE);
+	if (altfanOverride == EEPROM_EMPTY_VALUE)
+	{
+		altfanOverride = 0;
+		eeprom_update_byte((uint8_t *)EEPROM_ALTFAN_OVERRIDE, altfanOverride);
+	}
+
 	CRITICAL_SECTION_START;
 	EICRB &= ~(1 << ISC61);
 	EICRB |= (1 << ISC60);
@@ -241,6 +250,18 @@ bool extruder_altfan_detect()
 	setExtruderAutoFanState(1);
 	return extruderFanIsAltfan;
 }
+
+void altfanOverride_toggle()
+{
+    altfanOverride = !altfanOverride;
+    eeprom_update_byte((uint8_t *)EEPROM_ALTFAN_OVERRIDE, altfanOverride);
+}
+
+bool altfanOverride_get()
+{
+    return altfanOverride;
+}
+
 #endif //EXTRUDER_ALTFAN_DETECT
 
 // return "false", if all extruder-heaters are 'off' (ie. "true", if any heater is 'on')
@@ -494,7 +515,7 @@ void setExtruderAutoFanState(uint8_t state)
 	if (fanState & 0x01)
 	{
 #ifdef EXTRUDER_ALTFAN_DETECT
-		if (extruderFanIsAltfan) newFanSpeed = EXTRUDER_ALTFAN_SPEED_SILENT;
+		if (extruderFanIsAltfan && !altfanOverride) newFanSpeed = EXTRUDER_ALTFAN_SPEED_SILENT;
 		else newFanSpeed = EXTRUDER_AUTO_FAN_SPEED;
 #else //EXTRUDER_ALTFAN_DETECT
 		newFanSpeed = EXTRUDER_AUTO_FAN_SPEED;
@@ -1356,7 +1377,7 @@ void temp_runaway_stop(bool isPreheat, bool isBed)
 		SERIAL_ERROR_START;
 		isBed ? SERIAL_ERRORLNPGM(" THERMAL RUNAWAY ( PREHEAT HEATBED)") : SERIAL_ERRORLNPGM(" THERMAL RUNAWAY ( PREHEAT HOTEND)");
 #ifdef EXTRUDER_ALTFAN_DETECT
-		extruderFanIsAltfan = false; //full speed
+		altfanOverride = true; //full speed
 #endif //EXTRUDER_ALTFAN_DETECT
 		setExtruderAutoFanState(3);
 		SET_OUTPUT(FAN_PIN);
@@ -1446,7 +1467,7 @@ void max_temp_error(uint8_t e) {
     WRITE(FAN_PIN, 1);
     WRITE(BEEPER, 1);
 #ifdef EXTRUDER_ALTFAN_DETECT
-    extruderFanIsAltfan = false; //full speed
+    altfanOverride = true; //full speed
 #endif //EXTRUDER_ALTFAN_DETECT
     setExtruderAutoFanState(3);
     // fanSpeed will consumed by the check_axes_activity() routine.

Firmware/temperature.h

@@ -273,6 +273,8 @@ void check_max_temp();
 
 #ifdef EXTRUDER_ALTFAN_DETECT
   extern bool extruder_altfan_detect();
+  extern void altfanOverride_toggle();
+  extern bool altfanOverride_get();
 #endif //EXTRUDER_ALTFAN_DETECT
 
 extern unsigned long extruder_autofan_last_check;

Firmware/ultralcd.cpp

@@ -2096,6 +2096,9 @@ static void lcd_preheat_menu()
 //! 	@code{.unparsed}
 //! 	| Voltages           |	MSG_MENU_VOLTAGES
 //! 	@endcode
+//!
+//!
+//! 	| Experimental       |	c=18 r=1
 //! 
 //! 
 //! If DEBUG_BUILD is defined
@@ -2108,11 +2111,12 @@ static void lcd_preheat_menu()
 static void lcd_support_menu()
 {
 	typedef struct
-	{	// 22bytes total
+	{	// 23bytes total
 		int8_t status;                 // 1byte
 		bool is_flash_air;             // 1byte
 		uint8_t ip[4];                 // 4bytes
 		char ip_str[3*4+3+1];          // 16bytes
+        uint8_t experimental_menu_visibility; //1byte
 	} _menu_data_t;
     static_assert(sizeof(menu_data)>= sizeof(_menu_data_t),"_menu_data_t doesn't fit into menu_data");
 	_menu_data_t* _md = (_menu_data_t*)&(menu_data[0]);
@@ -2126,6 +2130,14 @@ static void lcd_support_menu()
             sprintf_P(_md->ip_str, PSTR("%d.%d.%d.%d"), 
                 _md->ip[0], _md->ip[1], 
                 _md->ip[2], _md->ip[3]);
+        
+        _md->experimental_menu_visibility = eeprom_read_byte((uint8_t *)EEPROM_EXPERIMENTAL_VISIBILITY);
+        if (_md->experimental_menu_visibility == EEPROM_EMPTY_VALUE)
+        {
+            _md->experimental_menu_visibility = 0;
+            eeprom_update_byte((uint8_t *)EEPROM_EXPERIMENTAL_VISIBILITY, _md->experimental_menu_visibility);
+        }
+        
     } else if (_md->is_flash_air && 
         _md->ip[0] == 0 && _md->ip[1] == 0 && 
         _md->ip[2] == 0 && _md->ip[3] == 0 &&
@@ -2210,6 +2222,12 @@ static void lcd_support_menu()
   MENU_ITEM_SUBMENU_P(_i("Voltages"), lcd_menu_voltages);////MSG_MENU_VOLTAGES c=18 r=1
 #endif //defined VOLT_BED_PIN || defined VOLT_PWR_PIN
 
+  if (_md->experimental_menu_visibility)
+  {
+    MENU_ITEM_SUBMENU_P(PSTR("Experimental"), lcd_experimental_menu);
+  }
+
+
 #ifdef DEBUG_BUILD
   MENU_ITEM_SUBMENU_P(PSTR("Debug"), lcd_menu_debug);////c=18 r=1
 #endif /* DEBUG_BUILD */
@@ -8997,6 +9015,13 @@ void menu_lcd_longpress_func(void)
         lcd_quick_feedback();
         return;
     }
+    if (menu_menu == lcd_hw_setup_menu)
+    {
+        // only toggle the experimental menu visibility flag
+        lcd_quick_feedback();
+        lcd_experimental_toggle();
+        return;
+    }
 
     // explicitely listed menus which are allowed to rise the move-z or live-adj-z functions
     // The lists are not the same for both functions, so first decide which function is to be performed
@@ -9160,3 +9185,25 @@ void lcd_crash_detect_disable()
     eeprom_update_byte((uint8_t*)EEPROM_CRASH_DET, 0x00);
 }
 #endif
+
+void lcd_experimental_toggle()
+{
+    uint8_t oldVal = eeprom_read_byte((uint8_t *)EEPROM_EXPERIMENTAL_VISIBILITY);
+    if (oldVal == EEPROM_EMPTY_VALUE)
+        oldVal = 0;
+    else
+        oldVal = !oldVal;
+    eeprom_update_byte((uint8_t *)EEPROM_EXPERIMENTAL_VISIBILITY, oldVal);
+}
+
+void lcd_experimental_menu()
+{
+    MENU_BEGIN();
+    MENU_ITEM_BACK_P(_T(MSG_BACK));
+
+#ifdef EXTRUDER_ALTFAN_DETECT
+    MENU_ITEM_TOGGLE_P(_N("ALTFAN det."), altfanOverride_get()?_T(MSG_OFF):_T(MSG_ON), altfanOverride_toggle);
+#endif //EXTRUDER_ALTFAN_DETECT
+
+    MENU_END();
+}

Firmware/ultralcd.h

@@ -257,4 +257,7 @@ enum class WizState : uint8_t
 
 void lcd_wizard(WizState state);
 
+extern void lcd_experimental_toggle();
+extern void lcd_experimental_menu();
+
 #endif //ULTRALCD_H