Added ability to write configuration on SD

MarlinKimbra/Marlin_main.cpp

@@ -406,7 +406,10 @@ bool target_direction;
 
 #ifdef SDSUPPORT
   static bool fromsd[BUFSIZE];
-#endif //!SDSUPPORT
+  #ifdef SD_SETTINGS
+    unsigned long config_last_update = 0;
+  #endif
+#endif
 
 #ifdef FILAMENTCHANGEENABLE
 	bool filament_changing = false;
@@ -751,6 +754,18 @@ void setup() {
   setup_photpin();
   setup_laserbeampin();   // Initialize Laserbeam pin
   servo_init();
+  #ifdef SDSUPPORT
+    card.initsd();
+  #endif
+  
+  // loads custom configuration from SDCARD if available else uses defaults
+  #ifdef SDSTUPPORT
+    if(!IS_SD_INSERTED) ConfigSD_ResetDefault();
+    else
+  #endif
+  {
+    ConfigSD_RetrieveSettings();
+  }
   
   lcd_init();
   _delay_ms(1000);  // wait 1sec to display the splash screen
@@ -6872,7 +6887,7 @@ void manage_inactivity(bool ignore_stepper_queue/*=false*/) {
         if (!filament_changing)
       #endif
       {
-        if(degHotend(active_extruder) < IDLE_OOZING_MAXTEMP && degTargetHotend(active_extruder) < IDLE_OOZING_MINTEMP) {
+        if(degTargetHotend(active_extruder) < IDLE_OOZING_MINTEMP) {
           IDLE_OOZING_retract(false);
         }
         else if((millis() - axis_last_activity) >  IDLE_OOZING_SECONDS*1000) {
@@ -6882,6 +6897,18 @@ void manage_inactivity(bool ignore_stepper_queue/*=false*/) {
     }
   #endif
   
+  #if defined(SDSUPPORT) && defined(SD_SETTINGS)
+    if(!config_readed) {
+      ConfigSD_RetrieveSettings(true);
+    }
+    else if((millis() - config_last_update) >  SD_CFG_SECONDS*1000) {
+      ConfigSD_StoreSettings();
+    }
+  #endif
+  #ifdef TEMP_STAT_LEDS
+    handle_status_leds();
+  #endif
+
   #ifdef TEMP_STAT_LEDS
     handle_status_leds();
   #endif