Option to Auto-Initialize EEPROM (#13935)

Marlin/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

Marlin/src/Marlin.cpp

@@ -955,7 +955,15 @@ void setup() {
 
   // Load data from EEPROM if available (or use defaults)
   // This also updates variables in the planner, elsewhere
-  (void)settings.load();
+  #if ENABLED(EEPROM_AUTO_INIT)
+    if (!settings.load()) {
+      (void)settings.reset();
+      (void)settings.save();
+      SERIAL_ECHO_MSG("EEPROM Initialized");
+    }
+  #else
+    (void)settings.load();
+  #endif
 
   #if HAS_M206_COMMAND
     // Initialize current position based on home_offset

Marlin/src/module/configuration_store.cpp

@@ -401,9 +401,8 @@ void MarlinSettings::postprocess() {
     report_current_position();
 }
 
-#if ENABLED(PRINTCOUNTER) && ENABLED(EEPROM_SETTINGS)
+#if BOTH(PRINTCOUNTER, EEPROM_SETTINGS)
   #include "printcounter.h"
-
   static_assert(
     !WITHIN(STATS_EEPROM_ADDRESS, EEPROM_OFFSET, EEPROM_OFFSET + sizeof(SettingsData)) &&
     !WITHIN(STATS_EEPROM_ADDRESS + sizeof(printStatistics), EEPROM_OFFSET, EEPROM_OFFSET + sizeof(SettingsData)),

config/default/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/3DFabXYZ/Migbot/Configuration.h

@@ -1370,17 +1370,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/AlephObjects/TAZ4/Configuration.h

@@ -1384,17 +1384,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/AliExpress/CL-260/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/AliExpress/UM2pExt/Configuration.h

@@ -1375,17 +1375,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Anet/A2/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Anet/A2plus/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Anet/A6/Configuration.h

@@ -1516,17 +1516,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Anet/A8/Configuration.h

@@ -1377,17 +1377,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/AnyCubic/i3/Configuration.h

@@ -1374,17 +1374,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/ArmEd/Configuration.h

@@ -1365,17 +1365,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Azteeg/X5GT/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/BIBO/TouchX/cyclops/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/BIBO/TouchX/default/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/BQ/Hephestos/Configuration.h

@@ -1352,17 +1352,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/BQ/Hephestos_2/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/BQ/WITBOX/Configuration.h

@@ -1352,17 +1352,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Cartesio/Configuration.h

@@ -1363,17 +1363,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Creality/CR-10/Configuration.h

@@ -1374,17 +1374,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Creality/CR-10S/Configuration.h

@@ -1365,17 +1365,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Creality/CR-10_5S/Configuration.h

@@ -1367,17 +1367,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Creality/CR-10mini/Configuration.h

@@ -1383,17 +1383,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Creality/CR-8/Configuration.h

@@ -1374,17 +1374,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Creality/Ender-2/Configuration.h

@@ -1368,17 +1368,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Creality/Ender-3/Configuration.h

@@ -1368,17 +1368,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Creality/Ender-4/Configuration.h

@@ -1374,17 +1374,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Einstart-S/Configuration.h

@@ -1372,17 +1372,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Felix/Configuration.h

@@ -1346,17 +1346,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Felix/DUAL/Configuration.h

@@ -1346,17 +1346,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/FlashForge/CreatorPro/Configuration.h

@@ -1355,17 +1355,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/FolgerTech/i3-2020/Configuration.h

@@ -1370,17 +1370,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Formbot/Raptor/Configuration.h

@@ -1469,17 +1469,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Formbot/T_Rex_2+/Configuration.h

@@ -1399,17 +1399,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Formbot/T_Rex_3/Configuration.h

@@ -1389,17 +1389,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Geeetech/A10M/Configuration.h

@@ -1349,17 +1349,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Geeetech/A20M/Configuration.h

@@ -1349,17 +1349,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Geeetech/GT2560/Configuration.h

@@ -1379,17 +1379,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Geeetech/I3_Pro_X-GT2560/Configuration.h

@@ -1353,17 +1353,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Geeetech/MeCreator2/Configuration.h

@@ -1371,17 +1371,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h

@@ -1384,17 +1384,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+#define DISABLE_M503          // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h

@@ -1384,17 +1384,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+#define DISABLE_M503          // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Geeetech/Prusa i3 Pro C/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Geeetech/Prusa i3 Pro W/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Infitary/i3-M508/Configuration.h

@@ -1368,17 +1368,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/JGAurora/A5/Configuration.h

@@ -1376,17 +1376,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+#define DISABLE_M503          // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/MakerParts/Configuration.h

@@ -1384,17 +1384,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Malyan/M150/Configuration.h

@@ -1392,17 +1392,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Malyan/M200/Configuration.h

@@ -1363,17 +1363,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Micromake/C1/basic/Configuration.h

@@ -1368,17 +1368,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Micromake/C1/enhanced/Configuration.h

@@ -1368,17 +1368,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Mks/Robin/Configuration.h

@@ -1365,17 +1365,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Mks/Sbase/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-//#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+//#define EEPROM_CHITCHAT     // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Printrbot/PrintrboardG2/Configuration.h

@@ -1372,17 +1372,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/RapideLite/RL200/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/RepRapPro/Huxley/Configuration.h

@@ -1413,17 +1413,21 @@ Black rubber belt(MXL), 18 - tooth aluminium pulley : 87.489 step per mm (Huxley
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/RepRapWorld/Megatronics/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/RigidBot/Configuration.h

@@ -1362,17 +1362,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/SCARA/Configuration.h

@@ -1377,17 +1377,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/STM32/Black_STM32F407VET6/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/STM32/STM32F10/Configuration.h

@@ -1366,17 +1366,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-//#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+//#define EEPROM_CHITCHAT     // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/STM32/STM32F4/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/STM32/stm32f103ret6/Configuration.h

@@ -1366,17 +1366,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-//#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+//#define EEPROM_CHITCHAT     // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Sanguinololu/Configuration.h

@@ -1395,17 +1395,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/TheBorg/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/TinyBoy2/Configuration.h

@@ -1420,17 +1420,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Tronxy/X1/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Tronxy/X3A/Configuration.h

@@ -1368,17 +1368,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-//#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+//#define EEPROM_CHITCHAT     // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Tronxy/X5S-2E/Configuration.h

@@ -1385,17 +1385,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Tronxy/X5S/Configuration.h

@@ -1363,17 +1363,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Tronxy/XY100/Configuration.h

@@ -1375,17 +1375,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/UltiMachine/Archim1/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/UltiMachine/Archim2/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/VORONDesign/Configuration.h

@@ -1373,17 +1373,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Velleman/K8200/Configuration.h

@@ -1394,17 +1394,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Velleman/K8400/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Velleman/K8400/Dual-head/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/WASP/PowerWASP/Configuration.h

@@ -1383,17 +1383,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/Wanhao/Duplicator 6/Configuration.h

@@ -1374,17 +1374,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/adafruit/ST7565/Configuration.h

@@ -1364,17 +1364,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/Anycubic/Kossel/Configuration.h

@@ -1551,17 +1551,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/FLSUN/auto_calibrate/Configuration.h

@@ -1492,17 +1492,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/FLSUN/kossel/Configuration.h

@@ -1491,17 +1491,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/FLSUN/kossel_mini/Configuration.h

@@ -1491,17 +1491,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/Geeetech/Rostock 301/Configuration.h

@@ -1479,17 +1479,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/Hatchbox_Alpha/Configuration.h

@@ -1494,17 +1494,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/MKS/SBASE/Configuration.h

@@ -1479,17 +1479,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/Tevo Little Monster/Configuration.h

@@ -1472,17 +1472,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/generic/Configuration.h

@@ -1479,17 +1479,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/kossel_mini/Configuration.h

@@ -1481,17 +1481,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/kossel_pro/Configuration.h

@@ -1482,17 +1482,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/delta/kossel_xl/Configuration.h

@@ -1482,17 +1482,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/gCreate/gMax1.5+/Configuration.h

@@ -1367,17 +1367,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/makibox/Configuration.h

@@ -1367,17 +1367,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/tvrrug/Round2/Configuration.h

@@ -1359,17 +1359,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-//#define EEPROM_SETTINGS // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+//#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive

config/examples/wt150/Configuration.h

@@ -1369,17 +1369,21 @@
 
 // @section extras
 
-//
-// EEPROM
-//
-// The microcontroller can store settings in the EEPROM, e.g. max velocity...
-// M500 - stores parameters in EEPROM
-// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-//
-#define EEPROM_SETTINGS   // Enable for M500 and M501 commands
-//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
-#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+#endif
 
 //
 // Host Keepalive