UBL able to generate mesh and save and load it on 32-bit platforms (#8015)

* Get UBL Mesh Generation, Mesh Save & Mesh Load working with 32-Bit platforms

* clean up read_data() and write_data() for non-LPC1768 HAL's

* Get read_data() and write_data() return codes consistent

All HAL's read_data() and write_data() return false if they succeed.

* Get read_data() and write_data() return codes to be consistent

Make read_data() and write_data() return true if an error happens.

* Say UBL is now checked out on machine types in default Configuration.h file.

Marlin/Configuration.h

@@ -854,12 +854,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/HAL/HAL_AVR/persistent_store_impl.cpp

@@ -28,17 +28,17 @@ bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
       if (eeprom_read_byte(p) != v) {
         SERIAL_ECHO_START();
         SERIAL_ECHOLNPGM(MSG_ERR_EEPROM_WRITE);
-        return false;
+        return true;
       }
     }
     crc16(crc, &v, 1);
     pos++;
     value++;
   };
-  return true;
+  return false;
 }
 
-void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
   do {
     uint8_t c = eeprom_read_byte((unsigned char*)pos);
     *value = c;
@@ -46,6 +46,7 @@ void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
     pos++;
     value++;
   } while (--size);
+  return false;  // always assume success for AVR's
 }
 
 }

Marlin/src/HAL/HAL_DUE/persistent_store_impl.cpp

@@ -28,17 +28,17 @@ bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
       if (eeprom_read_byte(p) != v) {
         SERIAL_ECHO_START();
         SERIAL_ECHOLNPGM(MSG_ERR_EEPROM_WRITE);
-        return false;
+        return true;
       }
     }
     crc16(crc, &v, 1);
     pos++;
     value++;
   };
-  return true;
+  return false;
 }
 
-void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
   do {
     uint8_t c = eeprom_read_byte((unsigned char*)pos);
     *value = c;
@@ -46,6 +46,7 @@ void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
     pos++;
     value++;
   } while (--size);
+  return false;
 }
 
 }

Marlin/src/HAL/HAL_LPC1768/persistent_store_impl.cpp

@@ -34,7 +34,7 @@ bool access_start() {
 
   if (res == FR_OK) {
     f_lseek(&eeprom_file, file_size);
-    while (file_size < E2END && res == FR_OK) {
+    while (file_size <= E2END && res == FR_OK) {
       res = f_write(&eeprom_file, &eeprom_zero, 1, &bytes_written);
       file_size++;
     }
@@ -53,21 +53,92 @@ bool access_finish() {
   return true;
 }
 
+// File function return codes for type FRESULT   This goes away soon.   But it is helpful right now to see
+// the different errors the read_data() and write_data() functions are seeing.
+//
+//typedef enum {
+//      FR_OK = 0,               /* (0) Succeeded */
+//      FR_DISK_ERR,             /* (1) A hard error occurred in the low level disk I/O layer */
+//      FR_INT_ERR,              /* (2) Assertion failed */
+//      FR_NOT_READY,            /* (3) The physical drive cannot work */
+//      FR_NO_FILE,              /* (4) Could not find the file */
+//      FR_NO_PATH,              /* (5) Could not find the path */
+//      FR_INVALID_NAME,         /* (6) The path name format is invalid */
+//      FR_DENIED,               /* (7) Access denied due to prohibited access or directory full */
+//      FR_EXIST,                /* (8) Access denied due to prohibited access */
+//      FR_INVALID_OBJECT,       /* (9) The file/directory object is invalid */
+//      FR_WRITE_PROTECTED,      /* (10) The physical drive is write protected */
+//      FR_INVALID_DRIVE,        /* (11) The logical drive number is invalid */
+//      FR_NOT_ENABLED,          /* (12) The volume has no work area */
+//      FR_NO_FILESYSTEM,        /* (13) There is no valid FAT volume */
+//      FR_MKFS_ABORTED,         /* (14) The f_mkfs() aborted due to any problem */
+//      FR_TIMEOUT,              /* (15) Could not get a grant to access the volume within defined period */
+//      FR_LOCKED,               /* (16) The operation is rejected according to the file sharing policy */
+//      FR_NOT_ENOUGH_CORE,      /* (17) LFN working buffer could not be allocated */
+//      FR_TOO_MANY_OPEN_FILES,  /* (18) Number of open files > FF_FS_LOCK */
+//      FR_INVALID_PARAMETER     /* (19) Given parameter is invalid */
+//} FRESULT;
+
 bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
+  FRESULT s;
   UINT bytes_written = 0;
-  f_lseek(&eeprom_file, pos);
+  s = f_lseek(&eeprom_file, pos);
-  f_write(&eeprom_file, (void *)value, size, &bytes_written);
+  if ( s ) {
+   SERIAL_PROTOCOLPAIR(" write_data(", pos);         // This extra chit-chat goes away soon.  But it is helpful
+   SERIAL_PROTOCOLPAIR(",", (int) value);            // right now to see errors that are happening in the 
+   SERIAL_PROTOCOLPAIR(",", (int) size);             // read_data() and write_data() functions
+   SERIAL_PROTOCOL("...)\n");
+   SERIAL_PROTOCOLPAIR(" f_lseek()=", (int) s);
+   SERIAL_PROTOCOL("\n");
+   return s;
+  }
+  s = f_write(&eeprom_file, (void *)value, size, &bytes_written);
+  if ( s ) {
+   SERIAL_PROTOCOLPAIR(" write_data(", pos);         // This extra chit-chat goes away soon.  But it is helpful
+   SERIAL_PROTOCOLPAIR(",", (int) value);            // right now to see errors that are happening in the 
+   SERIAL_PROTOCOLPAIR(",", (int) size);             // read_data() and write_data() functions
+   SERIAL_PROTOCOL("...)\n");
+   SERIAL_PROTOCOLPAIR(" f_write()=", (int) s);
+   SERIAL_PROTOCOL("\n");
+   SERIAL_PROTOCOLPAIR(" size=",  (int) size);
+   SERIAL_PROTOCOLPAIR("\n bytes_written=",  (int) bytes_written);
+   SERIAL_PROTOCOL("\n");
+   return s;
+  }
   crc16(crc, value, size);
   pos = pos + size;
-  return (bytes_written == size);
+  return (bytes_written != size);  // return true for any error
 }
 
-void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
   UINT bytes_read = 0;
-  f_lseek(&eeprom_file, pos);
+  FRESULT s;
-  f_read(&eeprom_file, (void *)value, size, &bytes_read);
+  s = f_lseek(&eeprom_file, pos);
+  if ( s ) {
+   SERIAL_PROTOCOLPAIR(" read_data(", pos);          // This extra chit-chat goes away soon.  But it is helpful
+   SERIAL_PROTOCOLPAIR(",", (int) value);            // right now to see errors that are happening in the 
+   SERIAL_PROTOCOLPAIR(",", (int) size);             // read_data() and write_data() functions
+   SERIAL_PROTOCOL("...)\n");
+   SERIAL_PROTOCOLPAIR(" f_lseek()=", (int) s);
+   SERIAL_PROTOCOL("\n");
+   return true;
+  }
+  s = f_read(&eeprom_file, (void *)value, size, &bytes_read);
+  if ( s ) {
+   SERIAL_PROTOCOLPAIR(" read_data(", pos);         // This extra chit-chat goes away soon.  But it is helpful
+   SERIAL_PROTOCOLPAIR(",", (int) value);           // right now to see errors that are happening in the 
+   SERIAL_PROTOCOLPAIR(",", (int) size);            // read_data() and write_data() functions
+   SERIAL_PROTOCOL("...)\n");
+   SERIAL_PROTOCOLPAIR(" f_write()=", (int) s);
+   SERIAL_PROTOCOL("\n");
+   SERIAL_PROTOCOLPAIR(" size=",  (int) size);
+   SERIAL_PROTOCOLPAIR("\n bytes_read=",  (int) bytes_read);
+   SERIAL_PROTOCOL("\n");
+   return true;
+  }
   crc16(crc, value, size);
   pos = pos + size;
+  return bytes_read != size;  // return true for any error
 }
 
 } // PersistentStore

Marlin/src/HAL/HAL_STM32F1/persistent_store_impl.cpp

@@ -78,15 +78,16 @@ bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
 	}
 	crc16(crc, value, size);
 	pos += size;
-	return true;
+	return false;
 }
 
-void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
 	for (int i = 0; i < size; i++) {
 		value[i] = HAL_STM32F1_eeprom_content [pos + i];
 	}
 	crc16(crc, value, size);
 	pos += size;
+        return false;
 }
 
 } // PersistentStore::

Marlin/src/HAL/HAL_TEENSY35_36/persistent_store_impl.cpp

@@ -28,17 +28,17 @@ bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
       if (eeprom_read_byte(p) != v) {
         SERIAL_ECHO_START();
         SERIAL_ECHOLNPGM(MSG_ERR_EEPROM_WRITE);
-        return false;
+        return true;
       }
     }
     crc16(crc, &v, 1);
     pos++;
     value++;
   };
-  return true;
+  return false;
 }
 
-void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
   do {
     uint8_t c = eeprom_read_byte((unsigned char*)pos);
     *value = c;
@@ -46,6 +46,7 @@ void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
     pos++;
     value++;
   } while (--size);
+  return false;
 }
 
 } // PersistentStore

Marlin/src/HAL/persistent_store_api.h

@@ -10,7 +10,7 @@ namespace PersistentStore {
 bool access_start();
 bool access_finish();
 bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc);
-void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc);
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc);
 
 } // PersistentStore
 } // HAL

Marlin/src/config/default/Configuration.h

@@ -854,12 +854,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration.h

@@ -874,12 +874,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -854,12 +854,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Anet/A6/Configuration.h

@@ -973,12 +973,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Anet/A8/Configuration.h

@@ -860,12 +860,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/BQ/Hephestos/Configuration.h

@@ -845,12 +845,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/BQ/Hephestos_2/Configuration.h

@@ -855,12 +855,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/BQ/WITBOX/Configuration.h

@@ -845,12 +845,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Cartesio/Configuration.h

@@ -853,12 +853,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -864,12 +864,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Felix/Configuration.h

@@ -836,12 +836,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Felix/DUAL/Configuration.h

@@ -836,12 +836,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Folger Tech/i3-2020/Configuration.h

@@ -634,7 +634,7 @@
  * Z Servo Probe, such as an endstop switch on a rotating arm.
  */
 #define Z_ENDSTOP_SERVO_NR 0   // Defaults to SERVO 0 connector.
-#define Z_SERVO_ANGLES {40,85}  // Z Servo Deploy and Stow angles
+#define Z_SERVO_ANGLES {40,95}  // Z Servo Deploy and Stow angles
 
 /**
  * The BLTouch probe uses a Hall effect sensor and emulates a servo.
@@ -851,12 +851,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Geeetech/GT2560/Configuration.h

@@ -869,12 +869,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -854,12 +854,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -858,12 +858,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Malyan/M150/Configuration.h

@@ -878,12 +878,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -853,12 +853,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -853,12 +853,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Mks/Sbase/Configuration.h

@@ -856,12 +856,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/RepRapWorld/Megatronics/Configuration.h

@@ -854,12 +854,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/RigidBot/Configuration.h

@@ -852,12 +852,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/SCARA/Configuration.h

@@ -866,12 +866,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Sanguinololu/Configuration.h

@@ -885,12 +885,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/TinyBoy2/Configuration.h

@@ -910,12 +910,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Velleman/K8200/Configuration.h

@@ -884,12 +884,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/Velleman/K8400/Configuration.h

@@ -854,12 +854,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -854,12 +854,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/adafruit/ST7565/Configuration.h

@@ -854,12 +854,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -978,12 +978,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -978,12 +978,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/delta/generic/Configuration.h

@@ -965,12 +965,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/delta/kossel_mini/Configuration.h

@@ -968,12 +968,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/delta/kossel_pro/Configuration.h

@@ -968,12 +968,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/delta/kossel_xl/Configuration.h

@@ -977,12 +977,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

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

@@ -868,12 +868,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/makibox/Configuration.h

@@ -857,12 +857,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems. 
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/stm32f103ret6/Configuration.h

@@ -841,12 +841,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/tvrrug/Round2/Configuration.h

@@ -849,12 +849,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/config/examples/wt150/Configuration.h

@@ -859,12 +859,7 @@
  * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
  *   A comprehensive bed leveling system combining the features and benefits
  *   of other systems. UBL also includes integrated Mesh Generation, Mesh
- *   Validation and Mesh Editing systems. Currently, UBL is only checked out
+ *   Validation and Mesh Editing systems.
- *   for Cartesian Printers. That said, it was primarily designed to correct
- *   poor quality Delta Printers. If you feel adventurous and have a Delta,
- *   please post an issue if something doesn't work correctly. Initially,
- *   you will need to set a reduced bed size so you have a rectangular area
- *   to test on.
  *
  * - MESH_BED_LEVELING
  *   Probe a grid manually

Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp

@@ -668,7 +668,7 @@
     }
 
     if (parser.seen('T'))
-      display_map(parser.has_value() ? parser.value_int() : 0);
+      display_map(g29_map_type);
 
     LEAVE:
 

Marlin/src/module/configuration_store.cpp

@@ -632,12 +632,12 @@ void MarlinSettings::postprocess() {
         SERIAL_ECHOLNPGM(")");
       #endif
     }
+    EEPROM_FINISH();
 
     #if ENABLED(UBL_SAVE_ACTIVE_ON_M500)
       if (ubl.storage_slot >= 0)
         store_mesh(ubl.storage_slot);
     #endif
-    EEPROM_FINISH();
     return !eeprom_error;
   }
 
@@ -1073,14 +1073,21 @@ void MarlinSettings::postprocess() {
         }
 
         uint16_t crc = 0;
+        bool status;
         int pos = meshes_end - (slot + 1) * sizeof(ubl.z_values);
 
-        HAL::PersistentStore::write_data(pos, (uint8_t *)&ubl.z_values, sizeof(ubl.z_values), &crc);
+        HAL::PersistentStore::access_start();
+        status = HAL::PersistentStore::write_data(pos, (uint8_t *)&ubl.z_values, sizeof(ubl.z_values), &crc);
+        HAL::PersistentStore::access_finish();
+
+        if (status)
+          SERIAL_PROTOCOL("?Unable to save mesh data.\n");
 
         // Write crc to MAT along with other data, or just tack on to the beginning or end
 
         #if ENABLED(EEPROM_CHITCHAT)
-          SERIAL_PROTOCOLLNPAIR("Mesh saved in slot ", slot);
+          if (!status)
+            SERIAL_PROTOCOLLNPAIR("Mesh saved in slot ", slot);
         #endif
 
       #else
@@ -1106,13 +1113,20 @@ void MarlinSettings::postprocess() {
         uint16_t crc = 0;
         int pos = meshes_end - (slot + 1) * sizeof(ubl.z_values);
         uint8_t * const dest = into ? (uint8_t*)into : (uint8_t*)&ubl.z_values;
-        HAL::PersistentStore::read_data(pos, dest, sizeof(ubl.z_values), &crc);
+        uint16_t status;
 
-        // Compare crc with crc from MAT, or read from end
+        HAL::PersistentStore::access_start();
+        status = HAL::PersistentStore::read_data(pos, dest, sizeof(ubl.z_values), &crc);
+        HAL::PersistentStore::access_finish();
+
+        if (status)
+          SERIAL_PROTOCOL("?Unable to load mesh data.\n");
 
         #if ENABLED(EEPROM_CHITCHAT)
-          SERIAL_PROTOCOLLNPAIR("Mesh loaded from slot ", slot);
+          else
+            SERIAL_PROTOCOLLNPAIR("Mesh loaded from slot ", slot);
         #endif
+        EEPROM_FINISH();
 
       #else