1 files changed, 104 insertions, 0 deletions
diff --git a/Marlin/src/gcode/eeprom/M500-M504.cpp b/Marlin/src/gcode/eeprom/M500-M504.cpp
new file mode 100644
index 0000000..26c50a6
--- /dev/null
+++ b/Marlin/src/gcode/eeprom/M500-M504.cpp
@@ -0,0 +1,104 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../gcode.h"
+#include "../../module/settings.h"
+#include "../../core/serial.h"
+#include "../../inc/MarlinConfig.h"
+
+/**
+ * M500: Store settings in EEPROM
+ */
+void GcodeSuite::M500() {
+  (void)settings.save();
+}
+
+/**
+ * M501: Read settings from EEPROM
+ */
+void GcodeSuite::M501() {
+  (void)settings.load();
+}
+
+/**
+ * M502: Revert to default settings
+ */
+void GcodeSuite::M502() {
+  (void)settings.reset();
+}
+
+#if DISABLED(DISABLE_M503)
+
+  /**
+   * M503: print settings currently in memory
+   */
+  void GcodeSuite::M503() {
+    (void)settings.report(!parser.boolval('S', true));
+  }
+
+#endif // !DISABLE_M503
+
+#if ENABLED(EEPROM_SETTINGS)
+
+  #if ENABLED(MARLIN_DEV_MODE)
+    #include "../../libs/hex_print.h"
+  #endif
+
+  /**
+   * M504: Validate EEPROM Contents
+   */
+  void GcodeSuite::M504() {
+    #if ENABLED(MARLIN_DEV_MODE)
+      const bool dowrite = parser.seenval('W');
+      if (dowrite || parser.seenval('R')) {
+        uint8_t val = 0;
+        int addr = parser.value_ushort();
+        if (dowrite) {
+          val = parser.byteval('V');
+          persistentStore.write_data(addr, &val);
+          SERIAL_ECHOLNPAIR("Wrote address ", addr, " with ", int(val));
+        }
+        else {
+          if (parser.seenval('T')) {
+            const int endaddr = parser.value_ushort();
+            while (addr <= endaddr) {
+              persistentStore.read_data(addr, &val);
+              SERIAL_ECHOLNPAIR("0x", hex_word(addr), ":", hex_byte(val));
+              addr++;
+              safe_delay(10);
+            }
+            SERIAL_EOL();
+          }
+          else {
+            persistentStore.read_data(addr, &val);
+            SERIAL_ECHOLNPAIR("Read address ", addr, " and got ", int(val));
+          }
+        }
+        return;
+      }
+    #endif
+
+    if (settings.validate())
+      SERIAL_ECHO_MSG("EEPROM OK");
+  }
+
+#endif