Fix missing EEPROM waveform read

Author: JosipKuci

examples/Inkplate10/Diagnostics/Inkplate10_Factory_Programming_VCOM/Inkplate10_Factory_Programming_VCOM.ino

@@ -64,10 +64,11 @@
 // Create object on Inkplate library and set library to work in monochrome mode
 Inkplate display(INKPLATE_1BIT);
 
-// We only store: provision marker + waveform number for UI / reselection.
-// Driver stores the actual VCOM and waveform data internally.
-int EEPROM_PROVISION_MARKER_ADDR = 0; // 170 => provisioned
-int EEPROM_WAVEFORM_NUM_ADDR     = 1; // 1..5
+// Provision marker and waveform number for factory flow.
+// Addresses 0-75 are occupied by the waveformData struct written by setWaveform();
+// the marker and waveform number must live beyond that range to avoid collisions.
+int EEPROM_PROVISION_MARKER_ADDR = 76; // 170 => provisioned
+int EEPROM_WAVEFORM_NUM_ADDR     = 77; // 1..5
 
 // Peripheral mode variables and arrays (kept from original)
 #define BUFFER_SIZE 1000

src/boards/Inkplate10/Inkplate10Driver.cpp

@@ -99,10 +99,21 @@ int EPDDriver::initDriver(Inkplate *_inkplatePtr)
         return 0;
     }
 
+    // Load the 3-bit waveform stored in EEPROM during factory programming before
+    // calculating LUTs, so the LUTs are built from the correct waveform.
+    // Falls back to the compiled-in default if EEPROM data is absent or corrupt.
+    EEPROM.begin(512);
+    struct waveformData waveformEEPROM;
+    if (getWaveformFromEEPROM(&waveformEEPROM) &&
+        waveformEEPROM.waveformId >= INKPLATE10_WAVEFORM1 &&
+        waveformEEPROM.waveformId <= INKPLATE10_WAVEFORM5)
+    {
+        memcpy(waveform3Bit, waveformEEPROM.waveform, sizeof(waveform3Bit));
+    }
+
     // Calculate color LUTs to optimize drawing to the screen
     calculateLUTs();
 
-
     _beginDone = 1;
     return 1;
 }