diff --git a/BaseTools/Source/Python/Workspace/DscBuildData.py b/BaseTools/Source/Python/Workspace/DscBuildData.py
index 1fd1639ab6..e45beb3924 100644
--- a/BaseTools/Source/Python/Workspace/DscBuildData.py
+++ b/BaseTools/Source/Python/Workspace/DscBuildData.py
@@ -2017,10 +2017,9 @@ class DscBuildData(PlatformBuildClassObject):
                     #
                     # Use memcpy() to copy value into field
                     #
-                    CApp = CApp + '  FieldSize = __FIELD_SIZE(%s, %s);\n' % (Pcd.DatumType, FieldName)
+                    CApp = CApp + '  FieldSize = __FIELD_SIZE(%s, %s);\n' % (Pcd.BaseDatumType, FieldName)
                     CApp = CApp + '  Value     = %s; // From %s Line %d Value %s\n' % (DscBuildData.IntToCString(Value, ValueSize), FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
-                    CApp = CApp + '  __STATIC_ASSERT((__FIELD_SIZE(%s, %s) >= %d) || (__FIELD_SIZE(%s, %s) == 0), "Input buffer exceeds the buffer array"); // From %s Line %d Value %s\n' % (Pcd.DatumType, FieldName, ValueSize, Pcd.DatumType, FieldName, FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
-                    CApp = CApp + '  memcpy (&Pcd->%s, Value, (FieldSize > 0 && FieldSize < %d) ? FieldSize : %d);\n' % (FieldName, ValueSize, ValueSize)
+                    CApp = CApp + '  __STATIC_ASSERT((__FIELD_SIZE(%s, %s) >= %d) || (__FIELD_SIZE(%s, %s) == 0), "Input buffer exceeds the buffer array"); // From %s Line %d Value %s\n' % (Pcd.BaseDatumType, FieldName, ValueSize, Pcd.BaseDatumType, FieldName, FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
                     CApp = CApp + '  memcpy (&%s, Value, (FieldSize > 0 && FieldSize < %d) ? FieldSize : %d);\n' % (indicator, ValueSize, ValueSize)
                 elif isinstance(Value, str):
                     CApp = CApp + '  %s = %s; // From %s Line %d Value %s\n' % (indicator, Value, FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
@@ -2132,8 +2131,7 @@ class DscBuildData(PlatformBuildClassObject):
                     #
                         CApp = CApp + '  FieldSize = __FIELD_SIZE(%s, %s);\n' % (Pcd.BaseDatumType, FieldName)
                         CApp = CApp + '  Value     = %s; // From %s Line %d Value %s\n' % (DscBuildData.IntToCString(Value, ValueSize), FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
-                        CApp = CApp + '  __STATIC_ASSERT((__FIELD_SIZE(%s, %s) >= %d) || (__FIELD_SIZE(%s, %s) == 0), "Input buffer exceeds the buffer array"); // From %s Line %d Value %s\n' % (Pcd.DatumType, FieldName, ValueSize, Pcd.DatumType, FieldName, FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
-                        CApp = CApp + '  memcpy (&Pcd->%s, Value, (FieldSize > 0 && FieldSize < %d) ? FieldSize : %d);\n' % (FieldName, ValueSize, ValueSize)
+                        CApp = CApp + '  __STATIC_ASSERT((__FIELD_SIZE(%s, %s) >= %d) || (__FIELD_SIZE(%s, %s) == 0), "Input buffer exceeds the buffer array"); // From %s Line %d Value %s\n' % (Pcd.BaseDatumType, FieldName, ValueSize, Pcd.BaseDatumType, FieldName, FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
                         CApp = CApp + '  memcpy (&%s, Value, (FieldSize > 0 && FieldSize < %d) ? FieldSize : %d);\n' % (indicator, ValueSize, ValueSize)
                     else:
                         if '[' in FieldName and ']' in FieldName:
@@ -2202,7 +2200,7 @@ class DscBuildData(PlatformBuildClassObject):
                 #
                     CApp = CApp + '  FieldSize = __FIELD_SIZE(%s, %s);\n' % (Pcd.BaseDatumType, FieldName)
                     CApp = CApp + '  Value     = %s; // From %s Line %d Value %s\n' % (DscBuildData.IntToCString(Value, ValueSize), FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
-                    CApp = CApp + '  __STATIC_ASSERT((__FIELD_SIZE(%s, %s) >= %d) || (__FIELD_SIZE(%s, %s) == 0), "Input buffer exceeds the buffer array"); // From %s Line %d Value %s\n' % (Pcd.DatumType, FieldName, ValueSize, Pcd.DatumType, FieldName, FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
+                    CApp = CApp + '  __STATIC_ASSERT((__FIELD_SIZE(%s, %s) >= %d) || (__FIELD_SIZE(%s, %s) == 0), "Input buffer exceeds the buffer array"); // From %s Line %d Value %s\n' % (Pcd.BaseDatumType, FieldName, ValueSize, Pcd.BaseDatumType, FieldName, FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
                     CApp = CApp + '  memcpy (&Pcd->%s, Value, (FieldSize > 0 && FieldSize < %d) ? FieldSize : %d);\n' % (FieldName, ValueSize, ValueSize)
                 else:
                     if '[' in FieldName and ']' in FieldName:
@@ -2270,7 +2268,7 @@ class DscBuildData(PlatformBuildClassObject):
                 #
                     CApp = CApp + '  FieldSize = __FIELD_SIZE(%s, %s);\n' % (Pcd.BaseDatumType, FieldName)
                     CApp = CApp + '  Value     = %s; // From %s Line %d Value %s\n' % (DscBuildData.IntToCString(Value, ValueSize), FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
-                    CApp = CApp + '  __STATIC_ASSERT((__FIELD_SIZE(%s, %s) >= %d) || (__FIELD_SIZE(%s, %s) == 0), "Input buffer exceeds the buffer array"); // From %s Line %d Value %s\n' % (Pcd.DatumType, FieldName, ValueSize, Pcd.DatumType, FieldName, FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
+                    CApp = CApp + '  __STATIC_ASSERT((__FIELD_SIZE(%s, %s) >= %d) || (__FIELD_SIZE(%s, %s) == 0), "Input buffer exceeds the buffer array"); // From %s Line %d Value %s\n' % (Pcd.BaseDatumType, FieldName, ValueSize, Pcd.BaseDatumType, FieldName, FieldList[FieldName][1], FieldList[FieldName][2], FieldList[FieldName][0])
                     CApp = CApp + '  memcpy (&Pcd->%s, Value, (FieldSize > 0 && FieldSize < %d) ? FieldSize : %d);\n' % (FieldName, ValueSize, ValueSize)
                 else:
                     if '[' in FieldName and ']' in FieldName: