diff --git a/driver/src/hw3/inc/hw_mem_map.h b/driver/src/hw3/inc/hw_mem_map.h
index 7447c87..36a683d 100644
--- a/driver/src/hw3/inc/hw_mem_map.h
+++ b/driver/src/hw3/inc/hw_mem_map.h
@@ -103,11 +103,11 @@ extern unsigned int _heap_start;
 #define MEM_MAP_PART_3_ADDR                 (0x80000000)
 #define MEM_MAP_PART_3_LENTH                (0x10000)
 #define MEM_MAP_PART_COUNT                  (4)
-#define MEM_MAP_INTERNAL_RAM_PART_INDEX     (3)
-#define MEM_MAP_GROUP   {MEM_MAP_PART_1_ADDR, MEM_MAP_PART_1_LENTH, \
+#define MEM_MAP_INTERNAL_RAM_PART_INDEX     (0)
+#define MEM_MAP_GROUP   {MEM_MAP_PART_0_ADDR, MEM_MAP_PART_0_LENTH, \
+                         MEM_MAP_PART_1_ADDR, MEM_MAP_PART_1_LENTH, \
                          MEM_MAP_PART_2_ADDR, MEM_MAP_PART_2_LENTH, \
-                         MEM_MAP_PART_3_ADDR, MEM_MAP_PART_3_LENTH, \
-                         MEM_MAP_PART_0_ADDR, MEM_MAP_PART_0_LENTH}
+                         MEM_MAP_PART_3_ADDR, MEM_MAP_PART_3_LENTH}
 
 #else /* (BUILD_AMP_TYPE == IOT_BUILD_AMP_NONE) */