diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/Makefile b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/Makefile
index b8e111ffa..4f210dc2a 100755
--- a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/Makefile
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/Makefile
@@ -5,7 +5,7 @@
 
 # Compiler options here.
 ifeq ($(USE_OPT),)
-  USE_OPT = -Og -ggdb -fomit-frame-pointer -falign-functions=16
+  USE_OPT = -O0 -ggdb -fomit-frame-pointer -falign-functions=16
 endif
 
 # C specific options here (added to USE_OPT).
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/tsconf.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/tsconf.h
index 67fd306a4..19da5590c 100644
--- a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/tsconf.h
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/tsconf.h
@@ -34,7 +34,7 @@
 /* Module pre-compile time settings.                                         */
 /*===========================================================================*/
 #define NSEC_MEMORY_START_ADDR    ((uint8_t *)0x20000000)
-#define NSEC_MEMORY_EXE_OFFSET    ((uint32_t) 0x01000000)
+#define NSEC_MEMORY_EXE_OFFSET    ((uint32_t) 0x00000000)
 #define NSEC_MEMORY_END_ADDR      ((uint8_t *)0x27000000)
 #define SEC_MEMORY_START_ADDR     ((uint8_t *)0x27000000)
 #define SEC_MEMORY_SIZE           ((size_t)0x1000000)