Index: firmware/source/sys_startup.c
===================================================================
diff -u -r626d9aabbab7db936cc0b2df47417db3692305d1 -r6623684ddacf5beebd15bce8a1dbd06a442fb38e
--- firmware/source/sys_startup.c	(.../sys_startup.c)	(revision 626d9aabbab7db936cc0b2df47417db3692305d1)
+++ firmware/source/sys_startup.c	(.../sys_startup.c)	(revision 6623684ddacf5beebd15bce8a1dbd06a442fb38e)
@@ -64,11 +64,11 @@
 
 #include "errata_SSWF021_45.h"
 /* USER CODE BEGIN (1) */
+#include "reg_crc.h"
 /* USER CODE END */
 
 
 /* USER CODE BEGIN (2) */
-#define RESET_REASON_CODE_SAVE        (*(volatile uint32 *)0x0802FFFCU)
 /* USER CODE END */
 
 
@@ -134,7 +134,6 @@
 	
 
 /* USER CODE BEGIN (11) */
-    RESET_REASON_CODE_SAVE = 0;
 /* USER CODE END */
 
         /* Workaround for Errata CORTEXR4 66 */
@@ -152,7 +151,7 @@
     if ((SYS_EXCEPTION & POWERON_RESET) != 0U)
     {		
 /* USER CODE BEGIN (12) */
-        RESET_REASON_CODE_SAVE = SYS_EXCEPTION;
+        crcREG->PSA_SIGREGL1 = SYS_EXCEPTION;
 /* USER CODE END */
         /* Add condition to check whether PLL can be started successfully */
         if (_errata_SSWF021_45_both_plls(PLL_RETRIES) != 0U)