Index: firmware/source/sys_startup.c
===================================================================
diff -u -reff7b1575f008f81b29ef906f6346fac6012d3ab -r6c1d6a3eaf065c2b2d537d9fef793d73ea328359
--- firmware/source/sys_startup.c	(.../sys_startup.c)	(revision eff7b1575f008f81b29ef906f6346fac6012d3ab)
+++ firmware/source/sys_startup.c	(.../sys_startup.c)	(revision 6c1d6a3eaf065c2b2d537d9fef793d73ea328359)
@@ -64,6 +64,7 @@
 
 #include "errata_SSWF021_45.h"
 /* USER CODE BEGIN (1) */
+#include "reg_crc.h"
 /* USER CODE END */
 
 
@@ -150,6 +151,7 @@
     if ((SYS_EXCEPTION & POWERON_RESET) != 0U)
     {		
 /* USER CODE BEGIN (12) */
+        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)
@@ -636,6 +638,16 @@
     vimInit();    
 
 /* USER CODE BEGIN (74) */
+    // Shuffle IRQ priorities per design requirements
+    vimChannelMap( 3, 40, &rtiCompare1Interrupt );
+    vimChannelMap( 5, 64, &rtiCompare3Interrupt );
+    vimChannelMap( 10, 3, &het1HighLevelInterrupt );
+    vimChannelMap( 13, 5, &linHighLevelInterrupt );
+    vimChannelMap( 15, 29, &adc1Group1Interrupt );
+    vimChannelMap( 16, 15, &can1HighLevelInterrupt );
+    vimChannelMap( 29, 13, &can1LowLevelInterrupt );
+    vimChannelMap( 40, 10, &dmaBTCAInterrupt );
+    vimChannelMap( 64, 16, &sciHighLevelInterrupt );
 /* USER CODE END */
 
     /* Configure system response to error conditions signaled to the ESM group1 */