Index: firmware/source/sys_startup.c
===================================================================
diff -u -reff7b1575f008f81b29ef906f6346fac6012d3ab -rbf7c3835ce5a7bcbc47c305fb2fe5490d0899db8
--- firmware/source/sys_startup.c	(.../sys_startup.c)	(revision eff7b1575f008f81b29ef906f6346fac6012d3ab)
+++ firmware/source/sys_startup.c	(.../sys_startup.c)	(revision bf7c3835ce5a7bcbc47c305fb2fe5490d0899db8)
@@ -636,6 +636,16 @@
     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 */