Index: firmware/App/Services/Interrupts.c
===================================================================
diff -u -rbe83f01a4d54cbd0d92b68cb95a15dcbb06a9a51 -r1bbf9da32e622975efed00b1a7589387a9829440
--- firmware/App/Services/Interrupts.c	(.../Interrupts.c)	(revision be83f01a4d54cbd0d92b68cb95a15dcbb06a9a51)
+++ firmware/App/Services/Interrupts.c	(.../Interrupts.c)	(revision 1bbf9da32e622975efed00b1a7589387a9829440)
@@ -23,6 +23,9 @@
 #include "Interrupts.h"
 #include "FPGA.h"
 #include "SystemComm.h"
+#ifdef DEBUG_ENABLED
+    #include "SystemCommMessages.h"
+#endif
 
 // ********** private definitions **********
 
@@ -89,23 +92,47 @@
  *************************************************************************/
 void canErrorNotification(canBASE_t *node, uint32 notification)
 {
+#ifdef DEBUG_ENABLED
+    // TODO - temporary debug code - remove later
+    char debugStr[ 256 ];
+#endif
     if ( node == canREG1 )
     {
         if ( notification & canLEVEL_PARITY_ERR )
         {
             can1ParityCnt++;
+#ifdef DEBUG_ENABLED
+        // TODO - temporary debug code - remove later
+        sprintf( debugStr, "CAN parity error:%5d \n", can1ParityCnt );
+        sendDebugData( (U08*)debugStr, strlen(debugStr) );
+#endif
         }
         else if ( notification & canLEVEL_BUS_OFF )
         {
             can1BusOffCnt++;
+#ifdef DEBUG_ENABLED
+        // TODO - temporary debug code - remove later
+        sprintf( debugStr, "CAN bus off error:%5d \n", can1BusOffCnt );
+        sendDebugData( (U08*)debugStr, strlen(debugStr) );
+#endif
         }
         else if ( notification & canLEVEL_WARNING )
         {
             can1WarningCnt++;
+#ifdef DEBUG_ENABLED
+        // TODO - temporary debug code - remove later
+        sprintf( debugStr, "CAN bus warning:%5d \n", can1WarningCnt );
+        sendDebugData( (U08*)debugStr, strlen(debugStr) );
+#endif
         }
         else if ( notification & canLEVEL_PASSIVE )
         {
             can1PassiveCnt++;
+#ifdef DEBUG_ENABLED
+        // TODO - temporary debug code - remove later
+        sprintf( debugStr, "CAN passive warning:%5d \n", can1PassiveCnt );
+        sendDebugData( (U08*)debugStr, strlen(debugStr) );
+#endif
         }
         else
         {
@@ -127,17 +154,31 @@
  *************************************************************************/
 void sciNotification(sciBASE_t *sci, uint32 flags)
 {
+#ifdef DEBUG_ENABLED
+    // TODO - temporary debug code - remove later
+    char debugStr[ 256 ];
+#endif
     if ( sci == sciREG )
     {
         if ( ( flags & SCI_FE_INT ) != 0 )
         {
             sci1FrameErrorCnt++;
             // TODO - clear and try to do something to recover (+ max retries = comm fault)
+#ifdef DEBUG_ENABLED
+            // TODO - temporary debug code - remove later
+            sprintf( debugStr, "Debug UART frame error:%5d \n", sci1FrameErrorCnt );
+            sendDebugData( (U08*)debugStr, strlen(debugStr) );
+#endif
         }
         if ( ( flags & SCI_OE_INT ) != 0 )
         {
             sci1OverrunErrorCnt++;
             // TODO - clear and try to do something to recover (+ max retries = comm fault)
+#ifdef DEBUG_ENABLED
+            // TODO - temporary debug code - remove later
+            sprintf( debugStr, "Debug UART overrun error:%5d \n", sci1OverrunErrorCnt );
+            sendDebugData( (U08*)debugStr, strlen(debugStr) );
+#endif
         }
     }
     else if ( sci == scilinREG )
@@ -146,11 +187,21 @@
         {
             sci2FrameErrorCnt++;
             // TODO - clear and try to do something to recover (+ max retries = comm fault)
+#ifdef DEBUG_ENABLED
+            // TODO - temporary debug code - remove later
+            sprintf( debugStr, "FPGA UART frame error:%5d \n", sci2FrameErrorCnt );
+            sendDebugData( (U08*)debugStr, strlen(debugStr) );
+#endif
         }
         if ( ( flags & SCI_OE_INT ) != 0 )
         {
             sci2OverrunErrorCnt++;
             // TODO - clear and try to do something to recover (+ max retries = comm fault)
+#ifdef DEBUG_ENABLED
+            // TODO - temporary debug code - remove later
+            sprintf( debugStr, "FPGA UART overrun error:%5d \n", sci2OverrunErrorCnt );
+            sendDebugData( (U08*)debugStr, strlen(debugStr) );
+#endif
         }
     }
     else