Index: firmware/source/sys_main.c
===================================================================
diff -u -r9d4666bf3064df18a6d935125d7a69e4e8234e84 -rb0b3522f2bd0b5b20ecbfd53c8f55b0e646ffa11
--- firmware/source/sys_main.c	(.../sys_main.c)	(revision 9d4666bf3064df18a6d935125d7a69e4e8234e84)
+++ firmware/source/sys_main.c	(.../sys_main.c)	(revision b0b3522f2bd0b5b20ecbfd53c8f55b0e646ffa11)
@@ -62,6 +62,7 @@
 #include "rti.h"
 
 #include "HDCommon.h"
+#include "Accel.h"
 #include "AlarmLamp.h"
 #include "BloodFlow.h"
 #include "Buttons.h"
@@ -71,6 +72,7 @@
 #include "DialOutFlow.h"
 #include "FPGA.h"
 #include "InternalADC.h"
+#include "Interrupts.h"
 #include "MsgQueues.h"
 #include "NVDataMgmt.h"
 #include "OperationModes.h"
@@ -160,25 +162,35 @@
  *************************************************************************/
 static void initSoftware( void )
 {
-    initAlarmMgmt();
+    // initialize ms timer counter
     initTimers();
+    // initialize alarm manager
+    initAlarmMgmt();
+    // initialize drivers
     initCPLD();
     initSafetyShutdown();
-    initWatchdogMgmt();
-    initFPGA();
-    initAlarmLamp();
-    initButtons();
     initInternalADC();
+    initRTC();
+    // initialize services
     initCommBuffers();
+    initFPGA();
     initMsgQueues();
+    initNVDataMgmt();
     initSystemComm();
+    initWatchdogMgmt();
+    // initialize monitors
+    initAccel();
+    initButtons();
     initPresOccl();
+    // initialize controllers
+    initAlarmLamp();
     initBloodFlow();
     initDialInFlow();
     initDialOutFlow();
+    // initialize modes
     initOperationModes();
-    initRTC();
-    initNVDataMgmt();
+    // initialize async interrupt handlers
+    initInterrupts();
 }
 
 /*************************************************************************
@@ -207,7 +219,7 @@
     rtiInit();
     rtiEnableNotification( rtiNOTIFICATION_COMPARE0 | rtiNOTIFICATION_COMPARE1 | rtiNOTIFICATION_COMPARE3 );
     rtiStartCounter( rtiCOUNTER_BLOCK0 );
-    // the timer task (and other comm related interrupts) require FIQ enabled
+    // the timer task requires FIQ enabled
     _enable_FIQ();
     // the general and priority tasks require IRQ enabled
     _enable_IRQ();