Index: firmware/App/Controllers/Valves.c
===================================================================
diff -u -r014dc3dfd1d13bf6a53974f6f8a8c1ad7bea42db -rd9204dd2eba214edab007ce327c439113ab5fe41
--- firmware/App/Controllers/Valves.c	(.../Valves.c)	(revision 014dc3dfd1d13bf6a53974f6f8a8c1ad7bea42db)
+++ firmware/App/Controllers/Valves.c	(.../Valves.c)	(revision d9204dd2eba214edab007ce327c439113ab5fe41)
@@ -35,6 +35,10 @@
 #define ENERGIZED                                       1                                              ///< 1 for energized valve.
 #define ALL_VALVES_DEENERGIZED                          0x0000                                         ///< 0 in U16 bit field for all valves.
 
+#define VALVE_PWM_PERIOD                                50                                             ///< Valve PWM Period in 0.1 us res ( 20kHz )
+#define VALVE_PWM_LOW                                   ( VALVE_PWM_PERIOD * 0.2 )                     ///< Valve low PWM percentage
+#define VALVE_PWM_PULL_IN                               100                                            ///< Valve 'strike' period at 100% PWM in ms
+
 #define MAX_VALVE_STATE_MISMATCH_TIMER_COUNT            (100 / TASK_PRIORITY_INTERVAL )                ///< Maximum time commanded valves state can fail to match read back valve states in a row.
 
 #define VALVES_STATE_PUB_INTERVAL                       ( MS_PER_SECOND / TASK_PRIORITY_INTERVAL )     ///< Interval ( ms / task time ) at which valves states are published on CAN bus.
@@ -83,6 +87,7 @@
 void initValves( void )
 {
     FP_VALVES_T valve;
+    U16 valvePWMEnable = 0;
 
     // initialize valve states
     for ( valve = FP_FIRST_VALVE; valve < FP_NUM_OF_VALVES; valve++ )
@@ -97,6 +102,7 @@
         valveSensedStates[ valve ].ovInitData      = DEENERGIZED;
         valveSensedStates[ valve ].ovData          = DEENERGIZED;
         valveSensedStates[ valve ].override        = OVERRIDE_RESET;
+        valvePWMEnable                            |= ValveBits[ valve ];
     }
 
     // initialize time intervals and timer counters
@@ -107,6 +113,12 @@
     valvesStatesPublishInterval.ovInitData  = 0;
     valvesStatesPublishInterval.override    = OVERRIDE_RESET;
 
+    // initially set valve PWM configuration and enable
+    setFPGAValvePWMPullIn( VALVE_PWM_PULL_IN );
+    setFPGAValvePWMLow( VALVE_PWM_LOW );
+    setFPGAValvePWMPeriod( VALVE_PWM_PERIOD );
+    setFPGAValvePWMEnable( valvePWMEnable );
+
     // initially set all valves to de-energized state via FPGA
     updateValveStates( ALL_VALVES_DEENERGIZED );
     setFPGAValveStates( commandedValvesStates );