Index: firmware/App/Services/FpgaDD.c
===================================================================
diff -u -r166d929af60e9051ca100b6914d0bc0af76576b5 -ra85769a39d5c918a1595b22b66322df123017601
--- firmware/App/Services/FpgaDD.c	(.../FpgaDD.c)	(revision 166d929af60e9051ca100b6914d0bc0af76576b5)
+++ firmware/App/Services/FpgaDD.c	(.../FpgaDD.c)	(revision a85769a39d5c918a1595b22b66322df123017601)
@@ -102,6 +102,10 @@
 #define FPGA_D5_HEATER_CNTRL_BIT        0x01                    ///< FPGA GIO D5 heater control bit mask
 #define FPGA_D5_HEATER_PWM_ENABLE_BIT   0x02                    ///< FPGA D5 PWM based heater control bit mask
 
+#define MAX_PUMP_SPEED                  3000.0F                 ///< Maxon controller pump maximum speed
+#define PUMP_SPEED_OFFSET               168.7F                  ///< Speed Scale adjustment intercept factor
+#define PUMP_SPEED_FULL_SCALE           3187.0F                 ///< Speed scale adjustment slope factor
+
 /// FPGA size of V3 read bytes.
 #define FPGA_SIZE_OF_V3_READ_BYTES      ( FPGA_READ_V3_END_BYTE_NUM - FPGA_READ_V3_START_BYTE_NUM )
 
@@ -252,12 +256,15 @@
     U16 fpgaD76PumpHallSense;               ///< Reg 444. UF D76_Pump hall sensor pulse width
     U16 fpgaD76PumpStepCountStatus;         ///< Reg 446. UF pump revolution down count status
     U08 fpgaD76PumpFault;                   ///< Reg 448: UF pump fault
+    U08 fpgaUnUsed;                         ///< Reg 449: Unused byte
+    U16 fpgaD79PumpSpeed;                   ///< Reg 450: 4-wire Rinse pump (D79) speed
 
-    U32 fpgaD74CondDataOut;                 ///< Reg 449. Data read from Conductivity Sensor D74 register
-    U16 fpgaD74CondCond;                    ///< Reg 453. D74 conductivity
-    U16 fpgaD74CondTemp;                    ///< Reg 455. D74 Temperature
-    U08 fpgaD74CondReadCnt;                 ///< Reg 457. D74 successful read count
-    U08 fpgaD74CondErrorCnt;                ///< Reg 458. D74 error read count
+    U32 fpgaD74CondDataOut;                 ///< Reg 452. Data read from Conductivity Sensor D74 register
+    U16 fpgaD74CondCond;                    ///< Reg 456. D74 conductivity
+    U16 fpgaD74CondTemp;                    ///< Reg 458. D74 Temperature
+    U08 fpgaD74CondReadCnt;                 ///< Reg 460. D74 successful read count
+    U08 fpgaD74CondErrorCnt;                ///< Reg 461. D74 error read count
+
 } DD_FPGA_SENSORS_T;
 
 typedef struct
@@ -356,9 +363,10 @@
     U16 fpgaD76PumpSpeed;                   ///< Reg 152. UF Pump Speed/RPM Control
     U16 fpgaD76PumpRevCount;                ///< Reg 154. UF pump revolution count
     U08 fpgaD76PumpControl;                 ///< Reg 156. UF Pump Control
-    U08 fpgaConSensD74Control;              ///< Reg 157. Conductivity/Temperature Sensors D74 Control registers
-    U16 fpgaConSensD74_Addrs;               ///< Reg 158. D74 Initialization Address register
-    U32 fpgaConSensD74_Data_In;             ///< Reg 160. D74 Initialization data register
+    U08 fpgaD79PumpControl;                 ///< Reg 157. D79 pump control
+    U08 fpgaConSensD74Control;              ///< Reg 158. Conductivity/Temperature Sensors D74 Control registers
+    U16 fpgaConSensD74_Addrs;               ///< Reg 159. D74 Initialization Address register
+    U32 fpgaConSensD74_Data_In;             ///< Reg 161. D74 Initialization data register
 } FPGA_ACTUATORS_T;
 #pragma pack(pop)
 
@@ -1241,7 +1249,16 @@
  *************************************************************************/
 void setFPGAD48PumpSpeed( U16 speed )
 {
-    fpgaActuatorSetPoints.fpgaD48PumpSpeed = speed;
+#ifdef __MAXON_SPEED_UPDATE__
+    {
+        U16 currentSpeed =(U16)( ( ( speed + PUMP_SPEED_OFFSET  ) / PUMP_SPEED_FULL_SCALE ) *  MAX_PUMP_SPEED );
+        fpgaActuatorSetPoints.fpgaD48PumpSpeed = currentSpeed;
+    }
+#else
+    {
+        fpgaActuatorSetPoints.fpgaD48PumpSpeed = speed;
+    }
+#endif
 }
 
 /*********************************************************************//**
@@ -1255,7 +1272,16 @@
  *************************************************************************/
 void setFPGAD12PumpSpeed( U16 speed )
 {
-    fpgaActuatorSetPoints.fpgaD12PumpSpeed = speed;
+#ifdef __MAXON_SPEED_UPDATE__
+    {
+        U16 currentSpeed =(U16)( ( ( speed + PUMP_SPEED_OFFSET  ) / PUMP_SPEED_FULL_SCALE ) *  MAX_PUMP_SPEED );
+        fpgaActuatorSetPoints.fpgaD12PumpSpeed = currentSpeed;
+    }
+#else
+    {
+        fpgaActuatorSetPoints.fpgaD12PumpSpeed = speed;
+    }
+#endif
 }
 
 /*********************************************************************//**
@@ -2333,6 +2359,20 @@
 
 /*********************************************************************//**
  * @brief
+ * The setFPGAD79RinsePumpPWMControl function sets the 4-wire Rinse pump
+ * control.
+ * @details \b Inputs: none
+ * @details \b Outputs: fpgaD79PumpControl
+ * @param control the PWM count to control the rinse pump
+ * @return none
+ *************************************************************************/
+void setFPGAD79RinsePumpPWMControl( U08 control )
+{
+    fpgaActuatorSetPoints.fpgaD79PumpControl = control;
+}
+
+/*********************************************************************//**
+ * @brief
  * The getFPGAVersions function gets the FPGA version numbers.
  * @details \b Inputs: fpgaHeader
  * @details \b Outputs: none
@@ -3928,4 +3968,17 @@
     return fpgaSensorReadings.fpgaD42RxFIFODataOut;
 }
 
+/*********************************************************************//**
+ * @brief
+ * The getFPGAD79RinsePumpSpeed function returns the 4-wire rinse pump
+ * speed.
+ * @details \b Inputs: fpgaD79PumpSpeed
+ * @details \b Outputs: none
+ * @return fpgaSensorReadings.fpgaD79PumpSpeed
+ *************************************************************************/
+U16 getFPGAD79RinsePumpSpeed( void )
+{
+    return fpgaSensorReadings.fpgaD79PumpSpeed;
+}
+
 /**@}*/