Index: firmware/App/Drivers/InternalADC.h
===================================================================
diff -u -r4fb1e15d35f6b968bab5620909c30baec98bfd4e -red39129abdca4ec343369d83494530b23621e052
--- firmware/App/Drivers/InternalADC.h	(.../InternalADC.h)	(revision 4fb1e15d35f6b968bab5620909c30baec98bfd4e)
+++ firmware/App/Drivers/InternalADC.h	(.../InternalADC.h)	(revision ed39129abdca4ec343369d83494530b23621e052)
@@ -8,70 +8,59 @@
 * @file    InternalADC.h
 *
 * @author  (last)      Vinayakam Mani
-* @date    (last)      13-Aug-2024
+* @date    (last)      14-Aug-2024
 *
 * @author  (original)  Vinayakam Mani
 * @date    (original)  13-Aug-2024
 *
 ***************************************************************************/
-
-#ifndef __INT_ADC_H__
-#define __INT_ADC_H__
-
-#include "DDCommon.h"
-
-/**
- *  @defgroup InternalADC InternalADC
- *  @brief DD internal ADC module.
- *
- *  @addtogroup InternalADC
- *  @{
- */
-
-// ********** public definitions **********
 
+#ifndef __INT_ADC_H__
+#define __INT_ADC_H__
+
+#include "DDCommon.h"
+
+/**
+ *  @defgroup InternalADC InternalADC
+ *  @brief DD internal ADC unit. This unit converts all analog channel (DD
+ *  different voltage rails, pressure, temperature) into digital value for further
+ *  processing ( monitoring and controls).
+ *
+ *  @addtogroup InternalADC
+ *  @{
+ */
+
+// ********** public definitions **********
+
 #define INT_ADC_BITS_PER_CHANNEL        12                      ///< DD internal ADC bits per channel.
 #define INT_ADC_FULL_SCALE_BITS         4095                    ///< DD internal ADC full scale range.
 #define INT_ADC_REF_V                   3.0F                    ///< DD internal ADC reference voltage.
-
-/// Enumeration of DD internal ADC channels.
-typedef enum Int_ADC_Channels
-{
-    INT_ADC_NOT_USED = 0,                                       ///< DD internal ADC channel not used
-    INT_ADC_RO_PUMP_INLET_PRESSURE,                             ///< DD internal ADC RO pump inlet pressure channel
-    INT_ADC_RO_PUMP_OUTLET_PRESSURE,                            ///< DD internal ADC RO pump outlet pressure channel
-    INT_ADC_DRAIN_PUMP_OUTLET_PRESSURE,                         ///< DD internal ADC drain pump outlet pressure channel
-    INT_ADC_DRAIN_PUMP_INLET_PRESSURE,                          ///< DD internal ADC drain pump inlet pressure channel
-    INT_ADC_RO_PUMP_FEEDBACK_DUTY_CYCLE,                        ///< DD internal ADC RO pump feedback duty cycle channel
-    INT_ADC_AVAILABLE_CHANNEL,                                  ///< DD internal ADC available channel
-    INT_ADC_SECONDARY_HEATER_24_VOLTS,                          ///< DD internal ADC secondary heater 24 volt supply channel
-    INT_ADC_TRIMMER_HEATER_24_VOLTS,                            ///< DD internal ADC trimmer heater 24 volt supply channel
-    INT_ADC_BOARD_THERMISTOR,                                   ///< DD internal ADC DD board thermistor channel
-    INT_ADC_FPGA_1_8_VOLTS,                                     ///< DD internal ADC DD FPGA 1.8 volt supply channel
-    INT_ADC_FPGA_1_VOLT,                                        ///< DD internal ADC DD FPGA 1 volt supply channel
-    INT_ADC_PROCESSOR_1_8_VOLTS,                                ///< DD internal ADC DD processor 1.8 volt supply channel
-    INT_ADC_PROCESSOR_1_2_VOLTS,                                ///< DD internal ADC DD processor 1.2 volt supply channel
-    INT_ADC_SENSORS_3_3_VOLTS,                                  ///< DD internal ADC DD sensors 3.3 volt supply channel
-    INT_ADC_SENSORS_5_VOLTS,                                    ///< DD internal ADC DD sensors 5 volt supply channel
-    INT_ADC_MAIN_24_VOLTS,                                      ///< DD internal ADC DD 24 volt supply channel
-    INT_ADC_LOGIC_5_VOLTS,                                      ///< DD internal ADC DD logic 5 volt supply channel
-    INT_ADC_3_3_VOLTS,                                          ///< DD internal ADC DD 3.3 volt supply channel
-    INT_ADC_REFERENCE_VOLTAGE,                                  ///< DD internal ADC reference voltage channel
-    INT_ADC_REF_IN1,                                            ///< DD internal ADC external ADC1 reference voltage channel
-    INT_ADC_REF_IN2,                                            ///< DD internal ADC external ADC2 reference voltage channel
-    INT_ADC_POWER_SUPPLY_1_THERMISTOR,                          ///< DD internal ADC DD power supply 1 thermistor
-    INT_ADC_MAIN_NON_ISOLATED_24_VOLTS,                         ///< DD internal ADC DD 24 volts non-isolated voltage channel
-    INT_ADC_POWER_SUPPLY_GATE_DRIVER,                           ///< DD internal ADC DD power supply gate driver
-    NUM_OF_INT_ADC_CHANNELS                                     ///< Number of DD internal ADC channels
-} INT_ADC_CHANNEL_T;
-
-// ********** public function prototypes **********
-
-void initInternalADC( void );
-void execInternalADC( void );
-U16 getIntADCReading( INT_ADC_CHANNEL_T channel );
+
+/// Enumeration of DD internal ADC channels.
+typedef enum Int_ADC_Channels
+{
+    INT_ADC_NOT_USED = 0,                               ///< Not used
+    INT_ADC_3_3V_SENSOR_ADC_REF,                        ///< Internal ADC channel for 3.3V sensor volatge
+    INT_ADC_24V_ACTUATORS_REG,                          ///< Internal ADC channel for 24V regen (diode drop) to actuators
+    INT_ADC_1_2V_PROCESSOR,                             ///< Internal ADC channel for 1.2V to processor
+    INT_ADC_5V_SENSORS,                                 ///< Internal ADC channel for 5V to sensors
+    INT_ADC_BOARD_THERMISTOR,                           ///< Internal ADC channel for PCB temperature
+    INT_ADC_1_25_FPGA_ADC_REF,                          ///< Internal ADC channel for FPGA ADC reference voltage
+    INT_ADC_3_3V,                                       ///< Internal ADC channel for 3.3V
+    INT_ADC_5V_LOGIC,                                   ///< Internal ADC channel for 5V to logic
+    INT_ADC_24V_ACTUATORS,                              ///< Internal ADC channel for 24V to actuators
+    INT_ADC_BACKUP_V,                                   ///< Internal ADC channel for VBackup
+    INT_ADC_DUMMY,                                      ///< Internal ADC channel - not used, needed to get even number of channels
+    NUM_OF_INT_ADC_CHANNELS                             ///< Number of used internal ADC channels.
+} INT_ADC_CHANNEL_T;
+
+// ********** public function prototypes **********
+
+void initInternalADC( void );
+void execInternalADC( void );
+U16 getIntADCReading( INT_ADC_CHANNEL_T channel );
 F32 getIntADCVoltageConverted( INT_ADC_CHANNEL_T channel );
-
-/**@}*/
-
-#endif
+
+/**@}*/
+
+#endif