Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -r9a96522e0a94724a13c2c9c8f60cf8d18ebde218 -r1cfa9cbcd9ae84a8df767c7777ff3beca067aaa8
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 9a96522e0a94724a13c2c9c8f60cf8d18ebde218)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 1cfa9cbcd9ae84a8df767c7777ff3beca067aaa8)
@@ -57,13 +57,15 @@
 static const U32 DIP_RESERVOIRS_DATA_MESSAGE_ALARM_THRESHOLD = ((2 * MS_PER_SECOND) / TASK_GENERAL_INTERVAL);
 static const U32 DIP_DG_OP_MODE_DATA_MESSAGE_ALARM_THRESHOLD = ((2 * MS_PER_SECOND) / TASK_GENERAL_INTERVAL);
 
+// ********** private data **********
+
 // DG status
 static DG_OP_MODE_T dgCurrentOpMode;                                        ///< Current DG operation mode.
 static U32 dgSubMode;                                                       ///< Current state (sub-mode) of current DG operation mode.
 static BOOL dgStartCommandSent;                                             ///< Flag indicates command to start DG has been sent.
 static BOOL dgStarted;                                                      ///< Flag indicates whether we have commanded the DG to start or stop.
 static BOOL dgTrimmerHeaterOn;                                              ///< Flag indicates whether we have commanded the DG to start or stop the trimmer heater.
-
+
 // State machine states
 static U32 timeStartMS = 0; // TODO is this needed?
 
@@ -505,7 +507,7 @@
  * The setDGOpMode function sets the latest DG operating mode reported by
  * the DG.
  * @details Inputs: none
- * @details Outputs: dgCurrentOpMode, dgSubMode
+ * @details Outputs: dgCurrentOpMode, dgSubMode, dgOpModeDataFreshFlag
  * @param opMode operating mode reported by DG
  * @param subMode sub-mode (current state) of operating mode reported by DG
  * @return none
@@ -530,7 +532,8 @@
  * The setDialysateTemperatureReadings function sets the latest dialysate
  * temperatures reported by the DG.
  * @details Inputs: none
- * @details Outputs: dgDialysateTemp, dgRedundantDialysateTemp
+ * @details Outputs: dgDialysateTemp, dgRedundantDialysateTemp,
+ * dgDialysateTemperatureDataFreshFlag
  * @param temp1 dialysate temperature reported by DG
  * @param temp2 redundant dialysate temperature reported by DG
  * @return none
@@ -548,7 +551,8 @@
  * The setDGReservoirsData function sets the latest reservoir data
  * reported by the DG.
  * @details Inputs: none
- * @details Outputs: dgActiveReservoir, dgReservoirFillVolumeTarget, dgReservoirDrainVolumeTarget
+ * @details Outputs: dgActiveReservoir, dgReservoirFillVolumeTarget,
+ * dgReservoirDrainVolumeTarget, dgReservoirsDataFreshFlag
  * @param resID ID of active reservoir
  * @param fillVol Reservoir fill to volume reported by DG
  * @param drainVol Reservoir drain to volume reported by DG
@@ -575,7 +579,7 @@
  * The setDialysateFlowData function sets the latest dialysate flow rate
  * and its freshness status. The dialysate flow data is reported by the DG.
  * @details Inputs: none
- * @details Outputs: dgDialysateFlowRateMlMin
+ * @details Outputs: dgDialysateFlowRateMlMin, dgDialysateFlowDataFreshFlag
  * @param flowRate latest dialysate flow rate (mL/min) reported by DG
  * @return none
  *************************************************************************/
@@ -598,7 +602,8 @@
  * every 100 ms.
  * @details Inputs: none
  * @details Outputs: loadCellWeightInGrams[], smFilteredReservoirWeightInGrams[],
- * lgFilteredReservoirWeightInGrams[]
+ * lgFilteredReservoirWeightInGrams[], lgLoadCellReadingsTotal[],
+ * lgLoadCellBackupReadingsTotal[], lgLoadCellReadingsIdx, dgLoadCellDataFreshFlag
  * @param res1Primary New weight from primary load cell of reservoir 1
  * @param res1Backup New weight from backup load cell of reservoir 1
  * @param res2Primary New weight from primary load cell of reservoir 2
@@ -1152,7 +1157,7 @@
  * @brief
  * The checkDGTrimmerHeaterStatus function checks to see the status of the
  * trimmer heater and set them according to the status of the trimmer heater flag.
- * @details Inputs: dgTrimmerHeaterOn
+ * @details Inputs: dgTrimmerHeaterOn, dgHeatersData
  * @details Outputs: none
  * @return none
  *************************************************************************/