Index: firmware/App/Controllers/PresOccl.c
===================================================================
diff -u -ra60ec05d359c0d3f014015e9080b6dbcef0fea28 -rffb9960f7b97e71ba78844c60158d344c909db94
--- firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision a60ec05d359c0d3f014015e9080b6dbcef0fea28)
+++ firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision ffb9960f7b97e71ba78844c60158d344c909db94)
@@ -30,8 +30,17 @@
 // ********** private definitions **********
 
 /// Default publication interval for pressure and occlusion data.
-#define PRES_OCCL_DATA_PUB_INTERVAL        ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )  ///< interval (ms/task time) at which the pressure/occlusion data is published on the CAN bus.
+#define PRES_OCCL_DATA_PUB_INTERVAL         ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )       ///< interval (ms/task time) at which the pressure/occlusion data is published on the CAN bus.
 
+#define ARTERIAL_PRESSURE_V_BIAS            ( 3.0 )                                         ///< Bias voltage for arterial pressure sensor.
+#define ARTERIAL_PRESSURE_SENSITIVITY       ( 0.000005 )                                    ///< Sensitivity for arterial pressure sensor is 5 uV / mmHg
+#define ARTERIAL_PRESSURE_V_PER_BIT         ( ARTERIAL_PRESSURE_V_BIAS / (F32)0x800000 )    ///< Volts per bit in 24-bit arterial pressure sensor reading.
+
+#define VENOUS_PRESSURE_OFFSET              ( 1638 )                                        ///< Offset for 14-bit venous pressure sensor reading.
+#define VENOUS_PRESSURE_SCALE               ( 14745 - VENOUS_PRESSURE_OFFSET )              ///< Scale for venous pressure sensor.
+#define VENOUS_PRESSURE_MIN                 ( 30.0 )                                        ///< Minimum of scale for venous pressure sensor reading (in TBD u/m).
+#define VENOUS_PRESSURE_MAX                 ( 90.0 )                                        ///< Maximum of scale for venous pressure sensor reading (in TBD u/m).
+
 /// Defined states for the pressure and occlusion monitor state machine.
 typedef enum PresOccl_States
 {
@@ -220,15 +229,15 @@
 {
     PRESSURE_STATE_T result = PRESSURE_CONTINUOUS_READ_STATE;
 
-    U16 artPres = getFPGAArterialPressure();
+    S32 artPres = getFPGAArterialPressure();
     U16 venPres = getFPGAVenousPressure();
     U16 bldOccl = getFPGABloodPumpOcclusion();
     U16 dliOccl = getFPGADialInPumpOcclusion();
     U16 dloOccl = getFPGADialOutPumpOcclusion();
 
     // TODO - convert ADC counts to mmHg for each sensor
-    arterialPressure.data = (F32)artPres;
-    venousPressure.data = (F32)venPres;
+    arterialPressure.data = ARTERIAL_PRESSURE_V_PER_BIT * ( (F32)(artPres) / ( ARTERIAL_PRESSURE_SENSITIVITY / ARTERIAL_PRESSURE_V_BIAS ) );
+    venousPressure.data = ( (F32)(venPres - VENOUS_PRESSURE_OFFSET) * (VENOUS_PRESSURE_MAX - VENOUS_PRESSURE_MIN) / (F32)VENOUS_PRESSURE_SCALE ) - VENOUS_PRESSURE_MIN;
     bloodPumpOcclusion.data = (F32)bldOccl;
     dialInPumpOcclusion.data = (F32)dliOccl;
     dialOutPumpOcclusion.data = (F32)dloOccl;