Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r17b1e8df35d294dfa84a6ee9c23c1b4de956c4e9 -r2346a0cb59957d90fe61cb3bff4ec7ffc3df10a4
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 17b1e8df35d294dfa84a6ee9c23c1b4de956c4e9)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 2346a0cb59957d90fe61cb3bff4ec7ffc3df10a4)
@@ -434,6 +434,41 @@
     return result;
 }
 
+/*********************************************************************//**
+ * @brief
+ * The sendHeparinCommandResponse function constructs a Heparin command response
+ * to the UI and queues the msg for transmit on the
+ * appropriate CAN channel.
+ * @details Inputs: none
+ * @details Outputs: Heparin command response msg constructed and queued.
+ * @param accepted flag indicating whether request was accepted
+ * @param rejReason rejection reason code
+ * @param heparinDeliveryState current Heparin delivery state
+ * @return TRUE if msg successfully queued for transmit, FALSE if not
+ *************************************************************************/
+BOOL sendHeparinCommandResponse( U32 accepted, U32 rejReason, U32 heparinDeliveryState )
+{
+    BOOL result;
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
+
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_HD_PRESSURE_LIMITS_CHANGE_RESPONSE;
+    msg.hdr.payloadLen = sizeof( U32 ) * 3;
+
+    memcpy( payloadPtr, &accepted, sizeof( U32 ) );
+    payloadPtr += sizeof( U32 );
+    memcpy( payloadPtr, &rejReason, sizeof( U32 ) );
+    payloadPtr += sizeof( U32 );
+    memcpy( payloadPtr, &heparinDeliveryState, sizeof( U32 ) );
+
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_2_UI, ACK_REQUIRED );
+
+    return result;
+}
+
 /*********************************************************************//**
  * @brief
  * The sendTreatmentParamsRangesToUI function constructs a treatment parameter
@@ -1084,6 +1119,62 @@
     result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_BROADCAST, ACK_NOT_REQUIRED );
 
     return result;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The broadcastSyringePumpData function constructs a syringe pump data
+ * msg to be broadcast and queues the msg for transmit on the appropriate CAN channel.
+ * @details Inputs: none
+ * @details Outputs: syringe pump data msg constructed and queued.
+ * @param data syringe pump data record
+ * @return TRUE if msg successfully queued for transmit, FALSE if not
+ *************************************************************************/
+BOOL broadcastSyringePumpData( SYRINGE_PUMP_DATA_PAYLOAD_T data )
+{
+    BOOL result;
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
+
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_HD_SYRINGE_PUMP_DATA;
+    msg.hdr.payloadLen = sizeof( SYRINGE_PUMP_DATA_PAYLOAD_T );
+
+    memcpy( payloadPtr, &data, sizeof( SYRINGE_PUMP_DATA_PAYLOAD_T ) );
+
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_BROADCAST, ACK_NOT_REQUIRED );
+
+    return result;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The broadcastHeparinData function constructs a Heparin data message
+ * to be broadcast and queues the msg for transmit on the appropriate CAN channel.
+ * @details Inputs: none
+ * @details Outputs: Heparin data msg constructed and queued.
+ * @param data Heparin data record
+ * @return TRUE if msg successfully queued for transmit, FALSE if not
+ *************************************************************************/
+BOOL broadcastHeparinData( F32 volume )
+{
+    BOOL result;
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
+
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_HD_HEPARIN_DATA_BROADCAST;
+    msg.hdr.payloadLen = sizeof( F32 );
+
+    memcpy( payloadPtr, &volume, sizeof( F32 ) );
+
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_BROADCAST, ACK_NOT_REQUIRED );
+
+    return result;
 }
 
 /*********************************************************************//**
@@ -2216,6 +2307,31 @@
 
 /*********************************************************************//**
  * @brief
+ * The handleHeparinCommandRequest function handles a Heparin command
+ * request message from the UI.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleHeparinCommandRequest( MESSAGE_T *message )
+{
+    if ( sizeof( U32 ) == message->hdr.payloadLen )
+    {
+        U32 payload;
+
+        memcpy( &payload, &message->payload[0], sizeof( U32 ) );
+
+        userHeparinRequest( (HEPARIN_CMD_T)payload );
+    }
+    else
+    {
+        sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_HD_2_UI, FALSE );
+    }
+}
+
+/*********************************************************************//**
+ * @brief
  * The handleSalineBolusRequest function handles a saline bolus request
  * message from the UI.
  * @details Inputs: none
@@ -4345,4 +4461,253 @@
     sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
 }
 
+/*********************************************************************//**
+ * @brief
+ * The handleTestSyringePumpDataBroadcastIntervalOverrideRequest function handles a
+ * request to override the syringe pump data broadcast interval.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestSyringePumpDataBroadcastIntervalOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetSyringePumpDataPublishIntervalOverride( (U32)(payload.state.u32) );
+        }
+        else
+        {
+            result = testResetSyringePumpDataPublishIntervalOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestSyringePumpOperationRequest function handles a
+ * request to initiate a syringe pump operation.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestSyringePumpOperationRequest( MESSAGE_T *message )
+{
+    BOOL result = FALSE;
+
+    if ( message->hdr.payloadLen == sizeof(SYRINGE_PUMP_OP_PAYLOAD_T) )
+    {
+        SYRINGE_PUMP_OP_PAYLOAD_T payload;
+
+        memcpy( &payload, message->payload, sizeof(SYRINGE_PUMP_OP_PAYLOAD_T) );
+        result = testSyringePumpOperationRequest( payload );
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestSyringePumpMeasuredRateOverrideRequest function handles a
+ * request to override the syringe pump measured rate.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestSyringePumpMeasuredRateOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetSyringePumpMeasuredRateOverride( payload.state.f32 );
+        }
+        else
+        {
+            result = testResetSyringePumpMeasuredRateOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestSyringePumpMeasuredForceOverrideRequest function handles a
+ * request to override the syringe pump measured force analog signal.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestSyringePumpMeasuredForceOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetSyringePumpMeasuredForceOverride( payload.state.f32 );
+        }
+        else
+        {
+            result = testResetSyringePumpMeasuredForceOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestSyringePumpMeasuredSyringeDetectOverrideRequest function handles a
+ * request to override the syringe pump syringe detected analog signal.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestSyringePumpMeasuredSyringeDetectOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetSyringePumpMeasuredSyringeDetectOverride( payload.state.f32 );
+        }
+        else
+        {
+            result = testResetSyringePumpMeasuredSyringeDetectOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestSyringePumpMeasuredHomeOverrideRequest function handles a
+ * request to override the syringe pump measured home analog signal.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestSyringePumpMeasuredHomeOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetSyringePumpMeasuredHomeOverride( payload.state.f32 );
+        }
+        else
+        {
+            result = testResetSyringePumpMeasuredHomeOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestSyringePumpMeasuredPositionOverrideRequest function handles a
+ * request to override the syringe pump measured position.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestSyringePumpMeasuredPositionOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetSyringePumpMeasuredPositionOverride( (S32)(payload.state.u32) );
+        }
+        else
+        {
+            result = testResetSyringePumpMeasuredPositionOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestSyringePumpMeasuredVolumeOverrideRequest function handles a
+ * request to override the syringe pump measured volume delivered.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestSyringePumpMeasuredVolumeOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetSyringePumpMeasuredVolumeOverride( payload.state.f32 );
+        }
+        else
+        {
+            result = testResetSyringePumpMeasuredVolumeOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
 /**@}*/