Index: firmware/App/Services/FpgaTD.h
===================================================================
diff -u -r52e1d4487a69a1ef0475321084527c0ba86c0892 -raa6d45143096dfab776ce2ed7c775cfe2dd6db18
--- firmware/App/Services/FpgaTD.h	(.../FpgaTD.h)	(revision 52e1d4487a69a1ef0475321084527c0ba86c0892)
+++ firmware/App/Services/FpgaTD.h	(.../FpgaTD.h)	(revision aa6d45143096dfab776ce2ed7c775cfe2dd6db18)
@@ -31,13 +31,23 @@
 
 // ********** public definitions **********
 
-#define FPGA_PINCH_VALVES_1_32_STEP      0x03                                   ///< Bit mask for configuring pinch valve for 1/32 step.
-#define FPGA_PINCH_VALVES_REVERSE        0x08                                   ///< Bit mask for configuring pinch valve for reverse direction.
-#define FPGA_PINCH_VALVES_DISABLE        0x10                                   ///< Bit mask for configuring pinch valve to be disabled.
-#define FPGA_PINCH_VALVES_NOT_RESET      0x20                                   ///< Bit mask for configuring pinch valve to not be in reset.
-#define FPGA_PINCH_VALVES_NOT_SLEEP      0x40                                   ///< Bit mask for configuring pinch valve to not be in sleep mode.
-#define FPGA_PINCH_VALVES_NEW_POS_CMD    0x80                                   ///< Bit mask for configuring pinch valve to accept a new position command.
+// Bit definitions for pinch valve control register
+#define FPGA_PINCH_VALVES_1_32_STEP                 0x03                        ///< Bit mask for configuring pinch valve for 1/32 step.
+#define FPGA_PINCH_VALVES_REVERSE                   0x08                        ///< Bit mask for configuring pinch valve for reverse direction.
+#define FPGA_PINCH_VALVES_DISABLE                   0x10                        ///< Bit mask for configuring pinch valve to be disabled.
+#define FPGA_PINCH_VALVES_NOT_RESET                 0x20                        ///< Bit mask for configuring pinch valve to not be in reset.
+#define FPGA_PINCH_VALVES_NOT_SLEEP                 0x40                        ///< Bit mask for configuring pinch valve to not be in sleep mode.
+#define FPGA_PINCH_VALVES_NEW_POS_CMD               0x80                        ///< Bit mask for configuring pinch valve to accept a new position command.
 
+// Bit definitions for syringe pump control register
+#define SYRINGE_PUMP_CONTROL_SLEEP_OFF              0x40                        ///< Syringe pump control register bit for sleep mode (active low).
+#define SYRINGE_PUMP_CONTROL_NOT_RESET              0x20                        ///< Syringe pump control register bit for resetting stepper motor (active low).
+#define SYRINGE_PUMP_CONTROL_ENABLE                 0x00                        ///< Syringe pump control register bit mask for enable.
+#define SYRINGE_PUMP_CONTROL_DISABLE                0x10                        ///< Syringe pump control register bit for enable (active low).
+#define SYRINGE_PUMP_CONTROL_REVERSE_DIR            0x08                        ///< Syringe pump control register bit for direction (0=fwd, 1=rev).
+#define SYRINGE_PUMP_CONTROL_FORWARD_DIR            0x00                        ///< Syringe pump control register bit mask for forward direction.
+#define SYRINGE_PUMP_CONTROL_32TH_STEP              0x03                        ///< Syringe pump control register bits for 1/32 micro-stepping mode.
+
 // ********** public function prototypes **********
 
 void initFpgaTD( void );
@@ -64,6 +74,9 @@
 S16  getH4RotorCount( void );
 U08  getH6Status( void );
 
+void setH5ControlFlags( U08 ctrl );
+void setH5StepToggleTime( U32 microSeconds );
+
 U16  getH2Pressure( void );
 S16  getH2Temperature( void );
 U08  getH2ReadCounter( void );