Index: firmware/App/Drivers/PeristalticPump.c
===================================================================
diff -u -r09352c35f1c46a7df3b86fb693fceeb834761148 -r2bf661ae63145fbf02329d96fecb32b0aa7dbb44
--- firmware/App/Drivers/PeristalticPump.c	(.../PeristalticPump.c)	(revision 09352c35f1c46a7df3b86fb693fceeb834761148)
+++ firmware/App/Drivers/PeristalticPump.c	(.../PeristalticPump.c)	(revision 2bf661ae63145fbf02329d96fecb32b0aa7dbb44)
@@ -35,9 +35,10 @@
 #define H4_HZ_TO_RPM_SCALAR     10.0F                                           ///< Blood pump Hz to RPM scalar.
 #define H4_PERIOD_TO_HZ(p)      ( 1.0F / (F32)((S32)(p) * H4_PERIOD_SEC) )      ///< Blood pump period to Hz conversion macro.
 #define H4_HZ_TO_RPM(h)         ((h) * H4_HZ_TO_RPM_SCALAR)                     ///< Blood pump Hz to RPM conversion macro.
-#define H4_ZERO_SPEED_PERIOD    0xFFFF                                          ///< Blood pump period reported when pump is stopped.
-#define H4_INVALID_SPEED_PERIOD   0x0001                                        ///< Blood pump invalid speed period
 
+#define H4_ZERO_SPEED_PERIOD      0xFFFF                                        ///< Blood pump period reported when pump is stopped.
+#define H4_INVALID_SPEED_PERIOD   0x0001                                        ///< Blood pump rotor speed
+
 #define H4_ROT_GEAR_RATIO       64.0F                                           ///< Blood pump rotor to motor gear ratio.
 #define H4_ROT_PERIOD_SEC       0.001F                                          ///< Blood pump rotor feedback period in seconds.
 #define H4_ROT_PERIOD_TO_HZ(p)  ( 1.0F / (F32)((S32)(p) * H4_ROT_PERIOD_SEC) )  ///< Blood pump rotor period to Hz conversion macro.