Index: firmware/App/Services/PIControllers.c
===================================================================
diff -u -r8e6488e189349e0f87f2fb21fa8176aced0b5a43 -rf308cc4c35eab630ebbbde405cfe47d049afeafb
--- firmware/App/Services/PIControllers.c	(.../PIControllers.c)	(revision 8e6488e189349e0f87f2fb21fa8176aced0b5a43)
+++ firmware/App/Services/PIControllers.c	(.../PIControllers.c)	(revision f308cc4c35eab630ebbbde405cfe47d049afeafb)
@@ -7,8 +7,8 @@
 *
 * @file PIControllers.c
 *
-* @author (last) Sean Nash
-* @date (last) 04-Jun-2020
+* @author (last) Quang Nguyen
+* @date (last) 22-Jul-2020
 *
 * @author (original) Sean
 * @date (original) 04-Feb-2020
@@ -27,8 +27,7 @@
 
 // ********** private definitions **********
 
-/// minimum integral coefficient - cannot be zero.
-#define MIN_KI                      NEARLY_ZERO
+#define MIN_KI                      NEARLY_ZERO     ///< minimum integral coefficient - cannot be zero.
 
 /// record for PI controller.
 typedef struct {