Index: firmware/App/Drivers/CPLD.c
===================================================================
diff -u -r4d7d40a27130dc813d653f044cbb856b1b7d8481 -r97e0100921ccad633b39b509a93a7237e4d80446
--- firmware/App/Drivers/CPLD.c	(.../CPLD.c)	(revision 4d7d40a27130dc813d653f044cbb856b1b7d8481)
+++ firmware/App/Drivers/CPLD.c	(.../CPLD.c)	(revision 97e0100921ccad633b39b509a93a7237e4d80446)
@@ -29,7 +29,7 @@
 // ********** private definitions **********
 
 #define WD_PET_GIO_PORT_PIN         1U                                                              ///< Watchdog pet GPIO pin number.
-#define WD_EXP_GIO_PORT_PIN         2U                                                              ///< Watchdog expired GPIO pin number.
+#define WD_EXP_GIO_PORT_PIN         0U                                                              ///< Watchdog expired GPIO pin number.
 #define LAMP_GRN_SPI5_PORT_MASK     0x00000200                                                      ///< Lamp green GPIO port mask (CLK(100) - re-purposed as output GPIO).
 #define LAMP_BLU_SPI5_PORT_MASK     0x00010000                                                      ///< Lamp blue GPIO port mask (SIMO[0](99) - re-purposed as output GPIO).
 #define LAMP_RED_SPI5_PORT_MASK     0x01000000                                                      ///< Lamp red GPIO port mask (SOMI[0](98) - re-purposed as output GPIO).