Index: firmware/App/Services/MsgQueues.h
===================================================================
diff -u -reff7b1575f008f81b29ef906f6346fac6012d3ab -r90f6438e80dbe0a32472a076a0d1bc54db65d15a
--- firmware/App/Services/MsgQueues.h	(.../MsgQueues.h)	(revision eff7b1575f008f81b29ef906f6346fac6012d3ab)
+++ firmware/App/Services/MsgQueues.h	(.../MsgQueues.h)	(revision 90f6438e80dbe0a32472a076a0d1bc54db65d15a)
@@ -21,7 +21,7 @@
 
 // ********** public definitions **********
 
-#define MAX_MSG_CARGO_SIZE          100         // bytes
+#define MAX_MSG_PAYLOAD_SIZE          100         // bytes
 
 typedef enum Msg_Queues
 {
@@ -33,13 +33,13 @@
 typedef struct
 {
     U16 msgID;                                  // ID of message
-    U08 cargoLen;                               // length of cargo in bytes
+    U08 payloadLen;                             // length of payload in bytes
 } MESSAGE_HEADER_T;
 
 typedef struct
 {
     MESSAGE_HEADER_T hdr;                       // message header
-    U08              cargo[MAX_MSG_CARGO_SIZE]; // message cargo
+    U08              payload[MAX_MSG_PAYLOAD_SIZE]; // message payload
 } MESSAGE_T;
 
 typedef struct