Index: firmware/App/Drivers/Comm.c
===================================================================
diff -u -r52863cba9685f31136ab3f4b4764a17ccf34fc05 -rf7e3018ec6ab762fe08efb42b21fb2ca970174b0
--- firmware/App/Drivers/Comm.c	(.../Comm.c)	(revision 52863cba9685f31136ab3f4b4764a17ccf34fc05)
+++ firmware/App/Drivers/Comm.c	(.../Comm.c)	(revision f7e3018ec6ab762fe08efb42b21fb2ca970174b0)
@@ -26,8 +26,8 @@
 
 // ********** private data **********
 
-static BOOL canXmitsInProgress = FALSE;
-static BOOL uartXmitsInProgress = FALSE;
+static volatile BOOL canXmitsInProgress = FALSE;
+static volatile BOOL uartXmitsInProgress = FALSE;
 
 /*************************************************************************
  * @brief signalCANXmitsInitiated