How to set DATA breakpoint/Watchpoint in CCSv5.4 + Ti814x

Hi ,

I am using CCSv5.4 in windows .

My hardware :Ti814x

In my application ,one variable value is getting corrupted by some other thread .

I want to find out the where it is going to be corrupted means when somebody is modifying this variable .

I am checking the function call stack but I am not getting the function from where it got corrupted .

Here ,I want to put explicit breakpoint to understand who is trying to modify the variable value ..

How can I put DATA breakpoint/Watchpoint  at this location ...

-Studinstru