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ccs 6.1.3 debug screen changes variables when switching view

Warwick Leahy1
Prodigy 180 points


Hi,

So this is a strange one but when debugging a tiva c launchpad I was having a strange issue with a variable seeming to go negative.  When I started thoroughly testing it I noticed a strange phenomenon.  I'm watching a variable in the expression window which does not change during the entire execution.  However as soon as I move to another window say registers or variables, when I switch back the variable has suddenly become a very large negative number.

This is the view before changing:

This is what happens after I switch to Registers and back again:

Any thoughts on this one and why it could happen?  It's a real pain when you are wondering why your program doesn't seem to be working.

Thanks

Warwick

  • TI__Guru**** 173310 points

    Warwick Leahy1 said:
    I'm watching a variable in the expression window which does not change during the entire execution.  However as soon as I move to another window say registers or variables, when I switch back the variable has suddenly become a very large negative number.

    Is the program halted or still executing when you switch to the registers view and back to expressions view? If it is halted I would not expect the value to change, but if it is executing then the value will be updated when you switch back to the view. 

    Are you able to share a simple example project that demonstrates the issue?