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The statements under IF(condition) is shown as excecuted even if the condition is not met !

sunil hs
Intellectual 525 points
Other Parts Discussed in Thread: TMS320F28335

Hi,

i am using sys/bios 5.2 (shipped in CCS 5.2) for my project.And TMS320F28335 DCS for the same.

I CLEAN build my project,and DEBUG it. I reset the CPU ,RESTART, RESUME the excecution.And put a break point in my desired location.Here The statements under IF(condition) is shown as excecuted even if the condition is not met !!.

on that these were the findings i got.....

findings:

       Though the condition was NOT TRUE,the execution statements within that IF were SEEN to be executing.But the good thing is, functionalities were not happening.

For example if a variable is assigned with constant ,it was not assigning,but showing it was been excecuted in IDE. when i look into DISASSEMBLY that also showed me excecuting properly.

Tanks & Regards,

Sunil



  • 0
    TI__Mastermind 26780 points

    Sunil,

    I think what you are seeing is that CCS is having difficulty showing the corresponding C code for each assembly step of the CPU.  This can happen when stepping through code that has been optimized by the compiler.  When this happens I usually just watch the disassembly view.  If you want to see fully clean C language stepping I think you’ll need to disable optimizations for the build.

    There are some instructions on this thread for building for debug and turning off optimizations: http://e2e.ti.com/support/embedded/bios/f/355/p/210932/747419.aspx#747419  

    These instructions are for a different processor and application, but you should be able to follow similar steps to get better C-level debug for yours.

    Scott

  • 0 in reply to ScottG
    Intellectual 525 points

    hi,

    sorry for the late reply.

    The optimization is not at all performed for our project. I have the screen shot of the same, which is uploaded.please do have a look.

    Thanks & regards,

    Sunil

  • 0 in reply to sunil hs
    TI__Mastermind 26780 points

    Sunil,

    Have you set the SYS/BIOS library type to debug as shown in that other thread?

    Also, can you clarify what code you are seeing mismatch in C debug view versus assembly?  Is it your application code, or within SYS/BIOS code?

    Can you include a screenshot showing an example?

    Thanks,
    Scott

  • 0 in reply to ScottG
    Intellectual 525 points

    hi,

    thanks for the reply, i ill forwrd it.

    regards,

    SUNIL