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DSK C6713 basic IN/OUT project using CCS-v3.3

Ahmed Hilal
Prodigy 60 points


Hello,

I was trying to test Rulph Chassaing book example:(loop_intr), which simply takes the input signal from the LINE IN and write it again to LINE OUT.

The attached document is the project folder, contains the C source file and other needed files.

Now the problem is that no output is observed at all !! 

Can any body help me??


Help is URGENTLY needed.


  


 

loop_intr.rar
  • 0
    Prodigy 60 points

    Nobody can help me ??!! 

  • 0
    TI__Expert 8890 points

    Ahmed,

    Have you attempted to debug this application in CCS?  It would be helpful to step through the application to see where the problem first appears.  I suggest checking the data samples immediately after they enter the system (i.e. before any processing) to make sure that they look OK.  If not, then the problem is likely related to your peripheral setup.

  • 0 in reply to Joe Coombs
    Prodigy 60 points

    Joe Coombs, 

    Yes I already did, but it seems that it does not read anything nor write, I already did not write it my self I just copy it from the Book CD ! so I think is that nothing to do with software.

    Do I have to do something with Hardware ? (i.e. enable something) 

  • 0 in reply to Ahmed Hilal
    TI__Expert 8890 points

    Ahmed,

    I'm not familiar with this application, but I am taking a look at it now and have a few debugging suggestions:

    1. If you step through the mcbsp0_init() function, can you see that the correct values appear in the McBSP registers?  I want to verify that the peripheral is being powered on and configured.
    2. If you put a breakpoint in the ISR, c_int11(), does your application ever get there?  If not, this would indicate that the interrupt is not firing.
    3. Does the application rely on a GEL file to initialize the DSP?  If so, using the wrong GEL file (or not using and GEL file) could mean that one or more peripherals are not setup properly when you run the application.

    Hope this helps.

  • 0 in reply to Joe Coombs
    Prodigy 60 points

    done 

    I just changed c6xdskinit.c to c6713dskinit.c