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CCS 6.0.1 GUI does not display a sine-wave continuously

Ingrid Miriam Kepehai
Prodigy 90 points


Hi,

I'm presently using 6713 dsk starter kit with CCS v6.0.1 in Windows 7 OS. 

I created a GUI application to display some target variable. The input data from a audio source (1khz sine wave tone) are buffered in a target variable before running through the DSP and should be display in the graph (named Input in my project). But the problem is the displayed sine-wave in the graph is discontinuous. It seems like the buffered data are read periodically. The output signal is displayed uninterruptible.

Find below the the Input an Output result after running the program:

Results.docx

I post this question previously on C67x Single Core DSP Forum and a Guru makes the following Suggestion:

"You can ask on the Code Composer forum about methods to use for handshaking between the DSP and the GUI application."

Thank you in advance for your help

Kind regards,

  • Guru 192875 points

    Hi,

    Ingrid Miriam Kepehai said:
    But the problem is the displayed sine-wave in the graph is discontinuous. It seems like the buffered data are read periodically. The output signal is displayed uninterruptible.

    Offcourse it would be discontinuous as the refresh rate of your variable and GUI are not same and cannot be same in your case. The GUI graph update rate can be as less as 500ms and nothing less than that. Anything less than that would exclude values accordingly.

    Regards,

    Gautam