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CCSv6.1: DataLogger not updating CCS graph tool.

stevenh
Guru 19935 points

Hello,

I am having issues (graph is not updated and not all data is plotted) using the motor control Datalogger module to plot integer values (not normalized values) on the CCSv6 graph tool. 

I done several things to try and get it to work, i.e removing calls to the S1 and S2 triggers from the assembly file (Util_DLOG4CHC.asm)  and also removing the skip part.  What exactly is the skip part anyways?

It worked a little better for each change, however, it still doesn't update the graph when a value changes.

Any suggestions? 

Stephen

  • 0
    Guru 192875 points

    Hi Stevenh,

    I hope you know the fact that Graph update rate is slower ie around 500ms-1s. If your variable update rate is faster than this then the graph will tend to miss these values. Hence, you can see intermediate values getting plot on the graph.

    Regards,
    Gautam

  • 0 in reply to Gautam Iyer
    Guru 19935 points

    Hello Gautam,

    I don't think it was updating no matter how much time I waited.  Is there a way to change the update rate?

    Stephen

  • 0
    TI__Guru**** 168357 points

    Stephen,

    Just adding to Gautam's reply. Check below some old discussions about similar scenarios that may be helpful to your case:

    - Buffering
    - Double buffering
    - Real time mode

    There is also an issue reported that was never fully explained (check here) that may also be useful to keep as a reference.

    stevenh said:
    What exactly is the skip part anyways?

    Unfortunately I am not familiar with the code you are using. Is this a software library or example code? If so, I would also check for suggestions on the device forum, given the apps engineers there are the ones that create these software libraries.

    Hope this helps,

    Rafael

  • 0 in reply to desouza
    Guru 19935 points

    Hello Rafael,

    Thanks for the information.  I've been busy.  The  link was a good one.

    Thanks,

    Stephen