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How to use DAP (TMS570 device) in GUI composer?

Haixiao Weng
Genius 13810 points

Other Parts Discussed in Thread: MOTORWARE

I built a GUI composer project, when I run it, I found that it slows down the CPU (TMS570 ARM cortex R4) response. (I toggle the LED using real time interrupts. Once GUI composer is running, I can see the LED toggling rate changes).

I think it is due to the CPU time used for exchanging data throught the debug port.

But this is not a problem in the motorware gui composer project (built in gui composer 1.6, not compatiable with today's version in CCS5.5). I remember that, in the motorware project, we use DAP to exchange data.

So, my quesiton is: How to use DAP to exchange the data in GUI composer (built in CCS5.5)?

Thanks,

Haixiao

  • 0
    TI__Genius 16650 points

    Hi Haixiao,

    In the past, we uses the DAP as a workaround where the driver doesn't support reading/writing memory while the target is running. Now that the driver natively supports reading/writing through the DAP, we have removed this workaround in GUIComposer.

    As far as I know, the performance for GUIComposer is no difference than CCS. You should be able to reproduce the slowless by entering the variables in the Variables view and enable continuous refresh.

    Take a look at the appInitScript.js file in your GUI app, see if you have this line "session.options.setBoolean("UseLegacyStopMode", true);". You might want to comment it out if your target supports realtime access.

    Regards,
    Patrick 

  • 0 in reply to Patrick Chuong
    TI__Genius 13810 points

    session.options.setBoolean("UseLegacyStopMode", true);". is the rootcause.

    Thanks,

    Haixiao