• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 53 subscribers
  • Views 477 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

RTA CPU Load invalid

d200guy
Intellectual 555 points

Other Parts Discussed in Thread: TMS320C28346

DSP: TMS320C28346

PC: Windows XP

IDE: Code Composer 4.1.2

BIOS: 5.41

Problem: I started noticing that the CPU Load graph doesn't display a plot, even though the time axis keeps moving.  When I look at the CPU Load Data, rows are streaming (so I don't think my CPU is fully loaded).  Each row says cpuTime=0, total=0, and load ~= 570000.  I assume the load value should be a percentage, so this must be wrong.  Can anyone suggest a cause for my CPU Load measurement problem?

Thanks in advance!

  • 0
    Intellectual 555 points

    Well, I kept dorking around with this issue and finally discovered a "workaround":

    I changed:

    bios.CLK.MICROSECONDS = 10000.0000;

    to:

    bios.CLK.MICROSECONDS = 1000.0000;

    And suddently the plot is back.  It shows about 17% utilization, so again I can confirm that my CPU is not overloaded.

    At this point in my design, I don't have a strong need to slow the system clock from 1 kHz to 100 Hz, but it just felt like the right thing to do to keep my utilization low since I don't need that high resolution on the system clock for any of my tasks.  Can anyone suggest a workaround for the CPU Load data problem without speeding my system clock above 100 Hz?

    Thanks again in advance!

  • 0 in reply to d200guy
    Intellectual 555 points

    I think this must be a problem with RTA.  Is there some better place to submit a bug report for RTA?