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CCDC/ISP usage adversely affects DSP performance?

CoolAJ86
Intellectual 680 points
Other Parts Discussed in Thread: OMAP3530

As I understand it the ISP functions are part of the DSP. Is that correct?

I'm using the CCDC to capture raw data which deserves no pre-processing whatsoever from the DSP.

We just recently got our new prototype working (ported from the DM6446) and found that the processing is taking 4 times longer with the OMAP3530. If this is due to the ISP, then we need to turn off the ISP completely in order for our code to run real-time.

Any thoughts?

  • 0
    TI__Intellectual 1280 points

    CoolAJ,

    The camera ISP is not part of DSP subsystem block which is not to be confused with Image and Video Accelerator, IVA2.2 Subsystem, in OMAP3530 which is.  The Video Processing Front End (CCDC) on OMAP35xx is part of the ISP block.  I am not sure right off what is causing your processing to take 4x longer on 35xx based on your input above but I am curious if you were using the separate video/imaging co-processor on DM6446 for data capture/processing before porting to OMAP platform.