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TI Home » TI E2E Community » Support Forums » Digital Signal Processors (DSP) » C5000 Ultra Low Power DSP » C5000 Ultra Low Power DSP Forum » How can I get the measured value of Total Conversion Time on board?
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  • How can I get the measured value of Total Conversion Time on board?

    How can I get the measured value of Total Conversion Time on board?

    This question is answered
    Okayama Gou
    Posted by Okayama Gou
    on May 16 2012 01:44 AM
    Prodigy250 points

    Dear,

    Could someone give me your advise for following?

    Related posts:
    http://e2e.ti.com/support/dsp/tms320c5000_power-efficient_dsps/f/109/t/188803.aspx

      Device: TMS320VC5507ZHH

    I'd like to know how I can get the measured value of Total Conversion Time on board.
    Because, I can not get measured value that should be equal with calculated value of AD Conversion time.

      My question:
      I think ADCBUSY bit in ADCDATA Register becomes high while Sample and Hold process and Conversion process.
      In other words, ADCBUSY=1 during 46.6uS, Total conversion time, in case of following Figure.
      Am I right?

     

    Regards,
    Okayama

     

    ADC spru586 TMS320VC5507
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    • Steve Tsang
      Posted by Steve Tsang
      on May 17 2012 15:48 PM
      Verified Answer
      Verified by Okayama Gou
      Genius13315 points

      On page 9 of SPRU586B:
      After the conversion process completes, the ADCBUSY bit value changes from 1 to 0, indicating that the conversion data is available.

      So, yes, ADCBUSY = 1 for 46.5us. Switch to 0 on next clock cycle.

      Regards.

      -------------------------------------------------------------------------------------------------------

      Please click the Verify Answer button on this post if it answers your question

      --------------------------------------------------------------------------------------------------------

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