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You are here: Home / Topics / how to speed up ADC of atmega16l

how to speed up ADC of atmega16l

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Microcontroller › AVR › how to speed up ADC of atmega16l

  • This topic has 4 replies, 5 voices, and was last updated 12 years, 1 month ago by AJISH ALFRED.
Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
    Posts
  • June 1, 2011 at 1:49 pm #970
    bilal
    Participant

    hi,

    i am using ADC of atmega16l. i am communicationg the converted digital data via serial cable, but its bit slow. can any one suggest things and techniques to speed up the ADC???

    June 3, 2011 at 6:09 am #6321
    dagakshay
    Participant

    instead of precaler use timers in auto triggering mode… sorry i don’t know exactaly how to do that….

    June 7, 2011 at 7:59 am #6331
    Amit Joshi
    Participant

    Prescaler is best way to speed up your ADC. Apart from that auto-triggering can be used. The advantage of auto-triggering is that there is no need to set ADSC bit again and again. Autotirigger mode activate the convsersion automatically. To learn this you can follow the link

     

     

    http://www.engineersgarage.com/embedded/avr-microcontroller-projects/adc-internal-software-interrupts-circuit

    June 10, 2013 at 8:42 am #9932
    Shrikant
    Participant

    there is always a maximum working frequency of the inbuilt adc..It is generally mentioned in the datasheets..!

    usig prescalars you can get the frequncy high but inside the maximum frequency..

    However, if you increase the frequency , the accuracy of the conversion decreases..so if you really want a fast adc, get an external one

    June 10, 2013 at 1:21 pm #9938
    AJISH ALFRED
    Participant

    Hi Bilal,

    Please post your code also.

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