Fast / low resolution A/D conversion

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  1. - 7th April 2009, 09:37 #1
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    Hi, Andrew

    Such use of ADCs are explained in the PIC Datasheets relevant chapters and Midrange Manual.

    Good explanation also from the great " Bigonoff " ( a good asm teacher from Belgium ) - in French !

    see Part 2 $19.6 ...

    Alain
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  2. - 7th April 2009, 10:57 #2
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    Quote Originally Posted by Acetronics View Post
    Hi, Andrew

    Such use of ADCs are explained in the PIC Datasheets relevant chapters and Midrange Manual.

    Alain
    I couldn't find where to reduce the ADC resolution - can you be more explicit ?

    Andrew
  3. - 7th April 2009, 11:04 #3
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    You didn't search too much ...

    23.7.1 Faster Conversion - Lower Resolution Trade-off

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
  4. - 7th April 2009, 12:03 #4
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    Or perhaps not looking in the right place. It doesn't refer to it in the device datasheet but does in the midrange manual.

    It's a pity you can't just stop the conversion after a certain number of bits.

    Anyway, thanks for pointing me in the right direction.

    Andrew
  5. - 7th April 2009, 13:18 #5
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    Quote Originally Posted by AndrewC View Post
    It doesn't refer to it in the device datasheet
    aha ???

    To calculate the minimum acquisition time, TACQ, see
    the PICmicro® Mid-Range MCU Family Reference
    Manual (DS33023).
    from the 16F87xa Datasheet ...

    LOL ... Everything always in the Holy Datasheet plus PbP Manual ...

    Ok, lots of reading ... but always useful !!!

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
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