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Type: Posts; User: Charles Linquis; Keyword(s):

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  1. Replies
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    9,178

    You mean that you weren't concerned with the...

    You mean that you weren't concerned with the analog level of the signal at all? Only its duration?
  2. Replies
    11
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    9,178

    An analog sensor that pulses high to low? I...

    An analog sensor that pulses high to low? I don't understand. What sensor are you using.
  3. Replies
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    9,178

    If your value goes to zero, there is something...

    If your value goes to zero, there is something more wrong than a little noise. I have found some chips that don't work properly with ADCIN (18F2221 for example).

    Try the following:


    ...
  4. Replies
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    9,178

    Do you have PORTA set up as inputs? Do you have...

    Do you have PORTA set up as inputs?
    Do you have them set up for analog?
    What are you using for your reference (ADCON1) ? Most of the time, Vcc is not good enough.
    If you want really good...
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