minimising 18F basic operational current!


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  1. #1
    Join Date
    Feb 2006
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    Default Re: minimising 18F basic operational current!

    Hi Jimbo,

    pause does not put the chip in any kind of sleep state. It is busy counting. And from page 520 of the data sheet, it says at 48 mhz, the chip will use 19.5 ma. So, at 24 mhz, it should use half that, which is equal to about what you are seeing. To use minimal power put it in a sleep mode for as long as you can, and just do periodic work with the chip awake.
    http://www.scalerobotics.com

  2. #2
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    Sep 2009
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    Default Re: minimising 18F basic operational current!

    Hi there,

    Spot on, and many thanks for your help! I used the internal osc, turned off PLL etc and got it to a couple of mA in the end. One final issue now which I'll start a new thread for... SD cards!!!

    Best regards

    Jimbo
    Last edited by jimbostlawrence; - 16th August 2012 at 09:42.

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