Stop the pic working

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  1. - 4th July 2007, 00:48 #1
    sgufa's Avatar
    sgufa
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    Default Stop the pic working

    How to stop the pic working when 1 input goes high? And how to make it resume when the same imput goes low? Please help me...
  2. - 4th July 2007, 04:44 #2
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    Post Stop and Go....

    Hi sgufa,
    Quote Originally Posted by sgufa View Post
    How to stop the pic working when 1 input goes high? And how to make it resume when the same imput goes low? Please help me...
    You could try the sleep command. Don’t forget the watchdog timer, make sure it is turned on.

    Wake up little PIC!
    http://www.picbasic.co.uk/forum/showthread.php?t=6377

    Permanent sleep
    http://www.picbasic.co.uk/forum/showthread.php?t=3128

    Try searching the forum for sleep.

    Hope that helps,
    -Adam-
    Ohm it's not just a good idea... it's the LAW !
  3. - 4th July 2007, 07:03 #3
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    Default

    You've not specified the reasons why the PIC should be stopped (or indeed your definition of 'Stop', or how quickly it should happen, or the state of the PIC when it is stopped), so to experiment, why not simply start with...

    Code:
    	LED var PortB.1
	StopPin var PortB.0

	TRISB=%00000001

Loop:	Toggle LED
	Pause 500
	While StopPin=1:Wend
	Goto Loop
  4. - 6th July 2007, 19:06 #4
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    many thanks melanie but i've just did the same. In that way the pic is always ON. I'd want to put the pic in low power mode when the input goes high and then, when the input returns low, wake up the pic in order to resume his work
  5. - 6th July 2007, 19:10 #5
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    Default

    @ SLEEP

    will do the job.

    Now depending the PIC you're using, you need to be check which i/o can wake the PIC.
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.
  6. - 7th July 2007, 04:09 #6
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    i'm using 16f628a

    can you make me an example for the sleep?
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