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VDD Jumper on Prop Demo Board — Parallax Forums

VDD Jumper on Prop Demo Board

iQuitiQuit Posts: 78
edited 2010-04-06 03:38 in Propeller 1
Can anyone tell me how the jumper is used? I think it is used to disconnect power to the chip? Whenever I remove/replace it the Prop cycles--like
pressing the reset button.

Thanks for knowing more than I do smilewinkgrin.gif

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"She may not be very pretty now, but she was somebody's baby once." Bugs Bunny

Comments

  • iQuitiQuit Posts: 78
    edited 2010-04-06 01:32
    Well, I just figured it out. I found the Demo board schematic, and vuala! (not sure if that's how you spell Vuala!) idea.gif

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    "She may not be very pretty now, but she was somebody's baby once." Bugs Bunny
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2010-04-06 02:20
    It's for measuring Idd. Just pull the jumper and connect a milliammeter in its place.

    BTW, it's voil
  • iQuitiQuit Posts: 78
    edited 2010-04-06 03:07
    Sweet. Thanks for the information.
    Hmm, makes me think... place a Resistor across the terminals, connect an ADC, and have the Prop measure its own Idd? nono.gif

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    "She may not be very pretty now, but she was somebody's baby once." Bugs Bunny
  • Roger LeeRoger Lee Posts: 339
    edited 2010-04-06 03:38
    Interesting what you can miss.

    Did not know, or forgot, there was a jumper on the prop. demo board.
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