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Regarding the demo board — Parallax Forums

Regarding the demo board

GManGMan Posts: 19
edited 2006-07-24 16:30 in Propeller 1
Quick question, what's the jumper used for that's located next to the breadboard socket on the propeller demo board?

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2006-07-24 15:27
    It connects the 3.3V Vdd lines on the board to the 3.3V regulator. If you want to get your 3.3V from some other source, you can take off the jumper.
  • GManGMan Posts: 19
    edited 2006-07-24 15:32
    Ah, thanks... That makes sense. It would be nice if the board shipped with some sort of documentation. Is there documentation that would mention this available online somewhere that I missed?
  • cgraceycgracey Posts: 14,133
    edited 2006-07-24 16:30
    You can also remove the jumper and measure the current across the pins. This way, you can check how much power you're consuming in various modes (ie 1 COG, 2 COGs, slow rc oscillator, etc).
    Mike Green said...
    It connects the 3.3V Vdd lines on the board to the 3.3V regulator. If you want to get your 3.3V from some other source, you can take off the jumper.
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    Chip Gracey
    Parallax, Inc.
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