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Forum Post: RE: custom Boot-loader for msp430f2274

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The communications is not RF, as the potted board will be buried under sand. Modulating (on/off) a 1MHz carrier on top of the DC power. Tether is coax. Low pass filter to block modulation from power pins. How is it possible to use uart over power pair without modulation (unless you are talking about something like the Dallas 1-wire approach)?

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