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Recent content by edaudio2000

  1. E

    Calculating the (real) peak value of a set of points

    Sorry, I should have added that I want to write this as a function to an existing C program.
  2. E

    Calculating the (real) peak value of a set of points

    I have a stored discrete time series H(i). Typical values are: (descriptive only, the actual values are float): H[i]= 0,0,0,0,4,7,12,15,13,9,6,4,1,0,0,0,0,0,0,0 This corresponds to sampled ponts of a smooth waveform H(t) which has a generic raised cosine form. Amplitudes vary, but only the...
  3. E

    LPC2xxx (ARM) GPIO speed

    gpio speed I have an LPC2138 running at 60MHz. However, when I toggle the I/O pins repeatedly (using IOxSET,IOxCLR, or even IOPIN instructions), e.g. IO0SET = 0x01 IO0CLR = 0x01 IO0SET = 0x01 IO0CLR = 0x01 IO0SET = 0x01 IO0CLR = 0x01 IO0SET = 0x01 IO0CLR = 0x01 The port toggles only at about...
  4. E

    How does 2 sprinklers and 2 buckets generate sparks?

    Re: How does this work? Yes thanks. I understand about the nozzle friction creating charged particles. What I don't understand is how the cross arrangement of buckets and rings operates as a voltage multiplier!
  5. E

    How does 2 sprinklers and 2 buckets generate sparks?

    How does this work? Two sprinklers, two buckets connected together generating sparks! Doews anybody know how this works? **broken link removed** or **broken link removed** [/youtube]

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