ADC multiplex with 4051

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  1. - 20th March 2010, 00:34 #7
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    aratti
    aratti is offline Senior Member
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    Your single loop for ADCin0 and 1 is not clear to me
    rmteo has forgotten to set portC. Just add the red line and it will work. (I sugget you to use a small delay)

    Code:
    for i = 8 to 23
PortC = i
Pause 1

  ADCIN 0, AD[i-8]
next i
    S0,S1,S2 are on RC0-RC2
    Enable of Mux 1 on RC4
    Enable of mux 2 on RC3
    Remember that as you have wired the system mux2 will start first (from 8 to 15) and then to follow mux1 will be activated (from 16 to 23). If you need them the other way around then swap the wiring of portC.3 & portC.4

    Al.
    Last edited by aratti; - 20th March 2010 at 00:46.
    All progress began with an idea
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