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You are here: Home / Topics / How to interface ADC0808 using clock from 8051 microcontroller (AT89C51)

How to interface ADC0808 using clock from 8051 microcontroller (AT89C51)

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Microcontroller › 8051 › How to interface ADC0808 using clock from 8051 microcontroller (AT89C51)

  • This topic has 1 reply, 2 voices, and was last updated 11 years, 5 months ago by dagakshay.
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  • March 10, 2011 at 4:39 pm #786
    jayanth
    Participant

    I have connected my adc0808 with at89c52 via 2 D flipflops… I wanted to provide the Vref voltage as an input to the adc . I have connected a pot to the Vref so that I can change the Vref value. I wanted to know what changes i have to make in the program and which channels to select?I have programmed in asm 

    March 11, 2011 at 5:19 am #5706
    dagakshay
    Participant

    Vref is just a referance voltage… is i make Vref as 3 volt then my adc will calibarated b/w 0 to 3 volt…
    you canuse any channel… just go to the links:

    how to use adc 0808…
    http://www.engineersgarage.com/microcontroller/8051projects/interface-LDR-ADC0808-interrupt-clock-AT89C51-circuit

    might be helpful for you since you wanted top design asm code…
    http://www.engineersgarage.com/forums/8051/c-code-assembly-code 

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