This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

problem in monitoring EOC of ADC 0809

I am interfacing ADc0809 with 8051 but dont know how to monitor the EOC of ADC so can anybody help me ....
i want to monitor EOC using assembly coding so how can i do it...?

Parents
  • What do you mean by, "press E8"?

    Do you mean you are sending "E8" to the MCU, it then interprets that as a hex value, and sends it to the DAC; the DAC output is connected to the ADC input; the MCU reads the result from the ADC, and sends it back to the PC - here you see "E9" on hypoterminal?

    If so, then you have just 1 LSB error there; ie, 1 part in 256 - or 0.4% error.

    Remember that you're dealing with an analogue signal here - so 0.4% error is actually pretty good!!

Reply
  • What do you mean by, "press E8"?

    Do you mean you are sending "E8" to the MCU, it then interprets that as a hex value, and sends it to the DAC; the DAC output is connected to the ADC input; the MCU reads the result from the ADC, and sends it back to the PC - here you see "E9" on hypoterminal?

    If so, then you have just 1 LSB error there; ie, 1 part in 256 - or 0.4% error.

    Remember that you're dealing with an analogue signal here - so 0.4% error is actually pretty good!!

Children