ADC0808 Interfacing with 89C51- Problem

[Harshad]

I have used the circuit from EG and also used the same code but still i am not able to get the data from ADC.

 

I have Used this :- http://www.engineersgarage.com/microcontroller/8051projects/interface-ADC0808-using-clock-AT89C51-circuit

 

Now in code while i was doing debug i come to know that Once EOC goes Low it reamins Low

 while(eoc==0);

Any Suggestion Please.

[nikhiljain]

Hey check your circuit diagram…This ADC is a bit complex. Also try other codes of ADC0808 given on the site..

[Qaisar]

hi 

 

 no problem with code ..

 i simulate it on proteus ..

its working  diagram  given below ..

 try it ..

 

regards

[Qaisar]

wysiwyg_imageupload:2898:

[Harshad]

I have checked the Hardware it’s as per given in the link. My CPU is AT89C51 and working on 11.0592Mhz Crystal. Is that Fine na.

[Author]

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