ADC 0804 interfacing with 89c51

[Tushar Desai]

Im unable to interface adc 0804 with 89c51….plz help….can sum1 upload a valid code.

[jani jigar]

Hi tushar.. Here I am giving u simple codes, Hope that it’ll b useful 2 u.

 

RD BIT P2.5

WR BIT P2.6

INTR BIT P2.7

MYDATA EQU P1

MOV P1,#0FFH

SETB INTR

BACK: CLR WR

             SETB WR

HERE: JB INTR,HERE

           CLR RD

           MOV A,MYDATA

           ACALL CONVERSION  ; u have to make a conversion subroutine for hex to ascii conversion.

           ACALL DISPLAY             ; likewise … for display

           SETB RD

           SJMP BACK

 

 

 

Repl me whether it works or not.

[Author]

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