BM Dept., Govt. Engg. College, Gandhinagar Page 31
EXPERIMENT NO. 8
Aim: Interface seven segment display with Port P1. Write program to display number 0 to 9 on
the seven segment display. Use delay between two counts.
Program 1: Display Count value on seven segment display.
Circuit diagram:
Program:
ORG 00h
AJMP start
ORG 03h
RETI
start:
MOV P1,#00h ;Configure port 1 as output port
again: MOV DPTR,#CODE ;Initialize DPTR as a base address for code
next: CLR A
MOVC A,@A+DPTR ; Get seven segment code
JZ AGAIN
MOV P1,A ;Display count value
ACALL DELAY
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