Multiplex 7seg. display with 8051

Thread Starter

bubu159

Joined Jan 30, 2008
2
Please how can I programming multiplex 7seg. display with 8051 microcontroller.
Do you have any example programm? (I need it an assembler)
Thanks a lot.
 

Colin Mac

Joined Mar 11, 2008
18
Rich (BB code):
ORG 0H

MAIN:
MOV P0,#13H   
CALL DELAY                 
MOV P0,#17H   
CALL DELAY   
MOV P0,#40H 
CALL DELAY   
MOV P0,#32H  
CALL DELAY   
JMP MAIN                   

;20ms delay
DELAY:
MOV TMOD,#01H    
MOV TL0,#0DFH   
MOV TH0,#0B1H   
SETB TR0     
STOP:
JNB TF0,STOP       
CLR TF0    
CLR TR0                     
RET      
END
Like this, change it to suit your set up.
 
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