Program to display 1 on display 0 and 4 on display 1.
ORG 0H
AGAIN :
SETB P0.2 ; enable CS
CLR P0.1
CLR P0.0 ; enable display 0
MOV P1, #00000110B ; put pattern for 1 on display
CALL DELAY
SETB P0.0 ; enable display 0
MOV P1, #00101110B ; put pattern for 4 on display
CALL DELAY
JMP AGAIN ; jump back to start
; a crude delay
DELAY:
MOV R0, #200
DJNZ R0, $
RET
END
Related topics:
8051 External Program Memory Interfacing | 8051 External Data Memory Interfacing | 8051 Memory Mapped IO | 8051 LED Interfacing | 8051 Switch Interfacing | 8051 Keyboard Interfacing | 8051 LCD Interfacing | 8051 ADC Interfacing | 8051 DAC Interfacing | 8051 Relay Interfacing | 8051 Sensor Interfacing | 8051 Stepper Motor Interfacing | 8051 DC Motor Interfacing
List of topics: 8051
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