dongtaishumaguan.asm

动态数码管显示技术.通过c51编程控制数码管的动态显示

;动态数码管显示0--7数字，P0口接段码，P2口接位选码
			ORG 00H
START:		MOV DPTR,#TABLE1
DIR:		MOV R0,#00H
			MOV R1,#0FEH
NEXT:		MOV A,R0
			MOVC A,@A+DPTR
			MOV P0,A
			MOV A,R1
			MOV P2,A
			LCALL DAY
			INC R0
			RL A
			MOV R1,A
			CJNE R0,#08H,NEXT
			SJMP START
DAY:		MOV R6,#4
D1:			MOV R7,#248
			DJNZ R7,$
			DJNZ R6,D1
			RET
TABLE1: DB        03FH;0
        DB        006H;1
        DB        05BH;2
        DB        04FH;3
        DB        066H;4
        DB        06DH;5
        DB        07DH;6
        DB        007H;7
        DB        07FH;8
        DB        06FH;9

			END