Proteus图：
Keil 51程序：
ORG 0000H
AJMP START
ORG 0100H
START:
MOV 30H, #2 //学号为 **********；
MOV 31H, #0
MOV 32H, #1
MOV 33H, #3
MOV 34H, #0
MOV 35H, #0
MOV 36H, #0
MOV 37H, #0
MOV 38H, #0
MOV 39H, #0
MOV 3AH, #10
MOV 3BH, #10
MOV 3CH, #10
LOOP:
MOV R5, #15
L1: ACALL XIANSHI
DJNZ R5, L1
ACALL DELL
AJMP LOOP
XIANSHI: MOV R0, #30H
MOV R1, #0FEH
MOV R2, #8
MOV DPTR, #LEDCODE
;显示函数
WWW:
MOV A, @R0
MOVC A, @A+DPTR
MOV P2, #0FFH
MOV P0, A
MOV P2, R1
ACALL DELAY
INC R0
MOV A, R1
RL A
MOV R1, A
DJNZ R2, WWW
RET
DELAY: ;延时函数
MOV R6, #13
WAR: MOV R7, #200
DJNZ R7, $
DJNZ R6, WAR
RET
DELL:
MOV 3DH, 30H
MOV 30H, 31H
MOV 31H, 32H
MOV 32H, 33H
MOV 33H, 34H
MOV 34H, 35H
MOV 35H, 36H
MOV 36H, 37H
MOV 37H, 38H
MOV 38H, 39H
MOV 39H, 3AH
MOV 3AH, 3BH
MOV 3BH, 3CH
MOV 3CH, 3DH
RET
LEDCODE: ;共阴数码管码表0 – 9 DB 3FH, 06H, 5bH, 4fH, 66H, 6dH, 7dH, 07H
DB 7fH, 6fH, 00H
END
和 不显示
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