标题: 求助!用8051与8155做一个8个LED灯间隔闪烁切换依次点亮程序 [打印本页]

作者: ppdddl    时间: 2009-7-5 08:10
标题: 求助!用8051与8155做一个8个LED灯间隔闪烁切换依次点亮程序
求助!用8051与8155做一个8个LED灯间隔闪烁切换依次点亮程序,不要用C语言!
首先间隔闪烁12秒,然后12秒过后自动切换到依次点亮LED灯25秒,然后再变回12秒的间隔闪烁,这样循环下去!
谢谢各位高手帮小弟这个忙

作者: nishibeitina    时间: 2009-7-5 21:31

START:   MOV        R0,#12
              MOV        A,#00H
LOOP:     MOV        P1,A
              ACALL     DELAY
              CPL         A
             DJNZ       R0,LOOP
             MOV        R1,#3 
LOOP1:  MOV        R3,#00H
LOOP2:  MOV        A,R3
             MOV       DPTR,#TABLE
             MOVC     A,@A+DPTR
             CJNE      A,#00H,LOOP3
             DJNZ     R1,LOOP1
             JMP        START
LOOP3:   MOV       P1,A
             ACALL    DELAY
             INC        R3 
             JMP        LOOP2
             RET
DELAY:  MOV       R5,#50
D1:       MOV       R6,#100
D2:       MOV       R7,#100
            DJNZ      R7,$
            DJNZ      R6,D2
            DJNZ      R5,D1
            RET
TABLE: DB         7FH,3FH,1FH,0FH,07H,03H,01H
           DB          00H
           END
              
            


作者: nishibeitina    时间: 2009-7-6 07:38

START:   MOV        R0,#12
              MOV        A,#00H
LOOP:     MOV        P1,A
              ACALL     DELAY
              CPL         A
             DJNZ       R0,LOOP
             MOV        R1,#3 
LOOP1:  MOV        R3,#00H
LOOP2:  MOV        A,R3
             MOV       DPTR,#TABLE
             MOVC     A,@A+DPTR
             CJNE      A,#02H,LOOP3
             DJNZ     R1,LOOP1
             JMP        START
LOOP3:   MOV       P1,A
             ACALL    DELAY
             INC        R3 
             JMP        LOOP2
             RET
DELAY:  MOV       R5,#50
D1:       MOV       R6,#100
D2:       MOV       R7,#100
            DJNZ      R7,$
            DJNZ      R6,D2
            DJNZ      R5,D1
            RET
TABLE: DB         7FH,3FH,1FH,0FH,07H,03H,01H,00H
           DB          02H
           END


作者: nishibeitina    时间: 2009-7-6 07:57
前面那个有点不行




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