单片机流水灯程序设计,p1.0和p1.7一起点亮,然后是p1.1和p1.6...要用汇编语言的
程序内要有DB ‘81H42H24H18H24H42H81H✀
推荐回答(4个)
知道最简单的那种
org 0000h
START:clr P1.0
CLR P1.7
ACALL DELAY
SETB P1.0
SETB 1.7
clr P1.1
CLR P1.6
ACALL DELAY
SETB P1.1
SETB 1.6
clr P1.2
CLR P1.5
ACALL DELAY
SETB P1.2
SETB 1.5
clr P1.3
CLR P1.4
ACALL DELAY
SETB P1.3
SETB 1.4
SJMP START
DELAY:MOV R3,#0FFH
DEL2:R4。,#0FFH
DEL1:NOP
DJNZ R4,DEL1
DJNZ R3,DEL2
RET
END
估计还有一种简单的
现在还不会
ORG 00H
START: MOV DPTR,#TABLE ; 将表的地址存入数据指针
LOOP: CLR A
MOVC A,@A+DPTR ;到数据指针所指的地址取码
CJNE A,#01,LOOP1 ; 取出的码是否01H?否则跳到LOOP1
JMP START
LOOP1: MOV P1,A ;取出的值输出到P1端口
MOV R3,#20 ;用于改变延时长度
CALL DELAY
INC DPTR
JMP LOOP
DELAY: MOV R4,#20
D1: MOV R5,#248
DJNZ R5,$
DJNZ R4,D1
DJNZ R3,DELAY
RET
TABLE: DB 0FEH,0FDH,0FBH,0F7H ;左移
DB 0EFH,0DFH,0BFH,7FH
DB 0FEH,0FDH,0FBH,0F7H ;左移
DB 0EFH,0DFH,0BFH,7FH
DB 7FH,0BFH,0DFH,0EFH ;右移
DB 0F7H,0FBH,0FDH,0FEH
DB 7FH,0BFH,0DFH,0EFH ;右移
DB 0F7H,0FBH,0FDH,0FEH
DB 00H,0FFH,00H,0FFH ;闪烁
DB 01H ;结束码
END
用查表法。
LOOP0:
MOV R0,#00
LOOP1: MOV A,R0
MOV DPTR,#TAB
MOVC A,@A+DPTR
; CPL A ;如果是低电平亮就要取反。高电平亮不需要
MOV P1,A
ACALL DELAY
INC R0
CJNE R0,#7,LOOP1
AJMP LOOP0
TAB: DB 81H,42H,24H,18H,24H,42H,81H
1等于亮
MOV P0,#00
SETB P1.0
SETB P1.7
ACALL DEY1MS 延时一秒
CLR P1.0
CLR P1.7
SETB P1.1
SETB P1.6
ACALL DEY1MS 延时一秒
RET
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