急求一个用8255,8253等芯片做一个交通灯实验(接线图+程序)

发布网友 发布时间：2022-05-01 18:58

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热心网友 时间：2022-06-21 13:50

51单片机外接8255A做成的交通灯程序及PROTEUS仿真结果（附对应C语言程序） CONTROL EQU 7FFFH
PORTA EQU 7FFCH
ORG 0
START: MOV DPTR,#7FFFH
MOV A,#80H
MOVX @DPTR,A
MOV DPTR,#7FFCH
MOV A,#0FFH
MOVX @DPTR,A
LOOP:
MOV A,#21H
MOV DPTR,#7FFCH
MOVX @DPTR,A ;东西红，南北绿
CALL DELAYLONG

MOV A,#11H
MOV DPTR,#7FFCH
MOVX @DPTR,A ;三次闪烁
CALL DELAYSHORT
MOV A,#01H
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
MOV A,#11H
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
MOV A,#01H
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
MOV A,#11H
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
MOV A,#01H
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT

MOV A,#0CH
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYLONG

MOV A,#0AH
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
MOV A,#08H
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
MOV A,#0AH
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
MOV A,#08H
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
MOV A,#0AH
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
MOV A,#08H
MOV DPTR,#7FFCH
MOVX @DPTR,A
CALL DELAYSHORT
AJMP LOOP

DELAYLONG: MOV R7,#40
L1: MOV R6,#200
L2: MOV R5,#250
DJNZ R5,$
DJNZ R6,L2
DJNZ R7,L1
RET
DELAYSHORT: MOV R4,#200
L3: MOV R3,#250
DJNZ R3,$
DJNZ R4,L3
RET
END
C语言发不上去

热心网友 时间：2022-06-21 13:50

我这个满足要求吗？

热心网友 时间：2022-06-21 13:51

年轻人别偷懒啊，该学的东西不能这么糊弄过去的！