主题:各位大哥大姐帮帮我,这程序怎么看都不明白的,
下面是实验程序:
org 0000h
ajmp loop1
org 0010h
;==== 马达正转 ====
loop1:
MOV P2,#00110011B
ACALL DELAY
MOV P2,#11000011B
ACALL DELAY
MOV P2,#11001100B
ACALL DELAY
MOV P2,#00111100B
ACALL DELAY
JMP loop1
;==== 马达反转 ====
loop2:
MOV P2,#00111100B
ACALL DELAY
MOV P2,#11001100B
ACALL DELAY
MOV P2,#11000011B
ACALL DELAY
MOV P2,#00110011B
ACALL DELAY
JMP loop2
;==== 延迟程序 ====
delay:
MOV R6,#25
DL1: MOV R7,#255
DL2: DJNZ R7,DL2
DJNZ R6,DL1
RET