?? 步進(jìn)電機(jī)模擬.asm
字號(hào):
ASTEP EQU 01H
BSTEP EQU 02H
CSTEP EQU 04H
DsTEP EQU 08H
DLY_C EQU 60H
org 0000h
ljmp start
org 0030h
START: MOV DLY_C,#10H
lJMP LOOP
LOOP: MOV A,#ASTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#ASTEP+BsTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#BsTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#BsTEP+CsTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#CSTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#CSTEP+DSTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#DSTEP
MOVX @DPTR,A
CALL DELAY
MOV A,#DSTEP+ASTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,DLY_C
DEC A
CJNE A,#1,NN1
INC A
NN1: MOV DLY_C,A
LJMP LOOP
LOOP1: MOV A,#ASTEP+BSTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#BSTEP+CSTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#CSTEP+DSTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#DSTEP+ASTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,DLY_C
DEC A
CJNE A,#2,NN2
INC A
NN2: MOV DLY_C,A
JMP LOOP1
LOOP2: MOV A,#DSTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#CSTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#BSTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,#ASTEP
CPL A
MOV P2,A
CALL DELAY
MOV A,DLY_C
CJNE A,#3,NN3
INC A
NN3: MOV DLY_C,A
JMP LOOP2
DELAY: MOV R6,DLY_C
DD1: MOV R5,68H
DD2: MOV R7,#0
DJNZ R7,$
DJNZ R5,DD2
DJNZ R6,DD1
RET
END?? 快捷鍵說(shuō)明
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