作业帮急求单片机控制步进电机加减速/正反转的汇编程序
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急求单片机控制步进电机加减速/正反转的汇编程序
急求单片机控制步进电机加减速/正反转的汇编程序
急求单片机控制步进电机加减速/正反转的汇编程序
MOV 20H,#00H ;20H单元置初值,电机正转位置指针
MOV 21H,#00H ;21H单元置初值,电机反转位置指针
MOV P1,#0C0H ;P1口置初值,防止电机上电短路
MOV TMOD,#60H ;T1计数器置初值,开中断
MOV TL1,#0FFH
MOV TH1,#0FFH
SETB ET1
SETB EA
SETB TR1
SJMP $
;
FAN:JB 08H,LOOQ0
JB 09H,LOOQ1
JB 0AH,LOOQ2
JB 0BH,LOOQ3
JB 0CH,LOOQ4
JB 0DH,LOOQ5
JB 0EH,LOOQ6
JB 0FH,LOOQ7
LOOQ0:MOV P1,#0A0H
MOV 21H,#02H
MOV 20H,#40H
AJMP QUIT
LOOQ1:MOV P1,#0E0H
MOV 21H,#04H
MOV 20H,#20H
AJMP QUIT
LOOQ2:MOV P1,#0C0H
MOV 21H,#08H
MOV 20H,#10H
AJMP QUIT
LOOQ3:MOV P1,#0D0H
MOV 21H,#10H
MOV 20H,#08H
AJMP QUIT
LOOQ4:MOV P1,#050H
MOV 21H,#20H
MOV 20H,#04H
AJMP QUIT
LOOQ5:MOV P1,#070H
MOV 21H,#40H
MOV 20H,#02H
AJMP QUIT
LOOQ6:MOV P1,#030H
MOV 21H,#80H
MOV 20H,#01H
AJMP QUIT
LOOQ7:MOV P1,#0B0H
MOV 21H,#01H
MOV 20H,#80H
QUIT:RETI END