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单片机控制步进电机驱动器工作原理

时间:10-19 来源:电子产品世界 点击:

QUIT

  LOOP1: MOV P1,#090H

  MOV 20H,#04H

  MOV 21H,#20H

  AJMP QUIT

  LOOP2: MOV P1,#0B0H

  MOV 20H,#08H

  MOV 21H,#10H

  AJMP QUIT

  LOOP3: MOV P1,#030H

  MOV 20H,#10H

  MOV 21H,#08H

  AJMP QUIT

  LOOP4: MOV P1,#070H

  MOV 20H,#20H

  MOV 21H,#04H

  AJMP QUIT

  LOOP5: MOV P1,#060H

  MOV 20H,#40H

  MOV 21H,#02H

  AJMP QUIT

  LOOP6: MOV P1,#0E0H

  MOV 20H,#80H

  MOV 21H,#01H

  AJMP QUIT

  LOOP7: MOV P1,#0C0H

  MOV ; 20H,#01H

  MOV 21H,#80H

  AJMP QUIT

  ;***************电机反转*****************

  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

  4.结论

  该驱动器经实验验证能驱动0.5N.m的步进电机。将驱动部分的电阻、电容及续流二极管的有关参数加以调整,可驱动1.2N.m的步进电机。该驱动器电路简单可靠,结构紧凑,对于I/O口线与单片机资源紧张的系统来说特别适用。

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