dj0802.asm

四相电机驱动程序

     ORG 0000H
START:MOV A,#00H
      MOV DPTR,#2007H
      MOVX @DPTR,A
      MOV DPTR,#2006H
      MOVX @DPTR,A
      ACALL DELAY2
 main:MOV R1,#00H
   m0:mov r0,#00h
   M1:MOV DPTR,#0400H
      MOV A,R0
      ANL A,#07H
      MOVC A,@A+DPTR
      MOV DPTR,#2007H
      MOVX @DPTR,A
      MOV DPTR,#2006H
      MOVX @DPTR,A
      ACALL DELAY2      ;
      INC R0
      cjne r0,#00h,m1
      inc r1
      cjne r1,#08h,m0   ;最大=10h
      CLR P1.2
      SETB P1.2
      ACALL DELAY2
      MOV R1,#00H
  m2: mov r0,#00h
  m3: MOV DPTR,#0400H
      MOV A,R0
      ANL A,#07H
      MOVC A,@A+DPTR
      MOV DPTR,#2007H
      MOVX @DPTR,A
      MOV DPTR,#2006H
      MOVX @DPTR,A
      ACALL DELAY2      ;
      deC R0
      cjne r0,#00h,m3
      dec r1
      cjne r1,#0f8h,m2   ;*****最小=f0H
      CLR P1.2
      SETB P1.2
      ACALL DELAY2
      SJMP MAIN

DELAY1:mov r7,#00h
 ST1: nop
      DJNZ R7,ST1
      NOP
      RET
DELAY3:acall delay1    ;
      mov r7,#01h      ;
 ST3: CLR P1.2
      SETB P1.2
      DJNZ R7,ST3
      NOP
      RET

DELAY2:mov r6,#03h        ;电机带载02H时有位置卡,01h时堵转;03H时=800步/S=2圈/秒
 ST2: ACALL DELAY3
      nop
      DJNZ R6,ST2
      NOP
      RET
       ORG 0400H
DB 01H,03H,02H,06H,04H,0CH,08H,09H
 DB 0EH,0CH,0DH,09H,0BH,03H,07H,06H    ;与输出反相
      end