pwm.a

pwm,pwm,pwm,pwm,pwm,pwm,pwm,pwm,pwm,发生器pwm,pwm,pwm,pwm,,发生器pwm,pwm,pwm,pwm,

      ORG  0000H
      MOV  DPTR,#TAB
MAIN: CLR  P1.0
      MOV  R1,#01H
      MOV  R7,#20
LOOP: MOV  A,R1
      MOVC A,@A+DPTR
      MOV  TL0,A
      INC  R1
      MOV  A,R1
      MOVC A,@A+DPTR
      MOV  TH0,A
      INC  R1
      SETB TR0
LOOP1:JBC  TF0,NEXT
      SJMP LOOP1
NEXT: CPL  P1.0
      DJNZ R7,LOOP
TAB:  DB   10H, 0F1H, 11H, 0FDH, 0CH, 0E5H, 1CH, 0F8H, 19H, 0E9H, 1EH, 0F4H, 09H, 0EDH, 03H, 0F2H, 12H, 0EFH, 13H, 0F0H,
      DB   0BH, 0F0H, 14H, 0F0H, 12H, 0EFH, 03H, 0F2H, 09H, 0EDH, 1EH, 0F4H, 19H, 0E9H, 1CH, 0F8H, 0CH, 0E5H, 11H, 0FDH
      END