按键控制p0口产生pwm.lst

模拟烘手机具有电机控制信号方式控制电机通过硬件检测

A51 MACRO ASSEMBLER  __键控_芇0縚____PWM                                                  03/18/2009 17:30:12 PAGE     1


MACRO ASSEMBLER A51 V7.02a
OBJECT MODULE PLACED IN 按键控制P0口产生PWM.OBJ
ASSEMBLER INVOKED BY: D:\Keil uVision 2\C51\BIN\A51.EXE 按键控制P0口产生PWM.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

  0060                 1           PWMH  EQU  60H
  0061                 2               PWMT  EQU  61H
  0063                 3               COUNT EQU  63H
  0080                 4               PWM   BIT  P0.0
                       5     
0000                   6               ORG  0000H
0000 0130              7               AJMP  MAIN
000B                   8               ORG  000BH
000B 020064            9               LJMP  TIME0
0030                  10               ORG  0030H
0030 756164           11     MAIN: MOV  PWMT,#100              ;设PWM信号一个周期的总长度为100
0033 756301           12           MOV  COUNT,#1
0036 758801           13           MOV  TCON,#01H
0039 D2AF             14               SETB  EA
003B D2A9             15               SETB  ET0
003D 758CFF           16               MOV  TH0,#0FFH
0040 758A12           17               MOV  TL0,#12H
0043 209005           18     JIANCE:JB  P1.0,ZHONGSU            ;低速键按下,则附PWMH=10,即PWM信号的高电平饰