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  PWM                                                                  05/31/2007 08:55:54 PAGE     1


MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN PWM.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE PWM.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

  0035                 1     ADC             EQU             35H
  0037                 2     PWMH    EQU     37H
  0036                 3     PWML    EQU     36H
  00A4                 4     CLOCK   BIT             P2.4                    ;定义ADC0808时钟位
  00A5                 5     ST              BIT     P2.5
  00A6                 6     EOC     BIT     P2.6
  00A7                 7     OE              BIT     P2.7
  00B7                 8     PWM             BIT             P3.7
0000                   9                     ORG     00H
0000 800C             10                     SJMP    START
000B                  11                     ORG             0BH
000B 020037           12                     LJMP    INT_T0
                      13     
000E 758902           14     START:  MOV             TMOD,#02H               ;
0011 758CFF           15                     MOV             TH0,#0FFH
0014 758A00           16                     MOV             TL0,#00H
0017 75A882           17                     MOV             IE,#82H
001A D28C             18                     SETB    TR0
                      19     
001C C2A5             20     WAIT:   CLR     ST                              
001E D2A5             21                     SETB    ST
0020 C2A5             22                     CLR     ST                              ;启动AD转换
0022 30A6FD           23                     JNB     EOC,$                   ;等待转换结束
0025 D2A7             24                     SETB    OE 
0027 859035           25                     MOV     ADC,P1                  ;读取AD转换结果
002A C2A7             26                     CLR     OE
002C E535             27                     MOV     A,ADC
002E F536             28                     MOV     PWML,A
0030 F4               29                     CPL     A
0031 2401             30                     ADD     A,#1
0033 F537             31                     MOV     PWMH,A
0035 80E5             32             SJMP    WAIT
0037 30B709           33     INT_T0: JNB     PWM,SGAO       ;PWM不是高就输出补码
003A C2B7             34             CLR     PWM                        ;PWM输出
003C 85368C           35                     MOV     TH0,PWML
003F 85368A           36                     MOV     TL0,PWML
0042 32               37             RETI
0043 D2B7             38     SGAO:   SETB    PWM
0045 85378C           39                     MOV     TH0,PWMH
0048 85378A           40                     MOV     TL0,PWMH
004B 32               41             RETI
004C 7E01             42     DELAY:  MOV             R6,#1
004E DEFE             43     D1:             DJNZ    R6,D1
0050 D5E0FB           44                     DJNZ    ACC,D1
0053 22               45                     RET
                      46     
                      47                     END
A51 MACRO ASSEMBLER  PWM                                                                  05/31/2007 08:55:54 PAGE     2

SYMBOL TABLE LISTING
------ ----- -------


N A M E             T Y P E  V A L U E   ATTRIBUTES

ACC. . . . . . . .  D ADDR   00E0H   A   
ADC. . . . . . . .  N NUMB   0035H   A   
CLOCK. . . . . . .  B ADDR   00A0H.4 A   
D1 . . . . . . . .  C ADDR   004EH   A   
DELAY. . . . . . .  C ADDR   004CH   A   
EOC. . . . . . . .  B ADDR   00A0H.6 A   
IE . . . . . . . .  D ADDR   00A8H   A   
INT_T0 . . . . . .  C ADDR   0037H   A   
OE . . . . . . . .  B ADDR   00A0H.7 A   
P1 . . . . . . . .  D ADDR   0090H   A   
P2 . . . . . . . .  D ADDR   00A0H   A   
P3 . . . . . . . .  D ADDR   00B0H   A   
PWM. . . . . . . .  B ADDR   00B0H.7 A   
PWMH . . . . . . .  N NUMB   0037H   A   
PWML . . . . . . .  N NUMB   0036H   A   
SGAO . . . . . . .  C ADDR   0043H   A   
ST . . . . . . . .  B ADDR   00A0H.5 A   
START. . . . . . .  C ADDR   000EH   A   
TH0. . . . . . . .  D ADDR   008CH   A   
TL0. . . . . . . .  D ADDR   008AH   A   
TMOD . . . . . . .  D ADDR   0089H   A   
TR0. . . . . . . .  B ADDR   0088H.4 A   
WAIT . . . . . . .  C ADDR   001CH   A   


REGISTER BANK(S) USED: 0 


ASSEMBLY COMPLETE.  0 WARNING(S), 0 ERROR(S)