pwm.lst

基于单片机的汇编程序

A51 MACRO ASSEMBLER  PWM                                                                  12/23/2008 15:14:13 PAGE     1


MACRO ASSEMBLER A51 V7.02
NO OBJECT MODULE REQUESTED
ASSEMBLER INVOKED BY: D:\douzikeil\C51\BIN\A51.EXE pwm.a SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

  007C                 1         PA8255   EQU  7CH   ; Port A
  007D                 2         PB8255   EQU  7DH   ; Port B
  007E                 3         PC8255   EQU  7EH   ; Port C
  007F                 4         CTL8255  EQU  7FH   ; 控制字地址
  0080                 5         MODE8255 EQU  80H  ;PA PB PC 都工作于方式0，基本输出
                       6     
0000                   7                  ORG  0000H
0000 0140              8                  AJMP  START                ;上电复位入口
0023                   9                  ORG   0023H
0023 0175             10                  AJMP  PCOM_INT
                      11     
0040                  12                  ORG  0040h
0040 758160           13           START: MOV  SP,#60H               ;设置堆栈指针
                      14     
0043 787F             15                  MOV  R0,#CTL8255
0045 7480             16                  MOV  A,#MODE8255
0047 F2               17                  MOVX  @R0,A
                      18     
0048 900093           19                  MOV  DPTR,#TAB
004B 7900             20                  MOV  R1,#0
                      21     
                      22                  ;下面进行串口设置
004D 759850           23                  MOV  SCON,#50H     ;串口工作在方式1下，允许接收;0101 0000
0050 758700           24                  MOV  PCON,#00H     ;SMOD=0
                      25     
                      26                  ;下面使用定时器1进行串行口的波特率的设定
0053 758920           27                  MOV  TMOD,#20H     ;定时器1工作在方式2，即自动重装载模式;0010 0000
0056 758BF4           28                  MOV  TL1,#0F4H     ;（晶体为11.0592MHz）波特率为2400
0059 758DF4           29                  MOV  TH1,#0F4H
005C D28E             30                  SETB TR1
                      31     
005E D2AF             32                  SETB EA
0060 D2AC             33                  SETB ES
                      34     
0062 C2D5             35           LOOP:  CLR  F0
0064 E9               36                  MOV  A,R1
0065 93               37                  MOVC A,@A+DPTR
0066 F599             38                  MOV  SBUF,A
0068 30D5FD           39                  JNB  F0,$
006B 1186             40                  ACALL DELAY160MS
006D 09               41                  INC  R1
006E B908F1           42                  CJNE R1,#8,LOOP
0071 7900             43                  MOV  R1,#0
0073 0162             44                  AJMP LOOP
                      45     
0075                  46        PCOM_INT: PUSH A
*** ___________________________________________^
*** ERROR #A22 IN 46 (pwm.a, LINE 46): EXPRESSION TYPE DOES NOT MATCH INSTRUCTION
0075 309904           47                  JNB  TI,NEXT
0078 C299             48                  CLR  TI
007A 0185             49                  AJMP EXIT
007C D2D5             50            NEXT: SETB F0
007E E599             51                  MOV  A,SBUF
0080 787C             52                  MOV  R0,#PA8255
0082 F2               53                  MOVX  @R0,A
0083 C298             54                  CLR  RI
0085                  55             EXIT:POP A
*** __________________________________________^
A51 MACRO ASSEMBLER  PWM                                                                  12/23/2008 15:14:13 PAGE     2

*** ERROR #A22 IN 55 (pwm.a, LINE 55): EXPRESSION TYPE DOES NOT MATCH INSTRUCTION
0085 32               56                  RETI
                      57     
0086 7FC8             58      DELAY160MS:  MOV R7,#200
0088 7EC8             59            DEL:  MOV R6,#200
008A 7D02             60            DEL1: MOV R5,#2
008C DDFE             61                  DJNZ R5,$
008E DEFA             62                  DJNZ R6,DEL1
0090 DFF6             63                  DJNZ R7,DEL
0092 22               64                  RET
                      65     
0093 FEFDFBF7         66     TAB: DB 0FEH,0FDH,0FBH,0F7H,0EFH,0DFH,0BFH,7FH  ;LED1-LED8 TURN ON
0097 EFDFBF7F                
                      67     end
A51 MACRO ASSEMBLER  PWM                                                                  12/23/2008 15:14:13 PAGE     3

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


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

CTL8255. . . . . .  N NUMB   007FH   A   
DEL. . . . . . . .  C ADDR   0088H   A   
DEL1 . . . . . . .  C ADDR   008AH   A   
DELAY160MS . . . .  C ADDR   0086H   A   
EA . . . . . . . .  B ADDR   00A8H.7 A   
ES . . . . . . . .  B ADDR   00A8H.4 A   
EXIT . . . . . . .  C ADDR   0085H   A   
F0 . . . . . . . .  B ADDR   00D0H.5 A   
LOOP . . . . . . .  C ADDR   0062H   A   
MODE8255 . . . . .  N NUMB   0080H   A   
NEXT . . . . . . .  C ADDR   007CH   A   
PA8255 . . . . . .  N NUMB   007CH   A   
PB8255 . . . . . .  N NUMB   007DH   A   
PC8255 . . . . . .  N NUMB   007EH   A   
PCOM_INT . . . . .  C ADDR   0075H   A   
PCON . . . . . . .  D ADDR   0087H   A   
RI . . . . . . . .  B ADDR   0098H.0 A   
SBUF . . . . . . .  D ADDR   0099H   A   
SCON . . . . . . .  D ADDR   0098H   A   
SP . . . . . . . .  D ADDR   0081H   A   
START. . . . . . .  C ADDR   0040H   A   
TAB. . . . . . . .  C ADDR   0093H   A   
TH1. . . . . . . .  D ADDR   008DH   A   
TI . . . . . . . .  B ADDR   0098H.1 A   
TL1. . . . . . . .  D ADDR   008BH   A   
TMOD . . . . . . .  D ADDR   0089H   A   
TR1. . . . . . . .  B ADDR   0088H.6 A   


REGISTER BANK(S) USED: 0 


ASSEMBLY COMPLETE.  0 WARNING(S), 2 ERROR(S)