song1.lst

串行口方式1,利用二片单片机间的数据串行传递

A51 MACRO ASSEMBLER  SONG1                                                                09/17/2008 12:52:48 PAGE     1


MACRO ASSEMBLER A51 V6.12
OBJECT MODULE PLACED IN .\song1.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE .\song1.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1            ORG 0000H
0000 020030            2            LJMP START
0030                   3            ORG 30H
0030 75815F            4     START: MOV SP,#5FH
0033 758920            5            MOV TMOD,#00100000B  ;定时器1 方式2
0036 758BFD            6            MOV TL1,#0FDH
0039 758DFD            7            MOV TH1,#0FDH
003C 438780            8            ORL PCON,#10000000B  ;SMOD=1
003F D28E              9            SETB TR1
0041 759840           10            MOV SCON,#01000000B  ;串行口方式1
0044 74AA             11            MOV A,#0AAH
0046 F599             12     SEND:  MOV SBUF,A
0048 109903           13     LOOP:  JBC TI,NEXT
004B 020048           14            LJMP LOOP
004E 12005A           15     NEXT:  LCALL DELAY
0051 2097FD           16            JB P1.7,$
0054 F4               17            CPL A
0055 3097FD           18            JNB P1.7,$
0058 80EC             19            JMP SEND
005A 7AFA             20     DELAY: MOV R2,#0FAH
005C 7BFA             21     L1:    MOV R3,#0FAH
005E DBFE             22     L2:    DJNZ R3,L2
0060 DAFA             23            DJNZ R2,L1
0062 22               24            RET
                      25            END
A51 MACRO ASSEMBLER  SONG1                                                                09/17/2008 12:52:48 PAGE     2

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


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

DELAY. . . . . . .  C ADDR   005AH   A   
L1 . . . . . . . .  C ADDR   005CH   A   
L2 . . . . . . . .  C ADDR   005EH   A   
LOOP . . . . . . .  C ADDR   0048H   A   
NEXT . . . . . . .  C ADDR   004EH   A   
P1 . . . . . . . .  D ADDR   0090H   A   
PCON . . . . . . .  D ADDR   0087H   A   
SBUF . . . . . . .  D ADDR   0099H   A   
SCON . . . . . . .  D ADDR   0098H   A   
SEND . . . . . . .  C ADDR   0046H   A   
SP . . . . . . . .  D ADDR   0081H   A   
START. . . . . . .  C ADDR   0030H   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), 0 ERROR(S)