A51 MACRO ASSEMBLER  STEP_MOTOR                                                           08/07/2006 21:27:48 PAGE     1


MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN Step Motor.OBJ
ASSEMBLER INVOKED BY: e:\Program Files\Keil\C51\BIN\A51.EXE Step Motor.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1     ORG             00H
0000 900061            2     START:  MOV             DPTR,#TAB1
0003 7803              3                     MOV             R0,#03
0005 7C00              4                     MOV             R4,#0
0007 759003            5                     MOV             P1,#3
                       6     
000A 8890              7     WAIT:   MOV             P1,R0                   ;初始角度,0度
000C 7580FF            8                     MOV             P0,#0FFH
000F 308008            9                     JNB             P0.0,POS                ;判斷鍵盤狀態
0012 30810E           10                     JNB             P0.1,NEG
0015 80F3             11                     SJMP    WAIT
                      12     
0017 208109           13     JUST:   JB              P0.1,NEG                ;首次按鍵處理
001A EC               14     POS:    MOV             A,R4                    ;正轉9度
001B 93               15                     MOVC    A,@A+DPTR
001C F590             16                     MOV             P1,A
001E 1154             17                     ACALL   DELAY
0020 0C               18                     INC             R4
0021 012D             19                     AJMP    KEY
0023 7C06             20     NEG:    MOV             R4,#6                   ;反轉9度
0025 EC               21                     MOV             A,R4
0026 93               22                     MOVC    A,@A+DPTR
0027 F590             23                     MOV             P1,A
0029 1154             24                     ACALL   DELAY
002B 012D             25                     AJMP    KEY
                      26     
                      27                                             
002D 758003           28     KEY:    MOV             P0,#03H                 ;讀鍵盤情況
0030 E590             29                     MOV             A,P1                            
0032 20800E           30                     JB              P0.0,FZ1
0035 BC0802           31                     CJNE    R4,#8,LOOPZ             ;是結束標志
0038 7C00             32                     MOV             R4,#0
003A EC               33     LOOPZ:  MOV             A,R4
003B 93               34                     MOVC    A,@A+DPTR
003C F590             35                     MOV             P1,A                    ;輸出控制脈沖
003E 1154             36                     ACALL   DELAY                   ;程序延時
0040 0C               37                     INC             R4                              ;地址加1
0041 012D             38                     AJMP    KEY
0043 2081E7           39     FZ1:    JB              P0.1,KEY
0046 BCFF02           40                     CJNE    R4,#255,LOOPF   ;是結束標志
0049 7C07             41                     MOV             R4,#7
004B 1C               42     LOOPF:  DEC             R4
004C EC               43                     MOV             A,R4
004D 93               44                     MOVC    A,@A+DPTR
004E F590             45                     MOV             P1,A                    ;輸出控制脈沖
0050 1154             46                     ACALL   DELAY                   ;程序延時
0052 012D             47                     AJMP    KEY
                      48     
0054 7E05             49     DELAY:  MOV             R6,#5
0056 7D80             50     DD1:    MOV             R5,#080H
0058 7F00             51     DD2:    MOV             R7,#0
005A DFFE             52     DD3:    DJNZ    R7,DD3
005C DDFA             53                     DJNZ    R5,DD2
005E DEF6             54                     DJNZ    R6,DD1
0060 22               55                     RET
0061 0206040C         56     TAB1:   DB              02H,06H,04H,0CH
0065 08090103         57                     DB              08H,09H,01H,03H ;正轉模型資料
                      58                     END
A51 MACRO ASSEMBLER  STEP_MOTOR                                                           08/07/2006 21:27:48 PAGE     2

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


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

DD1. . . . . . . .  C ADDR   0056H   A   
DD2. . . . . . . .  C ADDR   0058H   A   
DD3. . . . . . . .  C ADDR   005AH   A   
DELAY. . . . . . .  C ADDR   0054H   A   
FZ1. . . . . . . .  C ADDR   0043H   A   
JUST . . . . . . .  C ADDR   0017H   A   
KEY. . . . . . . .  C ADDR   002DH   A   
LOOPF. . . . . . .  C ADDR   004BH   A   
LOOPZ. . . . . . .  C ADDR   003AH   A   
NEG. . . . . . . .  C ADDR   0023H   A   
P0 . . . . . . . .  D ADDR   0080H   A   
P1 . . . . . . . .  D ADDR   0090H   A   
POS. . . . . . . .  C ADDR   001AH   A   
START. . . . . . .  C ADDR   0000H   A   
TAB1 . . . . . . .  C ADDR   0061H   A   
WAIT . . . . . . .  C ADDR   000AH   A   


REGISTER BANK(S) USED: 0 

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