ex8-10.lst

《单片机原理实用教程——基于Proteus虚拟仿真》一书的配套光盘


ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 1





       MCS-51 Family Cross Assembler   A S E M - 5 1   V 1.2
       =====================================================



	Source File:	EX8-10.ASM
	Object File:	EX8-10.HEX
	List File:	EX8-10.LST



 Line  I  Addr  Code            Source

    1:
    2:		B	 B0	          SCLK         BIT  P3.0             ;定义I/O口
    3:		B	 B1	          CS549        BIT  P3.1
    4:		B	 B2	          DOUT         BIT  P3.2
    5:
    6:		N      0000	          ORG          0000H
    7:	  0000	02 00 30		  LJMP 	       MAIN
    8:		N      0030		  ORG 	       0030H
    9:	  0030	75 81 60	MAIN:     MOV	       SP,#60H
   10:	  0033	12 00 43	          LCALL        TLC549                  ;启动TLC549进行A/D转换
   11:	  0036	12 00 68	          LCALL        DELAY
   12:	  0039	12 00 43	LOOP:     LCALL        TLC549                  ;读取上次ADC值，再次启动TLC549进行A/D转换
   13:	  003C	12 00 68	          LCALL        DELAY
   14:	  003F	F5 90		          MOV          P1,A                    ;将读取的A/D转换值送往P1口显示
   15:	  0041	80 F6		          SJMP         LOOP
   16:
   17:	  0043	C2 B1		TLC549:   CLR          CS549                   ;选中TLC549
   18:	  0045	00		          NOP
   19:	  0046	00		          NOP
   20:	  0047	A2 B2		          MOV          C,DOUT                  ;接受第一位数据
   21:	  0049	33		          RLC          A
   22:	  004A	00		          NOP
   23:	  004B	00		          NOP
   24:	  004C	78 07		          MOV          R0,#07                  ;置循环次数
   25:	  004E	D2 B0		SPIIN:    SETB         SCLK
   26:	  0050	00		          NOP
   27:	  0051	00		          NOP
   28:	  0052	C2 B0		          CLR          SCLK                    ;产生有效沿，以便从器件锁存数据
   29:	  0054	00		          NOP
   30:	  0055	00		          NOP
   31:	  0056	A2 B2		          MOV          C,DOUT                  ;接受下一位数据(从最高位开始)
   32:	  0058	33		          RLC          A
   33:	  0059	D8 F3		          DJNZ         R0,SPIIN                ;8位数据未接收完，则继续接收下一位
   34:	  005B	C2 B0		          CLR          SCLK
   35:	  005D	00		          NOP
   36:	  005E	00		          NOP
   37:	  005F	D2 B0		          SETB         SCLK
   38:	  0061	00		          NOP
   39:	  0062	00		          NOP
   40:	  0063	C2 B0		          CLR          SCLK
   41:	  0065	D2 B1		          SETB         CS549                   ;结束SPI总线操作，关闭从器件
   42:	  0067	22		          RET
   43:

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 2



 Line  I  Addr  Code            Source

   44:	  0068	7F 28		DELAY:    MOV          R7,#40                  ;延时子程序
   45:	  006A	DF FE		          DJNZ         R7,$
   46:	  006C	22		          RET
   47:				          END





                     register banks used:  ---

                     no errors




ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 3





	       L I S T   O F   S Y M B O L S
	       =============================


SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
AC				  BIT	      D6
ACC				  DATA	      E0
B				  DATA	      F0
CS549				  BIT	      B1	   3
CY				  BIT	      D7
DELAY				  CODE	    0068	  44
DOUT				  BIT	      B2	   4
DPH				  DATA	      83
DPL				  DATA	      82
EA				  BIT	      AF
ES				  BIT	      AC
ET0				  BIT	      A9
ET1				  BIT	      AB
EX0				  BIT	      A8
EX1				  BIT	      AA
EXTI0				  CODE	    0003
EXTI1				  CODE	    0013
F0				  BIT	      D5
IE				  DATA	      A8
IE0				  BIT	      89
IE1				  BIT	      8B
INT0				  BIT	      B2
INT1				  BIT	      B3
IP				  DATA	      B8
IT0				  BIT	      88
IT1				  BIT	      8A
LOOP				  CODE	    0039	  12
MAIN				  CODE	    0030	   9
OV				  BIT	      D2
P				  BIT	      D0
P0				  DATA	      80
P1				  DATA	      90
P2				  DATA	      A0
P3				  DATA	      B0
PCON				  DATA	      87
PS				  BIT	      BC
PSW				  DATA	      D0
PT0				  BIT	      B9
PT1				  BIT	      BB
PX0				  BIT	      B8
PX1				  BIT	      BA
RB8				  BIT	      9A
RD				  BIT	      B7
REN				  BIT	      9C
RESET				  CODE	    0000
RI				  BIT	      98
RS0				  BIT	      D3
RS1				  BIT	      D4
RXD				  BIT	      B0
SBUF				  DATA	      99

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 4



SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
SCLK				  BIT	      B0	   2
SCON				  DATA	      98
SINT				  CODE	    0023
SM0				  BIT	      9F
SM1				  BIT	      9E
SM2				  BIT	      9D
SP				  DATA	      81
SPIIN				  CODE	    004E	  25
T0				  BIT	      B4
T1				  BIT	      B5
TB8				  BIT	      9B
TCON				  DATA	      88
TF0				  BIT	      8D
TF1				  BIT	      8F
TH0				  DATA	      8C
TH1				  DATA	      8D
TI				  BIT	      99
TIMER0				  CODE	    000B
TIMER1				  CODE	    001B
TL0				  DATA	      8A
TL1				  DATA	      8B
TLC549				  CODE	    0043	  17
TMOD				  DATA	      89
TR0				  BIT	      8C
TR1				  BIT	      8E
TXD				  BIT	      B1
WR				  BIT	      B6