tlc2543.lst

12位模拟数字转换芯片

A51 MACRO ASSEMBLER  TLC2543                                                              09/07/2006 11:18:33 PAGE     1


MACRO ASSEMBLER A51 V7.10
OBJECT MODULE PLACED IN .\TLC2543.obj
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE ..\TLC2543.asm SET(SMALL) DEBUG OBJECT(.\TLC2543.obj) EP

LOC  OBJ            LINE     SOURCE

                       1     ;;      #include "regv51.h"
                       2     
  0090                 3             sbit IOC=P1.0;
  0091                 4             sbit DI=P1.1;
  0092                 5             sbit DO=P1.2;
  0093                 6             sbit CS=P1.3;
                       7             TLC2543 segment code
                       8             Delay segment code
                       9             public _TLC2543
                      10             public _delay
                      11     ;*******************************************************************    
                      12     ;作者：ywg
                      13     ;日期：2003-7-31
                      14     ;说明：延时子程序
                      15     ;*******************************************************************
----                  16             rseg Delay
0000                  17     _delay:
                      18             using 0
0000 EF               19     Del0:   mov a,r7        ;6
0001 FE               20             mov r6,a        ;6
0002 ED               21     Del1:   mov a,r5        ;6
0003 FC               22             mov r4,a        ;6
0004 DCFE             23     Del2:   djnz r4,Del2    ;12
0006 DEFA             24             djnz r6,Del1    ;12
0008 22               25             ret             ;12
                      26     ;;;;1+1+(1+1+2*r5+2)*r7+2=4+(4+2*r5)*r7=4*r7+2*r5*r7
                      27     ;;;;4+(4+2*r5)*r7个机器周期
                      28     ;;;;delay(1,14):r7=1;r6=14
                      29     ;;;;1。4+4+2*14=36个指令周期；时间为36*(6/11.0592)us=19.53us.
                      30     ;;;;2。加上lcall delay 的2个指令周期=1.08us;
                      31     ;;;;1+2=20.61us
                      32     ;*******************************************************************    
                      33     ;作者：ywg
                      34     ;日期：2003-7-31
                      35     ;说明：TLC2543的采集程序
                      36     ;*******************************************************************
----                  37             rseg TLC2543
                      38             using 0
0000                  39     _TLC2543:
                      40             ;using 3
0000 EF               41             mov a,r7 
0001 FC               42             mov r4,a
0002 C293             43             clr CS 
0004 20E11C           44             jb acc.1,LSB
0007                  45     MSB:    
0007 7908             46             mov r1,#08 
0009 A292             47     LOOP1:  mov c,DO
000B 00               48             nop
000C 00               49             nop
000D 33               50             rlc a
000E 9291             51             mov DI,c
0010 D290             52             setb IOC
0012 00               53             nop
0013 00               54             nop
0014 C290             55             clr IOC
0016 D9F1             56             djnz r1,LOOP1
0018 FE               57             mov r6,a
0019 EC               58             mov a,r4
A51 MACRO ASSEMBLER  TLC2543                                                              09/07/2006 11:18:33 PAGE     2

001A 20E129           59             jb acc.1, return 
001D 20E303           60             jb acc.3,LSB 
0020 20E223           61             jb acc.2,return
0023 7904             62     LSB:    mov r1,#04 
0025 7F00             63             mov r7,#0 
0027 7400             64             mov a,#0 
0029 A292             65     LOOP2:  mov c,DO
002B 33               66             rlc a
002C 9291             67             mov DI,c
002E D290             68             setb IOC
0030 00               69             nop
0031 00               70             nop
0032 C290             71             clr IOC
0034 D9F3             72             djnz r1,LOOP2
0036 FF               73             mov r7,a 
                      74             
0037 EE               75             mov a,r6
0038 C4               76             swap a
0039 54F0             77             anl a,#0xf0
003B 4F               78             orl a,r7
003C FF               79             mov r7,a
                      80     
003D EE               81             mov a,r6
003E C4               82             swap a
                      83             
003F 540F             84             anl a,#0x0f
0041 FE               85             mov r6,a
                      86             
0042 EC               87             mov a,r4 
0043 20E1C1           88             jb acc.1, MSB
0046                  89     return: 
0046 D293             90             setb CS 
0048 22               91             ret
                      92             end
A51 MACRO ASSEMBLER  TLC2543                                                              09/07/2006 11:18:33 PAGE     3

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


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

ACC. . . . . . . .  D ADDR   00E0H   A   
CS . . . . . . . .  B ADDR   0090H.3 A   
DEL0 . . . . . . .  C ADDR   0000H   R   SEG=DELAY
DEL1 . . . . . . .  C ADDR   0002H   R   SEG=DELAY
DEL2 . . . . . . .  C ADDR   0004H   R   SEG=DELAY
DELAY. . . . . . .  C SEG    0009H       REL=UNIT
DI . . . . . . . .  B ADDR   0090H.1 A   
DO . . . . . . . .  B ADDR   0090H.2 A   
IOC. . . . . . . .  B ADDR   0090H.0 A   
LOOP1. . . . . . .  C ADDR   0009H   R   SEG=TLC2543
LOOP2. . . . . . .  C ADDR   0029H   R   SEG=TLC2543
LSB. . . . . . . .  C ADDR   0023H   R   SEG=TLC2543
MSB. . . . . . . .  C ADDR   0007H   R   SEG=TLC2543
P1 . . . . . . . .  D ADDR   0090H   A   
RETURN . . . . . .  C ADDR   0046H   R   SEG=TLC2543
TLC2543. . . . . .  C SEG    0049H       REL=UNIT
_DELAY . . . . . .  C ADDR   0000H   R   SEG=DELAY
_TLC2543 . . . . .  C ADDR   0000H   R   SEG=TLC2543


REGISTER BANK(S) USED: 0 


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