16a.lst

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C51 COMPILER V6.20c  16A                                                                   03/19/2004 10:47:41 PAGE 1   


C51 COMPILER V6.20c, COMPILATION OF MODULE 16A
OBJECT MODULE PLACED IN 16a.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 16a.C COMPACT ROM(SMALL) DEBUG OBJECTEXTEND

stmt level    source

   1          
   2          
   3          /*------------------------------------------
   4          serial ad & da.c   外电压比较器
   5          Copyright 2002 DFJD Software, Inc.
   6          --------------------------------------------*/
   7          
   8          #include <reg52.h>   /* special function register declarations   */
   9                               /* for the intended 8051 derivative         */
  10          //#include <stdio.h>   /* prototype declarations for I/O functions */
  11          
  12          #define uint	unsigned int
  13          #define uchar	unsigned char
  14          
  15          uchar bdata flag;
  16          sbit flag_0=flag^0;
  17          sbit flag_1=flag^1;
  18          sbit flag_2=flag^2;
  19          sbit flag_3=flag^3;
  20          sbit flag_4=flag^4;
  21          
  22          
  23          sbit P3_2=P3^2;
  24          sbit P3_3=P3^3;
  25          sbit P3_4=P3^4;
  26          sbit P3_5=P3^5;
  27          sbit P3_7=P3^7;
  28          
  29          
  30          
  31          uchar data da;    /* 收*/
  32          union       /* 发*/
  33          { 
  34             unsigned int  t_buf[4]; 
  35             unsigned char t_buf8[8];
  36          }    ad;
  37          
  38          uchar jj;
  39           uint ii;
  40          sbit AOUT=P3^6;
  41          
  42          void delay(uint i)
  43           {
  44   1        uint j;
  45   1        for(j=0;j<i;j++);
  46   1       }
  47          
  48          serial() interrupt 4 using 1
  49           {
  50   1        uchar i;
  51   1        uchar *pi;
  52   1        ES=0;
  53   1        RI=0;
  54   1        i=SBUF;
  55   1        if(i!=0xaa)
C51 COMPILER V6.20c  16A                                                                   03/19/2004 10:47:41 PAGE 2   

  56   1         {
  57   2          SBUF=0xff;
  58   2          while(TI==0);
  59   2          TI=0;
  60   2          ES=1;
  61   2          return;
  62   2         }
  63   1        SBUF=0xbb;
  64   1        while(TI==0);
  65   1        TI=0;
  66   1        pi=ad.t_buf8;
  67   1        for(jj=0;jj<8;jj++)
  68   1         {
  69   2          SBUF=*pi;
  70   2          while(TI==0);
  71   2          TI=0;
  72   2          pi++;
  73   2         }
  74   1        while(RI==0);
  75   1        RI=0;
  76   1        da=SBUF;
  77   1        ES=1;
  78   1       }
  79          
  80          uint adcsand (uchar i)
  81          {
  82   1      // uint ii;     /* 1000us<->1000mv */
  83   1       P1=0xfd;     /*步骤1,p1.1=0, Cf放电 */
  84   1       TR0=0;
  85   1       delay(10);   /* dalay20us,Cf彻底放电*/
  86   1       TH0=0;
  87   1       TL0=0;
  88   1       P1=i;         /* p1.1=1开始积分*/
  89   1       TR0=1;            /* 起动T0 */
  90   1       while(AOUT==1);   /* 检测AOUT 是否跳变,aout=0,(v- > v+)积分时间到