max197.lst

基于单片机AT89S52系统的一些测试程序

C51 COMPILER V7.06   MAX197                                                                01/01/2008 14:35:25 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE MAX197
OBJECT MODULE PLACED IN MAX197.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE MAX197.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg52.h>
   2          #include <stdio.h>
   3          #include <absacc.h>
   4          #include <intrins.h>
   5          
   6          typedef unsigned char uchar;
   7          typedef unsigned int  uint;
   8          
   9          #define CS_A    XBYTE [0x5000]          /* MAX197A的片选地址 */
  10          #define CS_B    XBYTE [0x4000]          /* MAX197B的片选地址 */
  11          #define CS_ALL  XBYTE [0x3000]          /* 两片MAX197的片选地址 */
  12          
  13          sbit  HBEN=P1^3;
  14          
  15          /*************************************************
  16          延时子程序
  17          *************************************************/
  18          void delay(uint time)
  19          {
  20   1              while(time--);
  21   1      }
  22          /*************************************************
  23          AD采样子程序
  24          id=1时，选择MAX197A，id=2时，选择MAX197B
  25          ch为采样通道号
  26          *************************************************/
  27          uint ADconvert(uint id,uint ch)
  28          {
  29   1              uint value;
  30   1              uint datH,datL;
  31   1              if((ch>8) || (id > 2) || (id < 1))
  32   1                      return 0xffff;
  33   1              if(id == 1)
  34   1              {
  35   2                      CS_A = 0x40 | ch;
  36   2                      delay(1000);
  37   2                      HBEN = 1;
  38   2                      datH = CS_A;
  39   2                      HBEN = 0;
  40   2                      datL = CS_A;
  41   2              }
  42   1              else if(id == 2)
  43   1              {
  44   2                      CS_B=0x40 | ch;
  45   2                      delay(1000);
  46   2                      HBEN = 1;
  47   2                      datH = CS_B;
  48   2                      HBEN = 0;
  49   2                      datL = CS_B;
  50   2              }
  51   1              datH  &= 0x0f;
  52   1              value  = datH*256+datL;
  53   1              return (value);
  54   1      }
  55          main()
C51 COMPILER V7.06   MAX197                                                                01/01/2008 14:35:25 PAGE 2   

  56          {       
  57   1              uint ad;
  58   1              SCON=0X52;      
  59   1              TMOD=0X20;
  60   1              TH1=0XFD;     // 波特率为9600，晶振=11.0592M
  61   1              TR1=1;
  62   1              //采集开始
  63   1              while(1)
  64   1              {
  65   2                      ad=ADconvert(1,0); //选择MAX197A，通道0
  66   2                      printf("AD result A =%d\n",ad);
  67   2                      ad=ADconvert(2,0); //选择MAX197B，通道0
  68   2                      printf("AD result B =%d\n",ad);
  69   2              }
  70   1      }
  71                 
  72          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    189    ----
   CONSTANT SIZE    =     34    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       8
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)