adcmain.lst

这是单片机C51典型应用设计代码

C51 COMPILER V7.10   ADCMAIN                                                               06/25/2004 12:07:45 PAGE 1   


C51 COMPILER V7.10, COMPILATION OF MODULE ADCMAIN
OBJECT MODULE PLACED IN adcMain.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE adcMain.c DEBUG OBJECTEXTEND

line level    source

   1          /*--------------------------------------------------------------------------
   2          adcMain.c
   3          
   4          Contains a sample program that implements the AD converter for the 
   5          Amtel Wirless T89C51CC01 and T89C51CC02.
   6          
   7          Copyright (c) 1988-2001 Keil Elektronik GmbH and Keil Software, Inc.
   8          All rights reserved.
   9          --------------------------------------------------------------------------*/
  10          #include <stdio.h>
  11                    
  12          sfr  ADCON   =   0xF3;
  13          sfr  ADCF    =   0xF6;
  14          sfr  ADCLK   =   0xF2;
  15          sfr  ADDH    =   0xF5;
  16          sfr  ADDL    =   0xF4;
  17          
  18          sfr  SCON    =   0x98;
  19          sfr  TMOD    =   0x89;
  20          sfr  TH1     =   0x8D;
  21          sbit  TR1    =   0x88^6;
  22          sbit  TI     =   0x98^1;
  23          
  24          /*=============================================================================
  25          =============================================================================*/
  26          
  27          /*=============================================================================
  28          This function initializes the A/D Converter on the Atmel WM CC01 using
  29          10-bits.
  30          =============================================================================*/
  31          void init_ADC (void)
  32          {
  33   1              ADCF = 0xFF;   // Setup P1 as 8 ADC inputs
  34   1      
  35   1              ADCLK = 0x1F;  // Set AD Clock divisor to 32 (the maximum)
  36   1      
  37   1              ADCON |= 0x20; // Enable the A/D Converter
  38   1      }
  39          
  40          /*=============================================================================
  41          This function sets the A/D channel to convert and starts a conversion.
  42          The 10-bit value is returned.
  43          =============================================================================*/
  44          unsigned read_ADC (unsigned char channel)
  45          {
  46   1              ADCON &= ~0x07;               // Clear channel bits
  47   1              ADCON |= 0x07 & channel;      // Set channel to convert
  48   1      
  49   1              ADCON |= 0x08;                // Start a Conversion
  50   1      
  51   1              while( ADCON & 0x8 );         //Wait for conversion to end
  52   1      
  53   1              return (((unsigned) ADDH << 2) | (ADDL & 3));
  54   1      }
  55          
C51 COMPILER V7.10   ADCMAIN                                                               06/25/2004 12:07:45 PAGE 2   

  56          /*=============================================================================
  57          =============================================================================*/
  58          void main(void)
  59          {
  60   1              unsigned char i;
  61   1      
  62   1      /*-----------------------------------------------
  63   1      Setup the serial port.
  64   1      -----------------------------------------------*/
  65   1              SCON  = 0x50;   /* SCON: mode 1, 8-bit UART, enable rcvr      */
  66   1              TMOD |= 0x20;   /* TMOD: timer 1, mode 2, 8-bit reload        */
  67   1              TH1   = 221;    /* TH1:  reload value for 1200 baud @ 16MHz   */
  68   1              TR1   = 1;      /* TR1:  timer 1 run                          */
  69   1              TI    = 1;      /* TI:   set TI to send first char of UART    */
  70   1      
  71   1      /*-----------------------------------------------
  72   1      Initialize the A/D Converter
  73   1      -----------------------------------------------*/
  74   1              init_ADC ();
  75   1      
  76   1      /*-----------------------------------------------
  77   1      Loop thru each channel and output the converted
  78   1      value.
  79   1      -----------------------------------------------*/
  80   1              while (1)
  81   1              {
  82   2                      for (i = 0; i < 8; i++)
  83   2                      {
  84   3                              printf ("Channel %u = %4u\n", (unsigned) i, read_ADC (i));
  85   3                      }
  86   2              }
  87   1      }
  88          
  89          /*=============================================================================
  90          =============================================================================*/


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     99    ----
   CONSTANT SIZE    =     18    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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