ad.lst

一个用adtlc2543采样电视波形,显示波形的51程序

C51 COMPILER V7.10   AD                                                                    03/08/2008 14:40:59 PAGE 1   


C51 COMPILER V7.10, COMPILATION OF MODULE AD
OBJECT MODULE PLACED IN ad.OBJ
COMPILER INVOKED BY: C:\silabs\IDEfiles\C51\BIN\C51.exe ad.c DB OE

line level    source

   1          
   2          #include <c8051f200.h>                    // SFR declarations
   3          
   4          //------------------------------------------------------------------------------------
   5          // 16-bit SFR Definitions for 'F2xx
   6          //------------------------------------------------------------------------------------
   7          
   8          sfr16 DP       = 0x82;                    // data pointer
   9          sfr16 ADC0     = 0xbe;                    // ADC0 data
  10          sfr16 ADC0GT   = 0xc4;                    // ADC0 greater than window
  11          sfr16 ADC0LT   = 0xc6;                    // ADC0 less than window
  12          sfr16 RCAP2    = 0xca;                    // Timer2 capture/reload
  13          sfr16 T2       = 0xcc;                    // Timer2
  14          
  15          //------------------------------------------------------------------------------------
  16          // Global CONSTANTS
  17          //------------------------------------------------------------------------------------
  18          
  19          sbit  RUN_LED = P2^5; 
  20          sbit  audioclk = P2^4;
  21          //------------------------------------------------------------------------------------
  22          // Global VARIABLE
  23          //------------------------------------------------------------------------------------
  24          //------------------------------------------------------------------------------------
  25          // Function PROTOTYPES
  26          //------------------------------------------------------------------------------------
  27          void Timer2_ISR (void);
  28          //------------------------------------------------------------------------------------
  29          // MAIN Routine
  30          //------------------------------------------------------------------------------------
  31          void main (void) {
  32   1              unsigned char audiodata;
  33   1         // disable watchdog timer
  34   1         WDTCN = 0xde;
  35   1         WDTCN = 0xad;
  36   1         OSCICN |=2;//     : Internal Oscillator typical frequency is 8MHz.           
  37   1         PRT2CF |= 0x30;                        // enable P2.5 (LED) as push-pull output//enable p2.4 as output
  38   1         PRT0CF = 0xff;                        // enable P0 as push-pull output
  39   1         PRT1CF |= 0x80;                                              //enable p1.7 as output
  40   1      // Init Timer2 gto generate interrupts // at a 8kHz rate.
  41   1       // Configure Timer2 to auto-reload and generate an interrupt at interval
  42   1      // specified by <T2_counts> using SYSCLK/12 as its time base.
  43   1         T2CON  = 0x00;                         // Stop Timer2; configure for auto-reload
  44   1         CKCON &= ~0x20;                        // T2M=0 (use SYSCLK/12 as timebase)
  45   1         RCAP2  = -83;//8000000/12/8000;                   // Init reload value
  46   1         T2     = 0xffff;                       // set to reload immediately
  47   1         ET2    = 1;                            // enable Timer2 interrupts
  48   1         TR2    = 1;                            // start Timer2
  49   1      //AD init
  50   1              AMX0SL = 0x28;//0010 1000 select p1.0 for AD input
  51   1              ADC0CF = 0x62;//0110 0011 conversion clock is 1MHz, Gain is 4
  52   1              //Bits2-0: 000: Gain = 1/  001: Gain = 2/ 010: Gain = 4/ 011: Gain = 8/ 10x: Gain = 16/ 11x: Gain = 0.5
  53   1              ADC0CN = 0xcc;//1100 1100 
  54   1              REF0CN = 0x03;// select VDD as the refer Voltage
  55   1      
C51 COMPILER V7.10   AD                                                                    03/08/2008 14:40:59 PAGE 2   

  56   1        EA = 1;                                                                // enable global interrupts
  57   1              audioclk = 0;
  58   1         while (1) {   
  59   2                      if(ADCINT==1)
  60   2                      {
  61   3                              ADCINT=0;
  62   3                              audiodata=ADC0H;
  63   3                              P0 =audiodata;
  64   3                              audioclk=1;
  65   3                              audioclk=0;
  66   3                      }
  67   2         }
  68   1      }
  69          
  70          
  71          //------------------------------------------------------------------------------------
  72          // Interrupt Service Routines
  73          //------------------------------------------------------------------------------------
  74          //------------------------------------------------------------------------------------
  75          // Timer2_ISR
  76          //------------------------------------------------------------------------------------
  77          // This routine .
  78          //
  79          void Timer2_ISR (void) interrupt 5
  80          {
  81   1         static unsigned int runc=0;
  82   1         TF2 = 0;                               // clear Timer2 overflow interrupt flag
  83   1         runc++;
  84   1         //run light: if is the lo then light, if is the ho then flash
  85   1         if (runc>=4000){
  86   2                      runc=0;
  87   2                              RUN_LED = ~RUN_LED;
  88   2              }
  89   1      }
  90          
  91           


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    107    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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