pwm.lst

最新1211单片机的PWM源程序代码

C51 COMPILER V7.50   PWM                                                                   08/19/2006 09:45:24 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE PWM
OBJECT MODULE PLACED IN pwm.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE pwm.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include        <REG1210.H>
   2          #include        <intrins.h>
   3          #include        <stdio.h>
   4          #include        "ISD51.H"
   5          #include    "ROM.H"
   6          #define         XTAL    11059200
   7          #define         BAUDRATE        9600
   8          #define         T2RELOAD        (65536-(XTAL/32/BAUDRATE))
   9          sbit            GreenLed = P2^4;
  10          void delay(void){
  11   1        unsigned long s;
  12   1      
  13   1        s =0x0f000;
  14   1        while(s--);
  15   1      }
  16          
  17          void main(void) {
  18   1      //Config ISD
  19   1        T2CON   = 0x34;        // Use Timer 2 as baudrate generator
  20   1        RCAP2H  = 0xFF;
  21   1        RCAP2H  = (T2RELOAD >> 8);    // baudrate reload factor
  22   1        RCAP2L  = T2RELOAD;
  23   1      
  24   1        SCON0   = 0x50;        // enable serial uart & receiver
  25   1        PCON   |= 0x80;        // double baudrate for UART0
  26   1        P3DDRL &= 0xF0;        // P3DDRL set port pins of UART0 to input/strong drive output
  27   1        P3DDRL |= 0x07;        // P3DDRL set port pins of UART0 to input/strong drive output 
  28   1      
  29   1      
  30   1        USEC   = ((XTAL+500000)/1000000)-1; // USEC timer factor
  31   1        ONEMS  = (XTAL/1000)-1;             // (MSECH+MSCL) MS Timer counting at 1.0ms
  32   1      
  33   1        HMSEC  = 100-1;         // Hundred MS Timer to 100.0ms
  34   1        SECINT = (10-1) | 0x80; // SECINT= 10 * HMS Timer Rate = 1 sec
  35   1                                // '0x80' will set the MSB for write immediate
  36   1        MSINT  = (10-1) | 0x80; // MSINT = 10ms for Tone period time base
  37   1        PDCON  = 0x1D;          // Powerup SysTimer
  38   1      
  39   1        FTCON  = 0xA5;          // setup flash programming times
  40   1      
  41   1        EICON  = 0x40;          //DIS enable all auxiliary interrupts
  42   1      
  43   1        EA = 1;                 //DIS Enable global interrupt flag
  44   1      
  45   1       ISDwait ();              // wait for connection to uVision2 Debugger
  46   1      //Config        PWM
  47   1        P3 = 0xFF     ;                         //Config P3's PWM
  48   1        P3DDRL = 0x40;
  49   1        PDCON &= 0xED;                  //Turn on PWM power
  50   1        PWMCON =0     ;                         //Config period time
  51   1        PWM = 200;
  52   1        PWMCON = 0x10;                  //Config pwmduty
  53   1        PWM = 20;
  54   1        PWMCON = 0x01;                  //Select time speed using USEC,permit pwm function
  55   1        while (1) {
C51 COMPILER V7.50   PWM                                                                   08/19/2006 09:45:24 PAGE 2   

  56   2              printf("PWM is normal\n");
  57   2              PWMCON = 0x10;
  58   2              PWM = 150 ;
  59   2              PWMCON = 0x01;            //Select time speed using USEC,permit pwm function
  60   2              delay();
  61   2              PWMCON = 0x10;
  62   2              GreenLed = 0;             //调试指示灯
  63   2              PWM = 10;
  64   2              PWMCON = 0x01;            //Select time speed using USEC,permit pwm function              
  65   2              delay();
  66   2              GreenLed = 1;
  67   2        }
  68   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    166    ----
   CONSTANT SIZE    =     15    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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