uart.lst

STC12C5A60S2精简开发板使用手机及其经典例程

C51 COMPILER V8.05a   UART                                                                 06/15/2011 17:21:07 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE UART
OBJECT MODULE PLACED IN uart.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE uart.c BROWSE DEBUG OBJECTEXTEND TABS(5)

line level    source

   1          #include "STC12C5A60S2.h"
   2          #include <string.h>
   3          #include "uart.h"
   4          
   5          /*--------------------------------------
   6                    串口初始化
   7          --------------------------------------*/
   8          
   9          void init(void)
  10          {
  11   1      
  12   1           TMOD = 0x20;                   //定时器1产生波特率
  13   1      
  14   1           SCON = 0x50;                   //方式2,8位数据，波特率可变
  15   1      
  16   1           PCON = 0x00;                   //不倍增波特率
  17   1      
  18   1           AUXR = 0x00;                   //1T工作方式，不使用波特率发生器
  19   1      
  20   1           IP   = 0x00;                   //优先级默认
  21   1      
  22   1           TH1  = TL1 = 0xfd;             //波特率 9600
  23   1           
  24   1           TR1  = 1;                 //启动定时器产生波特率
  25   1           
  26   1           EA=1;
  27   1      
  28   1      }
  29          
  30          
  31          /*--------------------------------------
  32                   发送一个字符
  33          --------------------------------------*/
  34          
  35          void txd_1c(unsigned char x)  
  36          {
  37   1           TI=0;
  38   1           
  39   1           SBUF=x;
  40   1           
  41   1           while(!TI);
  42   1           
  43   1           TI=0;
  44   1      }
  45          
  46          /*--------------------------------------
  47                   回车换行
  48          --------------------------------------*/
  49          
  50          void txd_end()
  51          {
  52   1           txd_1c(0x0d);
  53   1           txd_1c(0x0a);
  54   1      }
  55          /*--------------------------------------
C51 COMPILER V8.05a   UART                                                                 06/15/2011 17:21:07 PAGE 2   

  56                   发送一个字符串
  57          --------------------------------------*/
  58          void txd_s(char *p)
  59          {
  60   1           int i;
  61   1           
  62   1           for(i=0;i<(strlen(p)-1);i++)
  63   1           
  64   1           txd_1c(p[i]);
  65   1      
  66   1           if(p[i]=='\n')
  67   1      
  68   1           txd_end();
  69   1      
  70   1           else txd_1c(p[i]);
  71   1      }
  72          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    144    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       5
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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