gsm-

GSM室温监控系统

C51 COMPILER V7.06   USART                                                                 06/13/2010 15:40:35 PAGE 1   


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

stmt level    source

   1          #ifndef _USART_INCLUDED_
   2          #define _USART_INCLUDED_
   3          #include "common.h"
   4          //延时函数ms(condition:11.0592M HSE)
   5          void delay_ms(unsigned int time)
   6          {
   7   1              unsigned char tres;
   8   1              for(;time>0;time--)
   9   1              {
  10   2                      tres=150;
  11   2                      while(tres--);
  12   2              }
  13   1      }   
  14          
  15          //串口初始化
  16          void USART_Init()
  17          {                                                
  18   1              SCON=0X50;//串口:方式1,接受允许
  19   1              TMOD=0X20;//定时器1:模式2,8位自动重装模式,用于产生波特率          
  20   1              TH1=0XFD; //初值设定 9600bit
  21   1              TL1=0XFD;   
  22   1              TR1=1;    //开启定时器1                            
  23   1              //TI=1;//特别注意:强行使上次数据发送结束,才开始printf   (不信可以试试去掉本句试试) 
  24   1              EA=1;
  25   1      }         
  26          
  27          void SendASC(uchar d)
  28          {
  29   1              
  30   1              SBUF=d;
  31   1              while(!TI);
  32   1              TI=0;
  33   1      }
  34          void SendString(uchar *str)     
  35          {
  36   1              while(*str)
  37   1              {
  38   2                      SendASC(*str) ;
  39   2                      str++;
  40   2              }
  41   1      }
  42          
  43          
  44          //  通讯中断接收程序   中断函数无返回值
  45          void USART_Interrupt(void)  interrupt 4   //放在这里 和放在main（）里面是一样的
  46          {
  47   1              EA=0; 
  48   1              flag=1;
  49   1              if((RxPoint<RxBuf_N)&&RI) //必须判断RI是否为1
  50   1          {
  51   2              RI=0;
  52   2              RxBuf[RxPoint++]=SBUF;
  53   2          }
  54   1              RI=0;
  55   1              EA=1;
C51 COMPILER V7.06   USART                                                                 06/13/2010 15:40:35 PAGE 2   

  56   1      }
  57          
  58          #endif     


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    119    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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