smain.lst

本文详细介绍了VB和单片机之间进行通信的过程。为了确保通信的可靠性

C51 COMPILER V7.06   SMAIN                                                                 05/13/2004 15:27:10 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE SMAIN
OBJECT MODULE PLACED IN Smain.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE Smain.c ROM(COMPACT)

stmt level    source

   1          #include<reg51.h>
   2          #include<stdio.h>
   3          /*---全局变量区-----------------------------------*/
   4          char ErrorNum=0;/*ErrorNum should below 127*/
   5          /*-函数声明区-------------------------------------*/
   6           extern void init_s(void);
   7           extern void init_t0(void);
   8           extern void init_m(char data *Address,unsigned char n,unsigned char i);///内存填充任意数值
   9           extern bit hd2hd(void);
  10           extern void Send_Data( char data *Adrress,unsigned char n);
  11           extern bit Ack(void);
  12          // extern void delayms(unsigned int x);
  13           extern void OnError(char ErrorN);
  14          /*--------------------------------------------------*/
  15           void main(void)
  16          {
  17   1        unsigned char i;
  18   1        char data *da_point;//初始化内存的数据指针
  19   1        char data *data_addr;//要发送的内存数据初始位置
  20   1        init_s();//串行通信初始化，1200BPS
  21   1        da_point=0x32;/*format memory from 32H*/
  22   1        init_m(da_point,35,0x55);/*内存从32处填充35个55*/
  23   1        init_t0();//定时器0和中断并未打开，只是初始化。
  24   1        if (hd2hd()==0) /*握手程序*/
  25   1           {
  26   2            ErrorNum=1;
  27   2            OnError(ErrorNum);
  28   2           }
  29   1        /*----set data*/  
  30   1        data_addr=0x34;
  31   1        for (i=0;i<3;i++)
  32   1        {
  33   2          Send_Data(data_addr,10);
  34   2          if(Ack()==1)  break;
  35   2          if (i==2) //三次应答错误则出错处理。
  36   2            {
  37   3            ErrorNum=2;
  38   3            OnError(ErrorNum);
  39   3           }
  40   2         }
  41   1              
  42   1               //--------------------------------
  43   1         TI=1;
  44   1        printf("Send sucess!\n");
  45   1         TI=0;
  46   1      }
  47          
  48           


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     82    ----
   CONSTANT SIZE    =     14    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
C51 COMPILER V7.06   SMAIN                                                                 05/13/2004 15:27:10 PAGE 2   

   DATA SIZE        =      1       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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