send.lst

通过89s51实现的模拟键盘代码

C51 COMPILER V7.02a   SEND                                                                 04/23/2005 11:28:04 PAGE 1   


C51 COMPILER V7.02a, COMPILATION OF MODULE SEND
OBJECT MODULE PLACED IN send.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE send.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<head.c>
   2          #define KEYNO_MAX 26
   3          extern unsigned char data last_key;//main_t.c中定义
   4          extern bit last_f;                 //main_t.c中定义
   5          extern unsigned char data delay_count,send_delay;//protocol.c中定义
   6          extern unsigned char data first_delay,old_delay;//protocol.c中定义
   7          typedef unsigned char code *tt;
   8          extern tt code kk[];//code.c中定义
   9          bit second_f;
  10          
  11          bit send_code(unsigned char _KeyNo,bit flag)
  12          //发送按键扫描码，flag=0发送断开码，flag=1发送接通码,
  13          //返回0表示发送成功，返回1表示发送失败
  14          {
  15   1        unsigned char *Key_code;
  16   1        if(_KeyNo<=KEYNO_MAX)
  17   1          Key_code=kk[_KeyNo];
  18   1        else
  19   1          return 0;
  20   1        if(!flag)              //flag=0,则发送断码，将Key_code调整到指向断码位置.
  21   1          while(*(Key_code++));//比如Key_code={_A_M,0,_A_B,0},则while循环直到*Key_code为0才退出，同时Key_code指