startok.c

单片机与vb界面通信,用的是msc1210,ti公司的

#include <reg1210.h>
#include <stdio.h>
#include <absacc.h>
#include <rom1210.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>

bit HandShake=0;
bit DataStart=0; 
extern void autobaud(void);
//extern void tx_hex(char);
sbit RedLed = P3^4; 
char i=0,j=8;
float f=0;
char result[6];
char String1[6]="start";
char k=1;
extern float strtod  (char *, char **);
void serial(void) interrupt 4 using 1
{
if(RI)
   {RI=0;
    result[i++]=SBUF;
    
    if(i==5)
       {result[5]='\0';
        k=strcmp(result,String1);
        ES0=0;
       }
       
       }
    
   
    }



main()
{

char l=0;
USEC=11;
MSEC=11058;
CKCON|=0x00;
PDCON=0x05;


TR1=1;
TMOD=0x20;
TH1=0xfa;

ES0=1;
EA=1;


SCON0=0x52;
PCON=0x80;



while(1)
{ 
   // f=strtod(result,NULL); 
  if(l)
  {RedLed=0;}
     
     if(k==0)
       { l=1;
         SBUF=0x01;
         while(TI==0);
         TI=0;
         k=1;
       }
     
     

     
    

}
}