interrupt.c

一个在89c52单片机上实现的多路温度采集通信程序

 
#include <REGX52.H>
#include "temp.h"
#include "tty.h"
#include <stdio.h>
  bit receive_flag;
  bit sendflg;    
  bit bufflag;    
 uchar bdata channelbit;
 uchar idata rsbuf[2][10];
// uchar idata ssbuf[10];
idata uint channeldata[8];
void ex0Interrupt(void);
void timer0Interrupt(void);
void ex1Interrupt(void);
void timer1Interrupt(void);
void recivedata(void);
void senddata(void);
void timer2interrupt(void);

void timer0Interrupt(void) interrupt 1 using 3
   {
    static uchar channel=0x00;
    TR2=0;
    TR0 =0;
    TL0=0;
	TH0=0;
   
	if(channelbit)
	{ 
	 channeldata[channel++]=timer2;
     timer2=0;
     while(!(channelbit&(0x01<<channel)))
      {
       channel++;
	    if(channel==8)
		   channel=0;
	   }
      PORT=(channel<<4)|0x0f;
	  //TR0=1;
	  TR2=1;
	}
	else channel=0x00;
	TR0=1;
  }

/*void recivedata(void)  //串行收数据中断函数
      {
        static uchar count=0;
        char cdata;
        
        
      }
 void senddata(void)
      {
        static uchar count=0;
        uchar c; 
         if(sendflg)
             {
              c = ssbuf[count++];
              SBUF = c;
               if(c=='\0'||c=='\n'||c=='\r')
               {
                count = 0;
                sendflg=0;
               }
            }
      
      }*/

/*void serial (void) interrupt 4 using 2  
             {  
               char c;
               static uchar rcount=0,scount=0;
               if(RI)
                  {
                   RI=0;
                   //recivedata();
                     c = SBUF;
                    if(c=='\0'||c=='\n'||c=='\r')
                    {
                    rcount=0;
                    receive_flag=1;
                    return;
                    }   
                   if(bufflag)
                     rsbuf[1][rcount++] = c;
                   else  
                     rsbuf[0][rcount++] = c;

                  }

                if(TI)
                   {
                     TI=0;
                     if(sendflg)
                        {
                          c = ssbuf[scount++];
                          SBUF = c;
                          if(c=='\0'||c=='\n'||c=='\r')
                          {
                           scount = 0;
                           sendflg=0;
                           }
                         }
      
                     }


             }

*/