SCON=0x50;
PCON=0x80;
TMOD=0x20;//å®æ¶å¨å·¥ä½æ¹å¼2
TH1=0xFF; //57600 11.0592
TL1=0xFF;
TR1=1;
REN=1;
OK_485=0;//485æ¥æ¶å¼å
³ï¼485æ¯232å¤ä¸ä¸ªèï¼232ææçç¥
EA=1;
ES=1;
//-------串å£åç¨åº----------------------
void writesbuf(uchar n)//å串å£
{ uchar i;
OK_485=1;//485åéå¼å
³
SBUF=n;
while(!TI);
TI=0;
OK_485=0;
for(i=0;i<1;i++); //å¿
è¦å»¶æ¶485æç¨
}
//-------串å£è¯»ç¨åº----------------------
uchar readsbuf()//读串å£ä¸ä¸ªåè
{uchar n;
while(RI==0)
{
RES++;
if(RES>200)
return 0;
};
n=SBUF;
RI=0;
return n;
}
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