wait1s.c

来自「keil C51编写的的RFM01和RFM02应用程序」· C语言 代码 · 共 32 行

#include <reg52.h>
#include "delay10ms.h"
//--------------------------------------------------------------------------------------------
//Name:wait1s
//描述：确认是否为接收命令，WAT为1则为确实为接收命令，否则为干扰
//入口参数：无
//出口参数：WAT
//Author:KongRui Date:2007/05/15
//--------------------------------------------------------------------------------------------
bit wait1s(){
 bit WAT=0;
 unsigned char n;
 delay10ms();
 TR0=1;
 for(n=0;n<100;n++){
   while(!TF0){
    if(RI){
	WAT=1;
	break;
    }
    else continue;
   }
   if(WAT) break;
   TF0=0;
   TH0=0xdc;
   TL0=0;		
 } 
 TR0=0;
 return(WAT);
}