initial.c

无线红外传感报警系统

#include "Head.h"
void initial_8880(void)
{ 
	Read_80status();
	Write_80Cont(0);   //CRA

	Write_80Cont(0x01);
	Write_80Cont(0);  //CRB
	Read_80status();

	  Write_80Cont(0x0b);   //DTMF mode

	Write_80Cont(0);   //CRB
	Read_80status();
	P1=0xff;
}
void MainInitial(void)
{   TMOD=0x15;   //00010101，timer1：16timer ;timer0:16counter
    ET0=1;
	ET1=1;
	EX0=1;
	EX1=1;
	IT1=1;  //fall down  interrupt 
	IT0=1;
	TH1=225;   //timer
	TL1=0;    //5ms
	TR1=1;
	EA=1;

}